qemu-e2k/tests/qtest/migration-test.c

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test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
/*
* QTest testcase for migration
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
*
* Copyright (c) 2016-2018 Red Hat, Inc. and/or its affiliates
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
* based on the vhost-user-test.c that is:
* Copyright (c) 2014 Virtual Open Systems Sarl.
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*
*/
#include "qemu/osdep.h"
#include "libqos/libqtest.h"
#include "qapi/error.h"
#include "qapi/qmp/qdict.h"
#include "qemu/module.h"
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
#include "qemu/option.h"
#include "qemu/range.h"
#include "qemu/sockets.h"
#include "chardev/char.h"
#include "qapi/qapi-visit-sockets.h"
#include "qapi/qobject-input-visitor.h"
#include "qapi/qobject-output-visitor.h"
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
#include "migration-helpers.h"
#include "tests/migration/migration-test.h"
/* TODO actually test the results and get rid of this */
#define qtest_qmp_discard_response(...) qobject_unref(qtest_qmp(__VA_ARGS__))
unsigned start_address;
unsigned end_address;
static bool uffd_feature_thread_id;
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
/* A downtime where the test really should converge */
#define CONVERGE_DOWNTIME 1000
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
#if defined(__linux__)
#include <sys/syscall.h>
#include <sys/vfs.h>
#endif
#if defined(__linux__) && defined(__NR_userfaultfd) && defined(CONFIG_EVENTFD)
#include <sys/eventfd.h>
#include <sys/ioctl.h>
#include <linux/userfaultfd.h>
static bool ufd_version_check(void)
{
struct uffdio_api api_struct;
uint64_t ioctl_mask;
int ufd = syscall(__NR_userfaultfd, O_CLOEXEC);
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
if (ufd == -1) {
g_test_message("Skipping test: userfaultfd not available");
return false;
}
api_struct.api = UFFD_API;
api_struct.features = 0;
if (ioctl(ufd, UFFDIO_API, &api_struct)) {
g_test_message("Skipping test: UFFDIO_API failed");
return false;
}
uffd_feature_thread_id = api_struct.features & UFFD_FEATURE_THREAD_ID;
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
ioctl_mask = (__u64)1 << _UFFDIO_REGISTER |
(__u64)1 << _UFFDIO_UNREGISTER;
if ((api_struct.ioctls & ioctl_mask) != ioctl_mask) {
g_test_message("Skipping test: Missing userfault feature");
return false;
}
return true;
}
#else
static bool ufd_version_check(void)
{
g_test_message("Skipping test: Userfault not available (builtdtime)");
return false;
}
#endif
static const char *tmpfs;
/* The boot file modifies memory area in [start_address, end_address)
* repeatedly. It outputs a 'B' at a fixed rate while it's still running.
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
*/
#include "tests/migration/i386/a-b-bootblock.h"
#include "tests/migration/aarch64/a-b-kernel.h"
#include "tests/migration/s390x/a-b-bios.h"
tests/migration-test: Fix read off end of aarch64_kernel array The test aarch64 kernel is in an array defined with unsigned char aarch64_kernel[] = { [...] } which means it could be any size; currently it's quite small. However we write it to a file using init_bootfile(), which writes exactly 512 bytes to the file. This will break if we ever end up with a kernel larger than that, and will read garbage off the end of the array in the current setup where the kernel is smaller. Make init_bootfile() take an argument giving the length of the data to write. This allows us to use it for all architectures (previously s390 had a special-purpose init_bootfile_s390x which hardcoded the file to write so it could write the correct length). We assert that the x86 bootfile really is exactly 512 bytes as it should be (and as we were previously just assuming it was). This was detected by the clang-7 asan: ==15607==ERROR: AddressSanitizer: global-buffer-overflow on address 0x55a796f51d20 at pc 0x55a796b89c2f bp 0x7ffc58e89160 sp 0x7ffc58e88908 READ of size 512 at 0x55a796f51d20 thread T0 #0 0x55a796b89c2e in fwrite (/home/petmay01/linaro/qemu-from-laptop/qemu/build/sanitizers/tests/migration-test+0xb0c2e) #1 0x55a796c46492 in init_bootfile /home/petmay01/linaro/qemu-from-laptop/qemu/tests/migration-test.c:99:5 #2 0x55a796c46492 in test_migrate_start /home/petmay01/linaro/qemu-from-laptop/qemu/tests/migration-test.c:593 #3 0x55a796c44101 in test_baddest /home/petmay01/linaro/qemu-from-laptop/qemu/tests/migration-test.c:854:9 #4 0x7f906ffd3cc9 (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72cc9) #5 0x7f906ffd3bfa (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72bfa) #6 0x7f906ffd3bfa (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72bfa) #7 0x7f906ffd3ea1 in g_test_run_suite (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72ea1) #8 0x7f906ffd3ec0 in g_test_run (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72ec0) #9 0x55a796c43707 in main /home/petmay01/linaro/qemu-from-laptop/qemu/tests/migration-test.c:1187:11 #10 0x7f906e9abb96 in __libc_start_main /build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:310 #11 0x55a796b6c2d9 in _start (/home/petmay01/linaro/qemu-from-laptop/qemu/build/sanitizers/tests/migration-test+0x932d9) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20190702150311.20467-1-peter.maydell@linaro.org
2019-07-08 15:11:31 +02:00
static void init_bootfile(const char *bootpath, void *content, size_t len)
{
FILE *bootfile = fopen(bootpath, "wb");
tests/migration-test: Fix read off end of aarch64_kernel array The test aarch64 kernel is in an array defined with unsigned char aarch64_kernel[] = { [...] } which means it could be any size; currently it's quite small. However we write it to a file using init_bootfile(), which writes exactly 512 bytes to the file. This will break if we ever end up with a kernel larger than that, and will read garbage off the end of the array in the current setup where the kernel is smaller. Make init_bootfile() take an argument giving the length of the data to write. This allows us to use it for all architectures (previously s390 had a special-purpose init_bootfile_s390x which hardcoded the file to write so it could write the correct length). We assert that the x86 bootfile really is exactly 512 bytes as it should be (and as we were previously just assuming it was). This was detected by the clang-7 asan: ==15607==ERROR: AddressSanitizer: global-buffer-overflow on address 0x55a796f51d20 at pc 0x55a796b89c2f bp 0x7ffc58e89160 sp 0x7ffc58e88908 READ of size 512 at 0x55a796f51d20 thread T0 #0 0x55a796b89c2e in fwrite (/home/petmay01/linaro/qemu-from-laptop/qemu/build/sanitizers/tests/migration-test+0xb0c2e) #1 0x55a796c46492 in init_bootfile /home/petmay01/linaro/qemu-from-laptop/qemu/tests/migration-test.c:99:5 #2 0x55a796c46492 in test_migrate_start /home/petmay01/linaro/qemu-from-laptop/qemu/tests/migration-test.c:593 #3 0x55a796c44101 in test_baddest /home/petmay01/linaro/qemu-from-laptop/qemu/tests/migration-test.c:854:9 #4 0x7f906ffd3cc9 (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72cc9) #5 0x7f906ffd3bfa (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72bfa) #6 0x7f906ffd3bfa (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72bfa) #7 0x7f906ffd3ea1 in g_test_run_suite (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72ea1) #8 0x7f906ffd3ec0 in g_test_run (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72ec0) #9 0x55a796c43707 in main /home/petmay01/linaro/qemu-from-laptop/qemu/tests/migration-test.c:1187:11 #10 0x7f906e9abb96 in __libc_start_main /build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:310 #11 0x55a796b6c2d9 in _start (/home/petmay01/linaro/qemu-from-laptop/qemu/build/sanitizers/tests/migration-test+0x932d9) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20190702150311.20467-1-peter.maydell@linaro.org
2019-07-08 15:11:31 +02:00
g_assert_cmpint(fwrite(content, len, 1, bootfile), ==, 1);
fclose(bootfile);
}
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
/*
* Wait for some output in the serial output file,
* we get an 'A' followed by an endless string of 'B's
* but on the destination we won't have the A.
