diff options
| -rw-r--r-- | contrib/libvhost-user/libvhost-user.h | 2 | ||||
| -rw-r--r-- | docs/interop/vhost-user.rst | 21 | ||||
| -rw-r--r-- | hw/virtio/vhost-user.c | 5 |
3 files changed, 22 insertions, 6 deletions
diff --git a/contrib/libvhost-user/libvhost-user.h b/contrib/libvhost-user/libvhost-user.h index a1539dbb69..7d47f1364a 100644 --- a/contrib/libvhost-user/libvhost-user.h +++ b/contrib/libvhost-user/libvhost-user.h @@ -136,7 +136,7 @@ typedef struct VhostUserMemory { } VhostUserMemory; typedef struct VhostUserMemRegMsg { - uint32_t padding; + uint64_t padding; VhostUserMemoryRegion region; } VhostUserMemRegMsg; diff --git a/docs/interop/vhost-user.rst b/docs/interop/vhost-user.rst index 988f154144..6d4025ba6a 100644 --- a/docs/interop/vhost-user.rst +++ b/docs/interop/vhost-user.rst @@ -131,6 +131,23 @@ A region is: :mmap offset: 64-bit offset where region starts in the mapped memory +Single memory region description +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + ++---------+---------------+------+--------------+-------------+ +| padding | guest address | size | user address | mmap offset | ++---------+---------------+------+--------------+-------------+ + +:padding: 64-bit + +:guest address: a 64-bit guest address of the region + +:size: a 64-bit size + +:user address: a 64-bit user address + +:mmap offset: 64-bit offset where region starts in the mapped memory + Log description ^^^^^^^^^^^^^^^ @@ -1281,7 +1298,7 @@ Master message types ``VHOST_USER_ADD_MEM_REG`` :id: 37 :equivalent ioctl: N/A - :slave payload: memory region + :slave payload: single memory region description When the ``VHOST_USER_PROTOCOL_F_CONFIGURE_MEM_SLOTS`` protocol feature has been successfully negotiated, this message is submitted @@ -1296,7 +1313,7 @@ Master message types ``VHOST_USER_REM_MEM_REG`` :id: 38 :equivalent ioctl: N/A - :slave payload: memory region + :slave payload: single memory region description When the ``VHOST_USER_PROTOCOL_F_CONFIGURE_MEM_SLOTS`` protocol feature has been successfully negotiated, this message is submitted diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c index 9c5b4f7fbc..2fdd5daf74 100644 --- a/hw/virtio/vhost-user.c +++ b/hw/virtio/vhost-user.c @@ -149,7 +149,7 @@ typedef struct VhostUserMemory { } VhostUserMemory; typedef struct VhostUserMemRegMsg { - uint32_t padding; + uint64_t padding; VhostUserMemoryRegion region; } VhostUserMemRegMsg; @@ -800,8 +800,7 @@ static int vhost_user_add_remove_regions(struct vhost_dev *dev, uint64_t shadow_pcb[VHOST_USER_MAX_RAM_SLOTS] = {}; int nr_add_reg, nr_rem_reg; - msg->hdr.size = sizeof(msg->payload.mem_reg.padding) + - sizeof(VhostUserMemoryRegion); + msg->hdr.size = sizeof(msg->payload.mem_reg); /* Find the regions which need to be removed or added. */ scrub_shadow_regions(dev, add_reg, &nr_add_reg, rem_reg, &nr_rem_reg, |