kvm: x86: Save/restore KVM-specific CPU states

Save and restore all so far neglected KVM-specific CPU states. Handling
the TSC stabilizes migration in KVM mode. The interrupt_bitmap and
mp_state are currently unused, but will become relevant for in-kernel
irqchip support. By including proper saving/restoring already, we avoid
having to increment CPU_SAVE_VERSION later on once again.

v2:
 - initialize mp_state runnable (for the boot CPU)

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/kvm.h b/kvm.h
index d0738f5fa0..560aef3872 100644
--- a/kvm.h
+++ b/kvm.h
@@ -72,6 +72,9 @@ int kvm_vm_ioctl(KVMState *s, int type, ...);
 
 int kvm_vcpu_ioctl(CPUState *env, int type, ...);
 
+int kvm_get_mp_state(CPUState *env);
+int kvm_put_mp_state(CPUState *env);
+
 /* Arch specific hooks */
 
 int kvm_arch_post_run(CPUState *env, struct kvm_run *run);