*/
static void wait_for_serial(const char *side)
{
char *serialpath = g_strdup_printf("%s/%s", tmpfs, side);
FILE *serialfile = fopen(serialpath, "r");
const char *arch = qtest_get_arch();
int started = (strcmp(side, "src_serial") == 0 &&
strcmp(arch, "ppc64") == 0) ? 0 : 1;
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
g_free(serialpath);
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
do {
int readvalue = fgetc(serialfile);
if (!started) {
/* SLOF prints its banner before starting test,
* to ignore it, mark the start of the test with '_',
* ignore all characters until this marker
*/
switch (readvalue) {
case '_':
started = 1;
break;
case EOF:
fseek(serialfile, 0, SEEK_SET);
usleep(1000);
break;
}
continue;
}
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
switch (readvalue) {
case 'A':
/* Fine */
break;
case 'B':
/* It's alive! */
fclose(serialfile);
return;
case EOF:
started = (strcmp(side, "src_serial") == 0 &&
strcmp(arch, "ppc64") == 0) ? 0 : 1;
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
fseek(serialfile, 0, SEEK_SET);
usleep(1000);
break;
default:
fprintf(stderr, "Unexpected %d on %s serial\n", readvalue, side);
g_assert_not_reached();
}
} while (true);
}
/*
* It's tricky to use qemu's migration event capability with qtest,
* events suddenly appearing confuse the qmp()/hmp() responses.
*/
static int64_t read_ram_property_int(QTestState *who, const char *property)
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
{
QDict *rsp_return, *rsp_ram;
int64_t result;
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
rsp_return = migrate_query(who);
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
if (!qdict_haskey(rsp_return, "ram")) {
/* Still in setup */
result = 0;
} else {
rsp_ram = qdict_get_qdict(rsp_return, "ram");
result = qdict_get_try_int(rsp_ram, property, 0);
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
}
qobject_unref(rsp_return);
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
return result;
}
static int64_t read_migrate_property_int(QTestState *who, const char *property)
{
QDict *rsp_return;
int64_t result;
rsp_return = migrate_query(who);
result = qdict_get_try_int(rsp_return, property, 0);
qobject_unref(rsp_return);
return result;
}
static uint64_t get_migration_pass(QTestState *who)
{
return read_ram_property_int(who, "dirty-sync-count");
}
static void read_blocktime(QTestState *who)
{
QDict *rsp_return;
rsp_return = migrate_query(who);
g_assert(qdict_haskey(rsp_return, "postcopy-blocktime"));
qobject_unref(rsp_return);
}
static void wait_for_migration_pass(QTestState *who)
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
{
uint64_t initial_pass = get_migration_pass(who);
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
uint64_t pass;
/* Wait for the 1st sync */
while (!got_stop && !initial_pass) {
usleep(1000);
initial_pass = get_migration_pass(who);
}
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
do {
usleep(1000);
pass = get_migration_pass(who);
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
} while (pass == initial_pass && !got_stop);
}
static void check_guests_ram(QTestState *who)
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
{
/* Our ASM test will have been incrementing one byte from each page from
* start_address to < end_address in order. This gives us a constraint
* that any page's byte should be equal or less than the previous pages
* byte (mod 256); and they should all be equal except for one transition
* at the point where we meet the incrementer. (We're running this with
* the guest stopped).
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
*/
unsigned address;
uint8_t first_byte;
uint8_t last_byte;
bool hit_edge = false;
int bad = 0;
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
qtest_memread(who, start_address, &first_byte, 1);
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
last_byte = first_byte;
for (address = start_address + TEST_MEM_PAGE_SIZE; address < end_address;
address += TEST_MEM_PAGE_SIZE)
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
{
uint8_t b;
qtest_memread(who, address, &b, 1);
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
if (b != last_byte) {
if (((b + 1) % 256) == last_byte && !hit_edge) {
/* This is OK, the guest stopped at the point of
* incrementing the previous page but didn't get
* to us yet.
*/
hit_edge = true;
last_byte = b;
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
} else {
bad++;
if (bad <= 10) {
fprintf(stderr, "Memory content inconsistency at %x"
" first_byte = %x last_byte = %x current = %x"
" hit_edge = %x\n",
address, first_byte, last_byte, b, hit_edge);
}
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
}
}
}
if (bad >= 10) {
fprintf(stderr, "and in another %d pages", bad - 10);
}
g_assert(bad == 0);
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
}
static void cleanup(const char *filename)
{
char *path = g_strdup_printf("%s/%s", tmpfs, filename);
unlink(path);
g_free(path);
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
}
static char *SocketAddress_to_str(SocketAddress *addr)
{
switch (addr->type) {
case SOCKET_ADDRESS_TYPE_INET:
return g_strdup_printf("tcp:%s:%s",
addr->u.inet.host,
addr->u.inet.port);
case SOCKET_ADDRESS_TYPE_UNIX:
return g_strdup_printf("unix:%s",
addr->u.q_unix.path);
case SOCKET_ADDRESS_TYPE_FD:
return g_strdup_printf("fd:%s", addr->u.fd.str);
case SOCKET_ADDRESS_TYPE_VSOCK:
return g_strdup_printf("tcp:%s:%s",
addr->u.vsock.cid,
addr->u.vsock.port);
default:
return g_strdup("unknown address type");
}
}
static char *migrate_get_socket_address(QTestState *who, const char *parameter)
{
QDict *rsp;
char *result;
SocketAddressList *addrs;
Visitor *iv = NULL;
QObject *object;
rsp = migrate_query(who);
object = qdict_get(rsp, parameter);
iv = qobject_input_visitor_new(object);
visit_type_SocketAddressList(iv, NULL, &addrs, &error_abort);
visit_free(iv);
/* we are only using a single address */
result = SocketAddress_to_str(addrs->value);
qapi_free_SocketAddressList(addrs);
qobject_unref(rsp);
return result;
}
static long long migrate_get_parameter_int(QTestState *who,
const char *parameter)
{
QDict *rsp;
long long result;
rsp = wait_command(who, "{ 'execute': 'query-migrate-parameters' }");
result = qdict_get_int(rsp, parameter);
qobject_unref(rsp);
return result;
}
static void migrate_check_parameter_int(QTestState *who, const char *parameter,
long long value)
{
long long result;
result = migrate_get_parameter_int(who, parameter);
g_assert_cmpint(result, ==, value);
}
static void migrate_set_parameter_int(QTestState *who, const char *parameter,
long long value)
{
QDict *rsp;
rsp = qtest_qmp(who,
"{ 'execute': 'migrate-set-parameters',"
"'arguments': { %s: %lld } }",
