Message ID | 20240726235234.228822-84-seanjc@google.com (mailing list archive) |
---|---|
State | Handled Elsewhere, archived |
Headers | show
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charset="UTF-8" X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List <linuxppc-dev.lists.ozlabs.org> List-Unsubscribe: <https://lists.ozlabs.org/options/linuxppc-dev>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe> List-Archive: <http://lists.ozlabs.org/pipermail/linuxppc-dev/> List-Post: <mailto:linuxppc-dev@lists.ozlabs.org> List-Help: <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help> List-Subscribe: <https://lists.ozlabs.org/listinfo/linuxppc-dev>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe> Reply-To: Sean Christopherson <seanjc@google.com> Cc: kvm-riscv@lists.infradead.org, kvm@vger.kernel.org, linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, David Matlack <dmatlack@google.com>, David Stevens <stevensd@chromium.org>, loongarch@lists.linux.dev, kvmarm@lists.linux.dev, linux-riscv@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" <linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org> |
Series |
KVM: Stop grabbing references to PFNMAP'd pages
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expand
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Sean Christopherson <seanjc@google.com> writes: > Remove all kvm_{release,set}_pfn_*() APIs not that all users are gone. now? Otherwise: Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 34a1cadb1b80..87d61f16a449 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -1260,11 +1260,6 @@ static inline kvm_pfn_t kvm_faultin_pfn(struct kvm_vcpu *vcpu, gfn_t gfn, write ? FOLL_WRITE : 0, writable, refcounted_page); } -void kvm_release_pfn_clean(kvm_pfn_t pfn); -void kvm_release_pfn_dirty(kvm_pfn_t pfn); -void kvm_set_pfn_dirty(kvm_pfn_t pfn); -void kvm_set_pfn_accessed(kvm_pfn_t pfn); - int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset, int len); int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len); diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 030a08d4b21d..8b85e1130a63 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -3200,61 +3200,6 @@ void kvm_vcpu_unmap(struct kvm_vcpu *vcpu, struct kvm_host_map *map) } EXPORT_SYMBOL_GPL(kvm_vcpu_unmap); -void kvm_release_pfn_clean(kvm_pfn_t pfn) -{ - struct page *page; - - if (is_error_noslot_pfn(pfn)) - return; - - page = kvm_pfn_to_refcounted_page(pfn); - if (!page) - return; - - kvm_release_page_clean(page); -} -EXPORT_SYMBOL_GPL(kvm_release_pfn_clean); - -void kvm_release_pfn_dirty(kvm_pfn_t pfn) -{ - struct page *page; - - if (is_error_noslot_pfn(pfn)) - return; - - page = kvm_pfn_to_refcounted_page(pfn); - if (!page) - return; - - kvm_release_page_dirty(page); -} -EXPORT_SYMBOL_GPL(kvm_release_pfn_dirty); - -/* - * Note, checking for an error/noslot pfn is the caller's responsibility when - * directly marking a page dirty/accessed. Unlike the "release" helpers, the - * "set" helpers are not to be used when the pfn might point at garbage. - */ -void kvm_set_pfn_dirty(kvm_pfn_t pfn) -{ - if (WARN_ON(is_error_noslot_pfn(pfn))) - return; - - if (pfn_valid(pfn)) - kvm_set_page_dirty(pfn_to_page(pfn)); -} -EXPORT_SYMBOL_GPL(kvm_set_pfn_dirty); - -void kvm_set_pfn_accessed(kvm_pfn_t pfn) -{ - if (WARN_ON(is_error_noslot_pfn(pfn))) - return; - - if (pfn_valid(pfn)) - kvm_set_page_accessed(pfn_to_page(pfn)); -} -EXPORT_SYMBOL_GPL(kvm_set_pfn_accessed); - static int next_segment(unsigned long len, int offset) { if (len > PAGE_SIZE - offset)
Remove all kvm_{release,set}_pfn_*() APIs not that all users are gone. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> --- include/linux/kvm_host.h | 5 ---- virt/kvm/kvm_main.c | 55 ---------------------------------------- 2 files changed, 60 deletions(-)