From 78b5605d44e65cb2e07181fcbcde8c76ad5b07b1 Mon Sep 17 00:00:00 2001 From: Mingwei Zhang Date: Tue, 12 Sep 2023 18:45:53 +0000 Subject: KVM: Documentation: Add the missing description for tdp_mmu_page into kvm_mmu_page 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 Reviewed-by: Kai Huang Link: https://lore.kernel.org/r/20230912184553.1887764-7-mizhang@google.com Signed-off-by: Sean Christopherson --- Documentation/virt/kvm/x86/mmu.rst | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'Documentation/virt') diff --git a/Documentation/virt/kvm/x86/mmu.rst b/Documentation/virt/kvm/x86/mmu.rst index d04729c180da..2b3b6d442302 100644 --- a/Documentation/virt/kvm/x86/mmu.rst +++ b/Documentation/virt/kvm/x86/mmu.rst @@ -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 =========== -- cgit v1.2.3