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Diffstat (limited to 'Documentation/virtual/kvm/mmu.txt')
| -rw-r--r-- | Documentation/virtual/kvm/mmu.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/virtual/kvm/mmu.txt b/Documentation/virtual/kvm/mmu.txt index 481b6a9c25d5..f50d45b1e967 100644 --- a/Documentation/virtual/kvm/mmu.txt +++ b/Documentation/virtual/kvm/mmu.txt @@ -179,6 +179,10 @@ Shadow pages contain the following information: shadow page; it is also used to go back from a struct kvm_mmu_page to a memslot, through the kvm_memslots_for_spte_role macro and __gfn_to_memslot. + role.ad_disabled: + Is 1 if the MMU instance cannot use A/D bits. EPT did not have A/D + bits before Haswell; shadow EPT page tables also cannot use A/D bits + if the L1 hypervisor does not enable them. gfn: Either the guest page table containing the translations shadowed by this page, or the base page frame for linear translations. See role.direct. |