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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 /virt
parenta45352908b88d383bc40e1e4d1a6cc5bbcefc895 (diff)
downloadlinux-2.6.38-lt-ux500-62d9f0dbc92d7e398fde53fc6021338393522e68.tar.gz
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 'virt')
-rw-r--r--virt/kvm/kvm_main.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 47cbc6e3faf..09984557490 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -979,6 +979,30 @@ out_free2:
r = 0;
break;
}
+ case KVM_GET_MP_STATE: {
+ struct kvm_mp_state mp_state;
+
+ r = kvm_arch_vcpu_ioctl_get_mpstate(vcpu, &mp_state);
+ if (r)
+ goto out;
+ r = -EFAULT;
+ if (copy_to_user(argp, &mp_state, sizeof mp_state))
+ goto out;
+ r = 0;
+ break;
+ }
+ case KVM_SET_MP_STATE: {
+ struct kvm_mp_state mp_state;
+
+ r = -EFAULT;
+ if (copy_from_user(&mp_state, argp, sizeof mp_state))
+ goto out;
+ r = kvm_arch_vcpu_ioctl_set_mpstate(vcpu, &mp_state);
+ if (r)
+ goto out;
+ r = 0;
+ break;
+ }
case KVM_TRANSLATE: {
struct kvm_translation tr;