parameter, value);
g_assert(qdict_haskey(rsp, "return"));
qobject_unref(rsp);
migrate_check_parameter_int(who, parameter, value);
}
static char *migrate_get_parameter_str(QTestState *who,
const char *parameter)
{
QDict *rsp;
char *result;
rsp = wait_command(who, "{ 'execute': 'query-migrate-parameters' }");
result = g_strdup(qdict_get_str(rsp, parameter));
qobject_unref(rsp);
return result;
}
static void migrate_check_parameter_str(QTestState *who, const char *parameter,
const char *value)
{
char *result;
result = migrate_get_parameter_str(who, parameter);
g_assert_cmpstr(result, ==, value);
g_free(result);
}
static void migrate_set_parameter_str(QTestState *who, const char *parameter,
const char *value)
{
QDict *rsp;
rsp = qtest_qmp(who,
"{ 'execute': 'migrate-set-parameters',"
"'arguments': { %s: %s } }",
parameter, value);
g_assert(qdict_haskey(rsp, "return"));
qobject_unref(rsp);
migrate_check_parameter_str(who, parameter, value);
}
static void migrate_pause(QTestState *who)
{
QDict *rsp;
rsp = wait_command(who, "{ 'execute': 'migrate-pause' }");
qobject_unref(rsp);
}
static void migrate_continue(QTestState *who, const char *state)
{
QDict *rsp;
rsp = wait_command(who,
"{ 'execute': 'migrate-continue',"
" 'arguments': { 'state': %s } }",
state);
qobject_unref(rsp);
}
static void migrate_recover(QTestState *who, const char *uri)
{
QDict *rsp;
rsp = wait_command(who,
"{ 'execute': 'migrate-recover', "
" 'id': 'recover-cmd', "
" 'arguments': { 'uri': %s } }",
uri);
qobject_unref(rsp);
}
static void migrate_cancel(QTestState *who)
{
QDict *rsp;
rsp = wait_command(who, "{ 'execute': 'migrate_cancel' }");
qobject_unref(rsp);
}
static void migrate_set_capability(QTestState *who, const char *capability,
bool value)
{
QDict *rsp;
rsp = qtest_qmp(who,
"{ 'execute': 'migrate-set-capabilities',"
"'arguments': { "
"'capabilities': [ { "
"'capability': %s, 'state': %i } ] } }",
capability, value);
g_assert(qdict_haskey(rsp, "return"));
qobject_unref(rsp);
}
static void migrate_postcopy_start(QTestState *from, QTestState *to)
{
QDict *rsp;
rsp = wait_command(from, "{ 'execute': 'migrate-start-postcopy' }");
qobject_unref(rsp);
if (!got_stop) {
qtest_qmp_eventwait(from, "STOP");
}
qtest_qmp_eventwait(to, "RESUME");
}
typedef struct {
bool hide_stderr;
bool use_shmem;
/* only launch the target process */
bool only_target;
char *opts_source;
char *opts_target;
} MigrateStart;
static MigrateStart *migrate_start_new(void)
{
MigrateStart *args = g_new0(MigrateStart, 1);
args->opts_source = g_strdup("");
args->opts_target = g_strdup("");
return args;
}
static void migrate_start_destroy(MigrateStart *args)
{
g_free(args->opts_source);
g_free(args->opts_target);
g_free(args);
}
static int test_migrate_start(QTestState **from, QTestState **to,
const char *uri, MigrateStart *args)
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
{
gchar *arch_source, *arch_target;
gchar *cmd_source, *cmd_target;
const gchar *ignore_stderr;
char *bootpath = NULL;
char *shmem_opts;
char *shmem_path;
const char *arch = qtest_get_arch();
const char *machine_opts = NULL;
const char *memory_size;
int ret = 0;
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
if (args->use_shmem) {
if (!g_file_test("/dev/shm", G_FILE_TEST_IS_DIR)) {
g_test_skip("/dev/shm is not supported");
ret = -1;
goto out;
}
}
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
got_stop = false;
bootpath = g_strdup_printf("%s/bootsect", tmpfs);
if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
tests/migration-test: Fix read off end of aarch64_kernel array The test aarch64 kernel is in an array defined with unsigned char aarch64_kernel[] = { [...] } which means it could be any size; currently it's quite small. However we write it to a file using init_bootfile(), which writes exactly 512 bytes to the file. This will break if we ever end up with a kernel larger than that, and will read garbage off the end of the array in the current setup where the kernel is smaller. Make init_bootfile() take an argument giving the length of the data to write. This allows us to use it for all architectures (previously s390 had a special-purpose init_bootfile_s390x which hardcoded the file to write so it could write the correct length). We assert that the x86 bootfile really is exactly 512 bytes as it should be (and as we were previously just assuming it was). This was detected by the clang-7 asan: ==15607==ERROR: AddressSanitizer: global-buffer-overflow on address 0x55a796f51d20 at pc 0x55a796b89c2f bp 0x7ffc58e89160 sp 0x7ffc58e88908 READ of size 512 at 0x55a796f51d20 thread T0 #0 0x55a796b89c2e in fwrite (/home/petmay01/linaro/qemu-from-laptop/qemu/build/sanitizers/tests/migration-test+0xb0c2e) #1 0x55a796c46492 in init_bootfile /home/petmay01/linaro/qemu-from-laptop/qemu/tests/migration-test.c:99:5 #2 0x55a796c46492 in test_migrate_start /home/petmay01/linaro/qemu-from-laptop/qemu/tests/migration-test.c:593 #3 0x55a796c44101 in test_baddest /home/petmay01/linaro/qemu-from-laptop/qemu/tests/migration-test.c:854:9 #4 0x7f906ffd3cc9 (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72cc9) #5 0x7f906ffd3bfa (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72bfa) #6 0x7f906ffd3bfa (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72bfa) #7 0x7f906ffd3ea1 in g_test_run_suite (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72ea1) #8 0x7f906ffd3ec0 in g_test_run (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72ec0) #9 0x55a796c43707 in main /home/petmay01/linaro/qemu-from-laptop/qemu/tests/migration-test.c:1187:11 #10 0x7f906e9abb96 in __libc_start_main /build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:310 #11 0x55a796b6c2d9 in _start (/home/petmay01/linaro/qemu-from-laptop/qemu/build/sanitizers/tests/migration-test+0x932d9) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20190702150311.20467-1-peter.maydell@linaro.org
2019-07-08 15:11:31 +02:00
/* the assembled x86 boot sector should be exactly one sector large */
assert(sizeof(x86_bootsect) == 512);
init_bootfile(bootpath, x86_bootsect, sizeof(x86_bootsect));
memory_size = "150M";
arch_source = g_strdup_printf("-drive file=%s,format=raw", bootpath);
arch_target = g_strdup(arch_source);
start_address = X86_TEST_MEM_START;
end_address = X86_TEST_MEM_END;
} else if (g_str_equal(arch, "s390x")) {
