From: Feng Wu <feng.wu@intel.com> To: pbonzini@redhat.com, alex.williamson@redhat.com, joro@8bytes.org, mtosatti@redhat.com Cc: eric.auger@linaro.org, kvm@vger.kernel.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Feng Wu <feng.wu@intel.com> Subject: [PATCH v9 15/18] KVM: Add an arch specific hooks in 'struct kvm_kernel_irqfd' Date: Fri, 18 Sep 2015 22:29:53 +0800 [thread overview] Message-ID: <1442586596-5920-16-git-send-email-feng.wu@intel.com> (raw) In-Reply-To: <1442586596-5920-1-git-send-email-feng.wu@intel.com> This patch adds an arch specific hooks 'arch_update' in 'struct kvm_kernel_irqfd'. On Intel side, it is used to update the IRTE when VT-d posted-interrupts is used. Signed-off-by: Feng Wu <feng.wu@intel.com> --- v9: - Use 'if' instead of "? :" in kvm_arch_update_irqfd_routing() - coding style v8: - Remove callback .arch_update() - Remove kvm_arch_irqfd_init() - Call kvm_arch_update_irqfd_routing() instead. arch/x86/kvm/x86.c | 9 +++++++++ include/linux/kvm_host.h | 2 ++ virt/kvm/eventfd.c | 20 +++++++++++++++++++- 3 files changed, 30 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 79dac02..58688aa 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -8293,6 +8293,15 @@ void kvm_arch_irq_bypass_del_producer(struct irq_bypass_consumer *cons, " fails: %d\n", irqfd->consumer.token, ret); } +int kvm_arch_update_irqfd_routing(struct kvm *kvm, unsigned int host_irq, + uint32_t guest_irq, bool set) +{ + if (!kvm_x86_ops->update_pi_irte) + return -EINVAL; + + return kvm_x86_ops->update_pi_irte(kvm, host_irq, guest_irq, set); +} + EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_exit); EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_inj_virq); EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_page_fault); diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 5f183fb..feba1fb 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -1174,6 +1174,8 @@ void kvm_arch_irq_bypass_del_producer(struct irq_bypass_consumer *, struct irq_bypass_producer *); void kvm_arch_irq_bypass_stop(struct irq_bypass_consumer *); void kvm_arch_irq_bypass_start(struct irq_bypass_consumer *); +int kvm_arch_update_irqfd_routing(struct kvm *kvm, unsigned int host_irq, + uint32_t guest_irq, bool set); #endif /* CONFIG_HAVE_KVM_IRQ_BYPASS */ #endif diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c index c0a56a1..94306a3 100644 --- a/virt/kvm/eventfd.c +++ b/virt/kvm/eventfd.c @@ -266,6 +266,13 @@ void __attribute__((weak)) kvm_arch_irq_bypass_start( struct irq_bypass_consumer *cons) { } + +int __attribute__((weak)) kvm_arch_update_irqfd_routing( + struct kvm *kvm, unsigned int host_irq, + uint32_t guest_irq, bool set) +{ + return 0; +} #endif static int @@ -582,13 +589,24 @@ kvm_irqfd_release(struct kvm *kvm) */ void kvm_irq_routing_update(struct kvm *kvm) { + int ret; struct kvm_kernel_irqfd *irqfd; spin_lock_irq(&kvm->irqfds.lock); - list_for_each_entry(irqfd, &kvm->irqfds.items, list) + list_for_each_entry(irqfd, &kvm->irqfds.items, list) { irqfd_update(kvm, irqfd); +#ifdef CONFIG_HAVE_KVM_IRQ_BYPASS + if (irqfd->producer) { + ret = kvm_arch_update_irqfd_routing( + irqfd->kvm, irqfd->producer->irq, + irqfd->gsi, 1); + WARN_ON(ret); + } +#endif + } + spin_unlock_irq(&kvm->irqfds.lock); } -- 2.1.0
WARNING: multiple messages have this Message-ID (diff)
