From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Mackerras Subject: Re: [PATCH 1/4] KVM: PPC: Book3S HV: Fix physical address calculations Date: Tue, 10 Dec 2013 16:38:48 +1100 Message-ID: <20131210053848.GA7721@drongo> References: <1384584365-18481-1-git-send-email-paulus@samba.org> <1384584365-18481-2-git-send-email-paulus@samba.org> <52A1AC6F.2090909@ozlabs.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Alexander Graf , kvm@vger.kernel.org, kvm-ppc@vger.kernel.org To: Alexey Kardashevskiy Return-path: Received: from ozlabs.org ([203.10.76.45]:39257 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750764Ab3LJFjL (ORCPT ); Tue, 10 Dec 2013 00:39:11 -0500 Content-Disposition: inline In-Reply-To: <52A1AC6F.2090909@ozlabs.ru> Sender: kvm-owner@vger.kernel.org List-ID: On Fri, Dec 06, 2013 at 09:52:31PM +1100, Alexey Kardashevskiy wrote: > This patch breaks VFIO with Intel E1000E on my p5ioc2 machine (vpl2) - the > guest tries allocating MSI ibm,change_msi and pauses for a while (> > 10minutes), then continues but the ethernet adapter does not work anyway. > Disabling MSI in QEMU does not help though. I'll debug on Monday but quick > ideas are welcome. Looks like I'm losing some low-order address bits in kvmppc_do_h_enter when the guest creates a 4k HPTE. Alex, have you merged this patch in an immutable branch yet? Do you want an incremental patch on top, or a revised version of this patch? Regards, Paul.