From: Feng Wu <feng.wu@intel.com> To: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, x86@kernel.org, gleb@kernel.org, pbonzini@redhat.com, dwmw2@infradead.org, joro@8bytes.org, alex.williamson@redhat.com, jiang.liu@linux.intel.com Cc: linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, kvm@vger.kernel.org, Feng Wu <feng.wu@intel.com> Subject: [v2 00/25] Add VT-d Posted-Interrupts support Date: Wed, 3 Dec 2014 15:39:29 +0800 [thread overview] Message-ID: <1417592394-24343-1-git-send-email-feng.wu@intel.com> (raw) VT-d Posted-Interrupts is an enhancement to CPU side Posted-Interrupt. With VT-d Posted-Interrupts enabled, external interrupts from direct-assigned devices can be delivered to guests without VMM intervention when guest is running in non-root mode. You can find the VT-d Posted-Interrtups Spec. in the following URL: http://www.intel.com/content/www/us/en/intelligent-systems/intel-technology/vt-directed-io-spec.html v1->v2: * Use VFIO framework to enable this feature, the VFIO part of this series is base on Eric's patch "[PATCH v3 0/8] KVM-VFIO IRQ forward control" * Rebase this patchset on git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git, then revise some irq logic based on the new hierarchy irqdomain patches provided by Jiang Liu <jiang.liu@linux.intel.com> This patch series is made of the following groups: 1-6: Some preparation changes in iommu and irq component, this is based on the new hierarchy irqdomain logic. 7-9, 25: IOMMU changes for VT-d Posted-Interrupts, such as, feature detection, command line parameter. 10-16, 21-24: Changes related to KVM itself. 17-19: Changes in VFIO component, this part was previously sent out as "[RFC PATCH v2 0/2] kvm-vfio: implement the vfio skeleton for VT-d Posted-Interrupts" 20: x86 irq related changes Feng Wu (25): genirq: Introduce irq_set_vcpu_affinity() to target an interrupt to a VCPU iommu: Add new member capability to struct irq_remap_ops iommu, x86: Define new irte structure for VT-d Posted-Interrupts iommu, x86: Implement irq_set_vcpu_affinity for intel_ir_chip x86, irq: Implement irq_set_vcpu_affinity for pci_msi_ir_controller iommu, x86: No need to migrating irq for VT-d Posted-Interrupts iommu, x86: Add cap_pi_support() to detect VT-d PI capability iommu, x86: Add intel_irq_remapping_capability() for Intel iommu, x86: define irq_remapping_cap() KVM: change struct pi_desc for VT-d Posted-Interrupts KVM: Add some helper functions for Posted-Interrupts KVM: Initialize VT-d Posted-Interrupts Descriptor KVM: Define a new interface kvm_find_dest_vcpu() for VT-d PI KVM: Get Posted-Interrupts descriptor address from struct kvm_vcpu KVM: Make struct kvm_irq_routing_table accessible KVM: make kvm_set_msi_irq() public KVM: kvm-vfio: User API for VT-d Posted-Interrupts KVM: kvm-vfio: implement the VFIO skeleton for VT-d Posted-Interrupts KVM: x86: kvm-vfio: VT-d posted-interrupts setup x86, irq: Define a global vector for VT-d Posted-Interrupts KVM: Update Posted-Interrupts descriptor during vCPU scheduling KVM: Change NDST field after vCPU scheduling KVM: Add the handler for Wake-up Vector KVM: Suppress posted-interrupt when 'SN' is set iommu/vt-d: Add a command line parameter for VT-d posted-interrupts Documentation/kernel-parameters.txt | 1 + Documentation/virtual/kvm/devices/vfio.txt | 9 + arch/x86/include/asm/entry_arch.h | 2 + arch/x86/include/asm/hardirq.h | 1 + arch/x86/include/asm/hw_irq.h | 2 + arch/x86/include/asm/irq_remapping.h | 11 ++ arch/x86/include/asm/irq_vectors.h | 1 + arch/x86/include/asm/kvm_host.h | 14 ++ arch/x86/kernel/apic/msi.c | 1 + arch/x86/kernel/entry_64.S | 2 + arch/x86/kernel/irq.c | 27 +++ arch/x86/kernel/irqinit.c | 2 + arch/x86/kvm/Makefile | 2 +- arch/x86/kvm/kvm_vfio_x86.c | 68 ++++++++ arch/x86/kvm/vmx.c | 251 +++++++++++++++++++++++++++- arch/x86/kvm/x86.c | 38 ++++- drivers/iommu/intel_irq_remapping.c | 64 +++++++ drivers/iommu/irq_remapping.c | 24 +++- drivers/iommu/irq_remapping.h | 8 + include/linux/dmar.h | 32 ++++ include/linux/intel-iommu.h | 1 + include/linux/irq.h | 7 + include/linux/kvm_host.h | 43 +++++ include/uapi/linux/kvm.h | 10 + kernel/irq/chip.c | 14 ++ kernel/irq/manage.c | 20 +++ virt/kvm/irq_comm.c | 43 +++++- virt/kvm/irqchip.c | 11 -- virt/kvm/kvm_main.c | 14 ++ virt/kvm/vfio.c | 103 ++++++++++++ 30 files changed, 799 insertions(+), 27 deletions(-) create mode 100644 arch/x86/kvm/kvm_vfio_x86.c
