From 957446afce22df9a42b9482fcd55985f4037fe66 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Fri, 10 Sep 2010 17:30:38 +0200 Subject: [PATCH] KVM: MMU: Check for root_level instead of long mode The walk_addr function checks for !is_long_mode in its 64 bit version. But what is meant here is a check for pae paging. Change the condition to really check for pae paging so that it also works with nested nested paging. Signed-off-by: Joerg Roedel Signed-off-by: Avi Kivity --- arch/x86/kvm/paging_tmpl.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h index debe77035366..e4ad3dc84df3 100644 --- a/arch/x86/kvm/paging_tmpl.h +++ b/arch/x86/kvm/paging_tmpl.h @@ -132,7 +132,7 @@ walk: walker->level = vcpu->arch.mmu.root_level; pte = vcpu->arch.cr3; #if PTTYPE == 64 - if (!is_long_mode(vcpu)) { + if (vcpu->arch.mmu.root_level == PT32E_ROOT_LEVEL) { pte = kvm_pdptr_read(vcpu, (addr >> 30) & 3); trace_kvm_mmu_paging_element(pte, walker->level); if (!is_present_gpte(pte)) { @@ -205,7 +205,7 @@ walk: (PTTYPE == 64 || is_pse(vcpu))) || ((walker->level == PT_PDPE_LEVEL) && is_large_pte(pte) && - is_long_mode(vcpu))) { + vcpu->arch.mmu.root_level == PT64_ROOT_LEVEL)) { int lvl = walker->level; walker->gfn = gpte_to_gfn_lvl(pte, lvl); -- 2.20.1