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Date: Sun, 28 Sep 2008 18:44:38 +0300 From: Avi Kivity <avi@...hat.com> To: linux-kernel@...r.kernel.org Cc: kvm@...r.kernel.org, Xiantao Zhang <xiantao.zhang@...el.com> Subject: [PATCH 02/25] KVM: ia64: Implement kvm_arch_vcpu_ioctl_{set,get}_mpstate From: Xiantao Zhang <xiantao.zhang@...el.com> Two ioctl arch functions are added to set vcpu's smp state. Signed-off-by: Xiantao Zhang <xiantao.zhang@...el.com> Signed-off-by: Avi Kivity <avi@...ranet.com> --- 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 cd0d1a7..7ad759e 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; } -- 1.6.0.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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