From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rusty Russell Subject: [PATCH 1/3] ARM: KVM: Remove l2ctlr write. Date: Thu, 29 Mar 2012 15:45:50 +1030 Message-ID: <87ty18xa0p.fsf@rustcorp.com.au> References: <20120312065134.8074.36949.stgit@ubuntu> <87y5qkxa88.fsf@rustcorp.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: patches@linaro.org To: Christoffer Dall , android-virt@lists.cs.columbia.edu, kvm@vger.kernel.org Return-path: Received: from ozlabs.org ([203.10.76.45]:60611 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752033Ab2C2FS3 (ORCPT ); Thu, 29 Mar 2012 01:18:29 -0400 In-Reply-To: <87y5qkxa88.fsf@rustcorp.com.au> Sender: kvm-owner@vger.kernel.org List-ID: Current guests don't do this, and it's not clear what we should do if they try to turn on ECC or set various RAM latencies. When someone does this, we'll have a better idea of what we should do about it. Signed-off-by: Rusty Russell --- arch/arm/kvm/emulate.c | 5 +---- 1 files changed, 1 insertions(+), 4 deletions(-) diff --git a/arch/arm/kvm/emulate.c b/arch/arm/kvm/emulate.c index e356d1c..aec1b6e 100644 --- a/arch/arm/kvm/emulate.c +++ b/arch/arm/kvm/emulate.c @@ -278,13 +278,10 @@ struct coproc_emulate { static const struct coproc_emulate coproc_emulate[] = { /* - * L2CTLR access: - * - * Ignore writes completely. + * L2CTLR access (guest wants to know #CPUs). * * FIXME: Hack Alert: Read zero as default case. */ - { CRn( 9), CRm( 0), Op1( 1), Op2( 2), is32, WRITE, ignore_write}, { CRn( 9), CRm( 0), Op1( 1), Op2( 2), is32, READ, read_l2ctlr}, { CRn( 9), CRm(DF), Op1(DF), Op2(DF), is32, WRITE, ignore_write}, { CRn( 9), CRm(DF), Op1(DF), Op2(DF), is32, READ, read_zero}, -- How could I marry someone with more hair than me? http://baldalex.org