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 70EACC7EE2E for ; Mon, 12 Jun 2023 19:16:04 +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=g7oEwLz3fl+XAM3zm3hartIKe1M4/e19gfxSzBmzcAU=; b=lnSPLBb0NJ430J yNtc5iSy2Lnncvmyixb4AbEkPEZ9cYVrABWLBx3i9WSixrE9Bn8ppgpSnmzS7FJAOjqfSc5+HFgMR UOv4qAqkJTIRkb3wnFzQqT0JT8xBfoFfhFZ3XXnOVL2DLPTqdRfmrJrbHf1f722idwbJfnAE8deJz wjCJPJSpadfYg4kjikcsnnublABex77ax1rRsSb4p2E3w66o59RTiVWKLpG5aBPNDmCCJ0b2D6G/u PvNP9DEhGgz6hWCSCkE8KHKZa9AtMf2KrXDnWI5Ag+J93CIKwesstDvxSguLG4S9MZa80OzjQKWW6 +eyGyKHUOd9bsuCRVZdg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q8n0r-0054po-1O; Mon, 12 Jun 2023 19:15:37 +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 1q8n0p-0054pC-1F for linux-arm-kernel@lists.infradead.org; Mon, 12 Jun 2023 19:15:36 +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 6737462D5E; Mon, 12 Jun 2023 19:15:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E99BEC433EF; Mon, 12 Jun 2023 19:15:31 +0000 (UTC) Date: Mon, 12 Jun 2023 20:15:29 +0100 From: Catalin Marinas To: Marc Zyngier Cc: kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, James Morse , Suzuki K Poulose , Oliver Upton , Zenghui Yu , Quentin Perret , Will Deacon , Fuad Tabba Subject: Re: [PATCH v3 07/17] arm64: Use CPACR_EL1 format to set CPTR_EL2 when E2H is set Message-ID: References: <20230609162200.2024064-1-maz@kernel.org> <20230609162200.2024064-8-maz@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20230609162200.2024064-8-maz@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230612_121535_460581_A162C51F X-CRM114-Status: GOOD ( 11.58 ) 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 Fri, Jun 09, 2023 at 05:21:50PM +0100, Marc Zyngier wrote: > When HCR_EL2.E2H is set, the CPTR_EL2 register takes the CPACR_EL1 > format. Yes, this is good fun. > > Hack the bits of startup code that assume E2H=0 while setting up > CPTR_EL2 to make them grok the CPTR_EL1 format. > > Signed-off-by: Marc Zyngier Reviewed-by: Catalin Marinas _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel