diff options
| author | Paolo Bonzini <[email protected]> | 2016-08-18 12:19:19 +0200 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2016-08-18 12:19:19 +0200 |
| commit | 2eeb321fd2e24c0910e96e82509a961d1531fa29 (patch) | |
| tree | 800cea75783554f02e9b0254707346d54516546e /virt/kvm/arm/arch_timer.c | |
| parent | c95ba92afb238ac565c68968fc72e38ca8d1b6e8 (diff) | |
| parent | f7f6f2d94f0027242ddfd665289b107a873fde43 (diff) | |
Merge tag 'kvm-arm-for-v4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/ARM Fixes for v4.8-rc3
This tag contains the following fixes on top of v4.8-rc1:
- ITS init issues
- ITS error handling issues
- ITS IRQ leakage fix
- Plug a couple of ITS race conditions
- An erratum workaround for timers
- Some removal of misleading use of errors and comments
- A fix for GICv3 on 32-bit guests
Diffstat (limited to 'virt/kvm/arm/arch_timer.c')
| -rw-r--r-- | virt/kvm/arm/arch_timer.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c index 4fde8c7dfcfe..77e6ccf14901 100644 --- a/virt/kvm/arm/arch_timer.c +++ b/virt/kvm/arm/arch_timer.c @@ -33,6 +33,7 @@ static struct timecounter *timecounter; static struct workqueue_struct *wqueue; static unsigned int host_vtimer_irq; +static u32 host_vtimer_irq_flags; void kvm_timer_vcpu_put(struct kvm_vcpu *vcpu) { @@ -365,7 +366,7 @@ void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu) static void kvm_timer_init_interrupt(void *info) { - enable_percpu_irq(host_vtimer_irq, 0); + enable_percpu_irq(host_vtimer_irq, host_vtimer_irq_flags); } int kvm_arm_timer_set_reg(struct kvm_vcpu *vcpu, u64 regid, u64 value) @@ -432,6 +433,14 @@ int kvm_timer_hyp_init(void) } host_vtimer_irq = info->virtual_irq; + host_vtimer_irq_flags = irq_get_trigger_type(host_vtimer_irq); + if (host_vtimer_irq_flags != IRQF_TRIGGER_HIGH && + host_vtimer_irq_flags != IRQF_TRIGGER_LOW) { + kvm_err("Invalid trigger for IRQ%d, assuming level low\n", + host_vtimer_irq); + host_vtimer_irq_flags = IRQF_TRIGGER_LOW; + } + err = request_percpu_irq(host_vtimer_irq, kvm_arch_timer_handler, "kvm guest timer", kvm_get_running_vcpus()); if (err) { |