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authorPeter Maydell <peter.maydell@linaro.org>2017-11-06 18:33:24 +0000
committerRiku Voipio <riku.voipio@linaro.org>2017-11-07 21:58:43 +0200
commit15e692a6fc716f32976eea47946a4892e8ad7a3f (patch)
tree653cfd3f4c63840dd98b9b52a656e8fa7867447a /linux-user/main.c
parentf2d34df3c1a88a2cf86eb0afc88c369d799ae431 (diff)
downloadfocaccia-qemu-15e692a6fc716f32976eea47946a4892e8ad7a3f.tar.gz
focaccia-qemu-15e692a6fc716f32976eea47946a4892e8ad7a3f.zip
linux-user/ppc: Report correct fault address for data faults
For faults on loads and stores, ppc_cpu_handle_mmu_fault() in
target/ppc/user_only_helper.c stores the offending address
in env->spr[SPR_DAR]. Report this correctly to the guest
in si_addr, rather than incorrectly using the address of the
instruction that caused the fault.

This fixes the test case in
https://bugs.launchpad.net/qemu/+bug/1077116
for ppc, ppc64 and ppc64le.

Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Diffstat (limited to 'linux-user/main.c')
-rw-r--r--linux-user/main.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/linux-user/main.c b/linux-user/main.c
index b6dd9efd2d..6286661bd3 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -1420,7 +1420,7 @@ void cpu_loop(CPUPPCState *env)
                 info.si_code = TARGET_SEGV_MAPERR;
                 break;
             }
-            info._sifields._sigfault._addr = env->nip;
+            info._sifields._sigfault._addr = env->spr[SPR_DAR];
             queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
             break;
         case POWERPC_EXCP_ISI:      /* Instruction storage exception         */