From: Mingwei Zhang Date: Tue, 12 Sep 2023 18:45:50 +0000 (+0000) Subject: KVM: Documentation: Add the missing description for ptep in kvm_mmu_page X-Git-Tag: v6.7-rc1~92^2~6^2~4 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b40a2455e9ebdf32417e979f043c2830dd3fb3bb;p=thirdparty%2Fkernel%2Flinux.git 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 --- diff --git a/Documentation/virt/kvm/x86/mmu.rst b/Documentation/virt/kvm/x86/mmu.rst index eb632a24fda1c..d5b08b4e8ff13 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