AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-25 00:20:53 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

KVM: x86: Fix CR3 reserved bits check in long mode

Browse Source 
Regression of 346874c9: PAE is set in long mode, but that does not mean
we have valid PDPTRs.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Jan Kiszka 2014-05-10 09:24:34 +02:00 committed by Paolo Bonzini
parent 87c00572ba
commit d9f89b88f5
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
arch/x86/kvm/x86.c
View File

@ -701,10 +701,11 @@ int kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
return 0;
}
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))
if (is_long_mode(vcpu)) {
if (cr3 & CR3_L_MODE_RESERVED_BITS)
return 1;
} else if (is_pae(vcpu) && is_paging(vcpu) &&
!load_pdptrs(vcpu, vcpu->arch.walk_mmu, cr3))
return 1;
vcpu->arch.cr3 = cr3;