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From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Ian Campbell <Ian.Campbell@citrix.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>,
	"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
	Keir Fraser <keir@xen.org>,
	Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>,
	"bruce.edge@gmail.com" <bruce.edge@gmail.com>,
	Gianni Tedesco <gianni.tedesco@citrix.com>
Subject: Re: [RFC Patch] Support for making an E820 PCI hole in toolstack (xl + xm)
Date: Mon, 15 Nov 2010 12:28:47 -0500	[thread overview]
Message-ID: <20101115172847.GA7874@dumpdata.com> (raw)
In-Reply-To: <1289841600.31507.702.camel@zakaz.uk.xensource.com>

On Mon, Nov 15, 2010 at 05:20:00PM +0000, Ian Campbell wrote:
> On Mon, 2010-11-15 at 17:03 +0000, Konrad Rzeszutek Wilk wrote:
> >  2). It is much simple to parse the E820 in the Linux kernel[...]
> 
> The ability to ingest an e820 from the hypervisor is also needed for
> dom0 to consume the host e820 so it's not like there is additional code
> on the kernel side to cope with this.

There is a bit. We need to decouple the info->nr_pages magic that is used
throughout the code b/c we are treating that value as a 'last pfn'. With
the offset, we need to be more careful about it.

P.S.
(devel code, probably going to post a refresh today):
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git devel/e820-hole

  reply	other threads:[~2010-11-15 17:28 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-12 23:08 [RFC Patch] Support for making an E820 PCI hole in toolstack (xl + xm) Konrad Rzeszutek Wilk
2010-11-12 23:16 ` Konrad Rzeszutek Wilk
2010-11-13  7:40 ` Keir Fraser
2010-11-15 17:03   ` Konrad Rzeszutek Wilk
2010-11-15 17:20     ` Ian Campbell
2010-11-15 17:28       ` Konrad Rzeszutek Wilk [this message]
2010-11-15 17:48     ` Keir Fraser
2010-11-15 18:15       ` Konrad Rzeszutek Wilk
2010-11-15 18:41         ` Keir Fraser
2010-11-15 19:32           ` Jeremy Fitzhardinge
2010-11-15 19:57             ` Keir Fraser
2010-11-15 23:11               ` Konrad Rzeszutek Wilk
2010-11-16  1:06                 ` Jeremy Fitzhardinge
2010-11-16  9:26                   ` Ian Campbell
2010-11-16  9:52                     ` Keir Fraser
2010-11-16 10:02                       ` Ian Campbell
2010-11-16 10:11                         ` Keir Fraser
2010-11-16 18:01                           ` Jeremy Fitzhardinge
2010-11-16 15:50                     ` Konrad Rzeszutek Wilk
2010-11-17 14:23                       ` Ian Campbell
2010-11-16  7:40                 ` Keir Fraser
2010-11-15 19:30         ` Jeremy Fitzhardinge
2010-11-17 11:14 ` Gianni Tedesco
2010-11-17 11:43   ` Ian Campbell
2010-11-17 13:37     ` Gianni Tedesco

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