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] set_fast_trap() in xenlinux

To: "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] set_fast_trap() in xenlinux
From: "pallavi jk" <pallutai@xxxxxxxxx>
Date: Thu, 9 Oct 2008 18:32:00 +0530
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Thu, 09 Oct 2008 06:02:24 -0700
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:cc:in-reply-to:mime-version:content-type:references; bh=syCvhdSxNKNzmhuVxVkiqm1gdQ+8Jgl3uPhS1E7EN80=; b=Yys7clKy9VsTe9TlitU7iNUtQiueDPqwMtHO2vbXq7bS2KwZgZakR3lSXV1QwmvSOx wCIH1JPc6yqjuBvX+dssZAJETjq96Iss/mn+2/NXKGVe8ZeG1/rSpquNQgmO9AQN+wL1 p1FGXkFviQ1JQ91DWkPtgms+4b1te2/94zoR0=
Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:references; b=a1UD/IWasP1ud77Q1O50XUomR4vhEE4K8wV8I9fKtjrSteru3MdN88QtSOM2Tt/z/I 6VamNwHXdYCj56OAQWz9tNzLSjXR5lYF7EF+DeHGcRMgqBWCIfCwrtrirTFNz3FOLxRb BmyAvu2jxG7eQzVP/7M4Yh3AbH7hIxDx2u49Q=
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <C513AD4B.27E46%keir.fraser@xxxxxxxxxxxxx>
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/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <a55a39a90810090405h1d344f03k183ecde1ab2ab071@xxxxxxxxxxxxxx> <C513AD4B.27E46%keir.fraser@xxxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thanx a lot for the answer.
 
I am trying to use xen for a system where I need the control to be transferred to xen i.e. I need to perform some checks in xen before transferring control to the guest.

Can you please tell me how this can be done??...I think I need to disable fast handlers...How can I do this?...or should I switch to an older version of xen?

On Thu, Oct 9, 2008 at 5:14 PM, Keir Fraser <keir.fraser@xxxxxxxxxxxxx> wrote:
Normal trap handlers registered on vector 0x80 are automatically 'faster'. set_fast_trap() disappeared ages ago.

 -- Keir


On 9/10/08 12:05, "pallavi jk" <pallutai@xxxxxxxxx> wrote:

Can anyone please tell me whether HYPERVISOR_set_fast_trap() is used in linux-2.6.18.hg which runs as dom0 on xen?
I searched through the code but could not find it there...
Are fast handlers used as default?...

Also, I found "fastcall" written in the prototype of many functions...does it have any relation with fastcalls??




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


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
<Prev in Thread] Current Thread [Next in Thread>