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authorXiantao Zhang <xiantao.zhang@intel.com>2008-08-28 09:34:08 +0800
committerAvi Kivity <avi@qumranet.com>2008-10-15 10:15:25 +0200
commit8c4b537da7eceab1246695df21beea10f180d460 (patch)
treebf4ed41aaa1c5920e681b16f04e0ac5ba4b5fda3 /arch
parentfb4616f43148c5b3f3e453a47657572d1bda39ee (diff)
KVM: ia64: Implement kvm_arch_vcpu_ioctl_{set,get}_mpstate
Two ioctl arch functions are added to set vcpu's smp state. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/ia64/kvm/kvm-ia64.c37
1 files changed, 35 insertions, 2 deletions
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index cd0d1a7284b..7ad759e3429 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -179,6 +179,7 @@ int kvm_dev_ioctl_check_extension(long ext)
switch (ext) {
case KVM_CAP_IRQCHIP:
case KVM_CAP_USER_MEMORY:
+ case KVM_CAP_MP_STATE:
r = 1;
break;
@@ -1789,11 +1790,43 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
struct kvm_mp_state *mp_state)
{
- return -EINVAL;
+ vcpu_load(vcpu);
+ mp_state->mp_state = vcpu->arch.mp_state;
+ vcpu_put(vcpu);
+ return 0;
+}
+
+static int vcpu_reset(struct kvm_vcpu *vcpu)
+{
+ int r;
+ long psr;
+ local_irq_save(psr);
+ r = kvm_insert_vmm_mapping(vcpu);
+ if (r)
+ goto fail;
+
+ vcpu->arch.launched = 0;
+ kvm_arch_vcpu_uninit(vcpu);
+ r = kvm_arch_vcpu_init(vcpu);
+ if (r)
+ goto fail;
+
+ kvm_purge_vmm_mapping(vcpu);
+ r = 0;
+fail:
+ local_irq_restore(psr);
+ return r;
}
int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
struct kvm_mp_state *mp_state)
{
- return -EINVAL;
+ int r = 0;
+
+ vcpu_load(vcpu);
+ vcpu->arch.mp_state = mp_state->mp_state;
+ if (vcpu->arch.mp_state == KVM_MP_STATE_UNINITIALIZED)
+ r = vcpu_reset(vcpu);
+ vcpu_put(vcpu);
+ return r;
}