KVM: x86/mmu: Batch TLB flushes from TDP MMU for MMU notifier change_spte

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Batch TLB flushes (with other MMUs) when handling ->change_spte()
notifications in the TDP MMU.  The MMU notifier path in question doesn't
allow yielding and correcty flushes before dropping mmu_lock.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Ben Gardon <bgardon@google.com>
Message-Id: <20220226001546.360188-9-seanjc@google.com>
Reviewed-by: Mingwei Zhang <mizhang@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2022-02-26 00:15:26 +00:00 • committed by Paolo Bonzini

parent c8e5a0d0e9

commit 93fa50f644

1 changed files with 6 additions and 7 deletions

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arch/x86/kvm/mmu/tdp_mmu.c

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