tests/migration-test: Fix read off end of aarch64_kernel array The test aarch64 kernel is in an array defined with unsigned char aarch64_kernel[] = { [...] } which means it could be any size; currently it's quite small. However we write it to a file using init_bootfile(), which writes exactly 512 bytes to the file. This will break if we ever end up with a kernel larger than that, and will read garbage off the end of the array in the current setup where the kernel is smaller. Make init_bootfile() take an argument giving the length of the data to write. This allows us to use it for all architectures (previously s390 had a special-purpose init_bootfile_s390x which hardcoded the file to write so it could write the correct length). We assert that the x86 bootfile really is exactly 512 bytes as it should be (and as we were previously just assuming it was). This was detected by the clang-7 asan: ==15607==ERROR: AddressSanitizer: global-buffer-overflow on address 0x55a796f51d20 at pc 0x55a796b89c2f bp 0x7ffc58e89160 sp 0x7ffc58e88908 READ of size 512 at 0x55a796f51d20 thread T0 #0 0x55a796b89c2e in fwrite (/home/petmay01/linaro/qemu-from-laptop/qemu/build/sanitizers/tests/migration-test+0xb0c2e) #1 0x55a796c46492 in init_bootfile /home/petmay01/linaro/qemu-from-laptop/qemu/tests/migration-test.c:99:5 #2 0x55a796c46492 in test_migrate_start /home/petmay01/linaro/qemu-from-laptop/qemu/tests/migration-test.c:593 #3 0x55a796c44101 in test_baddest /home/petmay01/linaro/qemu-from-laptop/qemu/tests/migration-test.c:854:9 #4 0x7f906ffd3cc9 (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72cc9) #5 0x7f906ffd3bfa (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72bfa) #6 0x7f906ffd3bfa (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72bfa) #7 0x7f906ffd3ea1 in g_test_run_suite (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72ea1) #8 0x7f906ffd3ec0 in g_test_run (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72ec0) #9 0x55a796c43707 in main /home/petmay01/linaro/qemu-from-laptop/qemu/tests/migration-test.c:1187:11 #10 0x7f906e9abb96 in __libc_start_main /build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:310 #11 0x55a796b6c2d9 in _start (/home/petmay01/linaro/qemu-from-laptop/qemu/build/sanitizers/tests/migration-test+0x932d9) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20190702150311.20467-1-peter.maydell@linaro.org
2019-07-08 15:11:31 +02:00
init_bootfile(bootpath, s390x_elf, sizeof(s390x_elf));
memory_size = "128M";
arch_source = g_strdup_printf("-bios %s", bootpath);
arch_target = g_strdup(arch_source);
start_address = S390_TEST_MEM_START;
end_address = S390_TEST_MEM_END;
} else if (strcmp(arch, "ppc64") == 0) {
machine_opts = "vsmt=8";
memory_size = "256M";
start_address = PPC_TEST_MEM_START;
end_address = PPC_TEST_MEM_END;
arch_source = g_strdup_printf("-nodefaults "
"-prom-env 'use-nvramrc?=true' -prom-env "
"'nvramrc=hex .\" _\" begin %x %x "
"do i c@ 1 + i c! 1000 +loop .\" B\" 0 "
"until'", end_address, start_address);
arch_target = g_strdup("");
} else if (strcmp(arch, "aarch64") == 0) {
tests/migration-test: Fix read off end of aarch64_kernel array The test aarch64 kernel is in an array defined with unsigned char aarch64_kernel[] = { [...] } which means it could be any size; currently it's quite small. However we write it to a file using init_bootfile(), which writes exactly 512 bytes to the file. This will break if we ever end up with a kernel larger than that, and will read garbage off the end of the array in the current setup where the kernel is smaller. Make init_bootfile() take an argument giving the length of the data to write. This allows us to use it for all architectures (previously s390 had a special-purpose init_bootfile_s390x which hardcoded the file to write so it could write the correct length). We assert that the x86 bootfile really is exactly 512 bytes as it should be (and as we were previously just assuming it was). This was detected by the clang-7 asan: ==15607==ERROR: AddressSanitizer: global-buffer-overflow on address 0x55a796f51d20 at pc 0x55a796b89c2f bp 0x7ffc58e89160 sp 0x7ffc58e88908 READ of size 512 at 0x55a796f51d20 thread T0 #0 0x55a796b89c2e in fwrite (/home/petmay01/linaro/qemu-from-laptop/qemu/build/sanitizers/tests/migration-test+0xb0c2e) #1 0x55a796c46492 in init_bootfile /home/petmay01/linaro/qemu-from-laptop/qemu/tests/migration-test.c:99:5 #2 0x55a796c46492 in test_migrate_start /home/petmay01/linaro/qemu-from-laptop/qemu/tests/migration-test.c:593 #3 0x55a796c44101 in test_baddest /home/petmay01/linaro/qemu-from-laptop/qemu/tests/migration-test.c:854:9 #4 0x7f906ffd3cc9 (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72cc9) #5 0x7f906ffd3bfa (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72bfa) #6 0x7f906ffd3bfa (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72bfa) #7 0x7f906ffd3ea1 in g_test_run_suite (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72ea1) #8 0x7f906ffd3ec0 in g_test_run (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x72ec0) #9 0x55a796c43707 in main /home/petmay01/linaro/qemu-from-laptop/qemu/tests/migration-test.c:1187:11 #10 0x7f906e9abb96 in __libc_start_main /build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:310 #11 0x55a796b6c2d9 in _start (/home/petmay01/linaro/qemu-from-laptop/qemu/build/sanitizers/tests/migration-test+0x932d9) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20190702150311.20467-1-peter.maydell@linaro.org
2019-07-08 15:11:31 +02:00
init_bootfile(bootpath, aarch64_kernel, sizeof(aarch64_kernel));
machine_opts = "virt,gic-version=max";
memory_size = "150M";
arch_source = g_strdup_printf("-cpu max "
"-kernel %s",
bootpath);
arch_target = g_strdup(arch_source);
start_address = ARM_TEST_MEM_START;
end_address = ARM_TEST_MEM_END;
g_assert(sizeof(aarch64_kernel) <= ARM_TEST_MAX_KERNEL_SIZE);
} else {
g_assert_not_reached();
}
g_free(bootpath);
if (args->hide_stderr) {
ignore_stderr = "2>/dev/null";
} else {
ignore_stderr = "";
}
if (args->use_shmem) {
shmem_path = g_strdup_printf("/dev/shm/qemu-%d", getpid());
shmem_opts = g_strdup_printf(
"-object memory-backend-file,id=mem0,size=%s"
",mem-path=%s,share=on -numa node,memdev=mem0",
memory_size, shmem_path);
} else {
shmem_path = NULL;
shmem_opts = g_strdup("");
}
cmd_source = g_strdup_printf("-accel kvm -accel tcg%s%s "
"-name source,debug-threads=on "
"-m %s "
"-serial file:%s/src_serial "
"%s %s %s %s",
machine_opts ? " -machine " : "",
machine_opts ? machine_opts : "",
memory_size, tmpfs,
arch_source, shmem_opts, args->opts_source,
ignore_stderr);
g_free(arch_source);
if (!args->only_target) {
*from = qtest_init(cmd_source);
}
g_free(cmd_source);
cmd_target = g_strdup_printf("-accel kvm -accel tcg%s%s "
"-name target,debug-threads=on "
"-m %s "
"-serial file:%s/dest_serial "
"-incoming %s "
"%s %s %s %s",
machine_opts ? " -machine " : "",
machine_opts ? machine_opts : "",
memory_size, tmpfs, uri,
arch_target, shmem_opts,
args->opts_target, ignore_stderr);
g_free(arch_target);
*to = qtest_init(cmd_target);
g_free(cmd_target);
g_free(shmem_opts);
/*
* Remove shmem file immediately to avoid memory leak in test failed case.
* It's valid becase QEMU has already opened this file
*/
if (args->use_shmem) {
unlink(shmem_path);
g_free(shmem_path);
}
out:
migrate_start_destroy(args);
return ret;
}
static void test_migrate_end(QTestState *from, QTestState *to, bool test_dest)
{
unsigned char dest_byte_a, dest_byte_b, dest_byte_c, dest_byte_d;
qtest_quit(from);
if (test_dest) {
qtest_memread(to, start_address, &dest_byte_a, 1);
/* Destination still running, wait for a byte to change */
do {
qtest_memread(to, start_address, &dest_byte_b, 1);
usleep(1000 * 10);
} while (dest_byte_a == dest_byte_b);
qtest_qmp_discard_response(to, "{ 'execute' : 'stop'}");
/* With it stopped, check nothing changes */
qtest_memread(to, start_address, &dest_byte_c, 1);
usleep(1000 * 200);
qtest_memread(to, start_address, &dest_byte_d, 1);
g_assert_cmpint(dest_byte_c, ==, dest_byte_d);
check_guests_ram(to);
}
qtest_quit(to);
cleanup("bootsect");
cleanup("migsocket");
cleanup("src_serial");
cleanup("dest_serial");
}
static void deprecated_set_downtime(QTestState *who, const double value)
{
QDict *rsp;
rsp = qtest_qmp(who,
"{ 'execute': 'migrate_set_downtime',"
" 'arguments': { 'value': %f } }", value);
g_assert(qdict_haskey(rsp, "return"));
qobject_unref(rsp);
migrate_check_parameter_int(who, "downtime-limit", value * 1000);
}
static void deprecated_set_speed(QTestState *who, long long value)
{
QDict *rsp;
rsp = qtest_qmp(who, "{ 'execute': 'migrate_set_speed',"
"'arguments': { 'value': %lld } }", value);
g_assert(qdict_haskey(rsp, "return"));
qobject_unref(rsp);
migrate_check_parameter_int(who, "max-bandwidth", value);
}
static void deprecated_set_cache_size(QTestState *who, long long value)
{
QDict *rsp;
rsp = qtest_qmp(who, "{ 'execute': 'migrate-set-cache-size',"
"'arguments': { 'value': %lld } }", value);
g_assert(qdict_haskey(rsp, "return"));
qobject_unref(rsp);
migrate_check_parameter_int(who, "xbzrle-cache-size", value);
}
static void test_deprecated(void)
{
QTestState *from;
from = qtest_init("-machine none");
deprecated_set_downtime(from, 0.12345);
deprecated_set_speed(from, 12345);
deprecated_set_cache_size(from, 4096);
qtest_quit(from);
}
static int migrate_postcopy_prepare(QTestState **from_ptr,
QTestState **to_ptr,
MigrateStart *args)
{
char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs);
QTestState *from, *to;
if (test_migrate_start(&from, &to, uri, args)) {
return -1;
}
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
migrate_set_capability(from, "postcopy-ram", true);
migrate_set_capability(to, "postcopy-ram", true);
migrate_set_capability(to, "postcopy-blocktime", true);
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
/* We want to pick a speed slow enough that the test completes
* quickly, but that it doesn't complete precopy even on a slow
* machine, so also set the downtime.
*/
migrate_set_parameter_int(from, "max-bandwidth", 30000000);
migrate_set_parameter_int(from, "downtime-limit", 1);
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
/* Wait for the first serial output from the source */
wait_for_serial("src_serial");
migrate_qmp(from, uri, "{}");
g_free(uri);
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
wait_for_migration_pass(from);
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
*from_ptr = from;
*to_ptr = to;
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
return 0;
}
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
static void migrate_postcopy_complete(QTestState *from, QTestState *to)
{
wait_for_migration_complete(from);
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
/* Make sure we get at least one "B" on destination */
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
wait_for_serial("dest_serial");
if (uffd_feature_thread_id) {
read_blocktime(to);
}
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
test_migrate_end(from, to, true);
}
static void test_postcopy(void)
{
MigrateStart *args = migrate_start_new();
QTestState *from, *to;
if (migrate_postcopy_prepare(&from, &to, args)) {
return;
}
migrate_postcopy_start(from, to);
migrate_postcopy_complete(from, to);
}
static void test_postcopy_recovery(void)
{
MigrateStart *args = migrate_start_new();
QTestState *from, *to;
char *uri;
args->hide_stderr = true;
if (migrate_postcopy_prepare(&from, &to, args)) {
return;
}
/* Turn postcopy speed down, 4K/s is slow enough on any machines */
migrate_set_parameter_int(from, "max-postcopy-bandwidth", 4096);
/* Now we start the postcopy */
migrate_postcopy_start(from, to);
/*
* Wait until postcopy is really started; we can only run the
* migrate-pause command during a postcopy
*/
wait_for_migration_status(from, "postcopy-active", NULL);
/*
* Manually stop the postcopy migration. This emulates a network
* failure with the migration socket
*/
migrate_pause(from);
/*
* Wait for destination side to reach postcopy-paused state. The
* migrate-recover command can only succeed if destination machine
* is in the paused state
*/
wait_for_migration_status(to, "postcopy-paused",
(const char * []) { "failed", "active",
"completed", NULL });
/*
* Create a new socket to emulate a new channel that is different
* from the broken migration channel; tell the destination to
* listen to the new port
*/
uri = g_strdup_printf("unix:%s/migsocket-recover", tmpfs);
migrate_recover(to, uri);
/*
* Try to rebuild the migration channel using the resume flag and
* the newly created channel
*/
wait_for_migration_status(from, "postcopy-paused",
(const char * []) { "failed", "active",
"completed", NULL });
migrate_qmp(from, uri, "{'resume': true}");
g_free(uri);
/* Restore the postcopy bandwidth to unlimited */
migrate_set_parameter_int(from, "max-postcopy-bandwidth", 0);
migrate_postcopy_complete(from, to);
}
static void test_baddest(void)
{
MigrateStart *args = migrate_start_new();
QTestState *from, *to;
args->hide_stderr = true;
if (test_migrate_start(&from, &to, "tcp:0:0", args)) {
return;
}
migrate_qmp(from, "tcp:0:0", "{}");
wait_for_migration_fail(from, false);
test_migrate_end(from, to, false);
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
}
static void test_precopy_unix(void)
{
char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs);
MigrateStart *args = migrate_start_new();
QTestState *from, *to;
if (test_migrate_start(&from, &to, uri, args)) {
return;
}
/* We want to pick a speed slow enough that the test completes
* quickly, but that it doesn't complete precopy even on a slow
* machine, so also set the downtime.
