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[v3,6/6] KVM: Documentation: Add the missing description for tdp_mmu_page into kvm_mmu_page

Message ID 20230801002127.534020-7-mizhang@google.com
State New
Headers
Series Update document description for kvm_mmu_page and kvm_mmu_page_role |

Commit Message

Mingwei Zhang Aug. 1, 2023, 12:21 a.m. UTC 
  Add the description for tdp_mmu_page into kvm_mmu_page description.
tdp_mmu_page is a field to differentiate shadow pages from TDP MMU and
non-TDP MMU.

Signed-off-by: Mingwei Zhang <mizhang@google.com>
Reviewed-by: Kai Huang <kai.huang@intel.com>
---
 Documentation/virt/kvm/x86/mmu.rst | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/virt/kvm/x86/mmu.rst b/Documentation/virt/kvm/x86/mmu.rst
index 581e53fa00a2..3be646a6daf5 100644
--- a/Documentation/virt/kvm/x86/mmu.rst
+++ b/Documentation/virt/kvm/x86/mmu.rst
@@ -283,6 +283,10 @@  Shadow pages contain the following information:
     since the last time the page table was actually used; if emulation
     is triggered too frequently on this page, KVM will unmap the page
     to avoid emulation in the future.
+  tdp_mmu_page:
+    Is 1 if the shadow page is a TDP MMU page. This variable is used to
+    bifurcate the control flows for KVM when walking any data structure that may
+    contain pages from both TDP MMU and shadow MMU.
 
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