KVM: VMX: Smush x2APIC MSR bitmap adjustments into single function

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Consolidate all of the dynamic MSR bitmap adjustments into
vmx_update_msr_bitmap_x2apic(), and rename the mode tracker to reflect
that it is x2APIC specific.  If KVM gains more cases of dynamic MSR
pass-through, odds are very good that those new cases will be better off
with their own logic, e.g. see Intel PT MSRs and MSR_IA32_SPEC_CTRL.

Attempting to handle all updates in a common helper did more harm than
good, as KVM ended up collecting a large number of useless "updates".

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210713163324.627647-42-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2021-07-13 09:33:19 -07:00 • committed by Paolo Bonzini

parent e7c701dd7a

commit 84ec8d2d53

2 changed files with 22 additions and 35 deletions

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55

arch/x86/kvm/vmx/vmx.c

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2

arch/x86/kvm/vmx/vmx.h

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