*/
/* 1 ms should make it not converge*/
migrate_set_parameter_int(from, "downtime-limit", 1);
/* 1GB/s */
migrate_set_parameter_int(from, "max-bandwidth", 1000000000);
/* Wait for the first serial output from the source */
wait_for_serial("src_serial");
migrate_qmp(from, uri, "{}");
wait_for_migration_pass(from);
migrate_set_parameter_int(from, "downtime-limit", CONVERGE_DOWNTIME);
if (!got_stop) {
qtest_qmp_eventwait(from, "STOP");
}
qtest_qmp_eventwait(to, "RESUME");
wait_for_serial("dest_serial");
wait_for_migration_complete(from);
test_migrate_end(from, to, true);
g_free(uri);
}
#if 0
/* Currently upset on aarch64 TCG */
static void test_ignore_shared(void)
{
char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs);
QTestState *from, *to;
if (test_migrate_start(&from, &to, uri, false, true, NULL, NULL)) {
return;
}
migrate_set_capability(from, "x-ignore-shared", true);
migrate_set_capability(to, "x-ignore-shared", true);
/* Wait for the first serial output from the source */
wait_for_serial("src_serial");
migrate_qmp(from, uri, "{}");
wait_for_migration_pass(from);
if (!got_stop) {
qtest_qmp_eventwait(from, "STOP");
}
qtest_qmp_eventwait(to, "RESUME");
wait_for_serial("dest_serial");
wait_for_migration_complete(from);
/* Check whether shared RAM has been really skipped */
g_assert_cmpint(read_ram_property_int(from, "transferred"), <, 1024 * 1024);
test_migrate_end(from, to, true);
g_free(uri);
}
#endif
static void test_xbzrle(const char *uri)
{
MigrateStart *args = migrate_start_new();
QTestState *from, *to;
if (test_migrate_start(&from, &to, uri, args)) {
return;
}
/*
* We want to pick a speed slow enough that the test completes
* quickly, but that it doesn't complete precopy even on a slow
* machine, so also set the downtime.
*/
/* 1 ms should make it not converge*/
migrate_set_parameter_int(from, "downtime-limit", 1);
/* 1GB/s */
migrate_set_parameter_int(from, "max-bandwidth", 1000000000);
migrate_set_parameter_int(from, "xbzrle-cache-size", 33554432);
migrate_set_capability(from, "xbzrle", "true");
migrate_set_capability(to, "xbzrle", "true");
/* Wait for the first serial output from the source */
wait_for_serial("src_serial");
migrate_qmp(from, uri, "{}");
wait_for_migration_pass(from);
/* Make sure we have 2 passes, so the xbzrle cache gets a workout */
wait_for_migration_pass(from);
/* 1000ms should converge */
migrate_set_parameter_int(from, "downtime-limit", 1000);
if (!got_stop) {
qtest_qmp_eventwait(from, "STOP");
}
qtest_qmp_eventwait(to, "RESUME");
wait_for_serial("dest_serial");
wait_for_migration_complete(from);
test_migrate_end(from, to, true);
}
static void test_xbzrle_unix(void)
{
char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs);
test_xbzrle(uri);
g_free(uri);
}
static void test_precopy_tcp(void)
{
MigrateStart *args = migrate_start_new();
char *uri;
QTestState *from, *to;
if (test_migrate_start(&from, &to, "tcp:127.0.0.1:0", args)) {
return;
}
/*
* We want to pick a speed slow enough that the test completes
* quickly, but that it doesn't complete precopy even on a slow
* machine, so also set the downtime.
*/
/* 1 ms should make it not converge*/
migrate_set_parameter_int(from, "downtime-limit", 1);
/* 1GB/s */
migrate_set_parameter_int(from, "max-bandwidth", 1000000000);
/* Wait for the first serial output from the source */
wait_for_serial("src_serial");
uri = migrate_get_socket_address(to, "socket-address");
migrate_qmp(from, uri, "{}");
wait_for_migration_pass(from);
migrate_set_parameter_int(from, "downtime-limit", CONVERGE_DOWNTIME);
if (!got_stop) {
qtest_qmp_eventwait(from, "STOP");
}
qtest_qmp_eventwait(to, "RESUME");
wait_for_serial("dest_serial");
wait_for_migration_complete(from);
test_migrate_end(from, to, true);
g_free(uri);
}
static void test_migrate_fd_proto(void)
{
MigrateStart *args = migrate_start_new();
QTestState *from, *to;
int ret;
int pair[2];
QDict *rsp;
const char *error_desc;
if (test_migrate_start(&from, &to, "defer", args)) {
return;
}
/*
* We want to pick a speed slow enough that the test completes
* quickly, but that it doesn't complete precopy even on a slow
* machine, so also set the downtime.
*/
/* 1 ms should make it not converge */
migrate_set_parameter_int(from, "downtime-limit", 1);
/* 1GB/s */
migrate_set_parameter_int(from, "max-bandwidth", 1000000000);
/* Wait for the first serial output from the source */
wait_for_serial("src_serial");
/* Create two connected sockets for migration */
ret = socketpair(PF_LOCAL, SOCK_STREAM, 0, pair);
g_assert_cmpint(ret, ==, 0);
/* Send the 1st socket to the target */
rsp = wait_command_fd(to, pair[0],
"{ 'execute': 'getfd',"
" 'arguments': { 'fdname': 'fd-mig' }}");
qobject_unref(rsp);
close(pair[0]);
/* Start incoming migration from the 1st socket */
rsp = wait_command(to, "{ 'execute': 'migrate-incoming',"
" 'arguments': { 'uri': 'fd:fd-mig' }}");
qobject_unref(rsp);
/* Send the 2nd socket to the target */
rsp = wait_command_fd(from, pair[1],
"{ 'execute': 'getfd',"
" 'arguments': { 'fdname': 'fd-mig' }}");
qobject_unref(rsp);
close(pair[1]);
/* Start migration to the 2nd socket*/
migrate_qmp(from, "fd:fd-mig", "{}");
wait_for_migration_pass(from);
migrate_set_parameter_int(from, "downtime-limit", CONVERGE_DOWNTIME);
if (!got_stop) {
qtest_qmp_eventwait(from, "STOP");
}
qtest_qmp_eventwait(to, "RESUME");
/* Test closing fds */
/* We assume, that QEMU removes named fd from its list,
* so this should fail */
rsp = qtest_qmp(from, "{ 'execute': 'closefd',"
" 'arguments': { 'fdname': 'fd-mig' }}");
g_assert_true(qdict_haskey(rsp, "error"));
error_desc = qdict_get_str(qdict_get_qdict(rsp, "error"), "desc");
g_assert_cmpstr(error_desc, ==, "File descriptor named 'fd-mig' not found");
qobject_unref(rsp);
rsp = qtest_qmp(to, "{ 'execute': 'closefd',"
" 'arguments': { 'fdname': 'fd-mig' }}");
g_assert_true(qdict_haskey(rsp, "error"));
error_desc = qdict_get_str(qdict_get_qdict(rsp, "error"), "desc");
g_assert_cmpstr(error_desc, ==, "File descriptor named 'fd-mig' not found");
qobject_unref(rsp);
/* Complete migration */
wait_for_serial("dest_serial");
wait_for_migration_complete(from);
test_migrate_end(from, to, true);
}
static void do_test_validate_uuid(MigrateStart *args, bool should_fail)
{
char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs);
QTestState *from, *to;
if (test_migrate_start(&from, &to, uri, args)) {
return;
}
/*
* UUID validation is at the begin of migration. So, the main process of
* migration is not interesting for us here. Thus, set huge downtime for
* very fast migration.
