From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.5 required=3.0 tests=DATE_IN_PAST_03_06, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS, USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0D81AC282DD for ; Thu, 23 May 2019 11:56:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B6A2D21019 for ; Thu, 23 May 2019 11:56:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="cRTr4603" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730369AbfEWL4p (ORCPT ); Thu, 23 May 2019 07:56:45 -0400 Received: from bilbo.ozlabs.org ([203.11.71.1]:34059 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729698AbfEWL4o (ORCPT ); Thu, 23 May 2019 07:56:44 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 458nzF42Z1z9s4V; Thu, 23 May 2019 21:56:41 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1558612601; bh=YFHaKAHwSkkNV01pYtDLBmlGW8tDfBU5zHN14Jech/U=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=cRTr4603N7N0NAWy9HE9tGd+GYfZOqgmMD/dAGxIN+xOaLn5TiiEqgmuMtaeBxTWk Yc4VNThu0g1ATCaZ5OIzXWEtm0D6Vaolly2lCmMPtRKwMis1DaQjphmpQSqx2jIxvl 6XIWir3CMxvxaaiAnOcdzBf4ckpyBj7sd3+fkfqs= Date: Thu, 23 May 2019 16:27:15 +1000 From: David Gibson To: Greg Kurz Cc: =?iso-8859-1?Q?C=E9dric?= Le Goater , kvm-ppc@vger.kernel.org, Paul Mackerras , kvm@vger.kernel.org Subject: Re: [PATCH 0/3] KVM: PPC: Book3S HV: XIVE: assorted fixes on vCPU and RAM limits Message-ID: <20190523062715.GR30423@umbus.fritz.box> References: <20190520071514.9308-1-clg@kaod.org> <20190522233043.GO30423@umbus.fritz.box> <20190523080123.6e700a1e@bahia.lan> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="BZziOT8Kz25R/m/E" Content-Disposition: inline In-Reply-To: <20190523080123.6e700a1e@bahia.lan> User-Agent: Mutt/1.11.4 (2019-03-13) Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org --BZziOT8Kz25R/m/E Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, May 23, 2019 at 08:01:23AM +0200, Greg Kurz wrote: > On Thu, 23 May 2019 09:30:43 +1000 > David Gibson wrote: >=20 > > On Mon, May 20, 2019 at 09:15:11AM +0200, C=E9dric Le Goater wrote: > > > Hello, > > >=20 > > > Here are a couple of fixes for issues in the XIVE KVM device when > > > testing the limits : RAM size and number of vCPUS. =20 > >=20 > > How serious are the problems these patches fix? I'm wondering if I > > need to make a backport for RHEL8.1. > >=20 >=20 > Patch 2/3 fixes a QEMU error when hot-unplugging a vCPU: >=20 > qemu-system-ppc64: KVM_SET_DEVICE_ATTR failed: Group 4 attr 0x00000000000= 00046: Invalid argument >=20 >=20 > Patch 3/3 fixes an issue where the guest freezes at some point when doing > vCPU hot-plug/unplug in a loop. Oh.. weird. It's not clear to me how it would do that. > Both issues have a BZ at IBM. They can be mirrored to RH if needed. That would be helpful, thanks. >=20 > > >=20 > > > Based on 5.2-rc1. > > >=20 > > > Available on GitHub: > > >=20 > > > https://github.com/legoater/linux/commits/xive-5.2 > > >=20 > > > Thanks, > > >=20 > > > C.=20 > > >=20 > > > C=E9dric Le Goater (3): > > > KVM: PPC: Book3S HV: XIVE: clear file mapping when device is releas= ed > > > KVM: PPC: Book3S HV: XIVE: do not test the EQ flag validity when > > > reseting > > > KVM: PPC: Book3S HV: XIVE: fix the enforced limit on the vCPU > > > identifier > > >=20 > > > arch/powerpc/kvm/book3s_xive_native.c | 46 ++++++++++++++++---------= -- > > > 1 file changed, 27 insertions(+), 19 deletions(-) > > > =20 > >=20 >=20 --=20 David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson --BZziOT8Kz25R/m/E Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEdfRlhq5hpmzETofcbDjKyiDZs5IFAlzmPUEACgkQbDjKyiDZ s5IrWg/+OTY4FNwrBdELptmuvQZnFRtq5PGofd5x7xRrpjX/soyjsiUt+YPUIQvd YGWbJcr8K+j2IYc1AxNmeXKyTZdLEha82ZkwigxIhpPKJj+xaOe5bWkseBU0TciM t0tIb6HgHwUAjnkSg7eWyXXS0U+jo3/7QtxSSiWzJY8vLot5Bt41yOAIzCEvLtYp cJYWmjXhAbxNJz/Fp5qiGyBlzzDmbc3nKd83VcOL8bTtEYtGSIMb724qaQqvDj7H q0bIl1snxr35SleGBPWJUm1U0EemulNYAHcwZWco8tFl2MfPl92Y/9X5xEqqBLpD hNBD+C1NwGLaegdVJTXcoAiSXO3o3dhMiMKTG5IJJVf6O77p2bWPN3PZXmNJL0bP DNzLXHLxcDJa//dW1SW4WIpjFe9fJfRr9jot61kpCK64tRKiHvZWB0a7VN8zVuIJ uKlNCQksU+Lj6kgmMVJFBXCSH6852NjqS04mUZfWiRopl4rv001KUw7Xlk2R/HNS b2g2I9owivRLbL032tc7P2LmaOGk6Ty4nZdG4SgCxhBS84yg5JYvXyPSIhCU3v4a VpVZvQtkNoBuXTRjKC0dsIGavvNi2Q5UOTMpFH4yT7T1Miy6pR1UoLufEZXcYdtd m9BLwje58Lz1oaoRi3FI9cPnLw/YoRNW1IJPvYXTioQovok9dRk= =0Y7N -----END PGP SIGNATURE----- --BZziOT8Kz25R/m/E--