mmu->get_guest_pgd()'s implementation is get_cr3(), clear the LAM bits for root_pgd, which needs a pure address, plus (possible) PCID info (low 12 bits). Signed-off-by: Robert Hoo <robert.hu@xxxxxxxxxxxxxxx> --- arch/x86/kvm/mmu/mmu.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index 835426254e76..1d61dfe37c77 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -3698,8 +3698,11 @@ static int mmu_alloc_shadow_roots(struct kvm_vcpu *vcpu) gfn_t root_gfn, root_pgd; int quadrant, i, r; hpa_t root; - +#ifdef CONFIG_X86_64 + root_pgd = mmu->get_guest_pgd(vcpu) & ~(X86_CR3_LAM_U48 | X86_CR3_LAM_U57); +#else root_pgd = mmu->get_guest_pgd(vcpu); +#endif root_gfn = root_pgd >> PAGE_SHIFT; if (mmu_check_root(vcpu, root_gfn)) -- 2.31.1