*/
migrate_set_parameter_int(from, "downtime-limit", 1000000);
migrate_set_capability(from, "validate-uuid", true);
/* Wait for the first serial output from the source */
wait_for_serial("src_serial");
migrate_qmp(from, uri, "{}");
if (should_fail) {
qtest_set_expected_status(to, 1);
wait_for_migration_fail(from, true);
} else {
wait_for_migration_complete(from);
}
test_migrate_end(from, to, false);
g_free(uri);
}
static void test_validate_uuid(void)
{
MigrateStart *args = migrate_start_new();
g_free(args->opts_source);
g_free(args->opts_target);
args->opts_source = g_strdup("-uuid 11111111-1111-1111-1111-111111111111");
args->opts_target = g_strdup("-uuid 11111111-1111-1111-1111-111111111111");
do_test_validate_uuid(args, false);
}
static void test_validate_uuid_error(void)
{
MigrateStart *args = migrate_start_new();
g_free(args->opts_source);
g_free(args->opts_target);
args->opts_source = g_strdup("-uuid 11111111-1111-1111-1111-111111111111");
args->opts_target = g_strdup("-uuid 22222222-2222-2222-2222-222222222222");
args->hide_stderr = true;
do_test_validate_uuid(args, true);
}
static void test_validate_uuid_src_not_set(void)
{
MigrateStart *args = migrate_start_new();
g_free(args->opts_target);
args->opts_target = g_strdup("-uuid 22222222-2222-2222-2222-222222222222");
args->hide_stderr = true;
do_test_validate_uuid(args, false);
}
static void test_validate_uuid_dst_not_set(void)
{
MigrateStart *args = migrate_start_new();
g_free(args->opts_source);
args->opts_source = g_strdup("-uuid 11111111-1111-1111-1111-111111111111");
args->hide_stderr = true;
do_test_validate_uuid(args, false);
}
static void test_migrate_auto_converge(void)
{
char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs);
MigrateStart *args = migrate_start_new();
QTestState *from, *to;
int64_t remaining, percentage;
/*
* We want the test to be stable and as fast as possible.
* E.g., with 1Gb/s bandwith migration may pass without throttling,
* so we need to decrease a bandwidth.
*/
const int64_t init_pct = 5, inc_pct = 50, max_pct = 95;
const int64_t max_bandwidth = 400000000; /* ~400Mb/s */
const int64_t downtime_limit = 250; /* 250ms */
/*
* We migrate through unix-socket (> 500Mb/s).
* Thus, expected migration speed ~= bandwidth limit (< 500Mb/s).
* So, we can predict expected_threshold
*/
const int64_t expected_threshold = max_bandwidth * downtime_limit / 1000;
if (test_migrate_start(&from, &to, uri, args)) {
return;
}
migrate_set_capability(from, "auto-converge", true);
migrate_set_parameter_int(from, "cpu-throttle-initial", init_pct);
migrate_set_parameter_int(from, "cpu-throttle-increment", inc_pct);
migrate_set_parameter_int(from, "max-cpu-throttle", max_pct);
/*
* Set the initial parameters so that the migration could not converge
* without throttling.
*/
migrate_set_parameter_int(from, "downtime-limit", 1);
migrate_set_parameter_int(from, "max-bandwidth", 100000000); /* ~100Mb/s */
/* To check remaining size after precopy */
migrate_set_capability(from, "pause-before-switchover", true);
/* Wait for the first serial output from the source */
wait_for_serial("src_serial");
migrate_qmp(from, uri, "{}");
/* Wait for throttling begins */
percentage = 0;
while (percentage == 0) {
percentage = read_migrate_property_int(from, "cpu-throttle-percentage");
usleep(100);
g_assert_false(got_stop);
}
/* The first percentage of throttling should be equal to init_pct */
g_assert_cmpint(percentage, ==, init_pct);
/* Now, when we tested that throttling works, let it converge */
migrate_set_parameter_int(from, "downtime-limit", downtime_limit);
migrate_set_parameter_int(from, "max-bandwidth", max_bandwidth);
/*
* Wait for pre-switchover status to check last throttle percentage
* and remaining. These values will be zeroed later
*/
wait_for_migration_status(from, "pre-switchover", NULL);
/* The final percentage of throttling shouldn't be greater than max_pct */
percentage = read_migrate_property_int(from, "cpu-throttle-percentage");
g_assert_cmpint(percentage, <=, max_pct);
remaining = read_ram_property_int(from, "remaining");
g_assert_cmpint(remaining, <,
(expected_threshold + expected_threshold / 100));
migrate_continue(from, "pre-switchover");
qtest_qmp_eventwait(to, "RESUME");
wait_for_serial("dest_serial");
wait_for_migration_complete(from);
g_free(uri);
test_migrate_end(from, to, true);
}
static void test_multifd_tcp(const char *method)
{
MigrateStart *args = migrate_start_new();
QTestState *from, *to;
QDict *rsp;
char *uri;
if (test_migrate_start(&from, &to, "defer", args)) {
return;
}
/*
* We want to pick a speed slow enough that the test completes
* quickly, but that it doesn't complete precopy even on a slow
* machine, so also set the downtime.
*/
/* 1 ms should make it not converge*/
migrate_set_parameter_int(from, "downtime-limit", 1);
/* 1GB/s */
migrate_set_parameter_int(from, "max-bandwidth", 1000000000);
migrate_set_parameter_int(from, "multifd-channels", 16);
migrate_set_parameter_int(to, "multifd-channels", 16);
migrate_set_parameter_str(from, "multifd-compression", method);
migrate_set_parameter_str(to, "multifd-compression", method);
migrate_set_capability(from, "multifd", "true");
migrate_set_capability(to, "multifd", "true");
/* Start incoming migration from the 1st socket */
rsp = wait_command(to, "{ 'execute': 'migrate-incoming',"
" 'arguments': { 'uri': 'tcp:127.0.0.1:0' }}");
qobject_unref(rsp);
/* Wait for the first serial output from the source */
wait_for_serial("src_serial");
uri = migrate_get_socket_address(to, "socket-address");
migrate_qmp(from, uri, "{}");
wait_for_migration_pass(from);
migrate_set_parameter_int(from, "downtime-limit", CONVERGE_DOWNTIME);
if (!got_stop) {
qtest_qmp_eventwait(from, "STOP");
}
qtest_qmp_eventwait(to, "RESUME");
wait_for_serial("dest_serial");
wait_for_migration_complete(from);
test_migrate_end(from, to, true);
g_free(uri);
}
static void test_multifd_tcp_none(void)
{
test_multifd_tcp("none");
}
static void test_multifd_tcp_zlib(void)
{
test_multifd_tcp("zlib");
}
#ifdef CONFIG_ZSTD
static void test_multifd_tcp_zstd(void)
{
test_multifd_tcp("zstd");
}
#endif
/*
* This test does:
* source target
* migrate_incoming
* migrate
* migrate_cancel
* launch another target
* migrate
*
* And see that it works
*/
static void test_multifd_tcp_cancel(void)
{
MigrateStart *args = migrate_start_new();
QTestState *from, *to, *to2;
QDict *rsp;
char *uri;
args->hide_stderr = true;
if (test_migrate_start(&from, &to, "defer", args)) {
return;
}
/*
* We want to pick a speed slow enough that the test completes
* quickly, but that it doesn't complete precopy even on a slow
* machine, so also set the downtime.
