[PATCH v3 11/66] target/ppc: Implement do_unaligned_access for user-only

[Richard Henderson <richard.henderson@linaro.org>]

For simplicity on the linux-user side, always use SPR_DAR.

Cc: qemu-ppc@nongnu.org
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 linux-user/ppc/cpu_loop.c | 2 +-
 target/ppc/cpu_init.c     | 2 +-
 target/ppc/excp_helper.c  | 2 ++
 3 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/linux-user/ppc/cpu_loop.c b/linux-user/ppc/cpu_loop.c
index fa91ea0eed..d72d30248b 100644
--- a/linux-user/ppc/cpu_loop.c
+++ b/linux-user/ppc/cpu_loop.c
@@ -165,7 +165,7 @@ void cpu_loop(CPUPPCState *env)
             info.si_signo = TARGET_SIGBUS;
             info.si_errno = 0;
             info.si_code = TARGET_BUS_ADRALN;
-            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_PROGRAM:  /* Program exception                     */
diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
index 505a0ed6ac..84fb6bbb83 100644
--- a/target/ppc/cpu_init.c
+++ b/target/ppc/cpu_init.c
@@ -9014,12 +9014,12 @@ static const struct TCGCPUOps ppc_tcg_ops = {
   .initialize = ppc_translate_init,
   .cpu_exec_interrupt = ppc_cpu_exec_interrupt,
   .tlb_fill = ppc_cpu_tlb_fill,
+  .do_unaligned_access = ppc_cpu_do_unaligned_access,
 
 #ifndef CONFIG_USER_ONLY
   .do_interrupt = ppc_cpu_do_interrupt,
   .cpu_exec_enter = ppc_cpu_exec_enter,
   .cpu_exec_exit = ppc_cpu_exec_exit,
-  .do_unaligned_access = ppc_cpu_do_unaligned_access,
 #endif /* !CONFIG_USER_ONLY */
 };
 #endif /* CONFIG_TCG */
diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c
index d7743704ac..08cc474340 100644
--- a/target/ppc/excp_helper.c
+++ b/target/ppc/excp_helper.c
@@ -1505,6 +1505,7 @@ void ppc_cpu_do_unaligned_access(CPUState *cs, vaddr vaddr,
     CPUPPCState *env = cs->env_ptr;
 
     switch (env->mmu_model) {
+#ifndef CONFIG_USER_ONLY
     case POWERPC_MMU_SOFT_4xx:
     case POWERPC_MMU_SOFT_4xx_Z:
         env->spr[SPR_40x_DEAR] = vaddr;
@@ -1513,6 +1514,7 @@ void ppc_cpu_do_unaligned_access(CPUState *cs, vaddr vaddr,
     case POWERPC_MMU_BOOKE206:
         env->spr[SPR_BOOKE_DEAR] = vaddr;
         break;
+#endif
     default:
         env->spr[SPR_DAR] = vaddr;
         break;
-- 
2.25.1