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Mon, 30 Oct 2023 11:20:12 -0700 (PDT) MIME-Version: 1.0 References: <20231027182217.3615211-1-seanjc@google.com> <20231027182217.3615211-4-seanjc@google.com> In-Reply-To: From: David Matlack Date: Mon, 30 Oct 2023 11:19:43 -0700 Message-ID: Subject: Re: [PATCH v13 03/35] KVM: Use gfn instead of hva for mmu_notifier_retry To: Sean Christopherson Cc: Paolo Bonzini , Marc Zyngier , Oliver Upton , Huacai Chen , Michael Ellerman , Anup Patel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexander Viro , Christian Brauner , "Matthew Wilcox (Oracle)" , Andrew Morton , kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Xiaoyao Li , Xu Yilun , Chao Peng , Fuad Tabba , Jarkko Sakkinen , Anish Moorthy , Yu Zhang , Isaku Yamahata , =?UTF-8?B?TWlja2HDq2wgU2FsYcO8bg==?= , Vlastimil Babka , Vishal Annapurve , Ackerley Tng , Maciej Szmigiero , David Hildenbrand , Quentin Perret , Michael Roth , Wang , Liam Merwick , Isaku Yamahata , "Kirill A . Shutemov" Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Stat-Signature: bk17jc1z5n4cci9gjf8165ct6zku87rw X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: B5589A0004 X-Rspam-User: X-HE-Tag: 1698690014-827583 X-HE-Meta: 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 cTQUX2KS oV62izhfxcWo2wHgFKTpSAuQSRRzOMOfmwA2JsHJOke2FAGT32KMkEWWF8tzGZUcDuB8O+pU6VJ+ujf+ZLNSEXG6ZKnfSvoke2fISQS1wZO1w5ivMC6IwwQC94PjhFC8AU8DWJT77gIPullpJyFUYUPkYcAvqkJ/u/ToMl0VdrQ3/tWHKajIZ61MWfZZJXT/X+LrgZgGCadsJsLgObrDge8PMAEqpg1/Au9Acg0Jddus7VH9K8YzFZJmJPrsx/qOaktfOm25NNUbKGHKdK5zEcOh0O+nUFxGvpu/Hl3AvcgESgzO+WRpUCP5Ai/SfgbEU1l4O0bR6gyAj3tZiBA6Z30ce2+EZ5sL8a9+ZnbdpNl0X8aWGVzq5plmt/RpN3w5gahIab+yixEVeIw8= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Oct 30, 2023 at 9:53=E2=80=AFAM David Matlack = wrote: > > On 2023-10-27 11:21 AM, Sean Christopherson wrote: > > From: Chao Peng > > > > +void kvm_mmu_invalidate_range_add(struct kvm *kvm, gfn_t start, gfn_t = end); > > What is the reason to separate range_add() from begin()? Nevermind, I see how it's needed in kvm_mmu_unmap_gfn_range().