Messages in this thread Patch in this message | | | Date | Tue, 1 Aug 2023 00:21:23 +0000 | Subject | [PATCH v3 3/6] KVM: Documentation: Add the missing description for ptep in kvm_mmu_page | From | Mingwei Zhang <> |
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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 <mizhang@google.com> Reviewed-by: Kai Huang <kai.huang@intel.com> --- Documentation/virt/kvm/x86/mmu.rst | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/Documentation/virt/kvm/x86/mmu.rst b/Documentation/virt/kvm/x86/mmu.rst index 35e642303962..17d90974204e 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 -- 2.41.0.585.gd2178a4bd4-goog
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