From 5a6e8ba64fb236068fef0f2ce26fe6579cf6a75c Mon Sep 17 00:00:00 2001 From: Pavel Dovgalyuk Date: Mon, 22 Sep 2014 16:14:24 +0400 Subject: kvmvapic: fix migration when VM paused and when not running Windows This patch fixes migration by extending do_vapic_enable function. This function called vapic_enable which read cpu number from the guest memory. When cpu number could not be read, vapic was not enabled while loading the VM state. This patch adds required code for cpu_number=0 to do_vapic_enable function, because it is called only when cpu_number=0. Signed-off-by: Pavel Dovgalyuk Signed-off-by: Paolo Bonzini --- hw/i386/kvmvapic.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'hw/i386') diff --git a/hw/i386/kvmvapic.c b/hw/i386/kvmvapic.c index 2cca7a44f4..2dc362b88f 100644 --- a/hw/i386/kvmvapic.c +++ b/hw/i386/kvmvapic.c @@ -732,7 +732,11 @@ static void do_vapic_enable(void *data) VAPICROMState *s = data; X86CPU *cpu = X86_CPU(first_cpu); - vapic_enable(s, cpu); + static const uint8_t enabled = 1; + cpu_physical_memory_write(s->vapic_paddr + offsetof(VAPICState, enabled), + &enabled, sizeof(enabled)); + apic_enable_vapic(cpu->apic_state, s->vapic_paddr); + s->state = VAPIC_ACTIVE; } static void kvmvapic_vm_state_change(void *opaque, int running, @@ -777,7 +781,10 @@ static int vapic_post_load(void *opaque, int version_id) } } - s->vmsentry = qemu_add_vm_change_state_handler(kvmvapic_vm_state_change, s); + if (!s->vmsentry) { + s->vmsentry = + qemu_add_vm_change_state_handler(kvmvapic_vm_state_change, s); + } return 0; } -- cgit v1.2.3