linux-kernel - Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest

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Message-ID: <CAB=NE6X3=WRHcaGfPU+OzjwY8AzfrKF5eLp6yZWBQr7QxVsv1A@mail.gmail.com>
Date:	Tue, 26 Jan 2016 18:16:25 -0800
From:	"Luis R. Rodriguez" <mcgrof@...e.com>
To:	Boris Ostrovsky <boris.ostrovsky@...cle.com>
Cc:	Juergen Gross <jgross@...e.com>,
	Jeremy Fitzhardinge <jeremy@...p.org>, X86 ML <x86@...nel.org>,
	Andrew Cooper <andrew.cooper3@...rix.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andy Lutomirski <luto@...capital.net>,
	David Vrabel <david.vrabel@...rix.com>,
	"H. Peter Anvin" <hpa@...or.com>, xen-devel@...ts.xenproject.org,
	Borislav Petkov <bp@...e.de>,
	Roger Pau Monné <roger.pau@...rix.com>
Subject: Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest

On Tue, Jan 26, 2016 at 4:04 PM, Luis R. Rodriguez <mcgrof@...e.com> wrote:
> You go:
>
> hvmlite_start_xen() -->
>         HVM stub
>         startup_64() | (startup_32()

Hrm, does HVMlite work well with load_ucode_bsp(), note the patches to
rebrand pv_enabled() to pv_legacy() or whatever, this PV type will not
be legacy or crap / old, so we'd need a way to catch it if we should
not use that code for this PV type. This begs the question, are you
also sure other callers in startup_32() or startup_64() might be OK as
well where previously guarded with pv_enabled() ?

 Luis