| From | Raghavendra K T <> | Date | Sun, 02 Jun 2013 00:55:30 +0530 | Subject | [PATCH RFC V9 14/19] kvm : Fold pv_unhalt flag into GET_MP_STATE ioctl to aid migration |
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kvm : Fold pv_unhalt flag into GET_MP_STATE ioctl to aid migration
From: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
During migration, any vcpu that got kicked but did not become runnable (still in halted state) should be runnable after migration.
Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> --- arch/x86/kvm/x86.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index f8bea30..92a9932 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6243,7 +6243,12 @@ int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, struct kvm_mp_state *mp_state) { kvm_apic_accept_events(vcpu); - mp_state->mp_state = vcpu->arch.mp_state; + if (vcpu->arch.mp_state == KVM_MP_STATE_HALTED && + vcpu->arch.pv.pv_unhalted) + mp_state->mp_state = KVM_MP_STATE_RUNNABLE; + else + mp_state->mp_state = vcpu->arch.mp_state; + return 0; }
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