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[Qemu-devel] [RFC 23/25] target-i386: Move accelerator-specific code out
From: |
Eduardo Habkost |
Subject: |
[Qemu-devel] [RFC 23/25] target-i386: Move accelerator-specific code outside X86CPU.instance_init |
Date: |
Wed, 9 Jul 2014 19:04:20 -0300 |
The code will be changed to use the accelerator object, so it has to be
outside instance_init (which can't get any extra parameters).
Signed-off-by: Eduardo Habkost <address@hidden>
---
target-i386/cpu.c | 61 +++++++++++++++++++++++++++++++------------------------
1 file changed, 34 insertions(+), 27 deletions(-)
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 428ced3..406ce02 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1968,8 +1968,6 @@ static int x86_cpu_filter_features(X86CPU *cpu)
static void x86_cpu_load_def(X86CPU *cpu, X86CPUDefinition *def, Error **errp)
{
CPUX86State *env = &cpu->env;
- const char *vendor;
- char host_vendor[CPUID_VENDOR_SZ + 1];
FeatureWord w;
object_property_set_int(OBJECT(cpu), def->level, "level", errp);
@@ -1977,6 +1975,7 @@ static void x86_cpu_load_def(X86CPU *cpu,
X86CPUDefinition *def, Error **errp)
object_property_set_int(OBJECT(cpu), def->model, "model", errp);
object_property_set_int(OBJECT(cpu), def->stepping, "stepping", errp);
object_property_set_int(OBJECT(cpu), def->xlevel, "xlevel", errp);
+ object_property_set_str(OBJECT(cpu), def->vendor, "vendor", errp);
env->cpuid_xlevel2 = def->xlevel2;
cpu->cache_info_passthrough = def->cache_info_passthrough;
object_property_set_str(OBJECT(cpu), def->model_id, "model-id", errp);
@@ -1985,32 +1984,46 @@ static void x86_cpu_load_def(X86CPU *cpu,
X86CPUDefinition *def, Error **errp)
}
/* Special cases not set in the X86CPUDefinition structs: */
+ env->features[FEAT_1_ECX] |= CPUID_EXT_HYPERVISOR;
+}
+
+/* Accelerator-specific initialization code, to be called immediately after
+ * creation of the X86CPU object, and before x86_cpu_parse_featurestr().
+ */
+static void x86_cpu_accel_init(X86CPU *cpu, Error **errp)
+{
+ CPUX86State *env = &cpu->env;
+ static int inited;
+
if (kvm_enabled()) {
+ char host_vendor[CPUID_VENDOR_SZ + 1];
+ uint32_t ebx = 0, ecx = 0, edx = 0;
FeatureWord w;
for (w = 0; w < FEATURE_WORDS; w++) {
env->features[w] |= kvm_default_features[w];
env->features[w] &= ~kvm_default_unset_features[w];
}
- }
- 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
- */
- vendor = def->vendor;
- if (kvm_enabled()) {
- uint32_t ebx = 0, ecx = 0, edx = 0;
+ /* 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
+ */
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), host_vendor, "vendor", errp);
}
- object_property_set_str(OBJECT(cpu), vendor, "vendor", errp);
+ /* init various static tables used in TCG mode */
+ if (tcg_enabled() && !inited) {
+ inited = 1;
+ optimize_flags_init();
+#ifndef CONFIG_USER_ONLY
+ cpu_set_debug_excp_handler(breakpoint_handler);
+#endif
+ }
}
@@ -2045,6 +2058,10 @@ X86CPU *cpu_x86_create(const char *cpu_model,
DeviceState *icc_bridge,
}
cpu = X86_CPU(object_new(object_class_get_name(oc)));
+ x86_cpu_accel_init(cpu, &error);
+ if (error) {
+ goto out;
+ }
#ifndef CONFIG_USER_ONLY
if (icc_bridge == NULL) {
@@ -2777,7 +2794,6 @@ 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);
@@ -2820,15 +2836,6 @@ static void x86_cpu_initfn(Object *obj)
env->cpuid_apic_id = x86_cpu_apic_id_from_index(cs->cpu_index);
x86_cpu_load_def(cpu, xcc->cpu_def, &error_abort);
-
- /* init various static tables used in TCG mode */
- if (tcg_enabled() && !inited) {
- inited = 1;
- optimize_flags_init();
-#ifndef CONFIG_USER_ONLY
- cpu_set_debug_excp_handler(breakpoint_handler);
-#endif
- }
}
static int64_t x86_cpu_get_arch_id(CPUState *cs)
--
1.9.3
- [Qemu-devel] [RFC 10/25] accel: Move qtest accel registration to qtest.c, (continued)
- [Qemu-devel] [RFC 10/25] accel: Move qtest accel registration to qtest.c, Eduardo Habkost, 2014/07/09
- [Qemu-devel] [RFC 11/25] accel: Remove tcg_available() function, Eduardo Habkost, 2014/07/09
- [Qemu-devel] [RFC 13/25] accel: Rename 'init' method to 'init_machine', Eduardo Habkost, 2014/07/09
- [Qemu-devel] [RFC 14/25] accel: Pass MachineState object to accel init functions, Eduardo Habkost, 2014/07/09
- [Qemu-devel] [RFC 12/25] accel: Move accel init/allowed code to separate function, Eduardo Habkost, 2014/07/09
- [Qemu-devel] [RFC 16/25] accel: Save AccelState on MachineState when initializing, Eduardo Habkost, 2014/07/09
- [Qemu-devel] [RFC 15/25] accel: Create accel object when initializing machine, Eduardo Habkost, 2014/07/09
- [Qemu-devel] [RFC 17/25] kvm: Make KVMState be the TYPE_KVM_ACCEL instance struct, Eduardo Habkost, 2014/07/09
- [Qemu-devel] [RFC 20/25] accel: TYPE_X86_ACCEL interface, Eduardo Habkost, 2014/07/09
- [Qemu-devel] [RFC 24/25] target-i386: Accept "host" as value for CPU vendor, Eduardo Habkost, 2014/07/09
- [Qemu-devel] [RFC 23/25] target-i386: Move accelerator-specific code outside X86CPU.instance_init,
Eduardo Habkost <=
- [Qemu-devel] [RFC 18/25] accel: Get target name as argument when initializing accelerator, Eduardo Habkost, 2014/07/09
- [Qemu-devel] [RFC 25/25] target-i386: Move KVM CPUID hacking to accelerator cpu_post_init hook, Eduardo Habkost, 2014/07/10
- [Qemu-devel] [RFC 21/25] kvm: x86 KVM accelerator subclass, Eduardo Habkost, 2014/07/10
- [Qemu-devel] [RFC 19/25] accel: Use target-specific accel class if available, Eduardo Habkost, 2014/07/10
- [Qemu-devel] [RFC 22/25] target-i386: Add AccelState parameter to cpu_x86_create(), Eduardo Habkost, 2014/07/10