From: Eric Auger <eric.auger@redhat.com> To: eric.auger.pro@gmail.com, eric.auger@redhat.com, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, joro@8bytes.org, alex.williamson@redhat.com, jacob.jun.pan@linux.intel.com, yi.l.liu@linux.intel.com, jean-philippe.brucker@arm.com, will.deacon@arm.com, robin.murphy@arm.com Cc: kevin.tian@intel.com, ashok.raj@intel.com, marc.zyngier@arm.com, christoffer.dall@arm.com, peter.maydell@linaro.org Subject: [PATCH v4 21/22] vfio-pci: Add VFIO_PCI_DMA_FAULT_IRQ_INDEX Date: Mon, 18 Feb 2019 14:55:02 +0100 [thread overview] Message-ID: <20190218135504.25048-22-eric.auger@redhat.com> (raw) In-Reply-To: <20190218135504.25048-1-eric.auger@redhat.com> Add a new VFIO_PCI_DMA_FAULT_IRQ_INDEX index. This allows to set/unset an eventfd that will be triggered when DMA translation faults are detected at physical level when the nested mode is used. Signed-off-by: Eric Auger <eric.auger@redhat.com> --- drivers/vfio/pci/vfio_pci.c | 3 +++ drivers/vfio/pci/vfio_pci_intrs.c | 19 +++++++++++++++++++ include/uapi/linux/vfio.h | 1 + 3 files changed, 23 insertions(+) diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c index 3aaa14eb5518..0886d427f403 100644 --- a/drivers/vfio/pci/vfio_pci.c +++ b/drivers/vfio/pci/vfio_pci.c @@ -698,6 +698,8 @@ static int vfio_pci_get_irq_count(struct vfio_pci_device *vdev, int irq_type) return 1; } else if (irq_type == VFIO_PCI_REQ_IRQ_INDEX) { return 1; + } else if (irq_type == VFIO_PCI_DMA_FAULT_IRQ_INDEX) { + return 1; } return 0; @@ -1025,6 +1027,7 @@ static long vfio_pci_ioctl(void *device_data, switch (info.index) { case VFIO_PCI_INTX_IRQ_INDEX ... VFIO_PCI_MSIX_IRQ_INDEX: case VFIO_PCI_REQ_IRQ_INDEX: + case VFIO_PCI_DMA_FAULT_IRQ_INDEX: break; case VFIO_PCI_ERR_IRQ_INDEX: if (pci_is_pcie(vdev->pdev)) diff --git a/drivers/vfio/pci/vfio_pci_intrs.c b/drivers/vfio/pci/vfio_pci_intrs.c index 1c46045b0e7f..28a96117daf3 100644 --- a/drivers/vfio/pci/vfio_pci_intrs.c +++ b/drivers/vfio/pci/vfio_pci_intrs.c @@ -622,6 +622,18 @@ static int vfio_pci_set_req_trigger(struct vfio_pci_device *vdev, count, flags, data); } +static int vfio_pci_set_dma_fault_trigger(struct vfio_pci_device *vdev, + unsigned index, unsigned start, + unsigned count, uint32_t flags, + void *data) +{ + if (index != VFIO_PCI_DMA_FAULT_IRQ_INDEX || start != 0 || count > 1) + return -EINVAL; + + return vfio_pci_set_ctx_trigger_single(&vdev->dma_fault_trigger, + count, flags, data); +} + int vfio_pci_set_irqs_ioctl(struct vfio_pci_device *vdev, uint32_t flags, unsigned index, unsigned start, unsigned count, void *data) @@ -671,6 +683,13 @@ int vfio_pci_set_irqs_ioctl(struct vfio_pci_device *vdev, uint32_t flags, break; } break; + case VFIO_PCI_DMA_FAULT_IRQ_INDEX: + switch (flags & VFIO_IRQ_SET_ACTION_TYPE_MASK) { + case VFIO_IRQ_SET_ACTION_TRIGGER: + func = vfio_pci_set_dma_fault_trigger; + break; + } + break; } if (!func) diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h index 40b7aec8fefa..b47f65df5b86 100644 --- a/include/uapi/linux/vfio.h +++ b/include/uapi/linux/vfio.h @@ -555,6 +555,7 @@ enum { VFIO_PCI_MSIX_IRQ_INDEX, VFIO_PCI_ERR_IRQ_INDEX, VFIO_PCI_REQ_IRQ_INDEX, + VFIO_PCI_DMA_FAULT_IRQ_INDEX, VFIO_PCI_NUM_IRQS }; -- 2.20.1
WARNING: multiple messages have this Message-ID (diff)
