Clean up VMX's MSR passthrough code, in particular the portion that deals with userspace MSR filters (KVM needs to force interception if userspace wants to intercept even if KVM wants to passthrough). As pointed out by Dongli, KVM does a linear walk twice in quick succession, which is wasteful, confuing, and unnecessarily brittle. Same exact idea as Dongli's v1[*], just a different approach to cleaning up the API for dealing with MSR filters. v2: Combine "check and get" into a single API instead of adding an out param. Dongli Zhang (2): KVM: VMX: fix comment to add LBR to passthrough MSRs KVM: VMX: return early if msr_bitmap is not supported Sean Christopherson (1): KVM: VMX: Combine "check" and "get" APIs for passthrough MSR lookups arch/x86/kvm/vmx/vmx.c | 68 ++++++++++++++++++------------------------ 1 file changed, 29 insertions(+), 39 deletions(-) base-commit: ec1e3d33557babed2c2c2c7da6e84293c2f56f58 -- 2.44.0.rc0.258.g7320e95886-goog
