Merge remote-tracking branch 'remotes/ehabkost/tags/x86-pull-request' into staging

X86 fixes

# gpg: Signature made Mon 14 Mar 2016 20:26:25 GMT using RSA key ID 984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"

* remotes/ehabkost/tags/x86-pull-request:
  kvm: Remove x2apic feature from CPU model when kernel_irqchip is off
  hyperv: cpu hotplug fix with HyperV enabled
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

target-i386/cpu.c

@@ -2132,6 +2132,10 @@ static void x86_cpu_load_def(X86CPU *cpu, X86CPUDefinition *def, Error **errp)
 
     /* Special cases not set in the X86CPUDefinition structs: */
     if (kvm_enabled()) {
+        if (!kvm_irqchip_in_kernel()) {
+            x86_cpu_change_kvm_default("x2apic", "off");
+        }
+
         x86_cpu_apply_props(cpu, kvm_default_props);
     }
 

target-i386/kvm.c

@@ -639,6 +639,7 @@ int kvm_arch_init_vcpu(CPUState *cs)
         if (cpu->hyperv_crash && has_msr_hv_crash) {
             c->edx |= HV_X64_GUEST_CRASH_MSR_AVAILABLE;
         }
+        c->edx |= HV_X64_CPU_DYNAMIC_PARTITIONING_AVAILABLE;
         if (cpu->hyperv_reset && has_msr_hv_reset) {
             c->eax |= HV_X64_MSR_RESET_AVAILABLE;
         }