From: Eric Auger <eric.auger@redhat.com> To: eric.auger.pro@gmail.com, eric.auger@redhat.com, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, joro@8bytes.org, alex.williamson@redhat.com, jacob.jun.pan@linux.intel.com, yi.l.liu@linux.intel.com, jean-philippe.brucker@arm.com, will.deacon@arm.com, robin.murphy@arm.com Cc: marc.zyngier@arm.com, kevin.tian@intel.com, ashok.raj@intel.com Subject: [PATCH v4 21/22] vfio-pci: Add VFIO_PCI_DMA_FAULT_IRQ_INDEX Date: Mon, 18 Feb 2019 14:55:02 +0100 [thread overview] Message-ID: <20190218135504.25048-22-eric.auger@redhat.com> (raw) In-Reply-To: <20190218135504.25048-1-eric.auger@redhat.com> Add a new VFIO_PCI_DMA_FAULT_IRQ_INDEX index. This allows to set/unset an eventfd that will be triggered when DMA translation faults are detected at physical level when the nested mode is used. Signed-off-by: Eric Auger <eric.auger@redhat.com> --- drivers/vfio/pci/vfio_pci.c | 3 +++ drivers/vfio/pci/vfio_pci_intrs.c | 19 +++++++++++++++++++ include/uapi/linux/vfio.h | 1 + 3 files changed, 23 insertions(+) diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c index 3aaa14eb5518..0886d427f403 100644 --- a/drivers/vfio/pci/vfio_pci.c +++ b/drivers/vfio/pci/vfio_pci.c @@ -698,6 +698,8 @@ static int vfio_pci_get_irq_count(struct vfio_pci_device *vdev, int irq_type) return 1; } else if (irq_type == VFIO_PCI_REQ_IRQ_INDEX) { return 1; + } else if (irq_type == VFIO_PCI_DMA_FAULT_IRQ_INDEX) { + return 1; } return 0; @@ -1025,6 +1027,7 @@ static long vfio_pci_ioctl(void *device_data, switch (info.index) { case VFIO_PCI_INTX_IRQ_INDEX ... VFIO_PCI_MSIX_IRQ_INDEX: case VFIO_PCI_REQ_IRQ_INDEX: + case VFIO_PCI_DMA_FAULT_IRQ_INDEX: break; case VFIO_PCI_ERR_IRQ_INDEX: if (pci_is_pcie(vdev->pdev)) diff --git a/drivers/vfio/pci/vfio_pci_intrs.c b/drivers/vfio/pci/vfio_pci_intrs.c index 1c46045b0e7f..28a96117daf3 100644 --- a/drivers/vfio/pci/vfio_pci_intrs.c +++ b/drivers/vfio/pci/vfio_pci_intrs.c @@ -622,6 +622,18 @@ static int vfio_pci_set_req_trigger(struct vfio_pci_device *vdev, count, flags, data); } +static int vfio_pci_set_dma_fault_trigger(struct vfio_pci_device *vdev, + unsigned index, unsigned start, + unsigned count, uint32_t flags, + void *data) +{ + if (index != VFIO_PCI_DMA_FAULT_IRQ_INDEX || start != 0 || count > 1) + return -EINVAL; + + return vfio_pci_set_ctx_trigger_single(&vdev->dma_fault_trigger, + count, flags, data); +} + int vfio_pci_set_irqs_ioctl(struct vfio_pci_device *vdev, uint32_t flags, unsigned index, unsigned start, unsigned count, void *data) @@ -671,6 +683,13 @@ int vfio_pci_set_irqs_ioctl(struct vfio_pci_device *vdev, uint32_t flags, break; } break; + case VFIO_PCI_DMA_FAULT_IRQ_INDEX: + switch (flags & VFIO_IRQ_SET_ACTION_TYPE_MASK) { + case VFIO_IRQ_SET_ACTION_TRIGGER: + func = vfio_pci_set_dma_fault_trigger; + break; + } + break; } if (!func) diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h index 40b7aec8fefa..b47f65df5b86 100644 --- a/include/uapi/linux/vfio.h +++ b/include/uapi/linux/vfio.h @@ -555,6 +555,7 @@ enum { VFIO_PCI_MSIX_IRQ_INDEX, VFIO_PCI_ERR_IRQ_INDEX, VFIO_PCI_REQ_IRQ_INDEX, + VFIO_PCI_DMA_FAULT_IRQ_INDEX, VFIO_PCI_NUM_IRQS }; -- 2.20.1
