redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

KVM: ia64: Implement kvm_arch_vcpu_ioctl_{set,get}_mpstate

Browse source 
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>
This commit is contained in:
Xiantao Zhang 2008-08-28 09:34:08 +08:00 committed by Avi Kivity
parent fb4616f431
commit 8c4b537da7
1 changed files with 35 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

37
arch/ia64/kvm/kvm-ia64.c
View file

@ -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;
}