KVM: x86/mmu: Move fast_cr3_switch() side effects to __kvm_mmu_new_cr3()

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Handle the side effects of a fast CR3 (PGD) switch up a level in
__kvm_mmu_new_cr3(), which is the only caller of fast_cr3_switch().

This consolidates handling all side effects in __kvm_mmu_new_cr3()
(where freeing the current root when KVM can't do a fast switch is
already handled), and ameliorates the pain of adding a second boolean in
a future patch to provide a separate "skip" override for the MMU sync.

Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200320212833.3507-31-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2020-03-20 14:28:26 -07:00 • committed by Paolo Bonzini

parent 4de1f9d469

commit b869855bad

1 changed files with 31 additions and 38 deletions

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arch/x86/kvm/mmu/mmu.c

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