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[99.254.121.117]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-6bb9c77099asm1039296d6.12.2024.08.01.15.12.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Aug 2024 15:12:26 -0700 (PDT) Date: Thu, 1 Aug 2024 18:12:23 -0400 From: Peter Xu To: James Houghton Cc: Paolo Bonzini , Marc Zyngier , Oliver Upton , James Morse , Suzuki K Poulose , Zenghui Yu , Sean Christopherson , Shuah Khan , Axel Rasmussen , David Matlack , kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev Subject: Re: [RFC PATCH 00/18] KVM: Post-copy live migration for guest_memfd Message-ID: References: <20240710234222.2333120-1-jthoughton@google.com> MIME-Version: 1.0 In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Disposition: inline X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240801_151233_950878_BC37430B X-CRM114-Status: GOOD ( 10.81 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Jul 10, 2024 at 04:48:36PM -0700, James Houghton wrote: > Ah, I put the wrong email for Peter! I'm so sorry! So I have a pure (and even stupid) question to ask before the rest of details.. it's pure question because I know little on guest_memfd, especially on the future plans. So.. Is there any chance guest_memfd can in the future provide 1G normal (!CoCo) pages? If yes, are these pages GUP-able, and mapp-able? Thanks, -- Peter Xu