diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kvm/cpuid.c | 30 |
1 files changed, 14 insertions, 16 deletions
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index 2e852a87bb69..a46e882ed3bd 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -298,6 +298,20 @@ static void do_cpuid_1_ent(struct kvm_cpuid_entry2 *entry, u32 function, cpuid_count(entry->function, entry->index, &entry->eax, &entry->ebx, &entry->ecx, &entry->edx); + + switch (function) { + case 2: + entry->flags |= KVM_CPUID_FLAG_STATEFUL_FUNC; + break; + case 4: + case 7: + case 0xb: + case 0xd: + case 0x14: + case 0x8000001d: + entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX; + break; + } } static int __do_cpuid_func_emulated(struct kvm_cpuid_entry2 *entry, @@ -497,14 +511,12 @@ static inline int __do_cpuid_func(struct kvm_cpuid_entry2 *entry, u32 function, case 2: { int t, times = entry->eax & 0xff; - entry->flags |= KVM_CPUID_FLAG_STATEFUL_FUNC; entry->flags |= KVM_CPUID_FLAG_STATE_READ_NEXT; for (t = 1; t < times; ++t) { if (*nent >= maxnent) goto out; do_cpuid_1_ent(&entry[t], function, 0); - entry[t].flags |= KVM_CPUID_FLAG_STATEFUL_FUNC; ++*nent; } break; @@ -514,7 +526,6 @@ static inline int __do_cpuid_func(struct kvm_cpuid_entry2 *entry, u32 function, case 0x8000001d: { int i, cache_type; - entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX; /* read more entries until cache_type is zero */ for (i = 1; ; ++i) { if (*nent >= maxnent) @@ -524,8 +535,6 @@ static inline int __do_cpuid_func(struct kvm_cpuid_entry2 *entry, u32 function, if (!cache_type) break; do_cpuid_1_ent(&entry[i], function, i); - entry[i].flags |= - KVM_CPUID_FLAG_SIGNIFCANT_INDEX; ++*nent; } break; @@ -540,7 +549,6 @@ static inline int __do_cpuid_func(struct kvm_cpuid_entry2 *entry, u32 function, case 7: { int i; - entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX; for (i = 0; ; ) { do_cpuid_7_mask(&entry[i], i); if (i == entry->eax) @@ -550,8 +558,6 @@ static inline int __do_cpuid_func(struct kvm_cpuid_entry2 *entry, u32 function, ++i; do_cpuid_1_ent(&entry[i], function, i); - entry[i].flags |= - KVM_CPUID_FLAG_SIGNIFCANT_INDEX; ++*nent; } break; @@ -595,7 +601,6 @@ static inline int __do_cpuid_func(struct kvm_cpuid_entry2 *entry, u32 function, case 0xb: { int i, level_type; - entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX; /* read more entries until level_type is zero */ for (i = 1; ; ++i) { if (*nent >= maxnent) @@ -605,8 +610,6 @@ static inline int __do_cpuid_func(struct kvm_cpuid_entry2 *entry, u32 function, if (!level_type) break; do_cpuid_1_ent(&entry[i], function, i); - entry[i].flags |= - KVM_CPUID_FLAG_SIGNIFCANT_INDEX; ++*nent; } break; @@ -619,7 +622,6 @@ static inline int __do_cpuid_func(struct kvm_cpuid_entry2 *entry, u32 function, entry->ebx = xstate_required_size(supported, false); entry->ecx = entry->ebx; entry->edx &= supported >> 32; - entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX; if (!supported) break; @@ -645,8 +647,6 @@ static inline int __do_cpuid_func(struct kvm_cpuid_entry2 *entry, u32 function, } entry[i].ecx = 0; entry[i].edx = 0; - entry[i].flags |= - KVM_CPUID_FLAG_SIGNIFCANT_INDEX; ++*nent; ++i; } @@ -659,12 +659,10 @@ static inline int __do_cpuid_func(struct kvm_cpuid_entry2 *entry, u32 function, if (!f_intel_pt) break; - entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX; for (t = 1; t <= times; ++t) { if (*nent >= maxnent) goto out; do_cpuid_1_ent(&entry[t], function, t); - entry[t].flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX; ++*nent; } break; |