haraldwolff/qemu-patch-raspberry4
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FU exceptions should carry a cause (IC)

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As per the ISA we need a cause and executing a tabort r9 in libc
for example causes a EXCP_FU exception, we don't wire up the
IC (cause) when we post the exception. The cause is required
for the kernel to do the right thing. The fix applies only to 64
bit ppc targets.

Signed-off-by: Balbir singh <bsingharora@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Balbir Singh 2016-11-10 15:37:31 +11:00 committed by David Gibson
parent 9b54ca0ba7
commit 5310799a8b
1 changed files with 3 additions and 0 deletions
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3
target-ppc/excp_helper.c
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@ -427,6 +427,9 @@ static inline void powerpc_excp(PowerPCCPU *cpu, int excp_model, int excp)
case POWERPC_EXCP_VPU: /* Vector unavailable exception */
case POWERPC_EXCP_VSXU: /* VSX unavailable exception */
case POWERPC_EXCP_FU: /* Facility unavailable exception */
#ifdef TARGET_PPC64
env->spr[SPR_FSCR] |= ((target_ulong)env->error_code << 56);
#endif
break;
case POWERPC_EXCP_PIT: /* Programmable interval timer interrupt */
LOG_EXCP("PIT exception\n");