From b40a2455e9ebdf32417e979f043c2830dd3fb3bb Mon Sep 17 00:00:00 2001 From: Mingwei Zhang Date: Tue, 12 Sep 2023 18:45:50 +0000 Subject: KVM: Documentation: Add the missing description for ptep in kvm_mmu_page Add the missing description for ptep in kvm_mmu_page description. ptep is used when TDP MMU is enabled and it shares the storage with parent_ptes. Update the doc to help readers to get up-to-date info. Signed-off-by: Mingwei Zhang Reviewed-by: Kai Huang Link: https://lore.kernel.org/r/20230912184553.1887764-4-mizhang@google.com Signed-off-by: Sean Christopherson --- Documentation/virt/kvm/x86/mmu.rst | 3 +++ 1 file changed, 3 insertions(+) (limited to 'Documentation/virt') diff --git a/Documentation/virt/kvm/x86/mmu.rst b/Documentation/virt/kvm/x86/mmu.rst index eb632a24fda1..d5b08b4e8ff1 100644 --- a/Documentation/virt/kvm/x86/mmu.rst +++ b/Documentation/virt/kvm/x86/mmu.rst @@ -239,6 +239,9 @@ Shadow pages contain the following information: parent_ptes points at this single spte, otherwise, there exists multiple sptes pointing at this page and (parent_ptes & ~0x1) points at a data structure with a list of parent sptes. + ptep: + The kernel virtual address of the SPTE that points at this shadow page. + Used exclusively by the TDP MMU, this field is a union with parent_ptes. unsync: If true, then the translations in this page may not match the guest's translation. This is equivalent to the state of the tlb when a pte is -- cgit v1.2.3