Date: Fri, 15 Apr 2016 17:24:17 +0200
From: "Luis R. Rodriguez" <mcgrof@kernel.org>
To: Juergen Gross <jgross@suse.com>
Cc: "Luis R. Rodriguez" <mcgrof@kernel.org>,
        George Dunlap <george.dunlap@citrix.com>,
        Matt Fleming <matt@codeblueprint.co.uk>, jeffm@suse.com,
        Michael Chang <MChang@suse.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Jim Fehlig <jfehlig@suse.com>, Jan Beulich <JBeulich@suse.com>,
        "H. Peter Anvin" <hpa@zytor.com>,
        Daniel Kiper <daniel.kiper@oracle.com>,
        the arch/x86 maintainers <x86@kernel.org>,
        Takashi Iwai <tiwai@suse.de>,
        =?utf-8?Q?Vojt=C4=9Bch_Pavl=C3=ADk?= <vojtech@suse.cz>,
        Gary Lin <GLin@suse.com>, xen-devel <xen-devel@lists.xenproject.org>,
        Jeffrey Cheung <JCheung@suse.com>,
        Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
        joeyli <jlee@suse.com>, Borislav Petkov <bp@alien8.de>,
        Boris Ostrovsky <boris.ostrovsky@oracle.com>,
        Charles Arndol <carnold@suse.com>,
        Andrew Cooper <andrew.cooper3@citrix.com>,
        Julien Grall <julien.grall@arm.com>,
        Andy Lutomirski <luto@amacapital.net>,
        David Vrabel <david.vrabel@citrix.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Roger Pau =?iso-8859-1?Q?Monn=E9?= <roger.pau@citrix.com>
Subject: Re: [Xen-devel] HVMLite / PVHv2 - using x86 EFI boot entry
Message-ID: <20160415152417.GW1990@wotan.suse.de>
References: <20160406024027.GX1990@wotan.suse.de>
 <CAFLBxZbRjB6QWH5GbG6osCXat9NQVUAyDYrAMrdALbCofpX3Dg@mail.gmail.com>
 <20160407185148.GL1990@wotan.suse.de>
 <CAFLBxZbJ4QyJQ1-ZuXg_Q-9YNXnWzDyPNp4SX=d9g0DS8mJKaw@mail.gmail.com>
 <20160413195257.GB1990@wotan.suse.de>
 <570F68AB.2040400@citrix.com>
 <20160414194408.GP1990@wotan.suse.de>
 <57108121.1070307@suse.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <57108121.1070307@suse.com>
User-Agent: Mutt/1.5.21 (2010-09-15)
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 868
Lines: 21

On Fri, Apr 15, 2016 at 07:50:25AM +0200, Juergen Gross wrote:
> On 14/04/16 21:44, Luis R. Rodriguez wrote:
> > No, I meant to ask, would it be possible to make booting HVMLite using EFI
> > be optional ? That way if you already support EFI that can be used on
> > your entires with some small modifications.
> 
> So you suggest to add two HVMlite modes regarding boot interface
> instead of one?

Not suggest, I'm evaluating what options we have available. That's very
different from suggesting. That's the point to this whole topic, pure and
simple evaluation of options.

> Given how long the EFI standard is available now and how buggy many
> vendor's implementations are I don't expect all computers sold in 5
> years will have a usable EFI. This will be true especially for
> consumer devices where no EFI is available today.

Thanks this really helps.

  Luis