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| author | Sebastien Boeuf <sebastien.boeuf@intel.com> | 2021-03-04 17:43:35 +0100 |
|---|---|---|
| committer | Jiang Liu <gerry@linux.alibaba.com> | 2021-03-10 23:37:29 +0800 |
| commit | 7e3ab1af4e1c2157e206798683b64eb384c3693a (patch) | |
| tree | fb40e5705f62b2374b8dc5d639b60d1792b3a89d /src/vhost_user/dummy_slave.rs | |
| parent | e7d46d6980ed1312e16243ff2ec4bb018f9aec5f (diff) | |
| download | vmm_vhost-7e3ab1af4e1c2157e206798683b64eb384c3693a.tar.gz | |
vhost_user: Add support for ADD_MEM_REG
Adding support for a new message ADD_MEM_REG. This command request a new
region to be added and mapped by the vhost-user backend.
It is designed for supporting memory hotplug, avoiding the limitation
from SET_MEM_TABLE (supports only 8 regions).
It is only available if the protocol feature
VHOST_USER_PROTOCOL_F_CONFIGURE_MEM_SLOTS has been negotiated.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Diffstat (limited to 'src/vhost_user/dummy_slave.rs')
| -rw-r--r-- | src/vhost_user/dummy_slave.rs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/vhost_user/dummy_slave.rs b/src/vhost_user/dummy_slave.rs index 989888f..895537b 100644 --- a/src/vhost_user/dummy_slave.rs +++ b/src/vhost_user/dummy_slave.rs @@ -248,4 +248,8 @@ impl VhostUserSlaveReqHandlerMut for DummySlaveReqHandler { fn get_max_mem_slots(&mut self) -> Result<u64> { Ok(MAX_MEM_SLOTS as u64) } + + fn add_mem_region(&mut self, _region: &VhostUserSingleMemoryRegion, _fd: RawFd) -> Result<()> { + Ok(()) + } } |