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[Qemu-devel] [PATCH] lsi: check if SIGP bit is already set in Wait resel
From: |
Sven Schnelle |
Subject: |
[Qemu-devel] [PATCH] lsi: check if SIGP bit is already set in Wait reselect |
Date: |
Sun, 17 Feb 2019 12:37:17 +0100 |
If SIGP is set, the 'Wait for Reselection' command should jump
immediately to the address stored in the second DWORD of the
instruction. This fixes spurious hangs in the HP-UX 11.11
installer when the SIGP bit gets set by the kernel before the
'Wait for Reselection' command is executed by SCRIPTS.
Signed-off-by: Sven Schnelle <address@hidden>
Tested-by: Helge Deller <address@hidden>
---
hw/scsi/lsi53c895a.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/hw/scsi/lsi53c895a.c b/hw/scsi/lsi53c895a.c
index 8ba07f8756..bcff859bac 100644
--- a/hw/scsi/lsi53c895a.c
+++ b/hw/scsi/lsi53c895a.c
@@ -1297,8 +1297,10 @@ again:
}
break;
case 2: /* Wait Reselect */
- if (!lsi_irq_on_rsl(s)) {
- lsi_wait_reselect(s);
+ if (s->istat0 & LSI_ISTAT0_SIGP) {
+ s->dsp = s->dnad;
+ } else if (!lsi_irq_on_rsl(s)) {
+ lsi_wait_reselect(s);
}
break;
case 3: /* Set */
--
2.20.1
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