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[99.254.114.190]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-46e1030dffesm57967601cf.41.2025.01.21.12.59.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 Jan 2025 12:59:56 -0800 (PST) Date: Tue, 21 Jan 2025 15:59:53 -0500 From: Peter Xu To: David Hildenbrand Cc: Michael Roth , qemu-devel@nongnu.org, kvm@vger.kernel.org, Tom Lendacky , Paolo Bonzini , Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= , Markus Armbruster , Pankaj Gupta , Xiaoyao Li , Isaku Yamahata Subject: Re: [PATCH v3 07/49] HostMem: Add mechanism to opt in kvm guest memfd via MachineState Message-ID: References: <20240320083945.991426-1-michael.roth@amd.com> <20240320083945.991426-8-michael.roth@amd.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: On Tue, Jan 21, 2025 at 09:41:55PM +0100, David Hildenbrand wrote: > So far my understanding is that Google that does shared+private guest_memfd > kernel part won't be working on QEMU patches. I raised that to our > management recently, that this would be a good project for RH to focus on. > > I am not aware of real implementations of the guest_memfd backend (yet). I see, thanks, those are pretty useful information to me. I think I have a rough picture now. Since I've already had some patches going that direction, I'll give it a shot. I'll keep you updated if I get something. -- Peter Xu