[02/16] KVM-HV: KVM - KVM Virtual Memory hypervisor implementation

Commit Message

Glauber Costa Jan. 24, 2011, 6:06 p.m. UTC

None

Patch

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index bcc0efc..6206fd3 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1538,6 +1538,14 @@  int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data)
 		if (kvm_pv_enable_async_pf(vcpu, data))
 			return 1;
 		break;
+	case MSR_KVM_REGISTER_MEM_AREA: {
+		struct kvm_memory_area area_desc;
+
+		kvm_read_guest(vcpu->kvm, data, &area_desc, sizeof(area_desc));
+		area_desc.result = 0xF;
+		kvm_write_guest(vcpu->kvm, data, &area_desc, sizeof(area_desc));
+		break;
+	}
 	case MSR_IA32_MCG_CTL:
 	case MSR_IA32_MCG_STATUS:
 	case MSR_IA32_MC0_CTL ... MSR_IA32_MC0_CTL + 4 * KVM_MAX_MCE_BANKS - 1:
@@ -2391,6 +2399,7 @@  static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
 		entry->eax = (1 << KVM_FEATURE_CLOCKSOURCE) |
 			     (1 << KVM_FEATURE_NOP_IO_DELAY) |
 			     (1 << KVM_FEATURE_CLOCKSOURCE2) |
+			     (1 << KVM_FEATURE_MEMORY_AREA) |
 			     (1 << KVM_FEATURE_CLOCKSOURCE_STABLE_BIT);
 		entry->ebx = 0;
 		entry->ecx = 0;