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authorEduardo Habkost <ehabkost@redhat.com>2012-09-06 10:05:36 +0000
committerBlue Swirl <blauwirbel@gmail.com>2012-09-30 11:11:00 +0000
commit8fad4b44a0f71cd404f95f109657c0ccbf11f8f9 (patch)
tree319716bd1abf4434d51a6c41d9330bca6b292489
parentb1f4679392a03f2b26a37bfa52e95d6cc4f73d82 (diff)
downloadfocaccia-qemu-8fad4b44a0f71cd404f95f109657c0ccbf11f8f9.tar.gz
focaccia-qemu-8fad4b44a0f71cd404f95f109657c0ccbf11f8f9.zip
i386: kvm: use a #define for the set of alias feature bits
Instea of using a hardcoded hex constant, define CPUID_EXT2_AMD_ALIASES
as the set of CPUID[8000_0001].EDX bits that on AMD are the same as the
bits of CPUID[1].EDX.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-By: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Don Slutz <Don@CloudSwitch.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
-rw-r--r--target-i386/cpu.h12
-rw-r--r--target-i386/kvm.c2
2 files changed, 13 insertions, 1 deletions
diff --git a/target-i386/cpu.h b/target-i386/cpu.h
index d7ea2f92a8..49950843f6 100644
--- a/target-i386/cpu.h
+++ b/target-i386/cpu.h
@@ -409,6 +409,7 @@
 #define CPUID_EXT_HYPERVISOR  (1 << 31)
 
 #define CPUID_EXT2_FPU     (1 << 0)
+#define CPUID_EXT2_VME     (1 << 1)
 #define CPUID_EXT2_DE      (1 << 2)
 #define CPUID_EXT2_PSE     (1 << 3)
 #define CPUID_EXT2_TSC     (1 << 4)
@@ -436,6 +437,17 @@
 #define CPUID_EXT2_3DNOWEXT (1 << 30)
 #define CPUID_EXT2_3DNOW   (1 << 31)
 
+/* CPUID[8000_0001].EDX bits that are aliase of CPUID[1].EDX bits on AMD CPUs */
+#define CPUID_EXT2_AMD_ALIASES (CPUID_EXT2_FPU | CPUID_EXT2_VME | \
+                                CPUID_EXT2_DE | CPUID_EXT2_PSE | \
+                                CPUID_EXT2_TSC | CPUID_EXT2_MSR | \
+                                CPUID_EXT2_PAE | CPUID_EXT2_MCE | \
+                                CPUID_EXT2_CX8 | CPUID_EXT2_APIC | \
+                                CPUID_EXT2_MTRR | CPUID_EXT2_PGE | \
+                                CPUID_EXT2_MCA | CPUID_EXT2_CMOV | \
+                                CPUID_EXT2_PAT | CPUID_EXT2_PSE36 | \
+                                CPUID_EXT2_MMX | CPUID_EXT2_FXSR)
+
 #define CPUID_EXT3_LAHF_LM (1 << 0)
 #define CPUID_EXT3_CMP_LEG (1 << 1)
 #define CPUID_EXT3_SVM     (1 << 2)
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index acb93693b4..5b18383d8f 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -165,7 +165,7 @@ uint32_t kvm_arch_get_supported_cpuid(KVMState *s, uint32_t function,
                      * so add missing bits according to the AMD spec:
                      */
                     cpuid_1_edx = kvm_arch_get_supported_cpuid(s, 1, 0, R_EDX);
-                    ret |= cpuid_1_edx & 0x183f3ff;
+                    ret |= cpuid_1_edx & CPUID_EXT2_AMD_ALIASES;
                     break;
                 }
                 break;