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| author | Nadav Amit <namit@cs.technion.ac.il> | 2014-09-16 15:10:03 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-09-24 14:07:48 +0200 |
| commit | dd598091de4aabbc8bd7290a04f364e443c03455 (patch) | |
| tree | 72123be86eb587d26b0bce0cca474aa05d3a2555 /arch/x86/kvm/cpuid.h | |
| parent | 3c3c29fd0d7cddc32862c350d0700ce69953e3bd (diff) | |
| download | linux-dd598091de4aabbc8bd7290a04f364e443c03455.tar.bz2 | |
KVM: x86: Warn if guest virtual address space is not 48-bits
The KVM emulator code assumes that the guest virtual address space (in 64-bit)
is 48-bits wide. Fail the KVM_SET_CPUID and KVM_SET_CPUID2 ioctl if
userspace tries to create a guest that does not obey this restriction.
Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/cpuid.h')
| -rw-r--r-- | arch/x86/kvm/cpuid.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h index 43b33e301e68..4452eedfaedd 100644 --- a/arch/x86/kvm/cpuid.h +++ b/arch/x86/kvm/cpuid.h @@ -3,7 +3,7 @@ #include "x86.h" -void kvm_update_cpuid(struct kvm_vcpu *vcpu); +int kvm_update_cpuid(struct kvm_vcpu *vcpu); struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu, u32 function, u32 index); int kvm_dev_ioctl_get_cpuid(struct kvm_cpuid2 *cpuid, |