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authorChristoph Müllner <christoph.muellner@vrull.eu>2025-08-01 13:55:33 +0200
committerChristoph Müllner <christophm30@gmail.com>2025-08-01 20:40:25 +0200
commit5d061c0ee23b1052d796e4e8e421aa6e16166fed (patch)
tree0ec5b8dceabfae236de0759c048b2a8fefad047f /linux-headers/include/linux/vfio.h
parent686d7e6564509f1b25127df47e2f27a66958d0a0 (diff)
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Update Linux headers from v6.6 to v6.16HEADmaster
This patch imports the Linux kernel headers v6.16. This brings tons of new supported extensions for hwprobe. Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
Diffstat (limited to 'linux-headers/include/linux/vfio.h')
-rw-r--r--linux-headers/include/linux/vfio.h80
1 files changed, 57 insertions, 23 deletions
diff --git a/linux-headers/include/linux/vfio.h b/linux-headers/include/linux/vfio.h
index acf72b4..79bf8c0 100644
--- a/linux-headers/include/linux/vfio.h
+++ b/linux-headers/include/linux/vfio.h
@@ -35,7 +35,7 @@
#define VFIO_EEH 5
/* Two-stage IOMMU */
-#define VFIO_TYPE1_NESTING_IOMMU 6 /* Implies v2 */
+#define __VFIO_RESERVED_TYPE1_NESTING_IOMMU 6 /* Implies v2 */
#define VFIO_SPAPR_TCE_v2_IOMMU 7
@@ -277,8 +277,8 @@ struct vfio_region_info {
#define VFIO_REGION_INFO_FLAG_CAPS (1 << 3) /* Info supports caps */
__u32 index; /* Region index */
__u32 cap_offset; /* Offset within info struct of first cap */
- __u64 size; /* Region size (bytes) */
- __u64 offset; /* Region offset from start of device fd */
+ __aligned_u64 size; /* Region size (bytes) */
+ __aligned_u64 offset; /* Region offset from start of device fd */
};
#define VFIO_DEVICE_GET_REGION_INFO _IO(VFIO_TYPE, VFIO_BASE + 8)
@@ -294,8 +294,8 @@ struct vfio_region_info {
#define VFIO_REGION_INFO_CAP_SPARSE_MMAP 1
struct vfio_region_sparse_mmap_area {
- __u64 offset; /* Offset of mmap'able area within region */
- __u64 size; /* Size of mmap'able area */
+ __aligned_u64 offset; /* Offset of mmap'able area within region */
+ __aligned_u64 size; /* Size of mmap'able area */
};
struct vfio_region_info_cap_sparse_mmap {
@@ -450,9 +450,9 @@ struct vfio_device_migration_info {
VFIO_DEVICE_STATE_V1_RESUMING)
__u32 reserved;
- __u64 pending_bytes;
- __u64 data_offset;
- __u64 data_size;
+ __aligned_u64 pending_bytes;
+ __aligned_u64 data_offset;
+ __aligned_u64 data_size;
};
/*
@@ -476,7 +476,7 @@ struct vfio_device_migration_info {
struct vfio_region_info_cap_nvlink2_ssatgt {
struct vfio_info_cap_header header;
- __u64 tgt;
+ __aligned_u64 tgt;
};
/*
@@ -671,6 +671,7 @@ enum {
*/
enum {
VFIO_AP_REQ_IRQ_INDEX,
+ VFIO_AP_CFG_CHG_IRQ_INDEX,
VFIO_AP_NUM_IRQS
};
@@ -816,7 +817,7 @@ struct vfio_device_gfx_plane_info {
__u32 drm_plane_type; /* type of plane: DRM_PLANE_TYPE_* */
/* out */
__u32 drm_format; /* drm format of plane */
- __u64 drm_format_mod; /* tiled mode */
+ __aligned_u64 drm_format_mod; /* tiled mode */
__u32 width; /* width of plane */
__u32 height; /* height of plane */
__u32 stride; /* stride of plane */
@@ -829,6 +830,7 @@ struct vfio_device_gfx_plane_info {
__u32 region_index; /* region index */
__u32 dmabuf_id; /* dma-buf id */
};
+ __u32 reserved;
};
#define VFIO_DEVICE_QUERY_GFX_PLANE _IO(VFIO_TYPE, VFIO_BASE + 14)
@@ -863,9 +865,10 @@ struct vfio_device_ioeventfd {
#define VFIO_DEVICE_IOEVENTFD_32 (1 << 2) /* 4-byte write */
#define VFIO_DEVICE_IOEVENTFD_64 (1 << 3) /* 8-byte write */
#define VFIO_DEVICE_IOEVENTFD_SIZE_MASK (0xf)
- __u64 offset; /* device fd offset of write */
- __u64 data; /* data to be written */
+ __aligned_u64 offset; /* device fd offset of write */
+ __aligned_u64 data; /* data to be written */
__s32 fd; /* -1 for de-assignment */
+ __u32 reserved;
};
#define VFIO_DEVICE_IOEVENTFD _IO(VFIO_TYPE, VFIO_BASE + 16)
@@ -929,29 +932,34 @@ struct vfio_device_bind_iommufd {
* VFIO_DEVICE_ATTACH_IOMMUFD_PT - _IOW(VFIO_TYPE, VFIO_BASE + 19,
* struct vfio_device_attach_iommufd_pt)
* @argsz: User filled size of this data.
- * @flags: Must be 0.
+ * @flags: Flags for attach.
