From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marc Zyngier Subject: Re: [PATCH] KVM: arm/arm64: fix MMIO handling on userland induced accesses Date: Wed, 25 Mar 2015 17:37:48 +0000 Message-ID: <5512F26C.4080105@arm.com> References: <1427126309-11223-12-git-send-email-andre.przywara@arm.com> <1427212996-16844-1-git-send-email-andre.przywara@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Cc: "kvmarm@lists.cs.columbia.edu" , "n.nikolaev@virtualopensystems.com" , "eric.auger@linaro.org" , "kvm@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" To: Andre Przywara , "christoffer.dall@linaro.org" , "pbonzini@redhat.com" Return-path: Received: from foss.arm.com ([217.140.101.70]:51336 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932268AbbCYRhw (ORCPT ); Wed, 25 Mar 2015 13:37:52 -0400 In-Reply-To: <1427212996-16844-1-git-send-email-andre.przywara@arm.com> Sender: kvm-owner@vger.kernel.org List-ID: On 24/03/15 16:03, Andre Przywara wrote: > The guest is not the only user of the MMIO handling routines, userland > can also read and write to those handlers. Since we don't use the > KVM iobus framework in this case, we have to set the data pointer to > some actual memory before executing the handler routines. > This allows to use QEMU as the userland control tool. > > Signed-off-by: Andre Przywara > --- > Hi, > > just embarrassingly realised that I haven't tested the latest version of this > series with QEMU, so this bug slipped me. Sorry for that! I will merge this > patch in the next revision of this series (or just send a new version of > 11/12). I'll squash it into patch #11 when I merge it. Thanks, M. -- Jazz is not dead. It just smells funny...