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cpu: Add crash_occurred flag into CPUState

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CPUState::crash_occurred field inside CPUState marks
that guest crash occurred. This value is added into
cpu common migration subsection.

Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Andreas Färber <afaerber@suse.de>
Message-Id: <1435924905-8926-12-git-send-email-den@openvz.org>
[Document the new field. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Andrey Smetanin 2015-07-03 15:01:44 +03:00 committed by Paolo Bonzini
parent 73aa529a48
commit bac05aa9a7
4 changed files with 25 additions and 0 deletions
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19
exec.c
View File

@ -478,6 +478,24 @@ static const VMStateDescription vmstate_cpu_common_exception_index = {
}
};
static bool cpu_common_crash_occurred_needed(void *opaque)
{
CPUState *cpu = opaque;
return cpu->crash_occurred;
}
static const VMStateDescription vmstate_cpu_common_crash_occurred = {
.name = "cpu_common/crash_occurred",
.version_id = 1,
.minimum_version_id = 1,
.needed = cpu_common_crash_occurred_needed,
.fields = (VMStateField[]) {
VMSTATE_BOOL(crash_occurred, CPUState),
VMSTATE_END_OF_LIST()
}
};
const VMStateDescription vmstate_cpu_common = {
.name = "cpu_common",
.version_id = 1,
@ -491,6 +509,7 @@ const VMStateDescription vmstate_cpu_common = {
},
.subsections = (const VMStateDescription*[]) {
&vmstate_cpu_common_exception_index,
&vmstate_cpu_common_crash_occurred,
NULL
}
};

2
include/qom/cpu.h
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@ -223,6 +223,7 @@ struct kvm_run;
* @halted: Nonzero if the CPU is in suspended state.
* @stop: Indicates a pending stop request.
* @stopped: Indicates the CPU has been artificially stopped.
* @crash_occurred: Indicates the OS reported a crash (panic) for this CPU
* @tcg_exit_req: Set to force TCG to stop executing linked TBs for this
* CPU and return to its top level loop.
* @singlestep_enabled: Flags for single-stepping.
@ -269,6 +270,7 @@ struct CPUState {
bool created;
bool stop;
bool stopped;
bool crash_occurred;
bool exit_request;
uint32_t interrupt_request;
int singlestep_enabled;

1
qom/cpu.c
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@ -251,6 +251,7 @@ static void cpu_common_reset(CPUState *cpu)
cpu->icount_decr.u32 = 0;
cpu->can_do_io = 1;
cpu->exception_index = -1;
cpu->crash_occurred = false;
memset(cpu->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof(void *));
}

3
vl.c
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@ -1747,6 +1747,9 @@ void qemu_system_reset(bool report)
void qemu_system_guest_panicked(void)
{
if (current_cpu) {
current_cpu->crash_occurred = true;
}
qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE, &error_abort);
vm_stop(RUN_STATE_GUEST_PANICKED);
}