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[Qemu-devel] [PATCH 27/32] ppc: Fix CFAR updates


From: Benjamin Herrenschmidt
Subject: [Qemu-devel] [PATCH 27/32] ppc: Fix CFAR updates
Date: Wed, 27 Jul 2016 08:21:21 +1000

We were one instruction off

Signed-off-by: Benjamin Herrenschmidt <address@hidden>
---
 target-ppc/translate.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 5288e02..57e9a12 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -3131,7 +3131,7 @@ static void gen_b(DisasContext *ctx)
     if (LK(ctx->opcode)) {
         gen_setlr(ctx, ctx->nip);
     }
-    gen_update_cfar(ctx, ctx->nip);
+    gen_update_cfar(ctx, ctx->nip - 4);
     gen_goto_tb(ctx, 0, target);
 }
 
@@ -3196,7 +3196,7 @@ static inline void gen_bcond(DisasContext *ctx, int type)
         }
         tcg_temp_free_i32(temp);
     }
-    gen_update_cfar(ctx, ctx->nip);
+    gen_update_cfar(ctx, ctx->nip - 4);
     if (type == BCOND_IM) {
         target_ulong li = (target_long)((int16_t)(BD(ctx->opcode)));
         if (likely(AA(ctx->opcode) == 0)) {
@@ -3311,7 +3311,7 @@ static void gen_rfi(DisasContext *ctx)
      */
     /* Restore CPU state */
     CHK_SV;
-    gen_update_cfar(ctx, ctx->nip);
+    gen_update_cfar(ctx, ctx->nip - 4);
     gen_helper_rfi(cpu_env);
     gen_sync_exception(ctx);
 #endif
@@ -3325,7 +3325,7 @@ static void gen_rfid(DisasContext *ctx)
 #else
     /* Restore CPU state */
     CHK_SV;
-    gen_update_cfar(ctx, ctx->nip);
+    gen_update_cfar(ctx, ctx->nip - 4);
     gen_helper_rfid(cpu_env);
     gen_sync_exception(ctx);
 #endif
-- 
2.7.4




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