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sparc: writing to tick_cmpr should not cause a panic

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This register is writable according to UA2005

Tried to boot NetBSD which starts the kernel by writing to the tick_cmpr
register.  Without the patch gem5 crashes with a panic.  With the patch NetBSD
starts to boot normally (although sun4v support in NetBSD is not complete yet)

Committed by: Nilay Vaish <nilay@cs.wisc.edu>
This commit is contained in:
Palle Lyckegaard 2015-09-15 08:14:07 -05:00
parent 58ec70444d
commit 3de9def6c1
1 changed files with 1 additions and 1 deletions
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2
src/arch/sparc/ua2005.cc
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@ -116,7 +116,7 @@ ISA::setFSReg(int miscReg, const MiscReg &val, ThreadContext *tc)
cpu->deschedule(tickCompare);
cpu->schedule(tickCompare, cpu->clockEdge(Cycles(time)));
}
panic("writing to TICK compare register %#X\n", val);
DPRINTF(Timer, "writing to TICK compare register value %#X\n", val);
break;
case MISCREG_STICK_CMPR: