From: Mingwei Zhang <mizhang@google.com>
To: Sean Christopherson <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, Mingwei Zhang <mizhang@google.com>,
Kai Huang <kai.huang@intel.com>,
Jim Mattson <jmattson@google.com>,
David Matlack <dmatlack@google.com>,
Ben Gardon <bgardon@google.com>, Xu Yilun <yilun.xu@intel.com>,
Zhi Wang <zhi.wang.linux@gmail.com>,
Randy Dunlap <rdunlap@infradead.org>
Subject: [PATCH v4 3/6] KVM: Documentation: Add the missing description for ptep in kvm_mmu_page
Date: Tue, 12 Sep 2023 18:45:50 +0000 [thread overview]
Message-ID: <20230912184553.1887764-4-mizhang@google.com> (raw)
In-Reply-To: <20230912184553.1887764-1-mizhang@google.com>
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>
---
Documentation/virt/kvm/x86/mmu.rst | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/virt/kvm/x86/mmu.rst b/Documentation/virt/kvm/x86/mmu.rst
index f659f282357d..22d221c180d7 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
--
2.42.0.283.g2d96d420d3-goog
next prev parent reply other threads:[~2023-09-12 18:46 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-12 18:45 [PATCH v4 0/6] Update document description for kvm_mmu_page and kvm_mmu_page_role Mingwei Zhang
2023-09-12 18:45 ` [PATCH v4 1/6] KVM: Documentation: Add the missing description for guest_mode in kvm_mmu_page_role Mingwei Zhang
2023-09-12 18:45 ` [PATCH v4 2/6] KVM: Documentation: Update the field name gfns and its description in kvm_mmu_page Mingwei Zhang
2023-09-12 18:45 ` Mingwei Zhang [this message]
2023-09-12 18:45 ` [PATCH v4 4/6] KVM: Documentation: Add the missing description for tdp_mmu_root_count into kvm_mmu_page Mingwei Zhang
2023-09-12 18:45 ` [PATCH v4 5/6] KVM: Documentation: Add the missing description for mmu_valid_gen " Mingwei Zhang
2023-09-12 18:45 ` [PATCH v4 6/6] KVM: Documentation: Add the missing description for tdp_mmu_page " Mingwei Zhang
2023-09-28 16:40 ` [PATCH v4 0/6] Update document description for kvm_mmu_page and kvm_mmu_page_role Sean Christopherson
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