Commit Graph

5 Commits

Author SHA1 Message Date
lvivier@redhat.com aaf89c8a49 test: port postcopy test to ppc64
As userfaultfd syscall is available on powerpc, migration
postcopy can be used.

This patch adds the support needed to test this on powerpc,
instead of using a bootsector to run code to modify memory,
we use a FORTH script in "boot-command" property.

As spapr machine doesn't support "-prom-env" argument
(the nvram is initialized by SLOF and not by QEMU),
"boot-command" is provided to SLOF via a file mapped nvram
(with "-drive file=...,if=pflash")

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-29 12:02:31 +10:00
Markus Armbruster a9c94277f0 Use #include "..." for our own headers, <...> for others
Tracked down with an ugly, brittle and probably buggy Perl script.

Also move includes converted to <...> up so they get included before
ours where that's obviously okay.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Tested-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-07-12 16:19:16 +02:00
Paolo Bonzini e9abfcb57f clean-includes: run it once more
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-06-16 18:39:03 +02:00
Paolo Bonzini 02d0e09503 os-posix: include sys/mman.h
qemu/osdep.h checks whether MAP_ANONYMOUS is defined, but this check
is bogus without a previous inclusion of sys/mman.h.  Include it in
sysemu/os-posix.h and remove it from everywhere else.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-06-16 18:39:03 +02:00
Dr. David Alan Gilbert ea0c6d6239 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>
2016-06-16 09:50:07 +05:30