File _service:gitpkg:0019-target-arm-A64-Implement-W... of Package qemu-usermode

Overview Repositories Revisions Requests Users Attributes Meta

File _service:gitpkg:0019-target-arm-A64-Implement-WFI.patch of Package qemu-usermode

From 6ae8865286c8ee3139d0cee8f1be0eb99720cc0c Mon Sep 17 00:00:00 2001
From: Peter Maydell <peter.maydell@linaro.org>
Date: Sat, 15 Feb 2014 16:07:12 +0000
Subject: [PATCH] target-arm: A64: Implement WFI

Implement the WFI instruction for A64; this just involves wiring
up the instruction, and adding a gen_a64_set_pc_im() which was
accidentally omitted from the A64 decoder top loop.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target-arm/translate-a64.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c
index a6c8fab..2f47ec5 100644
--- a/target-arm/translate-a64.c
+++ b/target-arm/translate-a64.c
@@ -1080,9 +1080,11 @@ static void handle_hint(DisasContext *s, uint32_t insn,
     switch (selector) {
     case 0: /* NOP */
         return;
+    case 3: /* WFI */
+        s->is_jmp = DISAS_WFI;
+        return;
     case 1: /* YIELD */
     case 2: /* WFE */
-    case 3: /* WFI */
     case 4: /* SEV */
     case 5: /* SEVL */
         /* we treat all as NOP at least for now */
@@ -9124,6 +9126,7 @@ void gen_intermediate_code_internal_a64(ARMCPU *cpu,
             /* This is a special case because we don't want to just halt the CPU
              * if trying to debug across a WFI.
              */
+            gen_a64_set_pc_im(dc->pc);
             gen_helper_wfi(cpu_env);
             break;
         }
-- 
1.9.3

Places

File _service:gitpkg:0019-target-arm-A64-Implement-WFI.patch of Package qemu-usermode

Places