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author | Tetsuya Mukawa <mukawa@igel.co.jp> | 2015-12-21 12:47:34 +0900 |
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committer | Michael S. Tsirkin <mst@redhat.com> | 2016-01-09 23:20:20 +0200 |
commit | 56a571d9c803b7a2348373ca3feb44ca4e0d9131 (patch) | |
tree | 81a3cc67130f9b5036f654ff6056ee71b07d5208 /exec.c | |
parent | 50e5ae4dc3e4f21e874512f9e87b93b5472d26e0 (diff) | |
download | qemu-56a571d9c803b7a2348373ca3feb44ca4e0d9131.zip qemu-56a571d9c803b7a2348373ca3feb44ca4e0d9131.tar.gz qemu-56a571d9c803b7a2348373ca3feb44ca4e0d9131.tar.bz2 |
ivshmem: Store file descriptor for vhost-user negotiation
If virtio-net driver allocates memory in ivshmem shared memory,
vhost-net will work correctly, but vhost-user will not work because
a fd of shared memory will not be sent to vhost-user backend.
This patch fixes ivshmem to store file descriptor of shared memory.
It will be used when vhost-user negotiates vhost-user backend.
Signed-off-by: Tetsuya Mukawa <mukawa@igel.co.jp>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'exec.c')
-rw-r--r-- | exec.c | 10 |
1 files changed, 10 insertions, 0 deletions
@@ -1757,6 +1757,16 @@ int qemu_get_ram_fd(ram_addr_t addr) return fd; } +void qemu_set_ram_fd(ram_addr_t addr, int fd) +{ + RAMBlock *block; + + rcu_read_lock(); + block = qemu_get_ram_block(addr); + block->fd = fd; + rcu_read_unlock(); +} + void *qemu_get_ram_block_host_ptr(ram_addr_t addr) { RAMBlock *block; |