Re: [Xen-devel] [PATCH] Intel(R) Trusted Execution Technology su

To:	"Cihula, Joseph" <joseph.cihula@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>, <xense-devel@xxxxxxxxxxxxxxxxxxx>
Subject:	Re: [Xen-devel] [PATCH] Intel(R) Trusted Execution Technology support
From:	Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date:	Mon, 29 Oct 2007 18:04:56 +0000
Cc:	"Xu, James" <james.xu@xxxxxxxxx>, "Wang, Shane" <shane.wang@xxxxxxxxx>, "Wei, Gang" <gang.wei@xxxxxxxxx>
Delivery-date:	Mon, 29 Oct 2007 11:05:51 -0700
Envelope-to:	www-data@xxxxxxxxxxxxxxxxxx
In-reply-to:	<D936D925018D154694D8A362EEB0892002C7C40F@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>
List-help:	<mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id:	Xen developer discussion <xen-devel.lists.xensource.com>
List-post:	<mailto:xen-devel@lists.xensource.com>
List-subscribe:	<http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe:	<http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Sender:	xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index:	AcgYPKeHAh+s/rrjQ0OzxTZHSH6adQB0Zgj0AAzUsnAAA3v0QgAAvpSgAAB6yw4AAD/usAAAM7T7
Thread-topic:	[Xen-devel] [PATCH] Intel(R) Trusted Execution Technology support
User-agent:	Microsoft-Entourage/11.3.6.070618

On 29/10/07 18:00, "Cihula, Joseph" <joseph.cihula@xxxxxxxxx> wrote:

>> By low memory, do you mean the signature is in the bottom megabyte of
>> memory? If that's guaranteed then can we just scan the whole lot
>> 0x00000-0xfffff (excluding VGA hole)?
> 
> Yes, it's in the lower 1MB and that is where dom0 has problems with
> gaps.  But I think that the UNUSABLE->RESERVED approach will be just as
> effective and reduce the amount of memory to scan as well.

Okay, we should limit the scan to page-aligned addresses in UNUSABLE regions
below 1MB. It makes sense to put the UNUSABLE->RESERVED hack in Xen itself,
rather than in tboot. Once the interface is baked into 3.2.0 it's not
changing on our side.

 -- Keir

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

<Prev in Thread]

Current Thread

[Next in Thread>

Previous by Date:

RE: [Xen-devel] [PATCH] Intel(R) Trusted Execution Technology support, Cihula, Joseph

Next by Date:

Re: [Xen-devel] [PATCH] xen: cache current vcpu, Christoph Egger

Previous by Thread:

RE: [Xen-devel] [PATCH] Intel(R) Trusted Execution Technology support, Cihula, Joseph

Next by Thread:

RE: [Xen-devel] [PATCH] Intel(R) Trusted Execution Technology support, Cihula, Joseph

Indexes:

[Date] [Thread] [Top] [All Lists]

WARNING - OLD ARCHIVES

xen-devel

Re: [Xen-devel] [PATCH] Intel(R) Trusted Execution Technology support