[Qemu-devel] [PATCH v2 4/4] target-i386: Add Hypervisor CPUIDs in accel=tcg mode.

[Don Slutz]

Signed-off-by: Don Slutz <address@hidden>
---
 target-i386/cpu.c |   33 +++++++++++++++++++++++++++++++++
 1 files changed, 33 insertions(+), 0 deletions(-)

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 9f1f390..89a45b5 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1815,6 +1815,16 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, 
uint32_t count,
                 index =  env->cpuid_xlevel;
             }
         }
+    } else if (index & 0x40000000) {
+        if (env->cpuid_hv_level > 0) {
+            /* Handle Hypervisor CPUIDs */
+            if (index > env->cpuid_hv_level) {
+                index = env->cpuid_hv_level;
+            }
+        } else {
+            if (index > env->cpuid_level)
+                index = env->cpuid_level;
+        }
     } else {
         if (index > env->cpuid_level)
             index = env->cpuid_level;
@@ -1953,6 +1963,29 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, 
uint32_t count,
             *edx = 0;
         }
         break;
+    case 0x40000000:
+        *eax = env->cpuid_hv_level;
+        *ebx = env->cpuid_hv_vendor1;
+        *ecx = env->cpuid_hv_vendor2;
+        *edx = env->cpuid_hv_vendor3;
+        break;
+    case 0x40000001:
+        *eax = env->cpuid_kvm_features;
+        *ebx = 0;
+        *ecx = 0;
+        *edx = 0;
+        break;
+    case 0x40000002 ... 0x400000FF:
+        if (index == env->cpuid_hv_extra) {
+            *eax = env->cpuid_hv_extra_a;
+            *ebx = env->cpuid_hv_extra_b;
+        } else {
+            *eax = 0;
+            *ebx = 0;
+        }
+        *ecx = 0;
+        *edx = 0;
+        break;
     case 0x80000000:
         *eax = env->cpuid_xlevel;
         *ebx = env->cpuid_vendor1;
-- 
1.7.1