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@xxxxxxxxxxxxx https://lore.kernel.org/all/20230331071929.102070-1-haiwenyao@xxxxxxxxxxxxx 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
