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Wed, 23 Sep 2026 08:38:56 -0700 (PDT) From: Benjamin Leggett To: Jan Beulich Cc: Andrew Cooper , Anthony PERARD , Michal Orzel , Julien Grall , Roger Pau =?utf-8?Q?Monn=C3=A9?= , Stefano Stabellini , xen-devel@lists.xenproject.org Subject: Re: [PATCH] ns16550: find the console UART on PCI when there is no legacy one In-Reply-To: <1f2eb0d2-5208-40e4-bcd1-55df6ebfc2e3@suse.com> References: <20260922184316.324817-1-benjamin@edera.io> <1f2eb0d2-5208-40e4-bcd1-55df6ebfc2e3@suse.com> User-Agent: mu4e 1.12.12; emacs 32.0.50 Date: Wed, 23 Sep 2026 11:38:54 -0400 Message-ID: <87zex8j7u9.fsf@edera.io> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable X-purgate-ID: tlsNG-4011c0/1790177938-512C8CFC-D6C95F3D/0/0 X-purgate-type: clean X-purgate-size: 1144 Jan Beulich writes: > Is there a spec that you could point to here? Unfortunately not really, just an upstream Linux commit from 2017 ( ), and the fact that I=E2=80=99ve tested it on EC2 bare metal boxes. The ba= re metal boxes are being phased out, but people still use them. > This needs to be split to a separate patch, and not only because right > now you=E2=80=99re doing two entirely unrelated things in a single change= . The > addition of the Amazon device is likely uncontroversial, so presumably > can go in quickly. Yes, agreed. I will split and separately submit them. > Doing a scan when none was asked for, otoh, is > potentially problematic: What if there=E2=80=99s an issue during scanning= ? With > not having any output set up yet, we couldn=E2=80=99t even indicate the p= roblem, > and a possible crash would also go entirely silently. Yep, thanks. I will see if I can address these with a different version of the autoscan patch as a followup.