[Qemu-devel] [PATCH v2 8/9] target-i386: Require APIC ID to be explicitly set before CPU realize

[Eduardo Habkost]

Instead of setting APIC ID automatically when creating a X86CPU, require
the property to be set before realizing the object (which all callers of
cpu_x86_create() already do).

Signed-off-by: Eduardo Habkost <address@hidden>
Cc: Gu Zheng <address@hidden>
---
 target-i386/cpu-qom.h | 2 +-
 target-i386/cpu.c     | 7 ++++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/target-i386/cpu-qom.h b/target-i386/cpu-qom.h
index 4a6f48a..31a0c1e 100644
--- a/target-i386/cpu-qom.h
+++ b/target-i386/cpu-qom.h
@@ -93,7 +93,7 @@ typedef struct X86CPU {
     bool expose_kvm;
     bool migratable;
     bool host_features;
-    uint32_t apic_id;
+    int64_t apic_id;
 
     /* if true the CPUID code directly forward host cache leaves to the guest 
*/
     bool cache_info_passthrough;
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index f17fd36..029bfff 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -2789,6 +2789,11 @@ static void x86_cpu_realizefn(DeviceState *dev, Error 
**errp)
     Error *local_err = NULL;
     static bool ht_warned;
 
+    if (cpu->apic_id < 0) {
+        error_setg(errp, "apic-id property was not initialized properly");
+        return;
+    }
+
     if (env->features[FEAT_7_0_EBX] && env->cpuid_level < 7) {
         env->cpuid_level = 7;
     }
@@ -2932,7 +2937,7 @@ static void x86_cpu_initfn(Object *obj)
                         NULL, NULL, (void *)cpu->filtered_features, NULL);
 
     cpu->hyperv_spinlock_attempts = HYPERV_SPINLOCK_NEVER_RETRY;
-    cpu->apic_id = x86_cpu_apic_id_from_index(cs->cpu_index);
+    cpu->apic_id = -1;
 
     x86_cpu_load_def(cpu, xcc->cpu_def, &error_abort);
 
-- 
2.1.0