Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio, pc: fixes and features

more guest error handling for virtio devices
virtio migration rework
pc fixes

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Mon 10 Oct 2016 00:39:11 BST
# gpg:                using RSA key 0x281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream: (33 commits)
  intel-iommu: Check IOAPIC's Trigger Mode against the one in IRTE
  virtio: cleanup VMSTATE_VIRTIO_DEVICE
  vhost-vsock: convert VMSTATE_VIRTIO_DEVICE
  virtio-rng: convert VMSTATE_VIRTIO_DEVICE
  virtio-balloon: convert VMSTATE_VIRTIO_DEVICE
  virtio-scsi: convert VMSTATE_VIRTIO_DEVICE
  virtio-input: convert VMSTATE_VIRTIO_DEVICE
  virtio-gpu: convert VMSTATE_VIRTIO_DEVICE
  virtio-serial: convert VMSTATE_VIRTIO_DEVICE
  virtio-9p: convert VMSTATE_VIRTIO_DEVICE
  virtio-net: convert VMSTATE_VIRTIO_DEVICE
  virtio-blk: convert VMSTATE_VIRTIO_DEVICE
  virtio: prepare change VMSTATE_VIRTIO_DEVICE macro
  net: don't poke at chardev internal QemuOpts
  virtio-scsi: handle virtio_scsi_set_config() error
  virtio-scsi: convert virtio_scsi_bad_req() to use virtio_error()
  virtio-net: handle virtio_net_flush_tx() errors
  virtio-net: handle virtio_net_receive() errors
  virtio-net: handle virtio_net_handle_ctrl() error
  virtio-blk: handle virtio_blk_handle_request() errors
  ...

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

1 files changed, 20 insertions, 1 deletions

diff --git a/include/sysemu/char.h b/include/sysemu/char.h
index 4593576cf7..0d121756ef 100644
--- a/include/sysemu/char.h
+++ b/include/sysemu/char.h
@@ -9,6 +9,7 @@
 #include "qapi/qmp/qobject.h"
 #include "qapi/qmp/qstring.h"
 #include "qemu/main-loop.h"
+#include "qemu/bitmap.h"
 
 /* character device */
 
@@ -58,6 +59,20 @@ struct ParallelIOArg {
 
 typedef void IOEventHandler(void *opaque, int event);
 
+typedef enum {
+    /* Whether the chardev peer is able to close and
+     * reopen the data channel, thus requiring support
+     * for qemu_chr_wait_connected() to wait for a
+     * valid connection */
+    QEMU_CHAR_FEATURE_RECONNECTABLE,
+    /* Whether it is possible to send/recv file descriptors
+     * over the data channel */
+    QEMU_CHAR_FEATURE_FD_PASS,
+
+    QEMU_CHAR_FEATURE_LAST,
+} CharDriverFeature;
+
+
 struct CharDriverState {
     QemuMutex chr_write_lock;
     void (*init)(struct CharDriverState *s);
@@ -94,8 +109,8 @@ struct CharDriverState {
     int is_mux;
     int mux_idx;
     guint fd_in_tag;
-    QemuOpts *opts;
     bool replay;
+    DECLARE_BITMAP(features, QEMU_CHAR_FEATURE_LAST);
     QTAILQ_ENTRY(CharDriverState) next;
 };
 
@@ -438,6 +453,10 @@ int qemu_chr_add_client(CharDriverState *s, int fd);
 CharDriverState *qemu_chr_find(const char *name);
 bool chr_is_ringbuf(const CharDriverState *chr);
 
+bool qemu_chr_has_feature(CharDriverState *chr,
+                          CharDriverFeature feature);
+void qemu_chr_set_feature(CharDriverState *chr,
+                          CharDriverFeature feature);
 QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename);
 
 void register_char_driver(const char *name, ChardevBackendKind kind,