Revision e8beac00
| b/target-i386/cpu.c | ||
|---|---|---|
| 148 | 148 |
typedef struct model_features_t {
|
| 149 | 149 |
uint32_t *guest_feat; |
| 150 | 150 |
uint32_t *host_feat; |
| 151 |
uint32_t check_feat; |
|
| 152 | 151 |
const char **flag_names; |
| 153 | 152 |
uint32_t cpuid; |
| 154 | 153 |
int reg; |
| ... | ... | |
| 945 | 944 |
} |
| 946 | 945 |
|
| 947 | 946 |
/* best effort attempt to inform user requested cpu flags aren't making |
| 948 |
* their way to the guest. Note: ft[].check_feat ideally should be |
|
| 949 |
* specified via a guest_def field to suppress report of extraneous flags. |
|
| 947 |
* their way to the guest. |
|
| 950 | 948 |
* |
| 951 | 949 |
* This function may be called only if KVM is enabled. |
| 952 | 950 |
*/ |
| ... | ... | |
| 957 | 955 |
int rv, i; |
| 958 | 956 |
struct model_features_t ft[] = {
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| 959 | 957 |
{&guest_def->features, &host_def.features,
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~0, feature_name, 0x00000001, R_EDX},
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feature_name, 0x00000001, R_EDX}, |
|
| 961 | 959 |
{&guest_def->ext_features, &host_def.ext_features,
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~0, ext_feature_name, 0x00000001, R_ECX},
|
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ext_feature_name, 0x00000001, R_ECX}, |
|
| 963 | 961 |
{&guest_def->ext2_features, &host_def.ext2_features,
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~0, ext2_feature_name, 0x80000001, R_EDX},
|
|
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ext2_feature_name, 0x80000001, R_EDX}, |
|
| 965 | 963 |
{&guest_def->ext3_features, &host_def.ext3_features,
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~0, ext3_feature_name, 0x80000001, R_ECX}
|
|
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ext3_feature_name, 0x80000001, R_ECX} |
|
| 967 | 965 |
}; |
| 968 | 966 |
|
| 969 | 967 |
assert(kvm_enabled()); |
| ... | ... | |
| 971 | 969 |
kvm_cpu_fill_host(&host_def); |
| 972 | 970 |
for (rv = 0, i = 0; i < ARRAY_SIZE(ft); ++i) |
| 973 | 971 |
for (mask = 1; mask; mask <<= 1) |
| 974 |
if (ft[i].check_feat & mask && *ft[i].guest_feat & mask &&
|
|
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if (*ft[i].guest_feat & mask && |
|
| 975 | 973 |
!(*ft[i].host_feat & mask)) {
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| 976 | 974 |
unavailable_host_feature(&ft[i], mask); |
| 977 | 975 |
rv = 1; |
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