linux-kernel - Re: [PATCH v5 2/2] x86/xen: allow privcmd hypercalls to be preempted on 64-bit

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Date:	Tue, 3 Feb 2015 09:58:28 +0000
From:	David Vrabel <david.vrabel@...rix.com>
To:	"Luis R. Rodriguez" <mcgrof@...not-panic.com>
CC:	Jan Beulich <JBeulich@...e.com>,
	Andy Lutomirski <luto@...capital.net>,
	Steven Rostedt <rostedt@...dmis.org>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	<x86@...nel.org>, Thomas Gleixner <tglx@...utronix.de>,
	Paul McKenney <paulmck@...ux.vnet.ibm.com>,
	<xen-devel@...ts.xenproject.org>, <boris.ostrovsky@...cle.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...e.de>,
	<kvm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH v5 2/2] x86/xen: allow privcmd hypercalls to be preempted
 on 64-bit

On 03/02/15 00:24, Luis R. Rodriguez wrote:
> 
> As I waited I decided to finally install a 32-bit OS but I found now
> that as of Xen commit 5d1181a5 which went upstream as of xen 4.3 Xen
> no longer supports 32-bit for x86.

You don't need a 32-bit hypervisor to run 32-bit dom0 or domUs.

David
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