* @pt_id: Input the target id which can represent an ioas or a hwpt
* allocated via iommufd subsystem.
* Output the input ioas id or the attached hwpt id which could
* be the specified hwpt itself or a hwpt automatically created
* for the specified ioas by kernel during the attachment.
+ * @pasid: The pasid to be attached, only meaningful when
+ * VFIO_DEVICE_ATTACH_PASID is set in @flags
*
* Associate the device with an address space within the bound iommufd.
* Undo by VFIO_DEVICE_DETACH_IOMMUFD_PT or device fd close. This is only
* allowed on cdev fds.
*
- * If a vfio device is currently attached to a valid hw_pagetable, without doing
- * a VFIO_DEVICE_DETACH_IOMMUFD_PT, a second VFIO_DEVICE_ATTACH_IOMMUFD_PT ioctl
- * passing in another hw_pagetable (hwpt) id is allowed. This action, also known
- * as a hw_pagetable replacement, will replace the device's currently attached
- * hw_pagetable with a new hw_pagetable corresponding to the given pt_id.
+ * If a vfio device or a pasid of this device is currently attached to a valid
+ * hw_pagetable (hwpt), without doing a VFIO_DEVICE_DETACH_IOMMUFD_PT, a second
+ * VFIO_DEVICE_ATTACH_IOMMUFD_PT ioctl passing in another hwpt id is allowed.
+ * This action, also known as a hw_pagetable replacement, will replace the
+ * currently attached hwpt of the device or the pasid of this device with a new
+ * hwpt corresponding to the given pt_id.
*
* Return: 0 on success, -errno on failure.
*/
struct vfio_device_attach_iommufd_pt {
__u32 argsz;
__u32 flags;
+#define VFIO_DEVICE_ATTACH_PASID (1 << 0)
__u32 pt_id;
+ __u32 pasid;
};
#define VFIO_DEVICE_ATTACH_IOMMUFD_PT _IO(VFIO_TYPE, VFIO_BASE + 19)
@@ -960,17 +968,21 @@ struct vfio_device_attach_iommufd_pt {
* VFIO_DEVICE_DETACH_IOMMUFD_PT - _IOW(VFIO_TYPE, VFIO_BASE + 20,
* struct vfio_device_detach_iommufd_pt)
* @argsz: User filled size of this data.
- * @flags: Must be 0.
+ * @flags: Flags for detach.
+ * @pasid: The pasid to be detached, only meaningful when
+ * VFIO_DEVICE_DETACH_PASID is set in @flags
*
- * Remove the association of the device and its current associated address
- * space. After it, the device should be in a blocking DMA state. This is only
- * allowed on cdev fds.
+ * Remove the association of the device or a pasid of the device and its current
+ * associated address space. After it, the device or the pasid should be in a
+ * blocking DMA state. This is only allowed on cdev fds.
*
* Return: 0 on success, -errno on failure.
*/
struct vfio_device_detach_iommufd_pt {
__u32 argsz;
__u32 flags;
+#define VFIO_DEVICE_DETACH_PASID (1 << 0)
+ __u32 pasid;
};
#define VFIO_DEVICE_DETACH_IOMMUFD_PT _IO(VFIO_TYPE, VFIO_BASE + 20)
@@ -1217,6 +1229,7 @@ enum vfio_device_mig_state {
VFIO_DEVICE_STATE_RUNNING_P2P = 5,
VFIO_DEVICE_STATE_PRE_COPY = 6,
VFIO_DEVICE_STATE_PRE_COPY_P2P = 7,
+ VFIO_DEVICE_STATE_NR,
};
/**
@@ -1434,6 +1447,27 @@ struct vfio_device_feature_mig_data_size {
#define VFIO_DEVICE_FEATURE_MIG_DATA_SIZE 9
+/**
+ * Upon VFIO_DEVICE_FEATURE_SET, set or clear the BUS mastering for the device
+ * based on the operation specified in op flag.
+ *
+ * The functionality is incorporated for devices that needs bus master control,
+ * but the in-band device interface lacks the support. Consequently, it is not
+ * applicable to PCI devices, as bus master control for PCI devices is managed
+ * in-band through the configuration space. At present, this feature is supported
+ * only for CDX devices.
+ * When the device's BUS MASTER setting is configured as CLEAR, it will result in
+ * blocking all incoming DMA requests from the device. On the other hand, configuring
+ * the device's BUS MASTER setting as SET (enable) will grant the device the
+ * capability to perform DMA to the host memory.
+ */
+struct vfio_device_feature_bus_master {
+ __u32 op;
+#define VFIO_DEVICE_FEATURE_CLEAR_MASTER 0 /* Clear Bus Master */
+#define VFIO_DEVICE_FEATURE_SET_MASTER 1 /* Set Bus Master */
+};
+#define VFIO_DEVICE_FEATURE_BUS_MASTER 10
+
/* -------- API for Type1 VFIO IOMMU -------- */
/**
@@ -1449,7 +1483,7 @@ struct vfio_iommu_type1_info {
__u32 flags;
#define VFIO_IOMMU_INFO_PGSIZES (1 << 0) /* supported page sizes info */
#define VFIO_IOMMU_INFO_CAPS (1 << 1) /* Info supports caps */
- __u64 iova_pgsizes; /* Bitmap of supported page sizes */
+ __aligned_u64 iova_pgsizes; /* Bitmap of supported page sizes */
__u32 cap_offset; /* Offset within info struct of first cap */
__u32 pad;
};