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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-14 16:21:28 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-14 16:21:28 -0700 |
| commit | 55101e2d6ce1c780f6ee8fee5f37306971aac6cd (patch) | |
| tree | 348adcfd97517ee9b5041f31df15cdd7fedb8ea7 /arch/x86/kvm/cpuid.h | |
| parent | dafe344d2288f0ebc0e3d4c6a5eb15bc82189c53 (diff) | |
| parent | b351c39cc9e0151cee9b8d52a1e714928faabb38 (diff) | |
| download | op-kernel-dev-55101e2d6ce1c780f6ee8fee5f37306971aac6cd.zip op-kernel-dev-55101e2d6ce1c780f6ee8fee5f37306971aac6cd.tar.gz | |
Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Marcelo Tosatti:
- Fix for guest triggerable BUG_ON (CVE-2014-0155)
- CR4.SMAP support
- Spurious WARN_ON() fix
* git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: remove WARN_ON from get_kernel_ns()
KVM: Rename variable smep to cr4_smep
KVM: expose SMAP feature to guest
KVM: Disable SMAP for guests in EPT realmode and EPT unpaging mode
KVM: Add SMAP support when setting CR4
KVM: Remove SMAP bit from CR4_RESERVED_BITS
KVM: ioapic: try to recover if pending_eoi goes out of range
KVM: ioapic: fix assignment of ioapic->rtc_status.pending_eoi (CVE-2014-0155)
Diffstat (limited to 'arch/x86/kvm/cpuid.h')
| -rw-r--r-- | arch/x86/kvm/cpuid.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h index a2a1bb7..eeecbed 100644 --- a/arch/x86/kvm/cpuid.h +++ b/arch/x86/kvm/cpuid.h @@ -48,6 +48,14 @@ static inline bool guest_cpuid_has_smep(struct kvm_vcpu *vcpu) return best && (best->ebx & bit(X86_FEATURE_SMEP)); } +static inline bool guest_cpuid_has_smap(struct kvm_vcpu *vcpu) +{ + struct kvm_cpuid_entry2 *best; + + best = kvm_find_cpuid_entry(vcpu, 7, 0); + return best && (best->ebx & bit(X86_FEATURE_SMAP)); +} + static inline bool guest_cpuid_has_fsgsbase(struct kvm_vcpu *vcpu) { struct kvm_cpuid_entry2 *best; |
