From c2ffd7549b14373e9ca68eccd84fab141ffde646 Mon Sep 17 00:00:00 2001
From: Richard Henderson <richard.henderson@linaro.org>
Date: Mon, 19 Jul 2021 10:43:46 -1000
Subject: accel/tcg: Record singlestep_enabled in tb->cflags
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Set CF_SINGLE_STEP when single-stepping is enabled.
This avoids the need to flush all tb's when turning
single-stepping on or off.

Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 cpu.c | 4 ----
 1 file changed, 4 deletions(-)

(limited to 'cpu.c')

diff --git a/cpu.c b/cpu.c
index d6ae5ae581..e1799a15bc 100644
--- a/cpu.c
+++ b/cpu.c
@@ -326,10 +326,6 @@ void cpu_single_step(CPUState *cpu, int enabled)
         cpu->singlestep_enabled = enabled;
         if (kvm_enabled()) {
             kvm_update_guest_debug(cpu, 0);
-        } else {
-            /* must flush all the translated code to avoid inconsistencies */
-            /* XXX: only flush what is necessary */
-            tb_flush(cpu);
         }
         trace_breakpoint_singlestep(cpu->cpu_index, enabled);
     }
-- 
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