From: Feng Wu <feng.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> To: pbonzini-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org, mtosatti-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org Cc: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kvm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, eric.auger-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org Subject: [PATCH v9 15/18] KVM: Add an arch specific hooks in 'struct kvm_kernel_irqfd' Date: Fri, 18 Sep 2015 22:29:53 +0800 [thread overview] Message-ID: <1442586596-5920-16-git-send-email-feng.wu@intel.com> (raw) In-Reply-To: <1442586596-5920-1-git-send-email-feng.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> This patch adds an arch specific hooks 'arch_update' in 'struct kvm_kernel_irqfd'. On Intel side, it is used to update the IRTE when VT-d posted-interrupts is used. Signed-off-by: Feng Wu <feng.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> --- v9: - Use 'if' instead of "? :" in kvm_arch_update_irqfd_routing() - coding style v8: - Remove callback .arch_update() - Remove kvm_arch_irqfd_init() - Call kvm_arch_update_irqfd_routing() instead. arch/x86/kvm/x86.c | 9 +++++++++ include/linux/kvm_host.h | 2 ++ virt/kvm/eventfd.c | 20 +++++++++++++++++++- 3 files changed, 30 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 79dac02..58688aa 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -8293,6 +8293,15 @@ void kvm_arch_irq_bypass_del_producer(struct irq_bypass_consumer *cons, " fails: %d\n", irqfd->consumer.token, ret); } +int kvm_arch_update_irqfd_routing(struct kvm *kvm, unsigned int host_irq, + uint32_t guest_irq, bool set) +{ + if (!kvm_x86_ops->update_pi_irte) + return -EINVAL; + + return kvm_x86_ops->update_pi_irte(kvm, host_irq, guest_irq, set); +} + EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_exit); EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_inj_virq); EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_page_fault); diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 5f183fb..feba1fb 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -1174,6 +1174,8 @@ void kvm_arch_irq_bypass_del_producer(struct irq_bypass_consumer *, struct irq_bypass_producer *); void kvm_arch_irq_bypass_stop(struct irq_bypass_consumer *); void kvm_arch_irq_bypass_start(struct irq_bypass_consumer *); +int kvm_arch_update_irqfd_routing(struct kvm *kvm, unsigned int host_irq, + uint32_t guest_irq, bool set); #endif /* CONFIG_HAVE_KVM_IRQ_BYPASS */ #endif diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c index c0a56a1..94306a3 100644 --- a/virt/kvm/eventfd.c +++ b/virt/kvm/eventfd.c @@ -266,6 +266,13 @@ void __attribute__((weak)) kvm_arch_irq_bypass_start( struct irq_bypass_consumer *cons) { } + +int __attribute__((weak)) kvm_arch_update_irqfd_routing( + struct kvm *kvm, unsigned int host_irq, + uint32_t guest_irq, bool set) +{ + return 0; +} #endif static int @@ -582,13 +589,24 @@ kvm_irqfd_release(struct kvm *kvm) */ void kvm_irq_routing_update(struct kvm *kvm) { + int ret; struct kvm_kernel_irqfd *irqfd; spin_lock_irq(&kvm->irqfds.lock); - list_for_each_entry(irqfd, &kvm->irqfds.items, list) + list_for_each_entry(irqfd, &kvm->irqfds.items, list) { irqfd_update(kvm, irqfd); +#ifdef CONFIG_HAVE_KVM_IRQ_BYPASS + if (irqfd->producer) { + ret = kvm_arch_update_irqfd_routing( + irqfd->kvm, irqfd->producer->irq, + irqfd->gsi, 1); + WARN_ON(ret); + } +#endif + } + spin_unlock_irq(&kvm->irqfds.lock); } -- 2.1.0
next prev parent reply other threads:[~2015-09-18 14:44 UTC|newest] Thread overview: 103+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-09-18 14:29 [PATCH v9 00/18] Add VT-d Posted-Interrupts support - including prerequisite series Feng Wu 2015-09-18 14:29 ` Feng Wu 2015-09-18 14:29 ` [PATCH v9 01/18] virt: IRQ bypass manager Feng Wu 2015-09-18 14:29 ` Feng Wu 2015-09-18 15:34 ` Wu, Feng 2015-09-18 15:34 ` Wu, Feng 2015-09-18 14:29 ` [PATCH v9 02/18] KVM: x86: select IRQ_BYPASS_MANAGER Feng Wu 2015-09-18 14:29 ` Feng Wu 2015-09-18 14:29 ` [PATCH v9 03/18] KVM: arm/arm64: " Feng Wu 2015-09-21 19:32 ` Eric Auger 2015-09-18 14:29 ` [PATCH v9 04/18] KVM: create kvm_irqfd.h Feng Wu 2015-09-18 14:29 ` Feng Wu 2015-09-18 15:35 ` Wu, Feng 