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From: Sean Christopherson <seanjc@google.com>
To: Sean Christopherson <seanjc@google.com>,
	Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	Wenyao Hai <haiwenyao@uniontech.com>,
	Ke Guo <guoke@uniontech.com>
Subject: [PATCH 0/5] KVM: x86: Clean up MSR PAT handling
Date: Wed,  3 May 2023 11:28:47 -0700	[thread overview]
Message-ID: <20230503182852.3431281-1-seanjc@google.com> (raw)

Clean up KVM's handling of MSR PAT.  The PAT is currently lumped in with
MTRRs, and while the PAT does affect memtypes, it's not an MTRR and is even
exempted from KVM's kludgy attempts to play nice with UC memory for guests
with passthrough devices that have non-coherent DMA.

Note, this includes two previously posted patches:

  https://lore.kernel.org/all/20230329081859.2571698-1-guoke@uniontech.com
  https://lore.kernel.org/all/20230331071929.102070-1-haiwenyao@uniontech.com

Ke Guo (1):
  KVM: SVM: Use kvm_pat_valid() directly instead of kvm_mtrr_valid()

Sean Christopherson (3):
  KVM: x86: Use MTRR macros to define possible MTRR MSR ranges
  KVM: x86: WARN if writes to PAT MSR are handled by common KVM code
  KVM: x86: Move PAT MSR handling out of mtrr.c

Wenyao Hai (1):
  KVM: VMX: Open code writing vCPU's PAT in VMX's MSR handler

 arch/x86/kvm/mtrr.c    | 20 ++++++--------------
 arch/x86/kvm/svm/svm.c |  2 +-
 arch/x86/kvm/vmx/vmx.c |  8 +++-----
 arch/x86/kvm/x86.c     | 18 ++++++++++++++----
 4 files changed, 24 insertions(+), 24 deletions(-)


base-commit: 5c291b93e5d665380dbecc6944973583f9565ee5
-- 
2.40.1.495.gc816e09b53d-goog


             reply	other threads:[~2023-05-03 18:29 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-03 18:28 Sean Christopherson [this message]
2023-05-03 18:28 ` [PATCH 1/5] KVM: VMX: Open code writing vCPU's PAT in VMX's MSR handler Sean Christopherson
2023-05-03 23:00   ` Huang, Kai
2023-05-03 23:25     ` Sean Christopherson
2023-05-03 23:41       ` Huang, Kai
2023-05-04 17:23         ` Sean Christopherson
2023-05-03 18:28 ` [PATCH 2/5] KVM: SVM: Use kvm_pat_valid() directly instead of kvm_mtrr_valid() Sean Christopherson
2023-05-03 23:04   ` Huang, Kai
2023-05-04 15:34     ` Sean Christopherson
2023-05-05 11:20       ` Huang, Kai
2023-05-11 23:03         ` Sean Christopherson
2023-05-03 18:28 ` [PATCH 3/5] KVM: x86: Use MTRR macros to define possible MTRR MSR ranges Sean Christopherson
2023-05-03 23:23   ` Huang, Kai
2023-05-03 23:36     ` Sean Christopherson
2023-05-03 23:49       ` Huang, Kai
2023-05-04  9:02   ` Yan Zhao
2023-05-04 15:36     ` Sean Christopherson
2023-05-03 18:28 ` [PATCH 4/5] KVM: x86: WARN if writes to PAT MSR are handled by common KVM code Sean Christopherson
2023-05-03 23:26   ` Huang, Kai
2023-05-03 23:38     ` Sean Christopherson
2023-05-03 18:28 ` [PATCH 5/5] KVM: x86: Move PAT MSR handling out of mtrr.c Sean Christopherson

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