Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

Four changes here.  Polling for reconnection of character devices,
the QOMification of accelerators, a fix for -kernel support on x86, and one
for a recently-introduced virtio-scsi optimization.

# gpg: Signature made Thu 09 Oct 2014 14:36:50 BST using RSA key ID 4E6B09D7
# gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>"
# gpg:                 aka "Paolo Bonzini <bonzini@gnu.org>"

* remotes/bonzini/tags/for-upstream: (28 commits)
  qemu-char: Fix reconnect socket error reporting
  qemu-sockets: Add error to non-blocking connect handler
  qemu-error: Add error_vreport()
  virtio-scsi: fix use-after-free of VirtIOSCSIReq
  linuxboot: compute initrd loading address
  kvm: Make KVMState be the TYPE_KVM_ACCEL instance struct
  accel: Create accel object when initializing machine
  accel: Pass MachineState object to accel init functions
  accel: Rename 'init' method to 'init_machine'
  accel: Move accel init/allowed code to separate function
  accel: Remove tcg_available() function
  accel: Move qtest accel registration to qtest.c
  accel: Move Xen registration code to xen-common.c
  accel: Move KVM accel registration to kvm-all.c
  accel: Report unknown accelerator as "not found" instead of "does not exist"
  accel: Make AccelClass.available() optional
  accel: Use QOM classes for accel types
  accel: Move accel name lookup to separate function
  accel: Simplify configure_accelerator() using AccelType *acc variable
  accel: Create AccelType typedef
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 15 insertions, 5 deletions

diff --git a/util/qemu-sockets.c b/util/qemu-sockets.c
index 1eef590af5..a76bb3c913 100644
--- a/util/qemu-sockets.c
+++ b/util/qemu-sockets.c
@@ -234,6 +234,7 @@ static void wait_for_connect(void *opaque)
     int val = 0, rc = 0;
     socklen_t valsize = sizeof(val);
     bool in_progress;
+    Error *err = NULL;
 
     qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
 
@@ -244,10 +245,12 @@ static void wait_for_connect(void *opaque)
     /* update rc to contain error */
     if (!rc && val) {
         rc = -1;
+        errno = val;
     }
 
     /* connect error */
     if (rc < 0) {
+        error_setg_errno(&err, errno, "Error connecting to socket");
         closesocket(s->fd);
         s->fd = rc;
     }
@@ -257,9 +260,14 @@ static void wait_for_connect(void *opaque)
         while (s->current_addr->ai_next != NULL && s->fd < 0) {
             s->current_addr = s->current_addr->ai_next;
             s->fd = inet_connect_addr(s->current_addr, &in_progress, s, NULL);
+            if (s->fd < 0) {
+                error_free(err);
+                err = NULL;
+                error_setg_errno(&err, errno, "Unable to start socket connect");
+            }
             /* connect in progress */
             if (in_progress) {
-                return;
+                goto out;
             }
         }
 
@@ -267,9 +275,11 @@ static void wait_for_connect(void *opaque)
     }
 
     if (s->callback) {
-        s->callback(s->fd, s->opaque);
+        s->callback(s->fd, err, s->opaque);
     }
     g_free(s);
+out:
+    error_free(err);
 }
 
 static int inet_connect_addr(struct addrinfo *addr, bool *in_progress,
@@ -401,7 +411,7 @@ int inet_connect_opts(QemuOpts *opts, Error **errp,
         return sock;
     } else {
         if (callback) {
-            callback(sock, opaque);
+            callback(sock, NULL, opaque);
         }
     }
     g_free(connect_state);
@@ -769,7 +779,7 @@ int unix_connect_opts(QemuOpts *opts, Error **errp,
     } else if (rc >= 0) {
         /* non blocking socket immediate success, call callback */
         if (callback != NULL) {
-            callback(sock, opaque);
+            callback(sock, NULL, opaque);
         }
     }
 
@@ -919,7 +929,7 @@ int socket_connect(SocketAddress *addr, Error **errp,
         fd = monitor_get_fd(cur_mon, addr->fd->str, errp);
         if (fd >= 0 && callback) {
             qemu_set_nonblock(fd);
-            callback(fd, opaque);
+            callback(fd, NULL, opaque);
         }
         break;