WARNING: multiple messages have this Message-ID (diff)
From: Feng Wu <feng.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> To: tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org, mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org, x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, gleb-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, pbonzini-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org, joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org, alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, jiang.liu-VuQAYsv1563Yd54FQh9/CA@public.gmane.org Cc: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kvm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Subject: [v2 00/25] Add VT-d Posted-Interrupts support Date: Wed, 3 Dec 2014 15:39:29 +0800 [thread overview] Message-ID: <1417592394-24343-1-git-send-email-feng.wu@intel.com> (raw) VT-d Posted-Interrupts is an enhancement to CPU side Posted-Interrupt. With VT-d Posted-Interrupts enabled, external interrupts from direct-assigned devices can be delivered to guests without VMM intervention when guest is running in non-root mode. You can find the VT-d Posted-Interrtups Spec. in the following URL: http://www.intel.com/content/www/us/en/intelligent-systems/intel-technology/vt-directed-io-spec.html v1->v2: * Use VFIO framework to enable this feature, the VFIO part of this series is base on Eric's patch "[PATCH v3 0/8] KVM-VFIO IRQ forward control" * Rebase this patchset on git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git, then revise some irq logic based on the new hierarchy irqdomain patches provided by Jiang Liu <jiang.liu-VuQAYsv1563Yd54FQh9/CA@public.gmane.org> This patch series is made of the following groups: 1-6: Some preparation changes in iommu and irq component, this is based on the new hierarchy irqdomain logic. 7-9, 25: IOMMU changes for VT-d Posted-Interrupts, such as, feature detection, command line parameter. 10-16, 21-24: Changes related to KVM itself. 17-19: Changes in VFIO component, this part was previously sent out as "[RFC PATCH v2 0/2] kvm-vfio: implement the vfio skeleton for VT-d Posted-Interrupts" 20: x86 irq related changes Feng Wu (25): genirq: Introduce irq_set_vcpu_affinity() to target an interrupt to a VCPU iommu: Add new member capability to struct irq_remap_ops iommu, x86: Define new irte structure for VT-d Posted-Interrupts iommu, x86: Implement irq_set_vcpu_affinity for intel_ir_chip x86, irq: Implement irq_set_vcpu_affinity for pci_msi_ir_controller iommu, x86: No need to migrating irq for VT-d Posted-Interrupts iommu, x86: Add cap_pi_support() to detect VT-d PI capability iommu, x86: Add intel_irq_remapping_capability() for Intel iommu, x86: define irq_remapping_cap() KVM: change struct pi_desc for VT-d Posted-Interrupts KVM: Add some helper functions for Posted-Interrupts KVM: Initialize VT-d Posted-Interrupts Descriptor KVM: Define a new interface kvm_find_dest_vcpu() for VT-d PI KVM: Get Posted-Interrupts descriptor address from struct kvm_vcpu KVM: Make struct kvm_irq_routing_table accessible KVM: make kvm_set_msi_irq() public KVM: kvm-vfio: User API for VT-d Posted-Interrupts KVM: kvm-vfio: implement the VFIO skeleton for VT-d Posted-Interrupts KVM: x86: kvm-vfio: VT-d posted-interrupts setup x86, irq: Define a global vector for VT-d Posted-Interrupts KVM: Update Posted-Interrupts descriptor during vCPU scheduling KVM: Change NDST field after vCPU scheduling KVM: Add the handler for Wake-up Vector KVM: Suppress posted-interrupt when 'SN' is set iommu/vt-d: Add a command line parameter for VT-d posted-interrupts Documentation/kernel-parameters.txt | 1 + Documentation/virtual/kvm/devices/vfio.txt | 9 + arch/x86/include/asm/entry_arch.h | 2 + arch/x86/include/asm/hardirq.h | 1 + arch/x86/include/asm/hw_irq.h | 2 + arch/x86/include/asm/irq_remapping.h | 11 ++ arch/x86/include/asm/irq_vectors.h | 1 + arch/x86/include/asm/kvm_host.h | 14 ++ arch/x86/kernel/apic/msi.c | 1 + arch/x86/kernel/entry_64.S | 2 + arch/x86/kernel/irq.c | 27 +++ arch/x86/kernel/irqinit.c | 2 + arch/x86/kvm/Makefile | 2 +- arch/x86/kvm/kvm_vfio_x86.c | 68 ++++++++ arch/x86/kvm/vmx.c | 251 +++++++++++++++++++++++++++- arch/x86/kvm/x86.c | 38 ++++- drivers/iommu/intel_irq_remapping.c | 64 +++++++ drivers/iommu/irq_remapping.c | 24 +++- drivers/iommu/irq_remapping.h | 8 + include/linux/dmar.h | 32 ++++ include/linux/intel-iommu.h | 1 + include/linux/irq.h | 7 + include/linux/kvm_host.h | 43 +++++ include/uapi/linux/kvm.h | 10 + kernel/irq/chip.c | 14 ++ kernel/irq/manage.c | 20 +++ virt/kvm/irq_comm.c | 43 +++++- virt/kvm/irqchip.c | 11 -- virt/kvm/kvm_main.c | 14 ++ virt/kvm/vfio.c | 103 ++++++++++++ 30 files changed, 799 insertions(+), 27 deletions(-) create mode 100644 arch/x86/kvm/kvm_vfio_x86.c
