From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by mx.groups.io with SMTP id smtpd.web11.19326.1670429107715849411 for ; Wed, 07 Dec 2022 08:05:08 -0800 Authentication-Results: mx.groups.io; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=uHHuomg+; spf=pass (domain: kernel.org, ip: 145.40.68.75, mailfrom: ardb@kernel.org) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 743B7B81E90 for ; Wed, 7 Dec 2022 16:05:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EBE79C43145 for ; Wed, 7 Dec 2022 16:05:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1670429104; bh=zsAiJd3THLj44Hx9m01kLPodgoFbK8bPafuk9YxBT3M=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=uHHuomg+w1KrpXi97St6CUGarYzaRZ4kqJf+McuKE4gLrOS1o+0de/2mYq24EVyHu 6hWmqYZXDSiojpVKxK6BEuPexyK3Po7Qs2ojm/bAyzFQjDvpjtyUYine+nxhdoNbIV QvjWI8REMoUV/HPfI2LQ+jPcqNzLRQSYS87vCoQ4r5LHaAo0gJyQKip3JcXn62Y/tx 2utwZgk1KPd9Q8kQ2HsjZ+i9UaJ3oNxdDCDbZgLGaMn7XbWvFlmSpX/mU52Ebg6DTP WkRgEEnvYV+9+lbZCwAs3hOWnMEgnFXCIzFWBgBcgo0gI1LuXtvlagZ7wmzpbplGCK 15EksiVtpY+nA== Received: by mail-lf1-f42.google.com with SMTP id c1so29405904lfi.7 for ; Wed, 07 Dec 2022 08:05:03 -0800 (PST) X-Gm-Message-State: ANoB5pky8qXsUwR/nMF/I9FwkG0nTW9xbufhoMJKKbkFopoE5yLD40Oy roppmN1y7fVP8S/eV7/zcG8TLLyKlt6AtpRwSEo= X-Google-Smtp-Source: AA0mqf4H0ROHRKic5MtDVX8GFks5F/SKkdFt/Nw2fA9j8J6RcUBK3C6CUj7ZMA6FXYYW7XT8r/c9tJE0/Pzt3lFmNiM= X-Received: by 2002:a05:6512:22d4:b0:4b5:6f85:e868 with SMTP id g20-20020a05651222d400b004b56f85e868mr4900693lfu.426.1670429101627; Wed, 07 Dec 2022 08:05:01 -0800 (PST) MIME-Version: 1.0 References: <20220726194640.1920-1-michael.d.kinney@intel.com> <20220726194640.1920-2-michael.d.kinney@intel.com> <20221206055649.33rbcbkyuavpxqdk@sirius.home.kraxel.org> <20221207074123.ccj63ciwywubqj6k@sirius.home.kraxel.org> <887bc678bbd4a356edd420809bffa0964e0b162b.camel@linux.ibm.com> <20221207160140.ilh63xxxgefs5hff@sirius.home.kraxel.org> In-Reply-To: <20221207160140.ilh63xxxgefs5hff@sirius.home.kraxel.org> From: "Ard Biesheuvel" Date: Wed, 7 Dec 2022 17:04:50 +0100 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [edk2-devel] [Patch 1/2] OvmfPkg: Change default to disable MptScsi and PvScsi To: Gerd Hoffmann Cc: James Bottomley , Mike Maslenkin , devel@edk2.groups.io, dann.frazier@canonical.com, michael.d.kinney@intel.com, Ard Biesheuvel , Jiewen Yao , Jordan Justen , Sebastien Boeuf , Brijesh Singh , Erdem Aktas , Min Xu , Tom Lendacky , 1016359@bugs.debian.org Content-Type: text/plain; charset="UTF-8" On Wed, 7 Dec 2022 at 17:02, Gerd Hoffmann wrote: > > On Wed, Dec 07, 2022 at 09:14:39AM -0500, James Bottomley wrote: > > On Wed, 2022-12-07 at 15:09 +0100, Ard Biesheuvel wrote: > > > So at some point, these drivers will be removed rather than kept > > > alive by the core team unless someone steps up. > > > > How important is keeping them alive? > > Most common use case is probably bootimg images created on other > hypervisors on qemu. Otherwise there is little reason to use > something which is not virtio-scsi. > > > I can volunteer to "maintain" > > them which I anticipate won't be much effort (plus I'm used to looking > > after obsolete SCSI equipment). The hardware is obsolete, so the > > mechanics of their emulation isn't going to change, the only potential > > risk is changes in the guest to host transmission layer that breaks > > something. > Thanks James, that would be very helpful. > Yes, I don't expect it being much effort, but knowing oldish scsi stuff > certainly helps understanding the driver code if needed. If you want > step up sent a patch updating Maintainers.txt accordingly. > Having the informed opinion of a domain expert should allow us to diagnose issued related to these drivers with more confidence, and also give us insight in how obsolete those drivers actually are. I can send the patch if you prefer. > > On the other hand, I've got to say I use virtio-scsi in all > > my VM testing environments, > > Same here ;) > > take care, > Gerd >