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machine: query dump-guest-core machine property

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Running
    qemu-bin ... -machine pc,dump-guest-core=on
leads to crash:
    x86_64-softmmu/qemu-system-x86_64 -machine pc,dump-guest-core=on
    qemu-system-x86_64: qemu/util/qemu-option.c:387: qemu_opt_get_bool_helper:
    Assertion `opt->desc && opt->desc->type == QEMU_OPT_BOOL' failed.  Aborted
    (core dumped)

This happens because the commit e79d5a6 ("machine: remove qemu_machine_opts
global list") removed the global option descriptions and moved them to
MachineState's QOM properties.

Fix this by querying machine properties through designated wrappers.

Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Marcel Apfelbaum 2015-02-04 17:43:54 +02:00 committed by Michael S. Tsirkin
parent 66bd56694b
commit 47c8ca533e
3 changed files with 9 additions and 2 deletions
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4
exec.c
View File

@ -26,6 +26,7 @@
#include "cpu.h"
#include "tcg.h"
#include "hw/hw.h"
#include "hw/boards.h"
#include "hw/qdev.h"
#include "qemu/osdep.h"
#include "sysemu/kvm.h"
@ -1250,8 +1251,7 @@ static void qemu_ram_setup_dump(void *addr, ram_addr_t size)
int ret;
/* Use MADV_DONTDUMP, if user doesn't want the guest memory in the core */
if (!qemu_opt_get_bool(qemu_get_machine_opts(),
"dump-guest-core", true)) {
if (!machine_dump_guest_core(current_machine)) {
ret = qemu_madvise(addr, size, QEMU_MADV_DONTDUMP);
if (ret) {
perror("qemu_madvise");

6
hw/core/machine.c
View File

@ -285,6 +285,7 @@ static void machine_initfn(Object *obj)
ms->kernel_irqchip_allowed = true;
ms->kvm_shadow_mem = -1;
ms->dump_guest_core = true;
object_property_add_str(obj, "accel",
machine_get_accel, machine_set_accel, NULL);
@ -425,6 +426,11 @@ int machine_phandle_start(MachineState *machine)
return machine->phandle_start;
}
bool machine_dump_guest_core(MachineState *machine)
{
return machine->dump_guest_core;
}
static const TypeInfo machine_info = {
.name = TYPE_MACHINE,
.parent = TYPE_OBJECT,

1
include/hw/boards.h
View File

@ -73,6 +73,7 @@ bool machine_kernel_irqchip_allowed(MachineState *machine);
bool machine_kernel_irqchip_required(MachineState *machine);
int machine_kvm_shadow_mem(MachineState *machine);
int machine_phandle_start(MachineState *machine);
bool machine_dump_guest_core(MachineState *machine);
/**
* MachineClass: