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From: Eduardo Habkost <ehabkost@redhat.com>
To: qemu-devel@nongnu.org, "Andreas Färber" <afaerber@suse.de>
Cc: Igor Mammedov <imammedo@redhat.com>, Jiri Denemark <jdenemar@redhat.com>
Subject: [Qemu-devel] [PATCH 3/7] target-i386: Move KVM default-vendor hack to instance_init
Date: Wed, 27 Nov 2013 17:34:05 -0200	[thread overview]
Message-ID: <1385580849-10777-4-git-send-email-ehabkost@redhat.com> (raw)
In-Reply-To: <1385580849-10777-1-git-send-email-ehabkost@redhat.com>

As we will not have a cpu_x86_find_by_name() function anymore,
move the KVM default-vendor hack to instance_init.

Unfortunately we can't move that code to class_init because it depends
on KVM being initialized.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
 target-i386/cpu.c | 32 +++++++++++++++++++-------------
 1 file changed, 19 insertions(+), 13 deletions(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index bfe2453..9bd6c20 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1560,18 +1560,6 @@ static int cpu_x86_find_by_name(X86CPU *cpu, x86_def_t *x86_cpu_def,
         def = &builtin_x86_defs[i];
         if (strcmp(name, def->name) == 0) {
             memcpy(x86_cpu_def, def, sizeof(*def));
-            /* sysenter isn't supported in compatibility mode on AMD,
-             * syscall isn't supported in compatibility mode on Intel.
-             * Normally we advertise the actual CPU vendor, but you can
-             * override this using the 'vendor' property if you want to use
-             * KVM's sysenter/syscall emulation in compatibility mode and
-             * when doing cross vendor migration
-             */
-            if (kvm_enabled()) {
-                uint32_t  ebx = 0, ecx = 0, edx = 0;
-                host_cpuid(0, 0, NULL, &ebx, &ecx, &edx);
-                x86_cpu_vendor_words2str(x86_cpu_def->vendor, ebx, edx, ecx);
-            }
             return 0;
         }
     }
@@ -1822,7 +1810,6 @@ static void cpu_x86_register(X86CPU *cpu, const char *name, Error **errp)
         return;
     }
 
-    object_property_set_str(OBJECT(cpu), def->vendor, "vendor", errp);
     object_property_set_int(OBJECT(cpu), def->level, "level", errp);
     object_property_set_int(OBJECT(cpu), def->family, "family", errp);
     object_property_set_int(OBJECT(cpu), def->model, "model", errp);
@@ -1846,6 +1833,25 @@ static void cpu_x86_register(X86CPU *cpu, const char *name, Error **errp)
         env->features[FEAT_KVM] |= kvm_default_features;
     }
     env->features[FEAT_1_ECX] |= CPUID_EXT_HYPERVISOR;
+
+    /* sysenter isn't supported in compatibility mode on AMD,
+     * syscall isn't supported in compatibility mode on Intel.
+     * Normally we advertise the actual CPU vendor, but you can
+     * override this using the 'vendor' property if you want to use
+     * KVM's sysenter/syscall emulation in compatibility mode and
+     * when doing cross vendor migration
+     */
+    const char *vendor = def->vendor;
+    char host_vendor[CPUID_VENDOR_SZ + 1];
+    if (kvm_enabled()) {
+        uint32_t  ebx = 0, ecx = 0, edx = 0;
+        host_cpuid(0, 0, NULL, &ebx, &ecx, &edx);
+        x86_cpu_vendor_words2str(host_vendor, ebx, edx, ecx);
+        vendor = host_vendor;
+    }
+
+    object_property_set_str(OBJECT(cpu), vendor, "vendor", errp);
+
 }
 
 X86CPU *cpu_x86_create(const char *cpu_model, DeviceState *icc_bridge,
-- 
1.8.3.1

  parent reply	other threads:[~2013-11-27 19:34 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-27 19:34 [Qemu-devel] [PATCH 0/7] x86 CPU subclasses, take 6 Eduardo Habkost
2013-11-27 19:34 ` [Qemu-devel] [PATCH 1/7] target-i386: Eliminate CONFIG_KVM #ifdefs Eduardo Habkost
2013-12-09 18:17   ` Paolo Bonzini
2013-12-10 18:55   ` [Qemu-devel] [PATCH 1/7 v2] " Eduardo Habkost
2013-12-11  1:36     ` Richard Henderson
2013-12-11 16:11       ` Eduardo Habkost
2013-12-11 16:31     ` [Qemu-devel] [PATCH 1/7 v3] " Eduardo Habkost
2013-11-27 19:34 ` [Qemu-devel] [PATCH 2/7] target-i386: Don't change x86_def_t struct on cpu_x86_register() Eduardo Habkost
2013-11-27 19:34 ` Eduardo Habkost [this message]
2013-11-27 19:34 ` [Qemu-devel] [PATCH 4/7] target-i386: Rename cpu_x86_register() to x86_cpu_load_def() Eduardo Habkost
2013-11-27 19:34 ` [Qemu-devel] [PATCH 5/7] target-i386: Call x86_cpu_load_def() earlier Eduardo Habkost
2013-11-27 19:34 ` [Qemu-devel] [PATCH 6/7] target-i386: Rename x86_def_t to X86CPUDefinition Eduardo Habkost
2013-11-27 19:34 ` [Qemu-devel] [RFC 7/7] target-i386: CPU model subclasses Eduardo Habkost
2013-12-09 18:07 ` [Qemu-devel] [PATCH 0/7] x86 CPU subclasses, take 6 Eduardo Habkost
2013-12-09 18:21   ` Paolo Bonzini

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