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authorPeter Maydell <peter.maydell@linaro.org>2015-07-07 20:12:55 +0100
committerPeter Maydell <peter.maydell@linaro.org>2015-07-07 20:12:55 +0100
commit1a632032d1ea09a09dc424ac2b10a4a11cd52ab9 (patch)
treec2d9f0f3d53c571be847a5f4df90ed0f6d6e279f
parent30c6672aa4b4bc9bdba3a7e46c49bba191660143 (diff)
parent06ef227e5158cca6710e6c268d6a7f65a5e2811b (diff)
Merge remote-tracking branch 'remotes/ehabkost/tags/x86-pull-request' into staging
X86 queue, 2015-07-07 Patch "target-i386: emulate CPUID level of real hardware" was removed after the 2015-07-03 pull request. # gpg: Signature made Tue Jul 7 15:46:23 2015 BST using RSA key ID 984DC5A6 # gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" # gpg: WARNING: This key is not certified with sufficiently trusted signatures! # gpg: It is not certain that the signature belongs to the owner. # Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6 * remotes/ehabkost/tags/x86-pull-request: target-i386: avoid overflow in the tsc-frequency property i386: Introduce ARAT CPU feature Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r--include/hw/i386/pc.h7
-rw-r--r--target-i386/cpu.c33
-rw-r--r--target-i386/cpu.h5
-rw-r--r--target-i386/kvm.c2
4 files changed, 44 insertions, 3 deletions
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 786a1d511c..5daf854234 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -293,7 +293,12 @@ int e820_get_num_entries(void);
bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *);
#define PC_COMPAT_2_3 \
- HW_COMPAT_2_3
+ HW_COMPAT_2_3 \
+ {\
+ .driver = TYPE_X86_CPU,\
+ .property = "arat",\
+ .value = "off",\
+ },
#define PC_COMPAT_2_2 \
PC_COMPAT_2_3 \
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 36b07f99aa..b4f9461969 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -286,6 +286,17 @@ static const char *cpuid_xsave_feature_name[] = {
NULL, NULL, NULL, NULL,
};
+static const char *cpuid_6_feature_name[] = {
+ NULL, NULL, "arat", NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+};
+
#define I486_FEATURES (CPUID_FP87 | CPUID_VME | CPUID_PSE)
#define PENTIUM_FEATURES (I486_FEATURES | CPUID_DE | CPUID_TSC | \
CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_MMX | CPUID_APIC)
@@ -341,6 +352,7 @@ static const char *cpuid_xsave_feature_name[] = {
CPUID_7_0_EBX_ERMS, CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM,
CPUID_7_0_EBX_RDSEED */
#define TCG_APM_FEATURES 0
+#define TCG_6_EAX_FEATURES CPUID_6_EAX_ARAT
typedef struct FeatureWordInfo {
@@ -410,6 +422,11 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
.cpuid_reg = R_EAX,
.tcg_features = 0,
},
+ [FEAT_6_EAX] = {
+ .feat_names = cpuid_6_feature_name,
+ .cpuid_eax = 6, .cpuid_reg = R_EAX,
+ .tcg_features = TCG_6_EAX_FEATURES,
+ },
};
typedef struct X86RegisterInfo32 {
@@ -1003,6 +1020,8 @@ static X86CPUDefinition builtin_x86_defs[] = {
CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX,
.features[FEAT_8000_0001_ECX] =
CPUID_EXT3_LAHF_LM,
+ .features[FEAT_6_EAX] =
+ CPUID_6_EAX_ARAT,
.xlevel = 0x8000000A,
.model_id = "Westmere E56xx/L56xx/X56xx (Nehalem-C)",
},
