From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marc Zyngier Subject: Re: [PATCH v2] ARM: virt: fix wrong HSCTLR.EE bit setting Date: Tue, 01 Jul 2014 10:23:57 +0100 Message-ID: <53B27E2D.3000405@arm.com> References: <1404184138-12012-1-git-send-email-john.liuli@huawei.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Cc: "kvm@vger.kernel.org" , "kvmarm@lists.cs.columbia.edu" , "victor.kamensky@linaro.org" , "hanweidong@huawei.com" To: "john.liuli" Return-path: Received: from fw-tnat.austin.arm.com ([217.140.110.23]:21531 "EHLO collaborate-mta1.arm.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753510AbaGAJX7 (ORCPT ); Tue, 1 Jul 2014 05:23:59 -0400 In-Reply-To: <1404184138-12012-1-git-send-email-john.liuli@huawei.com> Sender: kvm-owner@vger.kernel.org List-ID: Hi Li, On 01/07/14 04:08, john.liuli wrote: > From: Li Liu > > HSCTLR.EE is defined as bit[25] referring to arm manual > DDI0606C.b(p1590). > > changes v1 -> v2: > 1)Use the canonical syntax for orr (orr r7, r7, #(1 << 25)) > 2)Use the ARM_BE8 macro instead of the open-coded CONFIG_CPU_BIG_ENDIAN Two things: - This log should not be part of the commit message, but placed after the "---" below (do a git format-patch, edit the file produced). - Post it also to linux-arm-kernel@lists.infradead.org, as this touches the core ARM code and should be reviewed there. > Signed-off-by: Li Liu > --- > arch/arm/kernel/hyp-stub.S | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-) > > diff --git a/arch/arm/kernel/hyp-stub.S b/arch/arm/kernel/hyp-stub.S > index 797b1a6..7e666cf 100644 > --- a/arch/arm/kernel/hyp-stub.S > +++ b/arch/arm/kernel/hyp-stub.S > @@ -134,9 +134,7 @@ ENTRY(__hyp_stub_install_secondary) > mcr p15, 4, r7, c1, c1, 3 @ HSTR > > THUMB( orr r7, #(1 << 30) ) @ HSCTLR.TE > -#ifdef CONFIG_CPU_BIG_ENDIAN > - orr r7, #(1 << 9) @ HSCTLR.EE > -#endif > +ARM_BE8(orr r7, r7, #(1 << 25)) @ HSCTLR.EE > mcr p15, 4, r7, c1, c0, 0 @ HSCTLR > > mrc p15, 4, r7, c1, c1, 1 @ HDCR > Other than that, it looks good to me. When you repost it, you can add: Reviewed-by: Marc Zyngier Thanks, M. -- Jazz is not dead. It just smells funny...