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

virtio, vhost: fixes for 2.5

This fixes a performance regression with virtio 1,
and makes device stop/start more robust for vhost-user.
virtio devices on pcie bus now have pcie and pm
capability, as required by the PCI Express spec.
migration now works better with virtio 9p.

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

# gpg: Signature made Thu 12 Nov 2015 14:40:42 GMT using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"

* remotes/mst/tags/for_upstream:
  virtio-9p: add savem handlers
  hw/virtio: Add PCIe capability to virtio devices
  vhost: send SET_VRING_ENABLE at start/stop
  vhost: rename RESET_DEVICE backto RESET_OWNER
  vhost-user: modify SET_LOG_BASE to pass mmap size and offset
  virtio-pci: unbreak queue_enable read
  virtio-pci: introduce pio notification capability for modern device
  virtio-pci: use zero length mmio eventfd for 1.0 notification cap when possible
  KVM: add support for any length io eventfd
  memory: don't try to adjust endianness for zero length eventfd
  virtio-pci: fix 1.0 virtqueue migration

Conflicts:
	include/hw/compat.h
[Fixed a trivial merge conflict in compat.h]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

2 files changed, 13 insertions, 5 deletions

diff --git a/tests/vhost-user-bridge.c b/tests/vhost-user-bridge.c
index fa18ad5..864f69e 100644
--- a/tests/vhost-user-bridge.c
+++ b/tests/vhost-user-bridge.c
@@ -188,7 +188,7 @@ typedef enum VhostUserRequest {
     VHOST_USER_GET_FEATURES = 1,
     VHOST_USER_SET_FEATURES = 2,
     VHOST_USER_SET_OWNER = 3,
-    VHOST_USER_RESET_DEVICE = 4,
+    VHOST_USER_RESET_OWNER = 4,
     VHOST_USER_SET_MEM_TABLE = 5,
     VHOST_USER_SET_LOG_BASE = 6,
     VHOST_USER_SET_LOG_FD = 7,
@@ -274,7 +274,7 @@ static const char *vubr_request_str[] = {
     [VHOST_USER_GET_FEATURES]           =  "VHOST_USER_GET_FEATURES",
     [VHOST_USER_SET_FEATURES]           =  "VHOST_USER_SET_FEATURES",
     [VHOST_USER_SET_OWNER]              =  "VHOST_USER_SET_OWNER",
-    [VHOST_USER_RESET_DEVICE]           =  "VHOST_USER_RESET_DEVICE",
+    [VHOST_USER_RESET_OWNER]           =  "VHOST_USER_RESET_OWNER",
     [VHOST_USER_SET_MEM_TABLE]          =  "VHOST_USER_SET_MEM_TABLE",
     [VHOST_USER_SET_LOG_BASE]           =  "VHOST_USER_SET_LOG_BASE",
     [VHOST_USER_SET_LOG_FD]             =  "VHOST_USER_SET_LOG_FD",
@@ -921,7 +921,7 @@ vubr_execute_request(VubrDev *dev, VhostUserMsg *vmsg)
         return vubr_set_features_exec(dev, vmsg);
     case VHOST_USER_SET_OWNER:
         return vubr_set_owner_exec(dev, vmsg);
-    case VHOST_USER_RESET_DEVICE:
+    case VHOST_USER_RESET_OWNER:
         return vubr_reset_device_exec(dev, vmsg);
     case VHOST_USER_SET_MEM_TABLE:
         return vubr_set_mem_table_exec(dev, vmsg);
diff --git a/tests/vhost-user-test.c b/tests/vhost-user-test.c
index b6dde75..01cfc7e 100644
--- a/tests/vhost-user-test.c
+++ b/tests/vhost-user-test.c
@@ -57,7 +57,7 @@ typedef enum VhostUserRequest {
     VHOST_USER_GET_FEATURES = 1,
     VHOST_USER_SET_FEATURES = 2,
     VHOST_USER_SET_OWNER = 3,
-    VHOST_USER_RESET_DEVICE = 4,
+    VHOST_USER_RESET_OWNER = 4,
     VHOST_USER_SET_MEM_TABLE = 5,
     VHOST_USER_SET_LOG_BASE = 6,
     VHOST_USER_SET_LOG_FD = 7,
@@ -86,6 +86,11 @@ typedef struct VhostUserMemory {
     VhostUserMemoryRegion regions[VHOST_MEMORY_MAX_NREGIONS];
 } VhostUserMemory;
 
+typedef struct VhostUserLog {
+    uint64_t mmap_size;
+    uint64_t mmap_offset;
+} VhostUserLog;
+
 typedef struct VhostUserMsg {
     VhostUserRequest request;
 
@@ -94,10 +99,13 @@ typedef struct VhostUserMsg {
     uint32_t flags;
     uint32_t size; /* the following payload size */
     union {
+#define VHOST_USER_VRING_IDX_MASK   (0xff)
+#define VHOST_USER_VRING_NOFD_MASK  (0x1<<8)
         uint64_t u64;
         struct vhost_vring_state state;
         struct vhost_vring_addr addr;
         VhostUserMemory memory;
+        VhostUserLog log;
     } payload;
 } QEMU_PACKED VhostUserMsg;
 
@@ -307,7 +315,7 @@ static void chr_read(void *opaque, const uint8_t *buf, int size)
         g_cond_signal(&s->data_cond);
         break;
 
-    case VHOST_USER_RESET_DEVICE:
+    case VHOST_USER_RESET_OWNER:
         s->fds_num = 0;
         break;