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From: Eduardo Habkost <ehabkost@redhat.com>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: "Paolo Bonzini" <pbonzini@redhat.com>,
	"Andreas Färber" <afaerber@suse.de>,
	qemu-devel@nongnu.org
Subject: [Qemu-devel] [PULL 3/7] target-i386: Eliminate unnecessary get_cpuid_vendor() function
Date: Mon,  9 Mar 2015 17:40:47 -0300	[thread overview]
Message-ID: <1425933651-20736-4-git-send-email-ehabkost@redhat.com> (raw)
In-Reply-To: <1425933651-20736-1-git-send-email-ehabkost@redhat.com>

The function was used in only two places. In one of them, the function
made the code less readable by requiring temporary te[bcd]x variables.
In the other one we can simply inline the existing code.

Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
 target-i386/cpu.c | 20 ++++++--------------
 1 file changed, 6 insertions(+), 14 deletions(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 80e9b9d..2f3a450 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -2213,14 +2213,6 @@ void x86_cpudef_setup(void)
     }
 }
 
-static void get_cpuid_vendor(CPUX86State *env, uint32_t *ebx,
-                             uint32_t *ecx, uint32_t *edx)
-{
-    *ebx = env->cpuid_vendor1;
-    *edx = env->cpuid_vendor2;
-    *ecx = env->cpuid_vendor3;
-}
-
 void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
                    uint32_t *eax, uint32_t *ebx,
                    uint32_t *ecx, uint32_t *edx)
@@ -2254,7 +2246,9 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
     switch(index) {
     case 0:
         *eax = env->cpuid_level;
-        get_cpuid_vendor(env, ebx, ecx, edx);
+        *ebx = env->cpuid_vendor1;
+        *edx = env->cpuid_vendor2;
+        *ecx = env->cpuid_vendor3;
         break;
     case 1:
         *eax = env->cpuid_version;
@@ -2447,11 +2441,9 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
          * So dont set it here for Intel to make Linux guests happy.
          */
         if (cs->nr_cores * cs->nr_threads > 1) {
-            uint32_t tebx, tecx, tedx;
-            get_cpuid_vendor(env, &tebx, &tecx, &tedx);
-            if (tebx != CPUID_VENDOR_INTEL_1 ||
-                tedx != CPUID_VENDOR_INTEL_2 ||
-                tecx != CPUID_VENDOR_INTEL_3) {
+            if (env->cpuid_vendor1 != CPUID_VENDOR_INTEL_1 ||
+                env->cpuid_vendor2 != CPUID_VENDOR_INTEL_2 ||
+                env->cpuid_vendor3 != CPUID_VENDOR_INTEL_3) {
                 *ecx |= 1 << 1;    /* CmpLegacy bit */
             }
         }
-- 
2.1.0

  parent reply	other threads:[~2015-03-09 20:41 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-09 20:40 [Qemu-devel] [PULL 0/7] X86 patches Eduardo Habkost
2015-03-09 20:40 ` [Qemu-devel] [PULL 1/7] target-i386: Move topology.h to include/hw/i386 Eduardo Habkost
2015-03-09 20:40 ` [Qemu-devel] [PULL 2/7] target-i386: Simplify listflags() function Eduardo Habkost
2015-03-09 20:40 ` Eduardo Habkost [this message]
2015-03-09 20:40 ` [Qemu-devel] [PULL 4/7] target-i386: Remove unused APIC ID default code Eduardo Habkost
2015-03-09 20:40 ` [Qemu-devel] [PULL 5/7] target-i386: Move CPUX86State::cpuid_apic_id to X86CPU::apic_id Eduardo Habkost
2015-03-09 20:40 ` [Qemu-devel] [PULL 6/7] target-i386: Move APIC ID compatibility code to pc.c Eduardo Habkost
2015-03-09 20:40 ` [Qemu-devel] [PULL 7/7] target-i386: Require APIC ID to be explicitly set before CPU realize Eduardo Habkost
2015-03-10 11:44 ` [Qemu-devel] [PULL 0/7] X86 patches Peter Maydell
2015-03-10 14:16   ` Eduardo Habkost
2015-03-10 14:19     ` Peter Maydell
2015-03-10 19:45       ` Eduardo Habkost
2015-03-11 12:50         ` Peter Maydell
2015-03-10 17:57     ` Eduardo Habkost

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