[PATCH v2 1/5] iommu/virtio: Add definitions for VIRTIO_IOMMU_F_BYPASS_CONFIG

From: Jean-Philippe Brucker
Date: Tue Nov 23 2021 - 10:56:42 EST


Add definitions for the VIRTIO_IOMMU_F_BYPASS_CONFIG, which supersedes
VIRTIO_IOMMU_F_BYPASS.

Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@xxxxxxxxxx>
---
include/uapi/linux/virtio_iommu.h | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/include/uapi/linux/virtio_iommu.h b/include/uapi/linux/virtio_iommu.h
index 237e36a280cb..cafd8cf7febf 100644
--- a/include/uapi/linux/virtio_iommu.h
+++ b/include/uapi/linux/virtio_iommu.h
@@ -16,6 +16,7 @@
#define VIRTIO_IOMMU_F_BYPASS 3
#define VIRTIO_IOMMU_F_PROBE 4
#define VIRTIO_IOMMU_F_MMIO 5
+#define VIRTIO_IOMMU_F_BYPASS_CONFIG 6

struct virtio_iommu_range_64 {
__le64 start;
@@ -36,6 +37,8 @@ struct virtio_iommu_config {
struct virtio_iommu_range_32 domain_range;
/* Probe buffer size */
__le32 probe_size;
+ __u8 bypass;
+ __u8 reserved[7];
};

/* Request types */
@@ -66,11 +69,14 @@ struct virtio_iommu_req_tail {
__u8 reserved[3];
};

+#define VIRTIO_IOMMU_ATTACH_F_BYPASS (1 << 0)
+
struct virtio_iommu_req_attach {
struct virtio_iommu_req_head head;
__le32 domain;
__le32 endpoint;
- __u8 reserved[8];
+ __le32 flags;
+ __u8 reserved[4];
struct virtio_iommu_req_tail tail;
};

--
2.33.1