From f8d926e9cd96e52ebcfd9ffdeab83c0d5e6b9622 Mon Sep 17 00:00:00 2001 From: Jan Kiszka Date: Sat, 2 May 2009 02:18:38 +0200 Subject: 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 Signed-off-by: Anthony Liguori --- kvm-all.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'kvm-all.c') diff --git a/kvm-all.c b/kvm-all.c index c9f09c7e18..c89e3b1cfe 100644 --- a/kvm-all.c +++ b/kvm-all.c @@ -181,6 +181,26 @@ err: return ret; } +int kvm_put_mp_state(CPUState *env) +{ + struct kvm_mp_state mp_state = { .mp_state = env->mp_state }; + + return kvm_vcpu_ioctl(env, KVM_SET_MP_STATE, &mp_state); +} + +int kvm_get_mp_state(CPUState *env) +{ + struct kvm_mp_state mp_state; + int ret; + + ret = kvm_vcpu_ioctl(env, KVM_GET_MP_STATE, &mp_state); + if (ret < 0) { + return ret; + } + env->mp_state = mp_state.mp_state; + return 0; +} + int kvm_sync_vcpus(void) { CPUState *env; -- cgit v1.2.3