From: Sean Christopherson <seanjc@google.com>
To: Yan Zhao <yan.y.zhao@intel.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
pbonzini@redhat.com, chao.gao@intel.com, kai.huang@intel.com,
robert.hoo.linux@gmail.com
Subject: Re: [PATCH v3 04/11] KVM: x86/mmu: Use KVM honors guest MTRRs helper when update mtrr
Date: Wed, 28 Jun 2023 15:08:41 -0700 [thread overview]
Message-ID: <ZJyvaVVyxPmhvYph@google.com> (raw)
In-Reply-To: <20230616023614.7261-1-yan.y.zhao@intel.com>
On Fri, Jun 16, 2023, Yan Zhao wrote:
> Call helper to check if guest MTRRs are honored by KVM MMU before
> calculation and zapping.
Same comment here about stating the effect, not the literal code change.
> Guest MTRRs only affect TDP memtypes when TDP honors guest MTRRs, there's
> no meaning to do the calculation and zapping otherwise.
next prev parent reply other threads:[~2023-06-28 22:08 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-16 2:31 [PATCH v3 00/11] KVM: x86/mmu: refine memtype related mmu zap Yan Zhao
2023-06-16 2:32 ` [PATCH v3 01/11] KVM: x86/mmu: helpers to return if KVM honors guest MTRRs Yan Zhao
2023-06-16 2:34 ` [PATCH v3 02/11] KVM: x86/mmu: Use KVM honors guest MTRRs helper in kvm_tdp_page_fault() Yan Zhao
2023-06-16 2:35 ` [PATCH v3 03/11] KVM: x86/mmu: Use KVM honors guest MTRRs helper when CR0.CD toggles Yan Zhao
2023-06-28 21:59 ` Sean Christopherson
2023-06-29 1:42 ` Yan Zhao
2023-06-16 2:36 ` [PATCH v3 04/11] KVM: x86/mmu: Use KVM honors guest MTRRs helper when update mtrr Yan Zhao
2023-06-28 22:08 ` Sean Christopherson [this message]
2023-06-16 2:37 ` [PATCH v3 05/11] KVM: x86/mmu: zap KVM TDP when noncoherent DMA assignment starts/stops Yan Zhao
2023-06-16 2:37 ` [PATCH v3 06/11] KVM: x86/mmu: move TDP zaps from guest MTRRs update to CR0.CD toggling Yan Zhao
2023-06-16 2:38 ` [PATCH v3 07/11] KVM: VMX: drop IPAT in memtype when CD=1 for KVM_X86_QUIRK_CD_NW_CLEARED Yan Zhao
2023-06-20 2:42 ` Chao Gao
2023-06-20 2:34 ` Yan Zhao
2023-06-20 3:34 ` Chao Gao
2023-06-20 3:19 ` Yan Zhao
2023-06-25 7:14 ` Xiaoyao Li
2023-06-26 0:08 ` Yan Zhao
2023-06-26 3:40 ` Yuan Yao
2023-06-26 3:38 ` Yan Zhao
2023-06-20 3:17 ` Yan Zhao
2023-06-16 2:38 ` [PATCH v3 08/11] KVM: x86: move vmx code to get EPT memtype when CR0.CD=1 to x86 common code Yan Zhao
2023-06-28 22:57 ` Sean Christopherson
2023-06-29 0:55 ` Yan Zhao
2023-06-29 20:42 ` Sean Christopherson
2023-06-30 7:49 ` Yan Zhao
2023-07-14 7:00 ` Yan Zhao
2023-06-16 2:39 ` [PATCH v3 09/11] KVM: x86/mmu: serialize vCPUs to zap gfn when guest MTRRs are honored Yan Zhao
2023-06-16 7:45 ` Yuan Yao
2023-06-16 7:37 ` Yan Zhao
2023-06-16 8:09 ` Yuan Yao
2023-06-16 7:50 ` Yan Zhao
2023-06-28 23:00 ` Sean Christopherson
2023-06-29 1:51 ` Yan Zhao
2023-06-16 2:41 ` [PATCH v3 10/11] KVM: x86/mmu: fine-grained gfn zap " Yan Zhao
2023-06-16 2:42 ` [PATCH v3 11/11] KVM: x86/mmu: split a single gfn zap range " Yan Zhao
2023-06-28 23:02 ` [PATCH v3 00/11] KVM: x86/mmu: refine memtype related mmu zap Sean Christopherson
2023-07-14 7:11 ` Yan Zhao
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