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Commit 8c4b537d authored by Xiantao Zhang's avatar Xiantao Zhang Committed by Avi Kivity
Browse files

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: default avatarXiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent fb4616f4

arch/ia64/kvm/kvm-ia64.c

+35 −2
Original line number Diff line number Diff line
@@ -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;

}