From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail05.groups.io (mail05.groups.io [45.79.224.7]) by spool.mail.gandi.net (Postfix) with ESMTPS id 1E02C780091 for ; Fri, 20 Jun 2025 20:56:32 +0000 (UTC) DKIM-Signature: a=rsa-sha256; bh=+sNXjepaeWiv0RKiUG0oYeih0FpuvfAEGwuQUgSMgp0=; c=relaxed/simple; d=groups.io; h=Subject:To:From:User-Agent:MIME-Version:Date:References:In-Reply-To:Message-ID:Precedence:List-Subscribe:List-Help:Sender:List-Id:Mailing-List:Delivered-To:Reply-To:List-Unsubscribe-Post:List-Unsubscribe:Content-Type; s=groups1; t=1750452992; v=1; x=1750712191; b=utsFValBinQQKw72xZsh1aapKsxj3ZdtOOHI89lOWMGjO25/JkwPw/EBU8Kc4aHicPIHMTKE rrAfxLOhX3Ms7ll+B/VpRqH7sRTCMsBAocvL8qtNIGnEvVl7YQ+zQk0WEt5lwx0wnu3WKoZQ3Om lAZeyffpP7QRy4LYoqxowK7Wn7YvPn4Rdi2nRtId2558k7/E1tZQuohJRs//4v1tLoyAbwPZpXA jN1GjFwaadgMGez9z9ag8nX/ZPnLnL7/RCAk/OMLpnnAR+wMvmswAlJV7xhssg1pSK7xirU2Nab 5RErWrQSiCVxGca4tqT+naxneoZYY57G8pW8t5hok4lHA== X-Received: by 127.0.0.2 with SMTP id QcQqYY7687511x3WrhFCdxvJ; Fri, 20 Jun 2025 13:56:31 -0700 Subject: Re: [edk2-devel] [BUG] Extremely slow boot times with CPU and GPU passthrough and host phys-bits > 40 To: mitchell.augustin@canonical.com, devel@edk2.groups.io From: "mitchell.augustin via groups.io" X-Originating-Location: Chesterfield, Missouri, US (155.186.62.78) X-Originating-Platform: Linux Chrome 137 User-Agent: GROUPS.IO Web Poster MIME-Version: 1.0 Date: Fri, 20 Jun 2025 13:56:30 -0700 References: <7915.1741826983661245062@groups.io> In-Reply-To: <7915.1741826983661245062@groups.io> Message-ID: <6626.1750452990604434401@groups.io> Precedence: Bulk List-Subscribe: List-Help: Sender: devel@edk2.groups.io List-Id: Mailing-List: list devel@edk2.groups.io; contact devel+owner@edk2.groups.io Reply-To: devel@edk2.groups.io,mitchell.augustin@canonical.com List-Unsubscribe-Post: List-Unsubscribe=One-Click List-Unsubscribe: X-Gm-Message-State: Q9iAKsYZnB8PX3hZyuYryKeUx7686176AA= Content-Type: multipart/alternative; boundary="EkpYABZcHqVhuuPVWMUG" X-GND-Status: LEGIT Authentication-Results: spool.mail.gandi.net; dkim=pass header.d=groups.io header.s=groups1 header.b=utsFValB; dmarc=pass (policy=none) header.from=groups.io; spf=pass (spool.mail.gandi.net: domain of bounce@groups.io designates 45.79.224.7 as permitted sender) smtp.mailfrom=bounce@groups.io --EkpYABZcHqVhuuPVWMUG Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Info for Ubuntu users who may read this thread in the future: The root cause of the slowness is now fixed ( https://lore.kernel.org/all/2= 0250218222209.1382449-1-alex.williamson@redhat.com/ ) in the mainline kerne= l, so this issue should not impact Ubuntu 25.04 Plucky Puffin or future Ubu= ntu releases once that fix ( https://bugs.launchpad.net/ubuntu/+source/linu= x/+bug/2111861 ) is released to our Ubuntu kernels. (expected to release in= the Ubuntu stable kernels in mid-July 2025) Ubuntu 24.04 Noble Numbat (LTS) now contains this patch ( https://github.co= m/tianocore/edk2/pull/10856 ) in its ovmf, so Noble users experiencing this= issue can now apply the fw_cfg workaround described here ( https://bugs.la= unchpad.net/ubuntu/+source/edk2/+bug/2101903 ) to their VMs to achieve much= faster boot times with large GPU passthrough. Thanks, Mitchell Augustin -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#121427): https://edk2.groups.io/g/devel/message/121427 Mute This Topic: https://groups.io/mt/109651206/7686176 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [rebecca@openfw.io] -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- --EkpYABZcHqVhuuPVWMUG Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable
Info for Ubuntu users who may read this thread in the future:
 
The root cause of the slowness is now fixed in the mainline kernel, so this issue should= not impact Ubuntu 25.04 Plucky Puffin or future Ubuntu releases once that fix is released to our Ubuntu kernels= . (expected to release in the Ubuntu stable kernels in mid-July 2025)
 
Ubuntu 24.04 Noble Numbat (LTS) now contains this pat= ch in its ovmf, so Noble users experien= cing this issue can now apply the fw_cfg workaround described here to t= heir VMs to achieve much faster boot times with large GPU passthrough.
 
Thanks,
Mitchell Augustin
_._,_._,_
Groups.io Links:

=20 You receive all messages sent to this group. =20 =20

View/Reply Online (#121427) | =20 | Mute= This Topic | New Topic
Your Subscriptio= n | Contact Group Owner | Unsubscribe [rebecca@openfw.io]

_._,_._,_
--EkpYABZcHqVhuuPVWMUG--