2015-09-18 15:35 ` Wu, Feng 2015-09-18 14:29 ` [PATCH v9 05/18] KVM: introduce kvm_arch functions for IRQ bypass Feng Wu 2015-09-18 14:29 ` Feng Wu 2015-09-18 14:29 ` [PATCH v9 06/18] KVM: eventfd: add irq bypass consumer management Feng Wu 2015-09-18 14:29 ` Feng Wu 2015-09-18 14:29 ` [PATCH v9 07/18] KVM: Extend struct pi_desc for VT-d Posted-Interrupts Feng Wu 2015-09-18 14:29 ` Feng Wu 2015-09-18 14:29 ` [PATCH v9 08/18] KVM: Add some helper functions for Posted-Interrupts Feng Wu 2015-09-18 14:29 ` [PATCH v9 09/18] KVM: Define a new interface kvm_intr_is_single_vcpu() Feng Wu 2015-09-18 14:29 ` Feng Wu 2015-09-18 14:29 ` [PATCH v9 10/18] KVM: Make struct kvm_irq_routing_table accessible Feng Wu 2015-09-18 14:29 ` [PATCH v9 11/18] KVM: make kvm_set_msi_irq() public Feng Wu 2015-09-18 14:29 ` Feng Wu 2015-09-18 14:29 ` [PATCH v9 12/18] vfio: Register/unregister irq_bypass_producer Feng Wu 2015-09-18 14:29 ` Feng Wu 2015-09-18 17:19 ` Alex Williamson 2015-09-18 17:19 ` Alex Williamson 2015-09-21 8:56 ` Wu, Feng 2015-09-21 8:56 ` Wu, Feng 2015-09-21 9:32 ` Paolo Bonzini 2015-09-21 9:32 ` Paolo Bonzini 2015-09-21 11:35 ` Wu, Feng 2015-09-21 11:35 ` Wu, Feng 2015-09-21 12:06 ` Paolo Bonzini 2015-09-21 12:06 ` Paolo Bonzini 2015-09-21 12:08 ` Wu, Feng 2015-09-21 12:08 ` Wu, Feng 2015-09-21 12:53 ` Wu, Feng 2015-09-21 12:53 ` Wu, Feng 2015-09-21 13:02 ` Paolo Bonzini 2015-09-21 19:46 ` Eric Auger 2015-09-21 19:46 ` Eric Auger 2016-04-26 20:08 ` Alex Williamson 2016-04-26 20:08 ` Alex Williamson 2016-04-27 1:32 ` Wu, Feng 2016-04-27 1:32 ` Wu, Feng 2016-04-28 16:40 ` Alex Williamson 2016-04-28 16:40 ` Alex Williamson 2016-04-28 15:35 ` Eric Auger 2016-04-28 15:35 ` Eric Auger 2015-09-18 14:29 ` [PATCH v9 13/18] KVM: x86: Update IRTE for posted-interrupts Feng Wu 2015-09-18 14:29 ` Feng Wu 2015-09-18 14:29 ` [PATCH v9 14/18] KVM: Implement IRQ bypass consumer callbacks for x86 Feng Wu 2015-09-18 14:29 ` Feng Wu 2015-09-18 14:29 ` Feng Wu [this message] 2015-09-18 14:29 ` [PATCH v9 15/18] KVM: Add an arch specific hooks in 'struct kvm_kernel_irqfd' Feng Wu 2015-09-18 14:29 ` [PATCH v9 16/18] KVM: Update Posted-Interrupts Descriptor when vCPU is preempted Feng Wu 2015-09-18 14:29 ` Feng Wu 2015-09-18 14:29 ` [PATCH v9 17/18] KVM: Update Posted-Interrupts Descriptor when vCPU is blocked Feng Wu 2015-09-18 14:29 ` Feng Wu 2015-09-18 16:06 ` Paolo Bonzini 2015-09-18 16:06 ` Paolo Bonzini 2015-09-19 7:11 ` Wu, Feng 2015-09-19 7:11 ` Wu, Feng 2015-09-21 2:16 ` Wu, Feng 2015-09-21 5:32 ` Paolo Bonzini 2015-09-21 5:32 ` Paolo Bonzini 2015-09-21 5:45 ` Wu, Feng 2015-09-21 5:45 ` Wu, Feng 2015-10-14 23:41 ` David Matlack 2015-10-15 1:33 ` Wu, Feng 2015-10-15 1:33 ` Wu, Feng 2015-10-15 17:39 ` David Matlack 2015-10-15 18:13 ` Paolo Bonzini 2015-10-15 18:13 ` Paolo Bonzini 2015-10-16 1:45 ` Wu, Feng 2015-10-16 1:45 ` Wu, Feng 2015-09-18 14:29 ` [PATCH v9 18/18] iommu/vt-d: Add a command line parameter for VT-d posted-interrupts Feng Wu 2015-09-18 14:29 ` Feng Wu 2015-09-21 13:46 ` Joerg Roedel 2015-09-21 13:46 ` Joerg Roedel 2015-09-18 14:58 ` [PATCH v9 00/18] Add VT-d Posted-Interrupts support - including prerequisite series Paolo Bonzini 2015-09-18 14:58 ` Paolo Bonzini 2015-09-18 15:08 ` Wu, Feng 2015-09-18 15:08 ` Wu, Feng 2015-09-18 15:21 ` Paolo Bonzini 2015-09-18 15:21 ` Paolo Bonzini 2015-09-18 15:38 ` Wu, Feng 2015-09-18 17:57 ` Alex Williamson 2015-09-18 17:57 ` Alex Williamson 2015-09-25 1:49 ` Wu, Feng 2015-09-25 1:49 ` Wu, Feng 2015-09-25 11:14 ` Paolo Bonzini 2015-09-25 11:14 ` Paolo Bonzini 2015-09-28 10:14 ` Wu, Feng 2015-09-28 10:14 ` Wu, Feng 2015-09-28 10:18 ` Paolo Bonzini 2015-09-28 10:18 ` Paolo Bonzini 2015-09-28 10:22 ` Wu, Feng 2015-09-28 10:22 ` Wu, Feng
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