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[Qemu-devel] [TRIVIAL][RFC][PATCH] FU exceptions should carry a cause (I
From: |
Balbir Singh |
Subject: |
[Qemu-devel] [TRIVIAL][RFC][PATCH] FU exceptions should carry a cause (IC) |
Date: |
Thu, 10 Nov 2016 12:42:37 +1100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 |
As per the ISA we need a cause for FU exceptions.Executing a tabort r9
for example in libc, 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. I caught this issue while testing
the latest kernel against Cedrics' latest pnv ipmi branch.
Signed-off-by: Balbir singh <address@hidden>
---
target-ppc/excp_helper.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/target-ppc/excp_helper.c b/target-ppc/excp_helper.c
index 808760b..cccea8d 100644
--- a/target-ppc/excp_helper.c
+++ b/target-ppc/excp_helper.c
@@ -427,6 +427,7 @@ 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 */
+ env->spr[SPR_FSCR] |= ((target_ulong)env->error_code << 56);
break;
case POWERPC_EXCP_PIT: /* Programmable interval timer interrupt */
LOG_EXCP("PIT exception\n");
--
2.9.3
- [Qemu-devel] [TRIVIAL][RFC][PATCH] FU exceptions should carry a cause (IC),
Balbir Singh <=