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([2001:b07:6468:f312:c8dd:75d4:99ab:290a]) by smtp.googlemail.com with ESMTPSA id c11sm10989913wmq.48.2021.12.23.15.09.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 23 Dec 2021 15:09:53 -0800 (PST) Message-ID: Date: Fri, 24 Dec 2021 00:09:47 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.2.0 Subject: Re: [PATCH v3 kvm/queue 06/16] KVM: Implement fd-based memory using MEMFD_OPS interfaces Content-Language: en-US To: Sean Christopherson , Chao Peng Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, qemu-devel@nongnu.org, Jonathan Corbet , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, "H . Peter Anvin" , Hugh Dickins , Jeff Layton , "J . Bruce Fields" , Andrew Morton , Yu Zhang , "Kirill A . Shutemov" , luto@kernel.org, john.ji@intel.com, susie.li@intel.com, jun.nakajima@intel.com, dave.hansen@intel.com, ak@linux.intel.com, david@redhat.com References: <20211223123011.41044-1-chao.p.peng@linux.intel.com> <20211223123011.41044-7-chao.p.peng@linux.intel.com> From: Paolo Bonzini In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: F033014003A X-Stat-Signature: 8hzswqz7qwnrazzs6hc418ubk7ugini3 Authentication-Results: imf26.hostedemail.com; dkim=pass header.d=gmail.com header.s=20210112 header.b=ehxbIBRA; spf=pass (imf26.hostedemail.com: domain of paolo.bonzini@gmail.com designates 209.85.128.44 as permitted sender) smtp.mailfrom=paolo.bonzini@gmail.com; dmarc=fail reason="SPF not aligned (relaxed), DKIM not aligned (relaxed)" header.from=redhat.com (policy=none) X-HE-Tag: 1640300994-899791 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: On 12/23/21 19:34, Sean Christopherson wrote: >> select HAVE_KVM_PM_NOTIFIER if PM >> + select MEMFD_OPS > MEMFD_OPS is a weird Kconfig name given that it's not just memfd() that can > implement the ops. > Or, it's kvm that implements them to talk to memfd? Paolo