next reply other threads:[~2014-12-03 7:49 UTC|newest] Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top 2014-12-03 7:39 Feng Wu [this message] 2014-12-03 7:39 ` [v2 00/25] Add VT-d Posted-Interrupts support Feng Wu 2014-12-03 7:39 ` [v2 01/25] genirq: Introduce irq_set_vcpu_affinity() to target an interrupt to a VCPU Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 02/25] iommu: Add new member capability to struct irq_remap_ops Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 03/25] iommu, x86: Define new irte structure for VT-d Posted-Interrupts Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 04/25] iommu, x86: Implement irq_set_vcpu_affinity for intel_ir_chip Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 05/25] x86, irq: Implement irq_set_vcpu_affinity for pci_msi_ir_controller Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 06/25] iommu, x86: No need to migrating irq for VT-d Posted-Interrupts Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 07/25] iommu, x86: Add cap_pi_support() to detect VT-d PI capability Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 08/25] iommu, x86: Add intel_irq_remapping_capability() for Intel Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 09/25] iommu, x86: define irq_remapping_cap() Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 10/25] KVM: change struct pi_desc for VT-d Posted-Interrupts Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 11/25] KVM: Add some helper functions for Posted-Interrupts Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 12/25] KVM: Initialize VT-d Posted-Interrupts Descriptor Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 13/25] KVM: Define a new interface kvm_find_dest_vcpu() for VT-d PI Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 14/25] KVM: Get Posted-Interrupts descriptor address from struct kvm_vcpu Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 15/25] KVM: Make struct kvm_irq_routing_table accessible Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 16/25] KVM: make kvm_set_msi_irq() public Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 17/25] KVM: kvm-vfio: User API for VT-d Posted-Interrupts Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-04 14:04 ` Eric Auger 2014-12-04 14:04 ` Eric Auger 2014-12-08 4:58 ` Wu, Feng 2014-12-08 4:58 ` Wu, Feng 2014-12-08 5:21 ` Alex Williamson 2014-12-08 5:21 ` Alex Williamson 2014-12-09 11:38 ` Wu, Feng 2014-12-09 11:38 ` Wu, Feng 2014-12-11 5:55 ` Wu, Feng 2014-12-11 5:55 ` Wu, Feng 2014-12-11 15:45 ` Alex Williamson 2014-12-11 15:45 ` Alex Williamson 2014-12-03 7:39 ` [v2 18/25] KVM: kvm-vfio: implement the VFIO skeleton " Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-04 15:35 ` Eric Auger 2014-12-04 15:35 ` Eric Auger 2014-12-08 4:58 ` Wu, Feng 2014-12-08 4:58 ` Wu, Feng 2014-12-08 5:12 ` Alex Williamson 2014-12-08 5:12 ` Alex Williamson 2014-12-08 10:15 ` Eric Auger 2014-12-08 10:15 ` Eric Auger 2014-12-09 11:51 ` Wu, Feng 2014-12-09 11:51 ` Wu, Feng 2014-12-03 7:39 ` [v2 19/25] KVM: x86: kvm-vfio: VT-d posted-interrupts setup Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 20/25] x86, irq: Define a global vector for VT-d Posted-Interrupts Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 21/25] KVM: Update Posted-Interrupts descriptor during vCPU scheduling Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 22/25] KVM: Change NDST field after " Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 23/25] KVM: Add the handler for Wake-up Vector Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 24/25] KVM: Suppress posted-interrupt when 'SN' is set Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-03 7:39 ` [v2 25/25] iommu/vt-d: Add a command line parameter for VT-d posted-interrupts Feng Wu 2014-12-03 7:39 ` Feng Wu 2014-12-08 13:36 ` [v2 00/25] Add VT-d Posted-Interrupts support Wu, Feng 2014-12-08 13:36 ` Wu, Feng
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