[Xen-changelog] [qemu-xen master] FU exceptions should carry a cause (IC)

[patchbot@xxxxxxx]

commit 5310799a8b687a6cf0b5dbabaa3b6ddc8a6a7a1a
Author:     Balbir Singh <bsingharora@xxxxxxxxx>
AuthorDate: Thu Nov 10 15:37:31 2016 +1100
Commit:     David Gibson <david@xxxxxxxxxxxxxxxxxxxxx>
CommitDate: Tue Nov 15 10:08:43 2016 +1100

    FU exceptions should carry a cause (IC)
    
    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@xxxxxxxxx>
    Signed-off-by: David Gibson <david@xxxxxxxxxxxxxxxxxxxxx>
---
 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);
+#endif
         break;
     case POWERPC_EXCP_PIT:       /* Programmable interval timer interrupt    */
         LOG_EXCP("PIT exception\n");
--
generated by git-patchbot for /home/xen/git/qemu-xen.git#master

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