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From: Pranith Kumar <bobby.prani@gmail.com>
To: Paolo Bonzini <pbonzini@redhat.com>,
	Peter Crosthwaite <crosthwaite.peter@gmail.com>,
	Richard Henderson <rth@twiddle.net>,
	"open list:Overall" <qemu-devel@nongnu.org>
Cc: "Alex Bennée" <alex.bennee@linaro.org>
Subject: [Qemu-devel] [PATCH v2 1/2] tcg: Save cpu flags in atomic execution
Date: Fri, 10 Feb 2017 13:45:24 -0500	[thread overview]
Message-ID: <20170210184525.10966-2-bobby.prani@gmail.com> (raw)
In-Reply-To: <20170210184525.10966-1-bobby.prani@gmail.com>

The current mechanism discards the flags which were set in atomic
execution. Properly save them.

CC: Alex Bennée <alex.bennee@linaro.org>
CC: Richard Henderson <rth@twiddle.net>
CC: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
---
 cpu-exec.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/cpu-exec.c b/cpu-exec.c
index b0ddada8c1..9200c643c2 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -228,6 +228,7 @@ static void cpu_exec_nocache(CPUState *cpu, int max_cycles,
 
 static void cpu_exec_step(CPUState *cpu)
 {
+    CPUClass *cc = CPU_GET_CLASS(cpu);
     CPUArchState *env = (CPUArchState *)cpu->env_ptr;
     TranslationBlock *tb;
     target_ulong cs_base, pc;
@@ -239,9 +240,13 @@ static void cpu_exec_step(CPUState *cpu)
                      1 | CF_NOCACHE | CF_IGNORE_ICOUNT);
     tb->orig_tb = NULL;
     tb_unlock();
+
+    cc->cpu_exec_enter(cpu);
     /* execute the generated code */
     trace_exec_tb_nocache(tb, pc);
     cpu_tb_exec(cpu, tb);
+
+    cc->cpu_exec_exit(cpu);
     tb_lock();
     tb_phys_invalidate(tb, -1);
     tb_free(tb);
-- 
2.11.0

  reply	other threads:[~2017-02-10 18:45 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-10 18:45 [Qemu-devel] [PATCH v2 0/2] mttcg: Handle exception and flags in atomic execution Pranith Kumar
2017-02-10 18:45 ` Pranith Kumar [this message]
2017-02-10 18:45 ` [Qemu-devel] [PATCH v2 2/2] tcg: Set jmp_env for exceptions from " Pranith Kumar

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