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-rw-r--r--docs/specs/vhost-user.txt8
1 files changed, 7 insertions, 1 deletions
diff --git a/docs/specs/vhost-user.txt b/docs/specs/vhost-user.txt
index e0d71e27e6..eb8f2b2020 100644
--- a/docs/specs/vhost-user.txt
+++ b/docs/specs/vhost-user.txt
@@ -98,6 +98,7 @@ typedef struct VhostUserMsg {
struct vhost_vring_state state;
struct vhost_vring_addr addr;
VhostUserMemory memory;
+ VhostUserLog log;
};
} QEMU_PACKED VhostUserMsg;
@@ -282,7 +283,12 @@ Message types
Master payload: u64
Slave payload: N/A
- Sets the logging base address.
+ Sets logging shared memory space.
+ When slave has VHOST_USER_PROTOCOL_F_LOG_SHMFD protocol
+ feature, the log memory fd is provided in the ancillary data of
+ VHOST_USER_SET_LOG_BASE message, the size and offset of shared
+ memory area provided in the message.
+
* VHOST_USER_SET_LOG_FD