*/
/* 1 ms should make it not converge*/
migrate_set_parameter_int(from, "downtime-limit", 1);
/* 300MB/s */
migrate_set_parameter_int(from, "max-bandwidth", 30000000);
migrate_set_parameter_int(from, "multifd-channels", 16);
migrate_set_parameter_int(to, "multifd-channels", 16);
migrate_set_capability(from, "multifd", "true");
migrate_set_capability(to, "multifd", "true");
/* Start incoming migration from the 1st socket */
rsp = wait_command(to, "{ 'execute': 'migrate-incoming',"
" 'arguments': { 'uri': 'tcp:127.0.0.1:0' }}");
qobject_unref(rsp);
/* Wait for the first serial output from the source */
wait_for_serial("src_serial");
uri = migrate_get_socket_address(to, "socket-address");
migrate_qmp(from, uri, "{}");
wait_for_migration_pass(from);
migrate_cancel(from);
args = migrate_start_new();
args->only_target = true;
if (test_migrate_start(&from, &to2, "defer", args)) {
return;
}
migrate_set_parameter_int(to2, "multifd-channels", 16);
migrate_set_capability(to2, "multifd", "true");
/* Start incoming migration from the 1st socket */
rsp = wait_command(to2, "{ 'execute': 'migrate-incoming',"
" 'arguments': { 'uri': 'tcp:127.0.0.1:0' }}");
qobject_unref(rsp);
g_free(uri);
uri = migrate_get_socket_address(to2, "socket-address");
wait_for_migration_status(from, "cancelled", NULL);
/* 300ms it should converge */
migrate_set_parameter_int(from, "downtime-limit", 300);
/* 1GB/s */
migrate_set_parameter_int(from, "max-bandwidth", 1000000000);
migrate_qmp(from, uri, "{}");
wait_for_migration_pass(from);
if (!got_stop) {
qtest_qmp_eventwait(from, "STOP");
}
qtest_qmp_eventwait(to2, "RESUME");
wait_for_serial("dest_serial");
wait_for_migration_complete(from);
test_migrate_end(from, to2, true);
g_free(uri);
}
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
int main(int argc, char **argv)
{
char template[] = "/tmp/migration-test-XXXXXX";
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
int ret;
g_test_init(&argc, &argv, NULL);
if (!ufd_version_check()) {
return g_test_run();
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
}
/*
* On ppc64, the test only works with kvm-hv, but not with kvm-pr and TCG
* is touchy due to race conditions on dirty bits (especially on PPC for
* some reason)
*/
if (g_str_equal(qtest_get_arch(), "ppc64") &&
(access("/sys/module/kvm_hv", F_OK) ||
access("/dev/kvm", R_OK | W_OK))) {
g_test_message("Skipping test: kvm_hv not available");
return g_test_run();
}
/*
* Similar to ppc64, s390x seems to be touchy with TCG, so disable it
* there until the problems are resolved
*/
if (g_str_equal(qtest_get_arch(), "s390x")) {
#if defined(HOST_S390X)
if (access("/dev/kvm", R_OK | W_OK)) {
g_test_message("Skipping test: kvm not available");
return g_test_run();
}
#else
g_test_message("Skipping test: Need s390x host to work properly");
return g_test_run();
#endif
}
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
tmpfs = mkdtemp(template);
if (!tmpfs) {
g_test_message("mkdtemp on path (%s): %s", template, strerror(errno));
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
}
g_assert(tmpfs);
module_call_init(MODULE_INIT_QOM);
qtest_add_func("/migration/postcopy/unix", test_postcopy);
qtest_add_func("/migration/postcopy/recovery", test_postcopy_recovery);
qtest_add_func("/migration/deprecated", test_deprecated);
qtest_add_func("/migration/bad_dest", test_baddest);
qtest_add_func("/migration/precopy/unix", test_precopy_unix);
qtest_add_func("/migration/precopy/tcp", test_precopy_tcp);
/* qtest_add_func("/migration/ignore_shared", test_ignore_shared); */
qtest_add_func("/migration/xbzrle/unix", test_xbzrle_unix);
qtest_add_func("/migration/fd_proto", test_migrate_fd_proto);
qtest_add_func("/migration/validate_uuid", test_validate_uuid);
qtest_add_func("/migration/validate_uuid_error", test_validate_uuid_error);
qtest_add_func("/migration/validate_uuid_src_not_set",
test_validate_uuid_src_not_set);
qtest_add_func("/migration/validate_uuid_dst_not_set",
test_validate_uuid_dst_not_set);
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
qtest_add_func("/migration/auto_converge", test_migrate_auto_converge);
qtest_add_func("/migration/multifd/tcp/none", test_multifd_tcp_none);
qtest_add_func("/migration/multifd/tcp/cancel", test_multifd_tcp_cancel);
qtest_add_func("/migration/multifd/tcp/zlib", test_multifd_tcp_zlib);
#ifdef CONFIG_ZSTD
qtest_add_func("/migration/multifd/tcp/zstd", test_multifd_tcp_zstd);
#endif
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
ret = g_test_run();
g_assert_cmpint(ret, ==, 0);
ret = rmdir(tmpfs);
if (ret != 0) {
g_test_message("unable to rmdir: path (%s): %s",
test: Postcopy This is a postcopy test (x86 only) that actually runs the guest and checks the memory contents. The test runs from an x86 boot block with the hex embedded in the test; the source for this is: ........... .code16 .org 0x7c00 .file "fill.s" .text .globl start .type start, @function start: # at 0x7c00 ? cli lgdt gdtdesc mov $1,%eax mov %eax,%cr0 # Protected mode enable data32 ljmp $8,$0x7c20 .org 0x7c20 .code32 # A20 enable - not sure I actually need this inb $0x92,%al or $2,%al outb %al, $0x92 # set up DS for the whole of RAM (needed on KVM) mov $16,%eax mov %eax,%ds mov $65,%ax mov $0x3f8,%dx outb %al,%dx # bl keeps a counter so we limit the output speed mov $0, %bl mainloop: # Start from 1MB mov $(1024*1024),%eax innerloop: incb (%eax) add $4096,%eax cmp $(100*1024*1024),%eax jl innerloop inc %bl jnz mainloop mov $66,%ax mov $0x3f8,%dx outb %al,%dx jmp mainloop # GDT magic from old (GPLv2) Grub startup.S .p2align 2 /* force 4-byte alignment */ gdt: .word 0, 0 .byte 0, 0, 0, 0 /* -- code segment -- * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present * type = 32bit code execute/read, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x9A, 0xCF, 0 /* -- data segment -- * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present * type = 32 bit data read/write, DPL = 0 */ .word 0xFFFF, 0 .byte 0, 0x92, 0xCF, 0 gdtdesc: .word 0x27 /* limit */ .long gdt /* addr */ /* I'm a bootable disk */ .org 0x7dfe .byte 0x55 .byte 0xAA ........... and that can be assembled by the following magic: as --32 -march=i486 fill.s -o fill.o objcopy -O binary fill.o fill.boot dd if=fill.boot of=bootsect bs=256 count=2 skip=124 xxd -i bootsect Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1465816605-29488-5-git-send-email-dgilbert@redhat.com Message-Id: <1465816605-29488-5-git-send-email-dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-13 13:16:43 +02:00
tmpfs, strerror(errno));
}
return ret;
}