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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 3/4] target-i386: Move TCG initialization to realize time
Date: Fri, 18 Sep 2015 16:38:15 -0300	[thread overview]
Message-ID: <1442605096-14103-4-git-send-email-ehabkost@redhat.com> (raw)
In-Reply-To: <1442605096-14103-1-git-send-email-ehabkost@redhat.com>

QOM instance_init functions are not supposed to have any side-effects,
as new objects may be created at any moment for querying property
information (see qmp_device_list_properties()).

Move TCG initialization to realize time so it won't be called when just
doing object_new() on a X86CPU subclass.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
Changes v1 -> v2:
 * Now the inited/tcg_initialized variable doesn't exist anymore
 * Move tcg_x86_init() call after basic parameter validation inside
   realizefn
---
 target-i386/cpu.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index f054a69..2e5a303 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -2832,6 +2832,10 @@ static void x86_cpu_realizefn(DeviceState *dev, Error **errp)
         goto out;
     }
 
+    if (tcg_enabled()) {
+        tcg_x86_init();
+    }
+
 #ifndef CONFIG_USER_ONLY
     qemu_register_reset(x86_cpu_machine_reset_cb, cpu);
 
@@ -3069,11 +3073,6 @@ 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()) {
-        tcg_x86_init();
-    }
 }
 
 static int64_t x86_cpu_get_arch_id(CPUState *cs)
-- 
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 ` [Qemu-devel] [PATCH v2 2/4] target-i386: Move TCG initialization check to tcg_x86_init() Eduardo Habkost
2015-09-18 19:38 ` Eduardo Habkost [this message]
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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