From mboxrd@z Thu Jan 1 00:00:00 1970 From: Florian Manschwetus Subject: Re: Re: [Xen-users] Xen viridian support/features Date: Thu, 23 Jul 2009 16:45:53 +0200 Message-ID: <4A6877A1.7000405@gmx.de> References: <11B064048F34FD4094CBA16FC04BE2196072A843@ex01> <20090721072326.GN24960@edu.joroinen.fi> <20090721171533.GT24960@edu.joroinen.fi> <20090723141101.GF5235@york.uk.xensource.com> <20090723141953.GE24960@edu.joroinen.fi> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0759909498==" Return-path: In-Reply-To: <20090723141953.GE24960@edu.joroinen.fi> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: =?ISO-8859-15?Q?Pasi_K=E4rkk=E4inen?= Cc: "xen-devel@lists.xensource.com" , Nathan Eisenberg , Tim Deegan , "Xen-users@lists.xensource.com" List-Id: xen-devel@lists.xenproject.org This is a cryptographically signed message in MIME format. --===============0759909498== Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms050703070604090703000906" This is a cryptographically signed message in MIME format. --------------ms050703070604090703000906 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: quoted-printable Am 23.07.2009 16:19, schrieb Pasi K=E4rkk=E4inen: > On Thu, Jul 23, 2009 at 03:11:01PM +0100, Tim Deegan wrote: >> At 18:15 +0100 on 21 Jul (1248200133), Pasi K?rkk?inen wrote: >>> Then again I'm not sure "how much" of viridian stuff Xen currently >>> supports.. >> At the moment we provide MSR access to APIC registers, and the hyperca= ll >> to yield the CPU when waiting for a spinlock. We looked at a few othe= rs >> (e.g. address-space-change hypercall) but found the benefits, if any, >> were negligible. >> >> The most important part of the interface is that we can use it to tell= >> Windows not to expect timer interrupt delivery to be as even across al= l >> CPUs as it would be on bare metal. This gets rid of annoying STOP 0x1= 01 >> bluescreens in multi-vcpu Windows from Vista on. >> > > Thanks for the reply! > > Any plans to write support for paravirtual viridian disk/network backen= ds? > (I assume they have stuff like that implemented in hyper-v). > > -- Pasi > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > Take a shorter target, reboot notification using hyper-v guest=20 integration stuff would be a great win. 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