| Date | Mon, 18 Sep 2023 12:53:22 +0300 | Subject | Re: [PATCH v9 6/6] KVM: x86/mmu: Handle non-refcounted pages | From | Dmitry Osipenko <> |
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On 9/11/23 05:16, David Stevens wrote: > --- a/arch/x86/kvm/mmu/paging_tmpl.h > +++ b/arch/x86/kvm/mmu/paging_tmpl.h > @@ -848,7 +848,8 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault > > out_unlock: > write_unlock(&vcpu->kvm->mmu_lock); > - kvm_release_pfn_clean(fault->pfn); > + if (fault->is_refcounted_page) > + kvm_set_page_accessed(pfn_to_page(fault->pfn));
The other similar occurrences in the code that replaced kvm_release_pfn_clean() with kvm_set_page_accessed() did it under the held mmu_lock.
Does kvm_set_page_accessed() needs to be invoked under the lock?
-- Best regards, Dmitry
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