Merge remote-tracking branch 'remotes/aperard/tags/pull-xen-20190114' into staging

Xen queue

* Xen PV backend 'qdevification'.
  Starting with xen_disk.
* Performance improvements for xen-block.
* Remove of the Xen PV domain builder.
* bug fixes.

# gpg: Signature made Mon 14 Jan 2019 13:46:33 GMT
# gpg:                using RSA key 0CF5572FD7FB55AF
# gpg: Good signature from "Anthony PERARD <anthony.perard@gmail.com>"
# gpg:                 aka "Anthony PERARD <anthony.perard@citrix.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 5379 2F71 024C 600F 778A  7161 D8D5 7199 DF83 42C8
#      Subkey fingerprint: F80C 0063 08E2 2CFD 8A92  E798 0CF5 572F D7FB 55AF

* remotes/aperard/tags/pull-xen-20190114: (25 commits)
  xen-block: avoid repeated memory allocation
  xen-block: improve response latency
  xen-block: improve batching behaviour
  xen: Replace few mentions of xend by libxl
  Remove broken Xen PV domain builder
  xen: remove the legacy 'xen_disk' backend
  MAINTAINERS: add myself as a Xen maintainer
  xen: automatically create XenBlockDevice-s
  xen: add a mechanism to automatically create XenDevice-s...
  xen: add implementations of xen-block connect and disconnect functions...
  xen: purge 'blk' and 'ioreq' from function names in dataplane/xen-block.c
  xen: remove 'ioreq' struct/varable/field names from dataplane/xen-block.c
  xen: remove 'XenBlkDev' and 'blkdev' names from dataplane/xen-block
  xen: add header and build dataplane/xen-block.c
  xen: remove unnecessary code from dataplane/xen-block.c
  xen: duplicate xen_disk.c as basis of dataplane/xen-block.c
  xen: add event channel interface for XenDevice-s
  xen: add grant table interface for XenDevice-s
  xen: add xenstore watcher infrastructure
  xen: create xenstore areas for XenDevice-s
  ...

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

1 files changed, 94 insertions, 0 deletions

diff --git a/include/hw/xen/xen-block.h b/include/hw/xen/xen-block.h
new file mode 100644
index 0000000000..11d351b4b3
--- /dev/null
+++ b/include/hw/xen/xen-block.h
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2018  Citrix Systems Inc.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifndef HW_XEN_BLOCK_H
+#define HW_XEN_BLOCK_H
+
+#include "hw/xen/xen-bus.h"
+#include "hw/block/block.h"
+#include "hw/block/dataplane/xen-block.h"
+#include "sysemu/iothread.h"
+
+typedef enum XenBlockVdevType {
+    XEN_BLOCK_VDEV_TYPE_INVALID,
+    XEN_BLOCK_VDEV_TYPE_DP,
+    XEN_BLOCK_VDEV_TYPE_XVD,
+    XEN_BLOCK_VDEV_TYPE_HD,
+    XEN_BLOCK_VDEV_TYPE_SD,
+    XEN_BLOCK_VDEV_TYPE__MAX
+} XenBlockVdevType;
+
+typedef struct XenBlockVdev {
+    XenBlockVdevType type;
+    unsigned long disk;
+    unsigned long partition;
+    unsigned long number;
+} XenBlockVdev;
+
+
+typedef struct XenBlockProperties {
+    XenBlockVdev vdev;
+    BlockConf conf;
+    unsigned int max_ring_page_order;
+    IOThread *iothread;
+} XenBlockProperties;
+
+typedef struct XenBlockDrive {
+    char *id;
+    char *node_name;
+} XenBlockDrive;
+
+typedef struct XenBlockIOThread {
+    char *id;
+} XenBlockIOThread;
+
+typedef struct XenBlockDevice {
+    XenDevice xendev;
+    XenBlockProperties props;
+    const char *device_type;
+    unsigned int info;
+    XenBlockDataPlane *dataplane;
+    XenBlockDrive *drive;
+    XenBlockIOThread *iothread;
+} XenBlockDevice;
+
+typedef void (*XenBlockDeviceRealize)(XenBlockDevice *blockdev, Error **errp);
+typedef void (*XenBlockDeviceUnrealize)(XenBlockDevice *blockdev, Error **errp);
+
+typedef struct XenBlockDeviceClass {
+    /*< private >*/
+    XenDeviceClass parent_class;
+    /*< public >*/
+    XenBlockDeviceRealize realize;
+    XenBlockDeviceUnrealize unrealize;
+} XenBlockDeviceClass;
+
+#define TYPE_XEN_BLOCK_DEVICE  "xen-block"
+#define XEN_BLOCK_DEVICE(obj) \
+     OBJECT_CHECK(XenBlockDevice, (obj), TYPE_XEN_BLOCK_DEVICE)
+#define XEN_BLOCK_DEVICE_CLASS(class) \
+     OBJECT_CLASS_CHECK(XenBlockDeviceClass, (class), TYPE_XEN_BLOCK_DEVICE)
+#define XEN_BLOCK_DEVICE_GET_CLASS(obj) \
+     OBJECT_GET_CLASS(XenBlockDeviceClass, (obj), TYPE_XEN_BLOCK_DEVICE)
+
+typedef struct XenDiskDevice {
+    XenBlockDevice blockdev;
+} XenDiskDevice;
+
+#define TYPE_XEN_DISK_DEVICE  "xen-disk"
+#define XEN_DISK_DEVICE(obj) \
+     OBJECT_CHECK(XenDiskDevice, (obj), TYPE_XEN_DISK_DEVICE)
+
+typedef struct XenCDRomDevice {
+    XenBlockDevice blockdev;
+} XenCDRomDevice;
+
+#define TYPE_XEN_CDROM_DEVICE  "xen-cdrom"
+#define XEN_CDROM_DEVICE(obj) \
+     OBJECT_CHECK(XenCDRomDevice, (obj), TYPE_XEN_CDROM_DEVICE)
+
+#endif /* HW_XEN_BLOCK_H */