On Sun, 2023-06-18 at 00:08 +0000, Mingwei Zhang wrote: > Add 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. When TDP MMU is > enabled, sp->tdp_mmu_page=1 indicates a shadow page for L1, while > sp->tdp_mmu_page=0 indicates a shadow page for an L2. When TDP MMU is > disabled, sp->tdp_mmu_page is always 0. So update the doc to reflect the > information. > > Signed-off-by: Mingwei Zhang <mizhang@xxxxxxxxxx> > --- > Documentation/virt/kvm/x86/mmu.rst | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/Documentation/virt/kvm/x86/mmu.rst b/Documentation/virt/kvm/x86/mmu.rst > index 0dbdb7fb8cc6..cbad49c37629 100644 > --- a/Documentation/virt/kvm/x86/mmu.rst > +++ b/Documentation/virt/kvm/x86/mmu.rst > @@ -277,6 +277,10 @@ 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. When TDP MMU is disabled, > + this field is always 0. > + > Hmm.. Again I think "TDP MMU is disabled" is a little bit confusing, but maybe it's only me having this impression. I think you can just delete the second sentence.
