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
next prev 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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