From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan Kiszka Subject: Re: [PATCH] KVM: SVM: Keep intercepting task switching with NPT enabled Date: Wed, 02 Nov 2011 10:59:03 +0100 Message-ID: <4EB11467.8050303@web.de> References: <4E9DA7EF.30804@siemens.com> <20111018163516.GO2198@amd.com> <4E9DB95C.1030105@redhat.com> <20111101111335.GD13244@amd.com> <4EAFF6A5.8050308@web.de> <20111101153019.GH13244@amd.com> <4EB01516.2070402@web.de> <20111101161537.GI13244@amd.com> <4EB03900.6000700@web.de> <20111102095529.GL13244@amd.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigFC9850279FCA75A7AAD0F0F0" Cc: Avi Kivity , Marcelo Tosatti , kvm , Gleb Natapov To: "Roedel, Joerg" Return-path: Received: from fmmailgate06.web.de ([217.72.192.247]:41985 "EHLO fmmailgate06.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751572Ab1KBJ7I (ORCPT ); Wed, 2 Nov 2011 05:59:08 -0400 Received: from moweb002.kundenserver.de (moweb002.kundenserver.de [172.19.20.108]) by fmmailgate06.web.de (Postfix) with ESMTP id 487D3ABBD95 for ; Wed, 2 Nov 2011 10:59:06 +0100 (CET) In-Reply-To: <20111102095529.GL13244@amd.com> Sender: kvm-owner@vger.kernel.org List-ID: This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigFC9850279FCA75A7AAD0F0F0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On 2011-11-02 10:55, Roedel, Joerg wrote: > On Tue, Nov 01, 2011 at 02:22:56PM -0400, Jan Kiszka wrote: >> On 2011-11-01 17:15, Roedel, Joerg wrote: >>> No, also a hypervisor that creates the nested page-page on advance fa= lls >>> into this category. >> >> Doesn't this means all guest memory has to be backed with host memory?= >> That's what I meant with "static". >=20 > Yes, but isn't Xen working this way? I wouldn't call Xen a simple > partitioning hypervisor :) Not sure if they map ahead of time or lazily, at least they intercept task switching as well. Jan --------------enigFC9850279FCA75A7AAD0F0F0 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.16 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk6xFGcACgkQitSsb3rl5xRK7ACeMkCn4Qz2Kb1VFB4K8UMYETyt RqkAniI/1ZeSxECaUbZFSjZtzng/BzKj =AZ7p -----END PGP SIGNATURE----- --------------enigFC9850279FCA75A7AAD0F0F0--