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| author | Marcelo Tosatti | 2008-04-11 18:24:45 +0200 |
|---|---|---|
| committer | Avi Kivity | 2008-04-27 17:21:16 +0200 |
| commit | 62d9f0dbc92d7e398fde53fc6021338393522e68 (patch) | |
| tree | 028e62807ead3db11f15694323743b90c8211ef8 /arch/x86/kvm/x86.c | |
| parent | KVM: Rename VCPU_MP_STATE_* to KVM_MP_STATE_* (diff) | |
| download | kernel-qcow2-linux-62d9f0dbc92d7e398fde53fc6021338393522e68.tar.gz kernel-qcow2-linux-62d9f0dbc92d7e398fde53fc6021338393522e68.tar.xz kernel-qcow2-linux-62d9f0dbc92d7e398fde53fc6021338393522e68.zip | |
KVM: add ioctls to save/store mpstate
So userspace can save/restore the mpstate during migration.
[avi: export the #define constants describing the value]
[christian: add s390 stubs]
[avi: ditto for ia64]
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index b364d192896c..5c3c9d38c780 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -817,6 +817,7 @@ int kvm_dev_ioctl_check_extension(long ext) case KVM_CAP_CLOCKSOURCE: case KVM_CAP_PIT: case KVM_CAP_NOP_IO_DELAY: + case KVM_CAP_MP_STATE: r = 1; break; case KVM_CAP_VAPIC: @@ -3083,6 +3084,24 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, return 0; } +int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, + struct kvm_mp_state *mp_state) +{ + vcpu_load(vcpu); + mp_state->mp_state = vcpu->arch.mp_state; + vcpu_put(vcpu); + return 0; +} + +int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, + struct kvm_mp_state *mp_state) +{ + vcpu_load(vcpu); + vcpu->arch.mp_state = mp_state->mp_state; + vcpu_put(vcpu); + return 0; +} + static void set_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg) { |