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Thu, 10 Oct 2024 11:27:31 -0700 (PDT) Reply-To: Sean Christopherson Date: Thu, 10 Oct 2024 11:24:17 -0700 In-Reply-To: <20241010182427.1434605-1-seanjc@google.com> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Post: List-Subscribe: , , List-Unsubscribe: Mime-Version: 1.0 References: <20241010182427.1434605-1-seanjc@google.com> X-Mailer: git-send-email 2.47.0.rc1.288.g06298d1525-goog Message-ID: <20241010182427.1434605-76-seanjc@google.com> Subject: [PATCH v13 75/85] KVM: Convert gfn_to_page() to use kvm_follow_pfn() From: Sean Christopherson To: Paolo Bonzini , Marc Zyngier , Oliver Upton , Tianrui Zhao , Bibo Mao , Huacai Chen , Michael Ellerman , Anup Patel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Sean Christopherson Cc: kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, "=?UTF-8?q?Alex=20Benn=C3=A9e?=" , Yan Zhao , David Matlack , David Stevens , Andrew Jones Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable 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 Benn=C3=A9e Signed-off-by: Sean Christopherson --- virt/kvm/kvm_main.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 696d5e429b3e..1782242a4800 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -3145,14 +3145,16 @@ EXPORT_SYMBOL_GPL(kvm_prefetch_pages); */ struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn) { - kvm_pfn_t pfn; + struct page *refcounted_page =3D NULL; + struct kvm_follow_pfn kfp =3D { + .slot =3D gfn_to_memslot(kvm, gfn), + .gfn =3D gfn, + .flags =3D FOLL_WRITE, + .refcounted_page =3D &refcounted_page, + }; =20 - pfn =3D gfn_to_pfn(kvm, gfn); - - if (is_error_noslot_pfn(pfn)) - return NULL; - - return kvm_pfn_to_refcounted_page(pfn); + (void)kvm_follow_pfn(&kfp); + return refcounted_page; } EXPORT_SYMBOL_GPL(gfn_to_page); =20 --=20 2.47.0.rc1.288.g06298d1525-goog