From patchwork Thu Mar  4 13:45:44 2010
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Subject: scsi: update comment on the standards revision
Date: Thu, 04 Mar 2010 03:45:44 -0000
From: Christoph Hellwig <hch@lst.de>
X-Patchwork-Id: 46909
Message-Id: <20100304134544.GA3109@lst.de>
To: qemu-devel@nongnu.org

Signed-off-by: Christoph Hellwig <hch@lst.de>


Index: qemu/hw/scsi-disk.c
===================================================================
--- qemu.orig/hw/scsi-disk.c	2010-03-04 14:39:43.699022260 +0100
+++ qemu/hw/scsi-disk.c	2010-03-04 14:41:26.768255602 +0100
@@ -462,8 +462,12 @@ static int scsi_disk_emulate_inquiry(SCS
     }
     memcpy(&outbuf[8], "QEMU    ", 8);
     memcpy(&outbuf[32], s->version ? s->version : QEMU_VERSION, 4);
-    /* Identify device as SCSI-3 rev 1.
-       Some later commands are also implemented. */
+    /*
+     * We claim conformance to SPC-3, which is required for guests
+     * to ask for modern features like READ CAPACITY(16) or the
+     * block characteristics VPD page by default.  Not all of SPC-3
+     * is actually implemented, but we're good enough.
+     */
     outbuf[2] = 5;
     outbuf[3] = 2; /* Format 2 */