Fir direct maps, root_gfn or cr3 are meaningless. This hasn't bitten us because no sane guest sets cr3 outside its own memory even in real mode.
Signed-off-by: Avi Kivity <[email protected]> --- arch/x86/kvm/mmu.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 6e925b3..e3acc9e 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -2083,7 +2083,7 @@ static int mmu_alloc_roots(struct kvm_vcpu *vcpu) } else root_gfn = vcpu->arch.cr3 >> PAGE_SHIFT; - if (mmu_check_root(vcpu, root_gfn)) + if (!direct && mmu_check_root(vcpu, root_gfn)) return 1; sp = kvm_mmu_get_page(vcpu, root_gfn, i << 30, PT32_ROOT_LEVEL, direct, -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
