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b=XW+qZSYiL1dNG9QlE3R1EnzuUzTuhxRlLVxkipuNvYyiYuc1kX1SybvfM2mTHY9Nxq 5oyj8CvYrS0EL+mmznR6e4Yye0yWBuYNZEmpZyHe430C2wkGQkpZ8bV0PAJrAcedQyB+ yh04033w3zauyIElga4V5AIxSWItI5nS/UadWQDp0GQ5it68bUFFnL1ioHpdJ0chA63x mc7+wHeqGWT4CNBfVKiQYDDiMmVmjQtENMiGlOHg+wqtO2t+RSeAiVl5OgE9HFqRc2wJ lS+OqCEWDS4JLLZ8ljXUpeZXoV+GzJgLLA9BQ0VKuq6FS4AjjAkC5FMsRId46y19DKrF Sy4w== X-Gm-Message-State: AOJu0YzIc4Jh0i2rLl7VBfAKALwgsfemq3lS6SkRM1SSom03eF1Fb16m UcN5tuUSgy+U1nODDeeicSOkbFDyoTRCZeO2lQeervWrSrLvoEHbnFdygppXRrcQ5CCMG0gpxJf z6A== X-Google-Smtp-Source: AGHT+IHVUYgAS8Gi1OfHaumBjOVs/68U//Xc3NGlK2wEye9l2w1SuCdDQ/WQfsMbBzqgGqsCESzcy3AUxv4= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:9d:3983:ac13:c240]) (user=seanjc job=sendgmr) by 2002:aa7:93b4:0:b0:71d:f64d:712c with SMTP id d2e1a72fcca58-71e1db65a16mr7365b3a.1.1728584851459; 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> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: 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_Benn=C3=A9e?= " , Yan Zhao , David Matlack , David Stevens , Andrew Jones 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 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 = NULL; + struct kvm_follow_pfn kfp = { + .slot = gfn_to_memslot(kvm, gfn), + .gfn = gfn, + .flags = FOLL_WRITE, + .refcounted_page = &refcounted_page, + }; - pfn = 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);