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[Qemu-devel] [PULL 12/12] target/arm: Exit after clearing aarch64 interr


From: Richard Henderson
Subject: [Qemu-devel] [PULL 12/12] target/arm: Exit after clearing aarch64 interrupt mask
Date: Mon, 19 Jun 2017 11:18:39 -0700

Exit to cpu loop so we reevaluate cpu_arm_hw_interrupts.

Tested-by: Emilio G. Cota <address@hidden>
Tested-by: Alex Bennée <address@hidden>
Reviewed-by: Emilio G. Cota <address@hidden>
Reviewed-by: Alex Bennée <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
---
 target/arm/translate-a64.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 860e279..e55547d 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -1422,7 +1422,9 @@ static void handle_msr_i(DisasContext *s, uint32_t insn,
         gen_helper_msr_i_pstate(cpu_env, tcg_op, tcg_imm);
         tcg_temp_free_i32(tcg_imm);
         tcg_temp_free_i32(tcg_op);
-        s->is_jmp = DISAS_UPDATE;
+        /* For DAIFClear, exit the cpu loop to re-evaluate pending IRQs.  */
+        gen_a64_set_pc_im(s->pc);
+        s->is_jmp = (op == 0x1f ? DISAS_EXIT : DISAS_JUMP);
         break;
     }
     default:
@@ -11369,6 +11371,9 @@ void gen_intermediate_code_a64(ARMCPU *cpu, 
TranslationBlock *tb)
         case DISAS_JUMP:
             tcg_gen_lookup_and_goto_ptr(cpu_pc);
             break;
+        case DISAS_EXIT:
+            tcg_gen_exit_tb(0);
+            break;
         case DISAS_TB_JUMP:
         case DISAS_EXC:
         case DISAS_SWI:
-- 
2.9.4




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