From nobody Wed Aug 18 15:11:28 2021
X-Original-To: freebsd-xen@mlmmj.nyi.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1])
	by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 8F291174ADE5
	for <freebsd-xen@mlmmj.nyi.freebsd.org>; Wed, 18 Aug 2021 15:11:38 +0000 (UTC)
	(envelope-from royger@freebsd.org)
Received: from smtp.freebsd.org (smtp.freebsd.org [IPv6:2610:1c1:1:606c::24b:4])
	(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
	 key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256
	 client-signature RSA-PSS (4096 bits) client-digest SHA256)
	(Client CN "smtp.freebsd.org", Issuer "R3" (verified OK))
	by mx1.freebsd.org (Postfix) with ESMTPS id 4GqWZf3TVGz4bt6;
	Wed, 18 Aug 2021 15:11:38 +0000 (UTC)
	(envelope-from royger@freebsd.org)
Received: from localhost (unknown [93.176.191.254])
	(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
	(Client did not present a certificate)
	(Authenticated sender: royger)
	by smtp.freebsd.org (Postfix) with ESMTPSA id 04D382B564;
	Wed, 18 Aug 2021 15:11:37 +0000 (UTC)
	(envelope-from royger@freebsd.org)
Date: Wed, 18 Aug 2021 17:11:28 +0200
From: Roger Pau =?utf-8?B?TW9ubsOp?= <royger@freebsd.org>
To: "Lizbeth Mutterhunt, Ph.D" <lizbethmutterhunt@gmail.com>
Cc: Gerd Hafenbrack <gerd.hafenbrack@gmail.com>, freebsd-xen@freebsd.org
Subject: Re: another xen-kernel UEFI story
Message-ID: <YR0jIDoP+FnCpatb@Air-de-Roger>
References: <3839452.BRNeRiNLvY@freebsd_current>
 <YRVQHmzo5c7Tq3Dn@Air-de-Roger>
 <9cf13949-3436-ce43-9884-d7a028c940fb@gmail.com>
 <2659512.iL6vRArjjl@freebsd_current>
 <f02a63b1-0b48-55ce-7f98-9486216e8ecf@gmail.com>
 <4DAB0DB2-E18D-4024-B80B-FCA2D2F51A45@gmail.com>
List-Id: Discussion <freebsd-xen.freebsd.org>
List-Archive: https://lists.freebsd.org/archives/freebsd-xen
List-Help: <mailto:xen+help@freebsd.org>
List-Post: <mailto:xen@freebsd.org>
List-Subscribe: <mailto:xen+subscribe@freebsd.org>
List-Unsubscribe: <mailto:xen+unsubscribe@freebsd.org>
Sender: owner-freebsd-xen@freebsd.org
X-BeenThere: freebsd-xen@freebsd.org
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <4DAB0DB2-E18D-4024-B80B-FCA2D2F51A45@gmail.com>
X-Spam: Yes
X-ThisMailContainsUnwantedMimeParts: N

On Wed, Aug 18, 2021 at 04:03:34PM +0200, Lizbeth Mutterhunt, Ph.D wrote:
> Ok, the RS-232 cable arrived yestereday to connect it with my ASUS board shouldn’t be the problem, but how to connect on the other side of a 7 year old Dell Notebook with FreeBSD 14 CURRENT running? I guess I need a USB -> RS232 adapter there, or? And the Raspi would need something like this, too?

Yes, that's what I use, a RS-232 to USB adapter. I've connected the
adapter to either a laptop or a Raspberry Pi. As long as you have the
drivers it doesn't really matter what you use on the other end.

Keep in mind the cable between both boxes must be a null modem cable,
or else it won't work.

> Greetz, 
> Lizbeth
> 
> P.S.: Clover can boot XEN, but not FreeBSD!?

Xen uses the multiboot protocol, which is an OS agnostic standard
likely to be implemented by many bootloaders.

Also Xen can be build as an UEFI binary (PE), thus being booted
directly from the UEFI shell much like FreeBSD first stage loader.

Regards, Roger.