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 A4140C7EE23 for ; Mon, 5 Jun 2023 15:45:48 +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=oi5o7fP+iUKdtDC4L8ghvZGAf/8huoUQKAJAfdTKnxU=; b=ROgu+okUg7tLMu jmfaQjuynsXjTbI7JLYg3JieUadM37XPYGC2Jx1bXdcrrmNqu/dUhyv3ala3D4LRPII2gTw56Swav xrRahD2fzbNcnn1ggsVeUnQEgUdwbrz9av0ViT4X8SBDcmH/pFAczFliiN1nCFdpMwXqHJxkCzpaI R/xD5M57O5DmCyf43kk3BnT2xEMm12l80a5OYN7M0YWNvUNcqXTEyWhYOhMnf8Qxia1WXaFAjTOX2 hJB6JH+DvRQhLw0TzQBfUL2/xy8i56Q86lj+1DBrW0NYiUQPEbCuXRI6yLWHEBS0VURlIcyoNNusU CqebxpByoRI9WADN5bbg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q6COZ-00G1nx-2k; Mon, 05 Jun 2023 15:45:23 +0000 Received: from out-31.mta1.migadu.com ([2001:41d0:203:375::1f]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q6COW-00G1mA-1N for linux-arm-kernel@lists.infradead.org; Mon, 05 Jun 2023 15:45:22 +0000 Date: Mon, 5 Jun 2023 15:45:10 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1685979914; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=+5LUtWzKmYjDV4nZKzC4q3Djt7pncEjD8QMEpJ4KCyA=; b=R5NBp7zZ7fiJGgGmahE2wkbha2vpqQfOgtOabW8PjJwXnaosJWHnULmmToS920oLU0j9ES DEOKTJK+7rtQvtvhIS3UP4Pj6JgDkZg65I4gS+iTsOdBUr0TzShGEMUXB+AAhDzMXFGjzv WQrK4vu1z4npD7q+hvPMu+N8pqIR9cs= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Oliver Upton To: Marc Zyngier Cc: Kristina Martsenko , linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, Catalin Marinas , Will Deacon , James Morse , Suzuki K Poulose , Zenghui Yu , Mark Rutland , Mark Brown , Luis Machado , Vladimir Murzin , linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 06/11] KVM: arm64: hide MOPS from guests Message-ID: References: <20230509142235.3284028-1-kristina.martsenko@arm.com> <20230509142235.3284028-7-kristina.martsenko@arm.com> <87ttvpndhx.wl-maz@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <87ttvpndhx.wl-maz@kernel.org> X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230605_084520_604976_FA47EDD7 X-CRM114-Status: GOOD ( 15.21 ) 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 Sat, Jun 03, 2023 at 09:42:18AM +0100, Marc Zyngier wrote: > On Tue, 09 May 2023 15:22:30 +0100, > Kristina Martsenko wrote: > > > > As FEAT_MOPS is not supported in guests yet, hide it from the ID > > registers for guests. > > > > The MOPS instructions are UNDEFINED in guests as HCRX_EL2.MSCEn is not > > set in HCRX_GUEST_FLAGS, and will take an exception to EL1 if executed. > > > > Acked-by: Catalin Marinas > > Signed-off-by: Kristina Martsenko > > This is very likely to clash with Jing's series that completely > reworks the whole idreg series, but as long as this is on its own > branch, we can deal with that. Yup, we will definitely want to get that ironed out. I'll pull Catalin's branch when this all gets queued up. Acked-by: Oliver Upton -- Thanks, Oliver _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel