From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan Kiszka Subject: qemu vs. kvm: When to flush the coalesced mmio buffer? Date: Mon, 03 Jan 2011 13:11:32 +0100 Message-ID: <4D21BCF4.6020904@web.de> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig3FDDCC10E43ABAE0508E56A9" To: kvm , qemu-devel Return-path: Received: from fmmailgate01.web.de ([217.72.192.221]:48301 "EHLO fmmailgate01.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751908Ab1ACMLe (ORCPT ); Mon, 3 Jan 2011 07:11:34 -0500 Sender: kvm-owner@vger.kernel.org List-ID: This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig3FDDCC10E43ABAE0508E56A9 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: quoted-printable Hi again, another subtle difference between qemu-kvm and upstream: When we leave the guest for an IO window (KVM_RUN returns EINTR or EAGAIN), we call kvm_flush_coalesced_mmio_buffer in qemu-kvm but not in upstream. When version is better? I can't find any rationales in both git logs. Jan --------------enig3FDDCC10E43ABAE0508E56A9 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.15 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org/ iEYEARECAAYFAk0hvPQACgkQitSsb3rl5xRGeQCgyghB42YErbtqIPhlW2ZbkmHn sRQAn2bSu+fFOZk48UsFMA6fQ3WWBVI2 =6Mgk -----END PGP SIGNATURE----- --------------enig3FDDCC10E43ABAE0508E56A9--