@@ -1032,6 +1051,8 @@ static X86CPUDefinition builtin_x86_defs[] = {
CPUID_EXT3_LAHF_LM,
.features[FEAT_XSAVE] =
CPUID_XSAVE_XSAVEOPT,
+ .features[FEAT_6_EAX] =
+ CPUID_6_EAX_ARAT,
.xlevel = 0x8000000A,
.model_id = "Intel Xeon E312xx (Sandy Bridge)",
},
@@ -1064,6 +1085,8 @@ static X86CPUDefinition builtin_x86_defs[] = {
CPUID_EXT3_LAHF_LM,
.features[FEAT_XSAVE] =
CPUID_XSAVE_XSAVEOPT,
+ .features[FEAT_6_EAX] =
+ CPUID_6_EAX_ARAT,
.xlevel = 0x8000000A,
.model_id = "Intel Xeon E3-12xx v2 (Ivy Bridge)",
},
@@ -1098,6 +1121,8 @@ static X86CPUDefinition builtin_x86_defs[] = {
CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ERMS | CPUID_7_0_EBX_INVPCID,
.features[FEAT_XSAVE] =
CPUID_XSAVE_XSAVEOPT,
+ .features[FEAT_6_EAX] =
+ CPUID_6_EAX_ARAT,
.xlevel = 0x8000000A,
.model_id = "Intel Core Processor (Haswell, no TSX)",
}, {
@@ -1132,6 +1157,8 @@ static X86CPUDefinition builtin_x86_defs[] = {
CPUID_7_0_EBX_RTM,
.features[FEAT_XSAVE] =
CPUID_XSAVE_XSAVEOPT,
+ .features[FEAT_6_EAX] =
+ CPUID_6_EAX_ARAT,
.xlevel = 0x8000000A,
.model_id = "Intel Core Processor (Haswell)",
},
@@ -1168,6 +1195,8 @@ static X86CPUDefinition builtin_x86_defs[] = {
CPUID_7_0_EBX_SMAP,
.features[FEAT_XSAVE] =
CPUID_XSAVE_XSAVEOPT,
+ .features[FEAT_6_EAX] =
+ CPUID_6_EAX_ARAT,
.xlevel = 0x8000000A,
.model_id = "Intel Core Processor (Broadwell, no TSX)",
},
@@ -1204,6 +1233,8 @@ static X86CPUDefinition builtin_x86_defs[] = {
CPUID_7_0_EBX_SMAP,
.features[FEAT_XSAVE] =
CPUID_XSAVE_XSAVEOPT,
+ .features[FEAT_6_EAX] =
+ CPUID_6_EAX_ARAT,
.xlevel = 0x8000000A,
.model_id = "Intel Core Processor (Broadwell)",
},
@@ -2359,7 +2390,7 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
break;
case 6:
/* Thermal and Power Leaf */
- *eax = 0;
+ *eax = env->features[FEAT_6_EAX];
*ebx = 0;
*ecx = 0;
*edx = 0;
diff --git a/target-i386/cpu.h b/target-i386/cpu.h
index ac39291b48..14dced08a7 100644
--- a/target-i386/cpu.h
+++ b/target-i386/cpu.h
@@ -415,6 +415,7 @@ typedef enum FeatureWord {
FEAT_KVM, /* CPUID[4000_0001].EAX (KVM_CPUID_FEATURES) */
FEAT_SVM, /* CPUID[8000_000A].EDX */
FEAT_XSAVE, /* CPUID[EAX=0xd,ECX=1].EAX */
+ FEAT_6_EAX, /* CPUID[6].EAX */
FEATURE_WORDS,
} FeatureWord;
@@ -580,6 +581,8 @@ typedef uint32_t FeatureWordArray[FEATURE_WORDS];
#define CPUID_XSAVE_XGETBV1 (1U << 2)
#define CPUID_XSAVE_XSAVES (1U << 3)
+#define CPUID_6_EAX_ARAT (1U << 2)
+
/* CPUID[0x80000007].EDX flags: */
#define CPUID_APM_INVTSC (1U << 8)
@@ -959,7 +962,7 @@ typedef struct CPUX86State {
uint8_t has_error_code;
uint32_t sipi_vector;
bool tsc_valid;
- int tsc_khz;
+ int64_t tsc_khz;
void *kvm_xsave_buf;
uint64_t mcg_cap;
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 9038bf7077..066d03d99e 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -238,6 +238,8 @@ uint32_t kvm_arch_get_supported_cpuid(KVMState *s, uint32_t function,
if (!kvm_irqchip_in_kernel()) {
ret &= ~CPUID_EXT_X2APIC;
}
+ } else if (function == 6 && reg == R_EAX) {
+ ret |= CPUID_6_EAX_ARAT; /* safe to allow because of emulated APIC */
} else if (function == 0x80000001 && reg == R_EDX) {
/* On Intel, kvm returns cpuid according to the Intel spec,
* so add missing bits according to the AMD spec: