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authorMarcelo Tosatti <mtosatti@redhat.com>2008-04-11 13:24:45 -0300
committerAvi Kivity <avi@qumranet.com>2008-04-27 18:21:16 +0300
commit62d9f0dbc92d7e398fde53fc6021338393522e68 (patch)
tree028e62807ead3db11f15694323743b90c8211ef8 /arch/x86/kvm
parenta45352908b88d383bc40e1e4d1a6cc5bbcefc895 (diff)
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')
-rw-r--r--arch/x86/kvm/x86.c19
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)
{