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[34.125.199.175]) by smtp.gmail.com with ESMTPSA id fb17-20020a056a002d9100b006b1e8f17b85sm1451493pfb.201.2023.10.31.09.43.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 31 Oct 2023 09:43:39 -0700 (PDT) Date: Tue, 31 Oct 2023 09:43:32 -0700 From: David Matlack 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 , =?iso-8859-1?Q?Micka=EBl_Sala=FCn?= , Vlastimil Babka , Vishal Annapurve , Ackerley Tng , Maciej Szmigiero , David Hildenbrand , Quentin Perret , Michael Roth , Wang , Liam Merwick , Isaku Yamahata , "Kirill A . Shutemov" Subject: Re: [PATCH v13 13/35] KVM: Introduce per-page memory attributes Message-ID: References: <20231027182217.3615211-1-seanjc@google.com> <20231027182217.3615211-14-seanjc@google.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20231027182217.3615211-14-seanjc@google.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231031_094344_154330_AECB835E X-CRM114-Status: GOOD ( 13.07 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 2023-10-27 11:21 AM, Sean Christopherson wrote: > From: Chao Peng > > diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h > index 89c1a991a3b8..df573229651b 100644 > --- a/include/linux/kvm_host.h > +++ b/include/linux/kvm_host.h > @@ -808,6 +809,9 @@ struct kvm { > > #ifdef CONFIG_HAVE_KVM_PM_NOTIFIER > struct notifier_block pm_notifier; > +#endif > +#ifdef CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES > + struct xarray mem_attr_array; Please document how access to mem_attr_array is synchronized. If I'm reading the code correctly I think it's... /* Protected by slots_locks (for writes) and RCU (for reads) */ _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel