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lsi: check if SIGP bit is already set in Wait reselect

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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 <svens@stackframe.org>
Tested-by: Helge Deller <deller@gmx.de>
Message-Id: <20190217113717.7077-1-svens@stackframe.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sven Schnelle 2019-02-17 12:37:17 +01:00 • committed by Paolo Bonzini
parent 12dd89f700
commit 2265e98b72
1 changed files with 4 additions and 2 deletions
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6
hw/scsi/lsi53c895a.c
View file

@ -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 */