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KVM: Documentation: Add the missing description for tdp_mmu_page into kvm_mmu_page

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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>
Link: https://lore.kernel.org/r/20230912184553.1887764-7-mizhang@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This commit is contained in:
Mingwei Zhang 2023-09-12 18:45:53 +00:00 committed by Sean Christopherson
parent c3204c406b
commit 78b5605d44
1 changed files with 4 additions and 0 deletions
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4
Documentation/virt/kvm/x86/mmu.rst
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@ -282,6 +282,10 @@ 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.
Reverse map
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