From: Andrew Jones Date: Sun, 4 Jun 2017 12:44:01 +0000 (+0200) Subject: KVM: arm/arm64: timer: remove request-less vcpu kick X-Git-Tag: v4.14-rc1~570^2~9^2~42 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1b6502e5bc5ef16179bcd812dfa43d8bbb5689d4;p=platform%2Fkernel%2Flinux-rpi.git KVM: arm/arm64: timer: remove request-less vcpu kick The timer work is only scheduled for a VCPU when that VCPU is blocked. This means we only need to wake it up, not kick (IPI) it. While calling kvm_vcpu_kick() would just do the wake up, and not kick, anyway, let's change this to avoid request-less vcpu kicks, as they're generally not a good idea (see "Request-less VCPU Kicks" in Documentation/virtual/kvm/vcpu-requests.rst) Signed-off-by: Andrew Jones Reviewed-by: Christoffer Dall Signed-off-by: Christoffer Dall --- diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c index 5976609..7933b1f 100644 --- a/virt/kvm/arm/arch_timer.c +++ b/virt/kvm/arm/arch_timer.c @@ -95,7 +95,7 @@ static void kvm_timer_inject_irq_work(struct work_struct *work) * If the vcpu is blocked we want to wake it up so that it will see * the timer has expired when entering the guest. */ - kvm_vcpu_kick(vcpu); + kvm_vcpu_wake_up(vcpu); } static u64 kvm_timer_compute_delta(struct arch_timer_context *timer_ctx)