diff options
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 25 |
1 files changed, 5 insertions, 20 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index bc4aaf68190c..e4ccc6cf4108 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -701,26 +701,11 @@ int kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3) return 0; } - if (is_long_mode(vcpu)) { - if (kvm_read_cr4_bits(vcpu, X86_CR4_PCIDE)) { - if (cr3 & CR3_PCID_ENABLED_RESERVED_BITS) - return 1; - } else - if (cr3 & CR3_L_MODE_RESERVED_BITS) - return 1; - } else { - if (is_pae(vcpu)) { - if (cr3 & CR3_PAE_RESERVED_BITS) - return 1; - if (is_paging(vcpu) && - !load_pdptrs(vcpu, vcpu->arch.walk_mmu, cr3)) - return 1; - } - /* - * We don't check reserved bits in nonpae mode, because - * this isn't enforced, and VMware depends on this. - */ - } + if (is_long_mode(vcpu) && (cr3 & CR3_L_MODE_RESERVED_BITS)) + return 1; + if (is_pae(vcpu) && is_paging(vcpu) && + !load_pdptrs(vcpu, vcpu->arch.walk_mmu, cr3)) + return 1; vcpu->arch.cr3 = cr3; __set_bit(VCPU_EXREG_CR3, (ulong *)&vcpu->arch.regs_avail); |