summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--qemu-kvm-x86.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/qemu-kvm-x86.c b/qemu-kvm-x86.c
index aa123defb..fb70edeb5 100644
--- a/qemu-kvm-x86.c
+++ b/qemu-kvm-x86.c
@@ -767,6 +767,37 @@ int kvm_qemu_destroy_memory_alias(uint64_t phys_start)
return kvm_destroy_memory_alias(kvm_context, phys_start);
}
+#ifdef KVM_CAP_ADJUST_CLOCK
+static struct kvm_clock_data kvmclock_data;
+
+static void kvmclock_pre_save(void *opaque)
+{
+ struct kvm_clock_data *cl = opaque;
+
+ kvm_vm_ioctl(kvm_state, KVM_GET_CLOCK, cl);
+}
+
+static int kvmclock_post_load(void *opaque, int version_id)
+{
+ struct kvm_clock_data *cl = opaque;
+
+ return kvm_vm_ioctl(kvm_state, KVM_SET_CLOCK, cl);
+}
+
+static const VMStateDescription vmstate_kvmclock= {
+ .name = "kvmclock",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .pre_save = kvmclock_pre_save,
+ .post_load = kvmclock_post_load,
+ .fields = (VMStateField []) {
+ VMSTATE_U64(clock, struct kvm_clock_data),
+ VMSTATE_END_OF_LIST()
+ }
+};
+#endif
+
int kvm_arch_qemu_create_context(void)
{
int i;
@@ -788,6 +819,10 @@ int kvm_arch_qemu_create_context(void)
kvm_has_vm_hsave_pa = 1;
}
+#ifdef KVM_CAP_ADJUST_CLOCK
+ if (kvm_check_extension(kvm_state, KVM_CAP_ADJUST_CLOCK))
+ vmstate_register(0, &vmstate_kvmclock, &kvmclock_data);
+#endif
return 0;
}