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| author | Mingwei Zhang <mizhang@google.com> | 2023-09-12 18:45:50 +0000 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2023-09-27 13:29:32 -0700 |
| commit | b40a2455e9ebdf32417e979f043c2830dd3fb3bb (patch) | |
| tree | 01f6c1a0354088ab0f5305be7359fea79f5ff781 /Documentation/virt | |
| parent | fdaca560b6c4c011d76d24e8a16cb43eae63b25f (diff) | |
| download | linux-b40a2455e9ebdf32417e979f043c2830dd3fb3bb.tar.gz | |
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 <mizhang@google.com>
Reviewed-by: Kai Huang <kai.huang@intel.com>
Link: https://lore.kernel.org/r/20230912184553.1887764-4-mizhang@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'Documentation/virt')
| -rw-r--r-- | Documentation/virt/kvm/x86/mmu.rst | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/virt/kvm/x86/mmu.rst b/Documentation/virt/kvm/x86/mmu.rst index eb632a24fda1c3..d5b08b4e8ff13f 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 |