diff options
| author | Xiantao Zhang <xiantao.zhang@intel.com> | 2008-08-28 09:34:08 +0800 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-10-15 10:15:25 +0200 |
| commit | 8c4b537da7eceab1246695df21beea10f180d460 (patch) | |
| tree | bf4ed41aaa1c5920e681b16f04e0ac5ba4b5fda3 /arch/ia64 | |
| parent | fb4616f43148c5b3f3e453a47657572d1bda39ee (diff) | |
| download | linux-8c4b537da7eceab1246695df21beea10f180d460.tar.bz2 | |
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/ia64')
| -rw-r--r-- | arch/ia64/kvm/kvm-ia64.c | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index cd0d1a7284b7..7ad759e34295 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; } |