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From: Eduardo Habkost <ehabkost@redhat.com>
To: qemu-devel@nongnu.org
Cc: zhugh.fnst@cn.fujitsu.com, tangchen@cn.fujitsu.com,
	chen.fan.fnst@cn.fujitsu.com, isimatu.yasuaki@jp.fujitsu.com,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Gu Zheng" <guz.fnst@cn.fujitsu.com>,
	"Igor Mammedov" <imammedo@redhat.com>,
	anshul.makkar@profitbricks.com,
	"Andreas Färber" <afaerber@suse.de>
Subject: [Qemu-devel] [PATCH v2 2/4] target-i386: Move TCG initialization check to tcg_x86_init()
Date: Fri, 18 Sep 2015 16:38:14 -0300	[thread overview]
Message-ID: <1442605096-14103-3-git-send-email-ehabkost@redhat.com> (raw)
In-Reply-To: <1442605096-14103-1-git-send-email-ehabkost@redhat.com>

Instead of requiring cpu.c to check if TCG was already initialized,
simply let the function be called multiple times.

Suggested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
 target-i386/cpu.c       | 4 +---
 target-i386/translate.c | 6 ++++++
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 22c0f5b..f054a69 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -3021,7 +3021,6 @@ static void x86_cpu_initfn(Object *obj)
     X86CPUClass *xcc = X86_CPU_GET_CLASS(obj);
     CPUX86State *env = &cpu->env;
     FeatureWord w;
-    static int inited;
 
     cs->env_ptr = env;
     cpu_exec_init(cs, &error_abort);
@@ -3072,8 +3071,7 @@ static void x86_cpu_initfn(Object *obj)
     x86_cpu_load_def(cpu, xcc->cpu_def, &error_abort);
 
     /* init various static tables used in TCG mode */
-    if (tcg_enabled() && !inited) {
-        inited = 1;
+    if (tcg_enabled()) {
         tcg_x86_init();
     }
 }
diff --git a/target-i386/translate.c b/target-i386/translate.c
index e6e60e5..8ed3902 100644
--- a/target-i386/translate.c
+++ b/target-i386/translate.c
@@ -7821,6 +7821,12 @@ void tcg_x86_init(void)
 #endif
     };
     int i;
+    static bool initialized = false;
+
+    if (initialized) {
+        return;
+    }
+    initialized = true;
 
     cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
     cpu_cc_op = tcg_global_mem_new_i32(TCG_AREG0,
-- 
2.1.0

  parent reply	other threads:[~2015-09-18 19:39 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-18 19:38 [Qemu-devel] [PATCH v2 0/4] target-i386: Remove side-effects from X86CPU::instance_init Eduardo Habkost
2015-09-18 19:38 ` [Qemu-devel] [PATCH v2 1/4] target-i386: Rename optimize_flags_init() Eduardo Habkost
2015-09-18 19:38 ` Eduardo Habkost [this message]
2015-09-18 19:38 ` [Qemu-devel] [PATCH v2 3/4] target-i386: Move TCG initialization to realize time Eduardo Habkost
2015-09-18 19:38 ` [Qemu-devel] [PATCH v2 4/4] target-i386: Call cpu_exec_init() on realize Eduardo Habkost
2015-09-21  5:41   ` Bharata B Rao
2015-09-21 14:15     ` Eduardo Habkost

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