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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 5/6] target-i386: Move TCG initialization to realize time
Date: Thu,  5 Mar 2015 12:38:49 -0300	[thread overview]
Message-ID: <1425569930-6660-6-git-send-email-ehabkost@redhat.com> (raw)
In-Reply-To: <1425569930-6660-1-git-send-email-ehabkost@redhat.com>

To ask the CPU classes for CPU model information and allow QOM
properties to be queried by qmp_device_list_properties(), we need to be
able to safely instantiate a X86CPU object without any side-effects.

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>
---
 target-i386/cpu.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index b4e70d3..400b1e0 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -2756,6 +2756,12 @@ static void x86_cpu_realizefn(DeviceState *dev, Error **errp)
     CPUX86State *env = &cpu->env;
     Error *local_err = NULL;
     static bool ht_warned;
+    static bool tcg_initialized;
+
+    if (tcg_enabled() && !tcg_initialized) {
+        tcg_initialized = 1;
+        tcg_x86_init();
+    }
 
     if (cpu->apic_id < 0) {
         error_setg(errp, "apic-id property was not initialized properly");
@@ -2832,7 +2838,6 @@ static void x86_cpu_initfn(Object *obj)
     X86CPU *cpu = X86_CPU(obj);
     X86CPUClass *xcc = X86_CPU_GET_CLASS(obj);
     CPUX86State *env = &cpu->env;
-    static int inited;
 
     cs->env_ptr = env;
     cpu_exec_init(env);
@@ -2879,12 +2884,6 @@ static void x86_cpu_initfn(Object *obj)
 #endif
 
     x86_cpu_load_def(cpu, xcc->cpu_def, &error_abort);
-
-    /* init various static tables used in TCG mode */
-    if (tcg_enabled() && !inited) {
-        inited = 1;
-        tcg_x86_init();
-    }
 }
 
 static int64_t x86_cpu_get_arch_id(CPUState *cs)
-- 
2.1.0

  parent reply	other threads:[~2015-03-05 15:39 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-05 15:38 [Qemu-devel] [PATCH 0/6] target-i386: Remove side-effects from X86CPU::instance_init Eduardo Habkost
2015-03-05 15:38 ` [Qemu-devel] [PATCH 1/6] cpu: No need to zero-initialize numa_node Eduardo Habkost
2015-03-05 16:13   ` Igor Mammedov
2015-03-05 15:38 ` [Qemu-devel] [PATCH 2/6] cpu: Initialize breakpoint/watchpoint lists on cpu_common_initfn() Eduardo Habkost
2015-03-05 16:15   ` Igor Mammedov
2015-03-05 15:38 ` [Qemu-devel] [PATCH 3/6] cpu: Reorder cpu->as and cpu->thread_id initialization Eduardo Habkost
2015-03-05 16:22   ` Igor Mammedov
2015-03-05 15:38 ` [Qemu-devel] [PATCH 4/6] target-i386: Rename optimize_flags_init() Eduardo Habkost
2015-03-05 16:31   ` Igor Mammedov
2015-03-05 16:38     ` Eduardo Habkost
2015-03-05 15:38 ` Eduardo Habkost [this message]
2015-03-05 15:38 ` [Qemu-devel] [PATCH 6/6] target-i386: Call cpu_exec_init() on realize Eduardo Habkost
2015-03-05 16:42   ` Igor Mammedov
2015-03-05 16:44     ` Andreas Färber
2015-03-05 16:48       ` Eduardo Habkost
2015-03-05 16:52 ` [Qemu-devel] [PATCH 0/6] target-i386: Remove side-effects from X86CPU::instance_init Eduardo Habkost

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