next prev parent reply other threads:[~2019-02-18 14:30 UTC|newest] Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-02-18 13:54 [PATCH v4 00/22] SMMUv3 Nested Stage Setup Eric Auger 2019-02-18 13:54 ` Eric Auger 2019-02-18 13:54 ` [PATCH v4 01/22] driver core: add per device iommu param Eric Auger 2019-02-18 13:54 ` Eric Auger 2019-02-18 13:54 ` [PATCH v4 02/22] iommu: introduce device fault data Eric Auger 2019-02-18 13:54 ` Eric Auger 2019-03-05 14:56 ` Jean-Philippe Brucker 2019-03-06 9:38 ` Auger Eric 2019-03-06 12:08 ` Jean-Philippe Brucker 2019-03-06 11:03 ` Auger Eric 2019-03-06 14:30 ` Auger Eric 2019-03-06 16:07 ` Jean-Philippe Brucker 2019-03-06 17:32 ` Auger Eric 2019-02-18 13:54 ` [PATCH v4 03/22] iommu: introduce device fault report API Eric Auger 2019-02-18 13:54 ` Eric Auger 2019-03-05 15:03 ` Jean-Philippe Brucker 2019-03-06 23:46 ` Jacob Pan 2019-03-07 11:42 ` Jean-Philippe Brucker 2019-03-07 11:42 ` Jean-Philippe Brucker 2019-03-07 11:42 ` Jean-Philippe Brucker 2019-02-18 13:54 ` [PATCH v4 04/22] iommu: Introduce attach/detach_pasid_table API Eric Auger 2019-02-18 13:54 ` Eric Auger 2019-03-05 15:23 ` Jean-Philippe Brucker 2019-03-05 18:15 ` Auger Eric 2019-03-05 18:15 ` Auger Eric 2019-02-18 13:54 ` [PATCH v4 05/22] iommu: Introduce cache_invalidate API Eric Auger 2019-02-18 13:54 ` Eric Auger 2019-03-05 15:28 ` Jean-Philippe Brucker 2019-03-05 18:14 ` Auger Eric 2019-03-05 18:14 ` Auger Eric 2019-03-06 21:59 ` Jacob Pan 2019-03-06 21:59 ` Jacob Pan 2019-02-18 13:54 ` [PATCH v4 06/22] iommu: Introduce bind/unbind_guest_msi Eric Auger 2019-02-18 13:54 ` Eric Auger 2019-02-18 13:54 ` [PATCH v4 07/22] vfio: VFIO_IOMMU_ATTACH/DETACH_PASID_TABLE Eric Auger 2019-02-18 13:54 ` [PATCH v4 08/22] vfio: VFIO_IOMMU_CACHE_INVALIDATE Eric Auger 2019-02-18 13:54 ` Eric Auger 2019-02-18 13:54 ` [PATCH v4 09/22] vfio: VFIO_IOMMU_BIND/UNBIND_MSI Eric Auger 2019-02-18 13:54 ` Eric Auger 2019-02-18 13:54 ` [PATCH v4 10/22] iommu/arm-smmu-v3: Link domains and devices Eric Auger 2019-02-18 13:54 ` Eric Auger 2019-02-18 13:54 ` [PATCH v4 11/22] iommu/arm-smmu-v3: Maintain a SID->device structure Eric Auger 2019-02-18 13:54 ` Eric Auger 2019-02-18 13:54 ` [PATCH v4 12/22] iommu/smmuv3: Get prepared for nested stage support Eric Auger 2019-02-18 13:54 ` Eric Auger 2019-02-18 13:54 ` [PATCH v4 13/22] iommu/smmuv3: Implement attach/detach_pasid_table Eric Auger 2019-02-18 13:54 ` Eric Auger 2019-02-18 13:54 ` [PATCH v4 14/22] iommu/smmuv3: Implement cache_invalidate Eric Auger 2019-02-18 13:54 ` Eric Auger 2019-02-18 13:54 ` [PATCH v4 15/22] dma-iommu: Implement NESTED_MSI cookie Eric Auger 2019-02-18 13:54 ` Eric Auger 2019-02-18 13:54 ` [PATCH v4 16/22] iommu/smmuv3: Implement bind/unbind_guest_msi Eric Auger 2019-02-18 13:54 ` Eric Auger 2019-02-18 13:54 ` [PATCH v4 17/22] iommu/smmuv3: Report non recoverable faults Eric Auger 2019-02-18 13:54 ` Eric Auger 2019-02-18 13:54 ` [PATCH v4 18/22] vfio-pci: Add a new VFIO_REGION_TYPE_NESTED region type Eric Auger 2019-02-18 13:54 ` Eric Auger 2019-02-18 13:55 ` [PATCH v4 19/22] vfio-pci: Register an iommu fault handler Eric Auger 2019-02-18 13:55 ` Eric Auger 2019-02-25 14:22 ` Vincent Stehlé 2019-02-25 17:30 ` Auger Eric 2019-02-18 13:55 ` [PATCH v4 20/22] vfio_pci: Allow to mmap the fault queue Eric Auger 2019-02-18 13:55 ` Eric Auger 2019-02-18 13:55 ` Eric Auger [this message] 2019-02-18 13:55 ` [PATCH v4 21/22] vfio-pci: Add VFIO_PCI_DMA_FAULT_IRQ_INDEX Eric Auger 2019-02-18 13:55 ` [PATCH v4 22/22] vfio: Document nested stage control Eric Auger 2019-02-18 13:55 ` Eric Auger 2019-03-05 8:07 ` [PATCH v4 00/22] SMMUv3 Nested Stage Setup Auger Eric 2019-03-05 16:42 ` Auger Eric
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