Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752338Ab2JLVWN (ORCPT ); Fri, 12 Oct 2012 17:22:13 -0400 Received: from rcsinet15.oracle.com ([148.87.113.117]:32571 "EHLO rcsinet15.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752203Ab2JLVWL (ORCPT ); Fri, 12 Oct 2012 17:22:11 -0400 Date: Fri, 12 Oct 2012 14:22:04 -0700 From: Mukesh Rathor To: Ian Campbell Cc: Konrad Rzeszutek Wilk , "Xen-devel@lists.xensource.com" , "linux-kernel@vger.kernel.org" Subject: Re: [Xen-devel] [PATCH V2 1/7]: PVH: basic and header changes, elfnote changes, ... Message-ID: <20121012142204.47b9d780@mantra.us.oracle.com> In-Reply-To: <1350031728.14806.45.camel@zakaz.uk.xensource.com> References: <20121011145317.51655302@mantra.us.oracle.com> <1350031728.14806.45.camel@zakaz.uk.xensource.com> Organization: Oracle Corporation X-Mailer: Claws Mail 3.7.6 (GTK+ 2.18.9; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Source-IP: acsinet21.oracle.com [141.146.126.237] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1100 Lines: 27 On Fri, 12 Oct 2012 09:48:48 +0100 Ian Campbell wrote: > > index fdce49c..9323b8c 100644 > > --- a/arch/x86/xen/Kconfig > > +++ b/arch/x86/xen/Kconfig > > @@ -50,3 +50,13 @@ config XEN_DEBUG_FS > > Enable statistics output and various tuning options in > > debugfs. Enabling this option may incur a significant performance > > overhead. > > +config XEN_X86_PVH > > + bool "Support for running as a PVH guest (EXPERIMENTAL)" > > + depends on X86_64 && XEN && INTEL_IOMMU && EXPERIMENTAL > > OOI why does the kernel side require an INTEL_IOMMU? I can see why the > hypervisor would need it but the guests (including dom0) can't > actually see the underlying IOMMU, can they? Well, the kernel requires the hypervisor to have it, but I guess thats not what this is referring to. The tools can decide that. I'll take it out. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/