Commit ce6bf703 authored Oct 10, 2024 by Sean Christopherson Committed by Paolo Bonzini Oct 25, 2024

KVM: Convert gfn_to_page() to use kvm_follow_pfn()



Convert gfn_to_page() to the new kvm_follow_pfn() internal API, which will
eventually allow removing gfn_to_pfn() and kvm_pfn_to_refcounted_page().

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20241010182427.1434605-76-seanjc@google.com>

parent ee0fa693

virt/kvm/kvm_main.c

+9 −7

Original line number	Diff line number	Diff line
		@@ -3139,14 +3139,16 @@ EXPORT_SYMBOL_GPL(kvm_prefetch_pages);
		*/
		struct page gfn_to_page(struct kvm kvm, gfn_t gfn)
		{
		kvm_pfn_t pfn;

		pfn = gfn_to_pfn(kvm, gfn);

		if (is_error_noslot_pfn(pfn))
		return NULL;
		struct page *refcounted_page = NULL;
		struct kvm_follow_pfn kfp = {
		.slot = gfn_to_memslot(kvm, gfn),
		.gfn = gfn,
		.flags = FOLL_WRITE,
		.refcounted_page = &refcounted_page,
		};

		return kvm_pfn_to_refcounted_page(pfn);
		(void)kvm_follow_pfn(&kfp);
		return refcounted_page;
		}
		EXPORT_SYMBOL_GPL(gfn_to_page);