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[Qemu-ppc] [PULL 13/19] FU exceptions should carry a cause (IC)

From: David Gibson
Subject: [Qemu-ppc] [PULL 13/19] FU exceptions should carry a cause (IC)
Date: Tue, 15 Nov 2016 13:48:58 +1100

From: Balbir Singh <address@hidden>

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 <address@hidden>
Signed-off-by: David Gibson <address@hidden>
 target-ppc/excp_helper.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/target-ppc/excp_helper.c b/target-ppc/excp_helper.c
index 808760b..93369d4 100644
--- a/target-ppc/excp_helper.c
+++ b/target-ppc/excp_helper.c
@@ -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);
     case POWERPC_EXCP_PIT:       /* Programmable interval timer interrupt    */
         LOG_EXCP("PIT exception\n");

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