diff options
| author | Peter Gonda <pgonda@google.com> | 2019-11-21 23:33:43 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-11-27 13:39:18 +0300 |
| commit | c1de0f25221c3abc7031fa482c109ccb079e7938 (patch) | |
| tree | ecd4c20f0029ae28f102211732f986c2185ce380 /arch/x86 | |
| parent | 96710247298df52a4b8150a62a6fe87083093ff3 (diff) | |
| download | linux-c1de0f25221c3abc7031fa482c109ccb079e7938.tar.xz | |
KVM x86: Move kvm cpuid support out of svm
Memory encryption support does not have module parameter dependencies
and can be moved into the general x86 cpuid __do_cpuid_ent function.
This changes maintains current behavior of passing through all of
CPUID.8000001F.
Suggested-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Peter Gonda <pgonda@google.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kvm/cpuid.c | 5 | ||||
| -rw-r--r-- | arch/x86/kvm/svm.c | 7 |
2 files changed, 5 insertions, 7 deletions
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index c0aa07487eb8..813a4d2e5c0c 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -778,6 +778,11 @@ static inline int __do_cpuid_func(struct kvm_cpuid_entry2 *entry, u32 function, case 0x8000001a: case 0x8000001e: break; + /* Support memory encryption cpuid if host supports it */ + case 0x8000001F: + if (!boot_cpu_has(X86_FEATURE_SEV)) + entry->eax = entry->ebx = entry->ecx = entry->edx = 0; + break; /*Add support for Centaur's CPUID instruction*/ case 0xC0000000: /*Just support up to 0xC0000004 now*/ diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 362e874297e4..122d4ce3b1ab 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -5958,13 +5958,6 @@ static void svm_set_supported_cpuid(u32 func, struct kvm_cpuid_entry2 *entry) if (npt_enabled) entry->edx |= F(NPT); - break; - case 0x8000001F: - /* Support memory encryption cpuid if host supports it */ - if (boot_cpu_has(X86_FEATURE_SEV)) - cpuid(0x8000001f, &entry->eax, &entry->ebx, - &entry->ecx, &entry->edx); - } } |