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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>
This commit is contained in:
Peter Maydell 2017-11-06 18:33:24 +00:00 committed by Riku Voipio
parent f2d34df3c1
commit 15e692a6fc
1 changed files with 1 additions and 1 deletions
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2
linux-user/main.c
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@ -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 */