Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932370Ab3GKNNO (ORCPT ); Thu, 11 Jul 2013 09:13:14 -0400 Received: from mail-pd0-f178.google.com ([209.85.192.178]:46342 "EHLO mail-pd0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932182Ab3GKNNM (ORCPT ); Thu, 11 Jul 2013 09:13:12 -0400 Message-ID: <51DEAF60.2000902@ozlabs.ru> Date: Thu, 11 Jul 2013 23:13:04 +1000 From: Alexey Kardashevskiy User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130514 Thunderbird/17.0.6 MIME-Version: 1.0 To: Benjamin Herrenschmidt CC: Alexander Graf , linuxppc-dev@lists.ozlabs.org, David Gibson , Paul Mackerras , Alex Williamson , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, kvm-ppc@vger.kernel.org Subject: Re: [PATCH 6/8] KVM: PPC: Add support for multiple-TCE hcalls References: <1373123227-22969-1-git-send-email-aik@ozlabs.ru> <1373123227-22969-7-git-send-email-aik@ozlabs.ru> <51DC4228.7010607@suse.de> <51DCEA76.9070808@ozlabs.ru> <51DE3ECB.7080803@ozlabs.ru> <43E93931-F213-47CC-ADCF-D3A6D6BC4372@suse.de> <51DE8EE9.2000508@ozlabs.ru> <1373546368.19894.87.camel@pasglop> <4133424D-B105-4CB1-A72A-4F47A6184DC7@suse.de> <1373547480.19894.102.camel@pasglop> In-Reply-To: <1373547480.19894.102.camel@pasglop> Content-Type: text/plain; charset=KOI8-R Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1117 Lines: 27 On 07/11/2013 10:58 PM, Benjamin Herrenschmidt wrote: > On Thu, 2013-07-11 at 14:51 +0200, Alexander Graf wrote: >> I don't like bloat usually. But Alexey even had an #ifdef DEBUG in >> there to selectively disable in-kernel handling of multi-TCE. Not >> calling ENABLE_CAP would give him exactly that without ugly #ifdefs in >> the kernel. > > I don't see much point in disabling it... but ok, if that's a valuable > feature, then shoot some VM level ENABLE_CAP (please don't iterate all > VCPUs, that's gross). No use for me whatsoever as I only want to disable real more handlers and keep virtual mode handlers enabled (sometime, for debug only) and this capability is not about that - I can easily just not enable it in QEMU with the exactly the same effect. So please, fellas, decide whether I should iterate vcpu's or add ENABLE_CAP per KVM. Thanks. -- Alexey -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/