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kvm: Add missing bits to support live migration

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This patch adds the missing hooks to allow live migration in KVM mode.
It adds proper synchronization before/after saving/restoring the VCPU
states (note: PPC is untested), hooks into
cpu_physical_memory_set_dirty_tracking() to enable dirty memory logging
at KVM level, and synchronizes that drity log into QEMU's view before
running ram_live_save().

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Jan Kiszka 2009-05-02 00:22:51 +02:00 • committed by Anthony Liguori
parent 151f7749f2
commit b0a46a333a
4 changed files with 21 additions and 1 deletions
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5
target-ppc/machine.c
View file

@ -1,11 +1,14 @@
#include "hw/hw.h"
#include "hw/boards.h"
#include "kvm.h"
void cpu_save(QEMUFile *f, void *opaque)
{
CPUState *env = (CPUState *)opaque;
unsigned int i, j;
cpu_synchronize_state(env, 0);
for (i = 0; i < 32; i++)
qemu_put_betls(f, &env->gpr[i]);
#if !defined(TARGET_PPC64)
@ -174,5 +177,7 @@ int cpu_load(QEMUFile *f, void *opaque, int version_id)
qemu_get_sbe32s(f, &env->mmu_idx);
qemu_get_sbe32s(f, &env->power_mode);
cpu_synchronize_state(env, 1);
return 0;
}