[OpenBIOS] [PATCH] Disable mixing of DMA and FIFO messages in the Solaris ESP kernel module.
Mark Cave-Ayland
mark.cave-ayland at siriusit.co.uk
Sun May 1 22:33:43 CEST 2011
QEMU's ESP emulation currently does not support the mixing of DMA and FIFO
messages. Setting the scsi-options property prevents the Solaris ESP kernel
module from trying to use this feature by default, which otherwise would
cause boot to fail.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland at siriusit.co.uk>
---
openbios-devel/drivers/esp.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/openbios-devel/drivers/esp.c b/openbios-devel/drivers/esp.c
index 2dfc2bd..78478f6 100644
--- a/openbios-devel/drivers/esp.c
+++ b/openbios-devel/drivers/esp.c
@@ -383,6 +383,14 @@ ob_esp_initialize(__attribute__((unused)) esp_private_t **esp)
push_str("scsi");
fword("device-type");
+ /* QEMU's ESP emulation does not support mixing DMA and FIFO messages. By
+ setting this attribute, we prevent the Solaris ESP kernel driver from
+ trying to use this feature when booting a disk image (and failing) */
+ PUSH(0x58);
+ fword("encode-int");
+ push_str("scsi-options");
+ fword("property");
+
PUSH(0x24);
fword("encode-int");
PUSH(0);
--
1.7.2.5
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