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pvpanic: implement crashloaded event handling

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Handle bit 1 write, then post event to monitor.

Suggested by Paolo, declear a new event, using GUEST_PANICKED could
cause upper layers to react by shutting down or rebooting the guest.

In advance for extention, add GuestPanicInformation in event message.

Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
Message-Id: <20200114023102.612548-3-pizhenwei@bytedance.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
zhenwei pi 2020-01-14 10:31:02 +08:00 • committed by Paolo Bonzini
parent 600d7b47e8
commit 7dc58deea7
5 changed files with 52 additions and 12 deletions
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11
hw/misc/pvpanic.c
View file

@ -21,11 +21,13 @@
#include "hw/qdev-properties.h"
#include "hw/misc/pvpanic.h"
/* The bit of supported pv event */
/* The bit of supported pv event, TODO: include uapi header and remove this */
#define PVPANIC_F_PANICKED 0
#define PVPANIC_F_CRASHLOADED 1
/* The pv event value */
#define PVPANIC_PANICKED (1 << PVPANIC_F_PANICKED)
#define PVPANIC_CRASHLOADED (1 << PVPANIC_F_CRASHLOADED)
#define ISA_PVPANIC_DEVICE(obj) \
OBJECT_CHECK(PVPanicState, (obj), TYPE_PVPANIC)
@ -34,7 +36,7 @@ static void handle_event(int event)
{
static bool logged;
if (event & ~PVPANIC_PANICKED && !logged) {
if (event & ~(PVPANIC_PANICKED | PVPANIC_CRASHLOADED) && !logged) {
qemu_log_mask(LOG_GUEST_ERROR, "pvpanic: unknown event %#x.\n", event);
logged = true;
}
@ -43,6 +45,11 @@ static void handle_event(int event)
qemu_system_guest_panicked(NULL);
return;
}
if (event & PVPANIC_CRASHLOADED) {
qemu_system_guest_crashloaded(NULL);
return;
}
}
#include "hw/isa/isa.h"