Add fault information for group-id and necessary flags for page
request faults that can be handled by page fault handler in
virtio-iommu driver.
Signed-off-by: Vivek Gautam <vivek.gau...@arm.com>
Cc: Joerg Roedel <j...@8bytes.org>
Cc: Will Deacon <will.dea...@arm.com>
Cc: Robin Murphy <robin.mur...@arm.com>
Cc: Jean-Philippe Brucker <jean-phili...@linaro.org>
Cc: Eric Auger <eric.au...@redhat.com>
Cc: Alex Williamson <alex.william...@redhat.com>
Cc: Kevin Tian <kevin.t...@intel.com>
Cc: Jacob Pan <jacob.jun....@linux.intel.com>
Cc: Liu Yi L <yi.l....@intel.com>
Cc: Lorenzo Pieralisi <lorenzo.pieral...@arm.com>
Cc: Shameerali Kolothum Thodi <shameerali.kolothum.th...@huawei.com>
---
include/uapi/linux/virtio_iommu.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/include/uapi/linux/virtio_iommu.h
b/include/uapi/linux/virtio_iommu.h
index f8bf927a0689..accc3318ce46 100644
--- a/include/uapi/linux/virtio_iommu.h
+++ b/include/uapi/linux/virtio_iommu.h
@@ -307,14 +307,27 @@ struct virtio_iommu_req_invalidate {
#define VIRTIO_IOMMU_FAULT_F_DMA_UNRECOV 1
#define VIRTIO_IOMMU_FAULT_F_PAGE_REQ 2
+#define VIRTIO_IOMMU_FAULT_PRQ_F_PASID_VALID (1 << 0)
+#define VIRTIO_IOMMU_FAULT_PRQ_F_LAST_PAGE (1 << 1)
+#define VIRTIO_IOMMU_FAULT_PRQ_F_PRIV_DATA (1 << 2)
+#define VIRTIO_IOMMU_FAULT_PRQ_F_NEEDS_PASID (1 << 3)
+
+#define VIRTIO_IOMMU_FAULT_UNREC_F_PASID_VALID (1 << 0)
+#define VIRTIO_IOMMU_FAULT_UNREC_F_ADDR_VALID (1 << 1)
+#define VIRTIO_IOMMU_FAULT_UNREC_F_FETCH_ADDR_VALID (1 << 2)
+
struct virtio_iommu_fault {
__u8 reason;
__u8 reserved[3];
__le16 flt_type;
__u8 reserved2[2];
+ /* flags is actually permission flags */
__le32 flags;
+ /* flags for PASID and Page request handling info */
+ __le32 pr_evt_flags;
__le32 endpoint;
__le32 pasid;
+ __le32 grpid;
__u8 reserved3[4];
__le64 address;
__u8 reserved4[8];
--
2.17.1
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