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authorMarkus Armbruster <armbru@redhat.com>2011-09-06 18:58:34 +0200
committerKevin Wolf <kwolf@redhat.com>2011-09-12 15:17:18 +0200
commit3f76a7c3815716d21b9932b892825309bf477ee8 (patch)
treef2f54b7d747caa43a7a9e5a20b61085cb8bb312c
parenta7912369929f91aaf42a88b3a0a80f106a681bf4 (diff)
ide: Fix ATA command READ to set ATAPI signature for CD-ROM
Must set the ATAPI device signature, see ATA4 8.27.5.2 Outputs for PACKET Command feature set devices, and ACS-2 7.36.6 Outputs for PACKET feature set devices. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
-rw-r--r--hw/ide/core.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/hw/ide/core.c b/hw/ide/core.c
index 1806e008b..def01266d 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -983,8 +983,10 @@ void ide_exec_cmd(IDEBus *bus, uint32_t val)
lba48 = 1;
case WIN_READ:
case WIN_READ_ONCE:
- if (!s->bs)
+ if (s->drive_kind == IDE_CD) {
+ ide_set_signature(s); /* odd, but ATA4 8.27.5.2 requires it */
goto abort_cmd;
+ }
ide_cmd_lba48_transform(s, lba48);
s->req_nb_sectors = 1;
ide_sector_read(s);