From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoffer Dall Subject: [PATCH v3 08/20] KVM: arm/arm64: Rename soft timer to bg_timer Date: Sat, 23 Sep 2017 02:41:55 +0200 Message-ID: <20170923004207.22356-9-cdall@linaro.org> References: <20170923004207.22356-1-cdall@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: Marc Zyngier , Catalin Marinas , Will Deacon , kvm@vger.kernel.org, Christoffer Dall To: kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org Return-path: In-Reply-To: <20170923004207.22356-1-cdall@linaro.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu List-Id: kvm.vger.kernel.org As we are about to introduce a separate hrtimer for the physical timer, call this timer bg_timer, because we refer to this timer as the background timer in the code and comments elsewhere. Signed-off-by: Christoffer Dall --- include/kvm/arm_arch_timer.h | 3 +-- virt/kvm/arm/arch_timer.c | 22 +++++++++++----------- 2 files changed, 12 insertions(+), 13 deletions(-) diff --git a/include/kvm/arm_arch_timer.h b/include/kvm/arm_arch_timer.h index f0053f8..dcbb2e1 100644 --- a/include/kvm/arm_arch_timer.h +++ b/include/kvm/arm_arch_timer.h @@ -43,8 +43,7 @@ struct arch_timer_cpu { struct arch_timer_context ptimer; /* Background timer used when the guest is not running */ - struct hrtimer timer; - + struct hrtimer bg_timer; /* Work queued with the above timer expires */ struct work_struct expired; diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c index 871d8ae..c2e8326 100644 --- a/virt/kvm/arm/arch_timer.c +++ b/virt/kvm/arm/arch_timer.c @@ -56,7 +56,7 @@ u64 kvm_phys_timer_read(void) return timecounter->cc->read(timecounter->cc); } -static bool soft_timer_is_armed(struct arch_timer_cpu *timer) +static bool bg_timer_is_armed(struct arch_timer_cpu *timer) { return timer->armed; } @@ -154,13 +154,13 @@ static u64 kvm_timer_earliest_exp(struct kvm_vcpu *vcpu) return min(min_virt, min_phys); } -static enum hrtimer_restart kvm_timer_expire(struct hrtimer *hrt) +static enum hrtimer_restart kvm_bg_timer_expire(struct hrtimer *hrt) { struct arch_timer_cpu *timer; struct kvm_vcpu *vcpu; u64 ns; - timer = container_of(hrt, struct arch_timer_cpu, timer); + timer = container_of(hrt, struct arch_timer_cpu, bg_timer); vcpu = container_of(timer, struct kvm_vcpu, arch.timer_cpu); /* @@ -267,7 +267,7 @@ static void kvm_timer_emulate(struct kvm_vcpu *vcpu, return; /* The timer has not yet expired, schedule a background timer */ - soft_timer_start(&timer->timer, kvm_timer_compute_delta(timer_ctx)); + soft_timer_start(&timer->bg_timer, kvm_timer_compute_delta(timer_ctx)); } /* @@ -281,7 +281,7 @@ void kvm_timer_schedule(struct kvm_vcpu *vcpu) struct arch_timer_context *vtimer = vcpu_vtimer(vcpu); struct arch_timer_context *ptimer = vcpu_ptimer(vcpu); - BUG_ON(soft_timer_is_armed(timer)); + BUG_ON(bg_timer_is_armed(timer)); /* * No need to schedule a background timer if any guest timer has @@ -303,14 +303,14 @@ void kvm_timer_schedule(struct kvm_vcpu *vcpu) * Set the earliest expiration time among the guest timers. */ timer->armed = true; - soft_timer_start(&timer->timer, kvm_timer_earliest_exp(vcpu)); + soft_timer_start(&timer->bg_timer, kvm_timer_earliest_exp(vcpu)); } void kvm_timer_unschedule(struct kvm_vcpu *vcpu) { struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu; - soft_timer_cancel(&timer->timer, &timer->expired); + soft_timer_cancel(&timer->bg_timer, &timer->expired); timer->armed = false; } @@ -447,7 +447,7 @@ void kvm_timer_sync_hwstate(struct kvm_vcpu *vcpu) * This is to cancel the background timer for the physical timer * emulation if it is set. */ - soft_timer_cancel(&timer->timer, &timer->expired); + soft_timer_cancel(&timer->bg_timer, &timer->expired); /* * The guest could have modified the timer registers or the timer @@ -504,8 +504,8 @@ void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu) vcpu_ptimer(vcpu)->cntvoff = 0; INIT_WORK(&timer->expired, kvm_timer_inject_irq_work); - hrtimer_init(&timer->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); - timer->timer.function = kvm_timer_expire; + hrtimer_init(&timer->bg_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); + timer->bg_timer.function = kvm_bg_timer_expire; vtimer->irq.irq = default_vtimer_irq.irq; ptimer->irq.irq = default_ptimer_irq.irq; @@ -614,7 +614,7 @@ void kvm_timer_vcpu_terminate(struct kvm_vcpu *vcpu) struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu; struct arch_timer_context *vtimer = vcpu_vtimer(vcpu); - soft_timer_cancel(&timer->timer, &timer->expired); + soft_timer_cancel(&timer->bg_timer, &timer->expired); kvm_vgic_unmap_phys_irq(vcpu, vtimer->irq.irq); } -- 2.9.0 From mboxrd@z Thu Jan 1 00:00:00 1970 From: cdall@linaro.org (Christoffer Dall) Date: Sat, 23 Sep 2017 02:41:55 +0200 Subject: [PATCH v3 08/20] KVM: arm/arm64: Rename soft timer to bg_timer In-Reply-To: <20170923004207.22356-1-cdall@linaro.org> References: <20170923004207.22356-1-cdall@linaro.org> Message-ID: <20170923004207.22356-9-cdall@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org As we are about to introduce a separate hrtimer for the physical timer, call this timer bg_timer, because we refer to this timer as the background timer in the code and comments elsewhere. Signed-off-by: Christoffer Dall --- include/kvm/arm_arch_timer.h | 3 +-- virt/kvm/arm/arch_timer.c | 22 +++++++++++----------- 2 files changed, 12 insertions(+), 13 deletions(-) diff --git a/include/kvm/arm_arch_timer.h b/include/kvm/arm_arch_timer.h index f0053f8..dcbb2e1 100644 --- a/include/kvm/arm_arch_timer.h +++ b/include/kvm/arm_arch_timer.h @@ -43,8 +43,7 @@ struct arch_timer_cpu { struct arch_timer_context ptimer; /* Background timer used when the guest is not running */ - struct hrtimer timer; - + struct hrtimer bg_timer; /* Work queued with the above timer expires */ struct work_struct expired; diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c index 871d8ae..c2e8326 100644 --- a/virt/kvm/arm/arch_timer.c +++ b/virt/kvm/arm/arch_timer.c @@ -56,7 +56,7 @@ u64 kvm_phys_timer_read(void) return timecounter->cc->read(timecounter->cc); } -static bool soft_timer_is_armed(struct arch_timer_cpu *timer) +static bool bg_timer_is_armed(struct arch_timer_cpu *timer) { return timer->armed; } @@ -154,13 +154,13 @@ static u64 kvm_timer_earliest_exp(struct kvm_vcpu *vcpu) return min(min_virt, min_phys); } -static enum hrtimer_restart kvm_timer_expire(struct hrtimer *hrt) +static enum hrtimer_restart kvm_bg_timer_expire(struct hrtimer *hrt) { struct arch_timer_cpu *timer; struct kvm_vcpu *vcpu; u64 ns; - timer = container_of(hrt, struct arch_timer_cpu, timer); + timer = container_of(hrt, struct arch_timer_cpu, bg_timer); vcpu = container_of(timer, struct kvm_vcpu, arch.timer_cpu); /* @@ -267,7 +267,7 @@ static void kvm_timer_emulate(struct kvm_vcpu *vcpu, return; /* The timer has not yet expired, schedule a background timer */ - soft_timer_start(&timer->timer, kvm_timer_compute_delta(timer_ctx)); + soft_timer_start(&timer->bg_timer, kvm_timer_compute_delta(timer_ctx)); } /* @@ -281,7 +281,7 @@ void kvm_timer_schedule(struct kvm_vcpu *vcpu) struct arch_timer_context *vtimer = vcpu_vtimer(vcpu); struct arch_timer_context *ptimer = vcpu_ptimer(vcpu); - BUG_ON(soft_timer_is_armed(timer)); + BUG_ON(bg_timer_is_armed(timer)); /* * No need to schedule a background timer if any guest timer has @@ -303,14 +303,14 @@ void kvm_timer_schedule(struct kvm_vcpu *vcpu) * Set the earliest expiration time among the guest timers. */ timer->armed = true; - soft_timer_start(&timer->timer, kvm_timer_earliest_exp(vcpu)); + soft_timer_start(&timer->bg_timer, kvm_timer_earliest_exp(vcpu)); } void kvm_timer_unschedule(struct kvm_vcpu *vcpu) { struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu; - soft_timer_cancel(&timer->timer, &timer->expired); + soft_timer_cancel(&timer->bg_timer, &timer->expired); timer->armed = false; } @@ -447,7 +447,7 @@ void kvm_timer_sync_hwstate(struct kvm_vcpu *vcpu) * This is to cancel the background timer for the physical timer * emulation if it is set. */ - soft_timer_cancel(&timer->timer, &timer->expired); + soft_timer_cancel(&timer->bg_timer, &timer->expired); /* * The guest could have modified the timer registers or the timer @@ -504,8 +504,8 @@ void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu) vcpu_ptimer(vcpu)->cntvoff = 0; INIT_WORK(&timer->expired, kvm_timer_inject_irq_work); - hrtimer_init(&timer->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); - timer->timer.function = kvm_timer_expire; + hrtimer_init(&timer->bg_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); + timer->bg_timer.function = kvm_bg_timer_expire; vtimer->irq.irq = default_vtimer_irq.irq; ptimer->irq.irq = default_ptimer_irq.irq; @@ -614,7 +614,7 @@ void kvm_timer_vcpu_terminate(struct kvm_vcpu *vcpu) struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu; struct arch_timer_context *vtimer = vcpu_vtimer(vcpu); - soft_timer_cancel(&timer->timer, &timer->expired); + soft_timer_cancel(&timer->bg_timer, &timer->expired); kvm_vgic_unmap_phys_irq(vcpu, vtimer->irq.irq); } -- 2.9.0