SUPPORT.md: Specify support for various image formats

QEMU supports various image formats, but we only provide security
support for raw, qcow, qcow2, and vhd formats.

Rather than duplicate this information under the "x86/Emulated
storage" section, just refer to the "Blkback" section.

Signed-off-by: George Dunlap <george.dunlap@citrix.com>
Acked-by: Jan Beulich <jbeulich@suse.com>

diff --git a/SUPPORT.md b/SUPPORT.md
index 87d07129b4a2b891fb115b1cb3efbb4bca9148e5..ee65d45b245e10e0b75724d47374c38fb0d1eeed 100644 (file)
--- a/SUPPORT.md
+++ b/SUPPORT.md
@@ -421,12 +421,17 @@ unless otherwise noted.
 ### Blkback
 
     Status, Linux (xen-blkback): Supported
-    Status, QEMU (xen_disk): Supported
+    Status, QEMU (xen_disk), raw format: Supported
+    Status, QEMU (xen_disk), qcow format: Supported
+    Status, QEMU (xen_disk), qcow2 format: Supported
+    Status, QEMU (xen_disk), vhd format: Supported
     Status, FreeBSD (blkback): Supported, Security support external
     Status, NetBSD (xbdback): Supported, security support external
-    Status, Blktap2: Deprecated
+    Status, Blktap2, raw format: Deprecated
+    Status, Blktap2, vhd format: Deprecated
 
-Host-side implementations of the Xen PV block protocol
+Host-side implementations of the Xen PV block protocol.
+Backends only support raw format unless otherwise specified.
 
 ### Netback
 
@@ -634,6 +639,8 @@ Note that other devices are available but not security supported.
 
     Status, piix3 ide: Supported
     Status, ahci: Supported
+       
+See the section **Blkback** for image formats supported by QEMU.
 
 ### x86/Emulated graphics (QEMU):