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author | Jan Kiszka <jan.kiszka@siemens.com> | 2009-05-02 02:18:38 +0200 |
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committer | Anthony Liguori <aliguori@us.ibm.com> | 2009-05-22 10:50:34 -0500 |
commit | f8d926e9cd96e52ebcfd9ffdeab83c0d5e6b9622 (patch) | |
tree | 510d530bbec3c739cc23fcc248fe188738fd0b28 /kvm-all.c | |
parent | d33a1810d7f558dd1d486bc84f1cf8f96c982e2d (diff) | |
download | qemu-f8d926e9cd96e52ebcfd9ffdeab83c0d5e6b9622.tar.gz qemu-f8d926e9cd96e52ebcfd9ffdeab83c0d5e6b9622.tar.bz2 qemu-f8d926e9cd96e52ebcfd9ffdeab83c0d5e6b9622.zip |
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>
Diffstat (limited to 'kvm-all.c')
-rw-r--r-- | kvm-all.c | 20 |
1 files changed, 20 insertions, 0 deletions
@@ -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; |