[Qemu-devel] [RFC Patch 1/3] chardev: add new socket fd parameter for unix socket

[Wei Xu <wexu@redhat.com>]

There has been comments on this patch, but i forgot adding this patch to 
the list, just forward it again.

When manage VMs via libvirt, qemu ofter runs with limited permission,
thus qemu can't create a file/socket, this patch is to  add a new
parameter 'sockfd' to accept fd opened and passed in from libvirt.

Signed-off-by: Wei Xu <wexu@redhat.com>
---
  qapi-schema.json | 3 ++-
  qemu-char.c      | 3 +++
  2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/qapi-schema.json b/qapi-schema.json
index 8483bdf..e9f0268 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -2921,7 +2921,8 @@
  ##
  { 'struct': 'UnixSocketAddress',
    'data': {
-    'path': 'str' } }
+    'path': 'str',
+    'sockfd': 'int32' } }

  ##
  # @SocketAddress
diff --git a/qemu-char.c b/qemu-char.c
index b597ee1..ea9c02e 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -4116,6 +4116,9 @@ QemuOptsList qemu_chardev_opts = {
              .name = "path",
              .type = QEMU_OPT_STRING,
          },{
+            .name = "sockfd",
+            .type = QEMU_OPT_NUMBER,
+        },{
              .name = "host",
              .type = QEMU_OPT_STRING,
          },{
-- 
2.7.1