KVM: x86/mmu: Assert on @mmu in the __kvm_mmu_invalidate_addr()

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Add assertion to track that "mmu == vcpu->arch.mmu" is always true in the
context of __kvm_mmu_invalidate_addr(). for_each_shadow_entry_using_root()
and kvm_sync_spte() operate on vcpu->arch.mmu, but the only reason that
doesn't cause explosions is because handle_invept() frees roots instead of
doing a manual invalidation.  As of now, there are no major roadblocks
to switching INVEPT emulation over to use kvm_mmu_invalidate_addr().

Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Like Xu <likexu@tencent.com>
Link: https://lore.kernel.org/r/20230523032947.60041-1-likexu@tencent.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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Like Xu 2023-05-23 11:29:47 +08:00 • committed by Sean Christopherson

parent 12ced09595

commit 762b33eb90

1 changed files with 8 additions and 0 deletions

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arch/x86/kvm/mmu/mmu.c

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