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micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="dVdFjdbROmPA0Gp+" Content-Disposition: inline In-Reply-To: X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: B0CF740031 X-Stat-Signature: ik6wyj3bmh843zwpekiqkukp4jpfhz84 X-Rspam-User: X-HE-Tag: 1738852338-933113 X-HE-Meta: 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 peg+0mRY YTy9r8FoZ/GUxm/MOIYCK4aRfx9rMRT9gqCoSVdyhzCLaiiKu8/51zBMfgIC8VfagSZv+rWSYNTUUoBl+pjcbZwS6rV52R/2RhE3lK1ORBmZejpm/J36yi0WjQUv2B1UNEI1n5ZOD5llVUcFBtjVgmC3f2CAp0dkP4lovEC8DkD7fCHUY8fuhRgSzAAPHn+Vhp31Z4xVq72DSi2pJEboYxiO29b1snbwX1ztOmkw9mFrAtl36f5CWpyMrFg== 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: --dVdFjdbROmPA0Gp+ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Thu, Feb 06, 2025 at 08:37:07AM -0500, Vivek Goyal wrote: > And then there are challenges at QEMU level. virtiofsd needs additional > vhost-user commands to implement DAX and these never went upstream in > QEMU. I hope these challenges are sorted at some point of time. Albert Esteve has been working on QEMU support: https://lore.kernel.org/qemu-devel/20240912145335.129447-1-aesteve@redhat.com/ He has a viable solution. I think the remaining issue is how to best structure the memory regions. The reason for slow progress is not because it can't be done, it's probably just because this is a background task. Please discuss with Albert if QEMU support is urgent. 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