From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ulrich Drepper Subject: Re: Re: [Xen-changelog] Indirect hypercalls through ahypercall transfer page. Date: Wed, 08 Feb 2006 17:21:18 -0800 Message-ID: <43EA990E.5000807@redhat.com> References: <43EA97A5.4020208@redhat.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0701632776==" Return-path: In-Reply-To: <43EA97A5.4020208@redhat.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Mime-version: 1.0 Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Ulrich Drepper Cc: Ian Pratt , xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --===============0701632776== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig36B653788FBB935F2F3D4B7B" This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig36B653788FBB935F2F3D4B7B Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Ulrich Drepper wrote: > I don't know why > this isn't also enabled for x86-64 but there is no real reason for that= =2E Actually, I remember. It's Andi insistance on this stupid vsyscall interface with fixed addresses. This is absolutely unnecessary. vdsos are so much nicer to handle, need no special code. If somebody would finally be able to replace the vsyscall stuff x86-64 currently uses with a vdso implementation (passing up the address in the auxiliary vector) all would be nice and easy. x86 and ppc already use the vdso, it's not an unproven concept. ppc even uses it in a way which would be needed to implement the fast gettimeofday etc. --=20 =E2=9E=A7 Ulrich Drepper =E2=9E=A7 Red Hat, Inc. =E2=9E=A7 444 Castro St = =E2=9E=A7 Mountain View, CA =E2=9D=96 --------------enig36B653788FBB935F2F3D4B7B Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iD8DBQFD6pkO2ijCOnn/RHQRAnfbAJ93R+O5Wcflp022nHaHSHi7f7mE3wCeIDKa k3jB0teF8WAZAwNBjui51Uw= =Owg2 -----END PGP SIGNATURE----- --------------enig36B653788FBB935F2F3D4B7B-- --===============0701632776== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel --===============0701632776==--