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authorGleb Natapov <gleb@redhat.com>2013-06-27 09:50:33 +0300
committerGleb Natapov <gleb@redhat.com>2013-06-27 14:20:54 +0300
commit96f7edf9a54ca834f030ddf30f91750b3d737a03 (patch)
treee5761ffd63f8a4c8a125953073cf0f44d09707e7 /virt
parent24f7bb52e952912b6a936ebcdc4e744b03e9e5cf (diff)
parent8bd4ffd6b3a98f00267051dc095076ea2ff06ea8 (diff)
downloadlinux-96f7edf9a54ca834f030ddf30f91750b3d737a03.tar.gz
Merge git://git.linaro.org/people/cdall/linux-kvm-arm.git tags/kvm-arm-3.11 into queue
KVM/ARM pull request for 3.11 merge window * tag 'kvm-arm-3.11' of git://git.linaro.org/people/cdall/linux-kvm-arm.git: ARM: kvm: don't include drivers/virtio/Kconfig Update MAINTAINERS: KVM/ARM work now funded by Linaro arm/kvm: Cleanup KVM_ARM_MAX_VCPUS logic ARM: KVM: clear exclusive monitor on all exception returns ARM: KVM: add missing dsb before invalidating Stage-2 TLBs ARM: KVM: perform save/restore of PAR ARM: KVM: get rid of S2_PGD_SIZE ARM: KVM: don't special case PC when doing an MMIO ARM: KVM: use phys_addr_t instead of unsigned long long for HYP PGDs ARM: KVM: remove dead prototype for __kvm_tlb_flush_vmid ARM: KVM: Don't handle PSCI calls via SMC ARM: KVM: Allow host virt timer irq to be different from guest timer virt irq
Diffstat (limited to 'virt')
-rw-r--r--virt/kvm/arm/arch_timer.c29
1 files changed, 20 insertions, 9 deletions
diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c
index 2d00b292578..af4583e2c18 100644
--- a/virt/kvm/arm/arch_timer.c
+++ b/virt/kvm/arm/arch_timer.c
@@ -30,9 +30,7 @@
static struct timecounter *timecounter;
static struct workqueue_struct *wqueue;
-static struct kvm_irq_level timer_irq = {
- .level = 1,
-};
+static unsigned int host_vtimer_irq;
static cycle_t kvm_phys_timer_read(void)
{
@@ -67,8 +65,8 @@ static void kvm_timer_inject_irq(struct kvm_vcpu *vcpu)
timer->cntv_ctl |= ARCH_TIMER_CTRL_IT_MASK;
kvm_vgic_inject_irq(vcpu->kvm, vcpu->vcpu_id,
- vcpu->arch.timer_cpu.irq->irq,
- vcpu->arch.timer_cpu.irq->level);
+ timer->irq->irq,
+ timer->irq->level);
}
static irqreturn_t kvm_arch_timer_handler(int irq, void *dev_id)
@@ -156,6 +154,20 @@ void kvm_timer_sync_hwstate(struct kvm_vcpu *vcpu)
timer_arm(timer, ns);
}
+void kvm_timer_vcpu_reset(struct kvm_vcpu *vcpu,
+ const struct kvm_irq_level *irq)
+{
+ struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu;
+
+ /*
+ * The vcpu timer irq number cannot be determined in
+ * kvm_timer_vcpu_init() because it is called much before
+ * kvm_vcpu_set_target(). To handle this, we determine
+ * vcpu timer irq number when the vcpu is reset.
+ */
+ timer->irq = irq;
+}
+
void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu)
{
struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu;
@@ -163,12 +175,11 @@ void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu)
INIT_WORK(&timer->expired, kvm_timer_inject_irq_work);
hrtimer_init(&timer->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
timer->timer.function = kvm_timer_expire;
- timer->irq = &timer_irq;
}
static void kvm_timer_init_interrupt(void *info)
{
- enable_percpu_irq(timer_irq.irq, 0);
+ enable_percpu_irq(host_vtimer_irq, 0);
}
@@ -182,7 +193,7 @@ static int kvm_timer_cpu_notify(struct notifier_block *self,
break;
case CPU_DYING:
case CPU_DYING_FROZEN:
- disable_percpu_irq(timer_irq.irq);
+ disable_percpu_irq(host_vtimer_irq);
break;
}
@@ -229,7 +240,7 @@ int kvm_timer_hyp_init(void)
goto out;
}
- timer_irq.irq = ppi;
+ host_vtimer_irq = ppi;
err = register_cpu_notifier(&kvm_timer_cpu_nb);
if (err) {