===================================================================
@@ -453,6 +453,8 @@
# @locked: True if the guest has locked this device from having its media
# removed
#
+# @hostcache: True if host pagecache is enabled.
+#
# @tray_open: #optional True if the device has a tray and it is open
# (only present if removable is true)
#
@@ -466,7 +468,7 @@
##
{ 'type': 'BlockInfo',
'data': {'device': 'str', 'type': 'str', 'removable': 'bool',
- 'locked': 'bool', '*inserted': 'BlockDeviceInfo',
+ 'locked': 'bool','hostcache': 'bool','*inserted': 'BlockDeviceInfo',
'*tray_open': 'bool', '*io-status': 'BlockDeviceIoStatus'} }
##
===================================================================
@@ -2504,6 +2504,7 @@ BlockInfoList *qmp_query_block(Error **e
info->value->device = g_strdup(bs->device_name);
info->value->type = g_strdup("unknown");
info->value->locked = bdrv_dev_is_medium_locked(bs);
+ info->value->hostcache = !(bs->open_flags & BDRV_O_NOCACHE);
info->value->removable = bdrv_dev_has_removable_media(bs);
if (bdrv_dev_has_removable_media(bs)) {
===================================================================
@@ -215,6 +215,8 @@ void hmp_info_block(Monitor *mon)
monitor_printf(mon, " tray-open=%d", info->value->tray_open);
}
+ monitor_printf(mon, " hostcache=%d", info->value->hostcache);
+
if (info->value->has_io_status) {
monitor_printf(mon, " io-status=%s",
BlockDeviceIoStatus_lookup[info->value->io_status]);
Enhance "info block" to display hostcache setting for each block device. Example: (qemu) info block ide0-hd0: removable=0 file=../rhel6-32.raw ro=0 drv=raw encrypted=0 Enhanced to display "hostcache" setting: (qemu) info block ide0-hd0: removable=0 hostcache=1 file=../rhel6-32.raw ro=0 drv=raw encrypted=0 Signed-off-by: Supriya Kannery <supriyak@linux.vnet.ibm.com> ---