[PATCH 06/21] vhost: declare missing IOMMU-related definitions for old kernels
From: Maxime Coquelin <hidden>
Date: 2017-08-31 09:51:27
Subsystem:
library code, the rest · Maintainers:
Andrew Morton, Linus Torvalds
These defines and enums have been introduced in upstream kernel v4.8, and backported to RHEL 7.4. Signed-off-by: Maxime Coquelin <redacted> --- lib/librte_vhost/vhost.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+)
diff --git a/lib/librte_vhost/vhost.h b/lib/librte_vhost/vhost.h
index 2340b0c2a..5c9d9316a 100644
--- a/lib/librte_vhost/vhost.h
+++ b/lib/librte_vhost/vhost.h@@ -132,6 +132,37 @@ struct vhost_virtqueue { #define VIRTIO_NET_F_MTU 3 #endif +/* Declare IOMMU related bits for older kernels */ +#ifndef VIRTIO_F_IOMMU_PLATFORM + +#define VIRTIO_F_IOMMU_PLATFORM 33 + +struct vhost_iotlb_msg { + __u64 iova; + __u64 size; + __u64 uaddr; +#define VHOST_ACCESS_RO 0x1 +#define VHOST_ACCESS_WO 0x2 +#define VHOST_ACCESS_RW 0x3 + __u8 perm; +#define VHOST_IOTLB_MISS 1 +#define VHOST_IOTLB_UPDATE 2 +#define VHOST_IOTLB_INVALIDATE 3 +#define VHOST_IOTLB_ACCESS_FAIL 4 + __u8 type; +}; + +#define VHOST_IOTLB_MSG 0x1 + +struct vhost_msg { + int type; + union { + struct vhost_iotlb_msg iotlb; + __u8 padding[64]; + }; +}; +#endif + /* * Define virtio 1.0 for older kernels */
--
2.13.3