i386 return APIC ID with cpuid, by Bernhard Kauer.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2591 c046a42c-6fe2-441c-8c8c-71466251a162

hw/apic.c

@@ -816,6 +816,7 @@ int apic_init(CPUState *env)
     env->apic_state = s;
     apic_init_ipi(s);
     s->id = last_apic_id++;
+    env->cpuid_apic_id = s->id;
     s->cpu_env = env;
     s->apicbase = 0xfee00000 | 
         (s->id ? 0 : MSR_IA32_APICBASE_BSP) | MSR_IA32_APICBASE_ENABLE;

target-i386/cpu.h

@@ -530,6 +530,7 @@ typedef struct CPUX86State {
     uint32_t cpuid_xlevel;
     uint32_t cpuid_model[12];
     uint32_t cpuid_ext2_features;
+    uint32_t cpuid_apic_id;
     
 #ifdef USE_KQEMU
     int kqemu_enabled;

target-i386/helper.c

@@ -1653,7 +1653,7 @@ void helper_cpuid(void)
         break;
     case 1:
         EAX = env->cpuid_version;
-        EBX = 8 << 8; /* CLFLUSH size in quad words, Linux wants it. */
+        EBX = (env->cpuid_apic_id << 24) | 8 << 8; /* CLFLUSH size in quad words, Linux wants it. */
         ECX = env->cpuid_ext_features;
         EDX = env->cpuid_features;
         break;