From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4B24FC74A5B for ; Fri, 17 Mar 2023 15:09:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231548AbjCQPJA (ORCPT ); Fri, 17 Mar 2023 11:09:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56270 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231623AbjCQPIl (ORCPT ); Fri, 17 Mar 2023 11:08:41 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 410E731BC7 for ; Fri, 17 Mar 2023 08:08:21 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 2EF9A60A26 for ; Fri, 17 Mar 2023 15:08:04 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 470F4C433D2; Fri, 17 Mar 2023 15:08:01 +0000 (UTC) Date: Fri, 17 Mar 2023 15:07:58 +0000 From: Catalin Marinas To: Kristina Martsenko Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, Will Deacon , Marc Zyngier , Oliver Upton , James Morse , Suzuki K Poulose , Zenghui Yu , Mark Rutland , Mark Brown , Luis Machado , Vladimir Murzin , linux-kernel@vger.kernel.org Subject: Re: [PATCH 05/10] arm64: mops: don't disable host MOPS instructions from EL2 Message-ID: References: <20230216160012.272345-1-kristina.martsenko@arm.com> <20230216160012.272345-6-kristina.martsenko@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230216160012.272345-6-kristina.martsenko@arm.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Feb 16, 2023 at 04:00:07PM +0000, Kristina Martsenko wrote: > To allow nVHE host EL0 and EL1 to use FEAT_MOPS instructions, configure > EL2 to not cause these instructions to be treated as UNDEFINED. A VHE > host is unaffected by this control. > > Signed-off-by: Kristina Martsenko Reviewed-by: Catalin Marinas From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B867BC74A5B for ; Fri, 17 Mar 2023 15:08:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=8M9oKlhOKwEp0/RsI2b4R87Nd//Xky6CR1VHK3kfMSs=; b=uqm3CHSemGLftQ AOMCN91sMDKdez5IzigcbPHaFlRPx8o0wZnG/74UdvAWHYdwMhPZB/54kx+jjaeeTUEDgPYOnF1A7 lSA0Hp7ey7mZfzWkWF+KJ38WZwOKDBj/UJg+SLl7adWbEMf8UIjQ2VIa88RIHGQ58kvuL7nz3g3gC IrK+ovE1HKNvpWXa4FlsS5XJfnprf4GzcC/4FkNzVrkx7SzZsBaVHXrHKV59hypk6j4kttUhMMd/H jQpESoR/O9dtbGEud0zCp03XiGdQXIC8kLMZ+bmAWENUi4E6uGF7bjVaQepLZRlBuQuq+nbC3Lo0u l3mvBmmFMtrgfqNmsPOA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pdBge-002YuW-24; Fri, 17 Mar 2023 15:08:08 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pdBga-002Ys2-23 for linux-arm-kernel@lists.infradead.org; Fri, 17 Mar 2023 15:08:06 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 2EF72601C3; Fri, 17 Mar 2023 15:08:04 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 470F4C433D2; Fri, 17 Mar 2023 15:08:01 +0000 (UTC) Date: Fri, 17 Mar 2023 15:07:58 +0000 From: Catalin Marinas To: Kristina Martsenko Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, Will Deacon , Marc Zyngier , Oliver Upton , James Morse , Suzuki K Poulose , Zenghui Yu , Mark Rutland , Mark Brown , Luis Machado , Vladimir Murzin , linux-kernel@vger.kernel.org Subject: Re: [PATCH 05/10] arm64: mops: don't disable host MOPS instructions from EL2 Message-ID: References: <20230216160012.272345-1-kristina.martsenko@arm.com> <20230216160012.272345-6-kristina.martsenko@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20230216160012.272345-6-kristina.martsenko@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230317_080804_712848_3FF035B6 X-CRM114-Status: UNSURE ( 9.13 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Feb 16, 2023 at 04:00:07PM +0000, Kristina Martsenko wrote: > To allow nVHE host EL0 and EL1 to use FEAT_MOPS instructions, configure > EL2 to not cause these instructions to be treated as UNDEFINED. A VHE > host is unaffected by this control. > > Signed-off-by: Kristina Martsenko Reviewed-by: Catalin Marinas _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel