WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

Re: [Xen-devel] irq processing related question ....

To: Himanshu Raj <rhim@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] irq processing related question ....
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Wed, 9 Mar 2005 09:09:33 +0000
Cc: xen-devel@xxxxxxxxxxxxxxxxxxxxx
Delivery-date: Wed, 09 Mar 2005 09:07:44 +0000
Envelope-to: xen+James.Bulpin@xxxxxxxxxxxx
In-reply-to: <20050309001729.GA5866@xxxxxxxxxxxxx>
List-archive: <http://sourceforge.net/mailarchive/forum.php?forum=xen-devel>
List-help: <mailto:xen-devel-request@lists.sourceforge.net?subject=help>
List-id: List for Xen developers <xen-devel.lists.sourceforge.net>
List-post: <mailto:xen-devel@lists.sourceforge.net>
List-subscribe: <https://lists.sourceforge.net/lists/listinfo/xen-devel>, <mailto:xen-devel-request@lists.sourceforge.net?subject=subscribe>
List-unsubscribe: <https://lists.sourceforge.net/lists/listinfo/xen-devel>, <mailto:xen-devel-request@lists.sourceforge.net?subject=unsubscribe>
References: <20050309001729.GA5866@xxxxxxxxxxxxx>
Sender: xen-devel-admin@xxxxxxxxxxxxxxxxxxxxx

On 9 Mar 2005, at 00:17, Himanshu Raj wrote:

I was looking at the definition of FIRST_EXTERNAL_VECTOR in
xen/include/asm-x86/irq.h and linux-2.6.10-.../mach-xen/irq_vectors.h. They are not the same. Furthermore, the hypercall vector is defined differently. Is there any correlation between these symbols in different files? I thought the
external intr vectors started after the 32 TRAPs, no?

I raised to 0x30 so that 0x20-0x2f can be used as 'fast trap' vectors by OSes that use them. If none of the BSDs use that trap range then FIRST_EXTERNAL_VECTOR can be dropped to 0x20 -- we are unlikely to be supporting paravirtual Windows OSes in teh forseeable future. :-)

 -- Keir



-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now.
http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/xen-devel

<Prev in Thread] Current Thread [Next in Thread>