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KVM: x86/mmu: Use range-based TLB flush for dirty log memslot flush

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Use the with_address() variant when performing a TLB flush for a
specific memslot via kvm_arch_flush_remote_tlbs_memslot(), i.e. when
flushing after clearing dirty bits during KVM_{GET,CLEAR}_DIRTY_LOG.
This aligns all dirty log memslot-specific TLB flushes to use the
with_address() variant and paves the way for consolidating the relevant
code.

Note, moving to the with_address() variant only affects functionality
when running as a HyperV guest.

Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson
2020-02-18 13:07:35 -08:00
committed by Paolo Bonzini
parent b3594ffbf9
commit cec37648f4
1 changed files with 2 additions and 1 deletions
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3
arch/x86/kvm/mmu/mmu.c
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@@ -5942,7 +5942,8 @@ void kvm_arch_flush_remote_tlbs_memslot(struct kvm *kvm,
* kvm_mmu_slot_remove_write_access().
*/
lockdep_assert_held(&kvm->slots_lock);
kvm_flush_remote_tlbs(kvm);
kvm_flush_remote_tlbs_with_address(kvm, memslot->base_gfn,
memslot->npages);
}
void kvm_mmu_slot_leaf_clear_dirty(struct kvm *kvm,