xen-devel

[Top] [All Lists]

Re: [Xen-devel] ptep_set_access_flags() using UVMF_MULTI?

from [Jan Beulich]

[Permanent Link][Original]

To:	"Keir Fraser" <keir@xxxxxxxxxxxxx>
Subject:	Re: [Xen-devel] ptep_set_access_flags() using UVMF_MULTI?
From:	"Jan Beulich" <jbeulich@xxxxxxxxxx>
Date:	Tue, 13 Mar 2007 13:34:59 +0000
Cc:	xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date:	Tue, 13 Mar 2007 06:33:18 -0700
Envelope-to:	www-data@xxxxxxxxxxxxxxxxxx
In-reply-to:	<C21C4510.B5A0%keir@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/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>
References:	<45F69599.76E4.0078.0@xxxxxxxxxx> <C21C4510.B5A0%keir@xxxxxxxxxxxxx>
Sender:	xen-devel-bounces@xxxxxxxxxxxxxxxxxxx

>>> Keir Fraser <keir@xxxxxxxxxxxxx> 13.03.07 13:09 >>>
>On 13/3/07 11:14, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote:
>
>> Why is this so when the touched mm is active, even though the alternative
>> case and native only use flush_tlb_page() (i.e. only flush the local tlb)?
>> 
>> Thanks, Jan
>
>We don't need any more flushing than native. Perhaps the original native
>code did a cross-TLBs flush and that got reduced in more recent kernels but
>the Xen code didn't get modified? Anyway, please send a patch.

My mistake, I looked at the !SMP case (and even half-way knew I did, but didn't
bother to look at the SMP one, too.

Sorry for the noise, Jan

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

[More with this subject...]

<Prev in Thread]	Current Thread	[Next in Thread>
[Xen-devel] ptep_set_access_flags() using UVMF_MULTI?, Jan Beulich Re: [Xen-devel] ptep_set_access_flags() using UVMF_MULTI?, Keir Fraser Re: [Xen-devel] ptep_set_access_flags() using UVMF_MULTI?, Jan Beulich <=

Previous by Date:	Re: [Xen-devel] 3w-xxxx module problems with Xen, Keir Fraser
Next by Date:	[Xen-devel] SMBIOS level in Xen, Subrahmanian, Raj
Previous by Thread:	Re: [Xen-devel] ptep_set_access_flags() using UVMF_MULTI?, Keir Fraser
Next by Thread:	[Xen-devel] bug using bootloader + patch, Eric Einhorn
Indexes:	[Date] [Thread] [Top] [All Lists]