diff options
| author | Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> | 2013-08-26 14:18:35 +0530 |
|---|---|---|
| committer | Gleb Natapov <gleb@redhat.com> | 2013-08-26 12:47:09 +0300 |
| commit | 24d2166beb2f0be7dd29ab6a0841c27bd669eae9 (patch) | |
| tree | ce8abff1c77b369c82507d72cbe8861e57e03162 /arch/x86/kvm | |
| parent | 6aef266c6e17b798a1740cf70cd34f90664740b3 (diff) | |
| download | linux-24d2166beb2f0be7dd29ab6a0841c27bd669eae9.tar.bz2 | |
kvm hypervisor: Simplify kvm_for_each_vcpu with kvm_irq_delivery_to_apic
Note that we are using APIC_DM_REMRD which has reserved usage.
In future if APIC_DM_REMRD usage is standardized, then we should
find some other way or go back to old method.
Suggested-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Acked-by: Gleb Natapov <gleb@redhat.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
| -rw-r--r-- | arch/x86/kvm/lapic.c | 5 | ||||
| -rw-r--r-- | arch/x86/kvm/x86.c | 25 |
2 files changed, 10 insertions, 20 deletions
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index c98f05442325..5439117d5c4c 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -689,7 +689,10 @@ static int __apic_accept_irq(struct kvm_lapic *apic, int delivery_mode, break; case APIC_DM_REMRD: - apic_debug("Ignoring delivery mode 3\n"); + result = 1; + vcpu->arch.pv.pv_unhalted = 1; + kvm_make_request(KVM_REQ_EVENT, vcpu); + kvm_vcpu_kick(vcpu); break; case APIC_DM_SMI: diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index c53741764492..cb276e976203 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5595,27 +5595,14 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu) */ static void kvm_pv_kick_cpu_op(struct kvm *kvm, unsigned long flags, int apicid) { - struct kvm_vcpu *vcpu = NULL; - int i; + struct kvm_lapic_irq lapic_irq; - kvm_for_each_vcpu(i, vcpu, kvm) { - if (!kvm_apic_present(vcpu)) - continue; + lapic_irq.shorthand = 0; + lapic_irq.dest_mode = 0; + lapic_irq.dest_id = apicid; - if (kvm_apic_match_dest(vcpu, 0, 0, apicid, 0)) - break; - } - if (vcpu) { - /* - * Setting unhalt flag here can result in spurious runnable - * state when unhalt reset does not happen in vcpu_block. - * But that is harmless since that should soon result in halt. - */ - vcpu->arch.pv.pv_unhalted = true; - /* We need everybody see unhalt before vcpu unblocks */ - smp_wmb(); - kvm_vcpu_kick(vcpu); - } + lapic_irq.delivery_mode = APIC_DM_REMRD; + kvm_irq_delivery_to_apic(kvm, 0, &lapic_irq, NULL); } int kvm_emulate_hypercall(struct kvm_vcpu *vcpu) |