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 0D053C433FE for ; Fri, 18 Nov 2022 10:39:24 +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=A1UQ7DoOhTCTUd2Fp9ZM7D2OTAD3HsY2RK1mcYWhsrA=; b=rVUoq0vkiKT8ND s1xY/KznE6VOckbMddwgAJ7tRnHACZEOQGLLmpu46yDzxmR9eTZlBbMKV4/tpNBdLdw9fZGgv5bRU Y0UnErs7R//gvACf1cCzdlEFDvytO5HhFg6RjiWLnbmQQWiw4EN+4ZtUdX4OUK/MOzB456dGO7Jvw Yap8Ms1jTf+13INpUeN23CjVZ95WsXsrY3TiTnZ6qoj6rXqSuXi9iTUauHl05/NAt1iiaO+jMRHC7 7N4eUMdLtREFaT5pf5x7+F00p4yWwA0ZCvcqQHqWiO0lNGISMWH0Q0n1HAEz4v4/JRMV8O/1Hb7Ro Z6w+kJ7ANI5Bo7p0HG5w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ovylN-003PmW-KT; Fri, 18 Nov 2022 10:38:25 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ovylJ-003Pkl-SJ for linux-arm-kernel@lists.infradead.org; Fri, 18 Nov 2022 10:38:23 +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 AFE0662396; Fri, 18 Nov 2022 10:38:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7E26FC433D6; Fri, 18 Nov 2022 10:38:18 +0000 (UTC) Date: Fri, 18 Nov 2022 10:38:15 +0000 From: Catalin Marinas To: Ard Biesheuvel Cc: linux-arm-kernel@lists.infradead.org, Marc Zyngier , Will Deacon , Mark Rutland , Kees Cook , Mark Brown , Anshuman Khandual , Richard Henderson Subject: Re: [RFC PATCH 0/7] arm64: Enable LPA2 support for 16k pages Message-ID: References: <20221117132423.1252942-1-ardb@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20221117132423.1252942-1-ardb@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221118_023821_965897_7A8F7B5C X-CRM114-Status: GOOD ( 14.76 ) 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 Hi Ard, On Thu, Nov 17, 2022 at 02:24:16PM +0100, Ard Biesheuvel wrote: > Enable support for LPA2 when running with 16k pages. Unlike with 4k > pages, this does not require adding support for 5 level paging, but > beyond that, there is no fundamental difference between LPA2 support on > 4k or 16k pages. We have some patches already from Anshuman, targeting both 4K and 16K pages: https://lore.kernel.org/r/1632998116-11552-1-git-send-email-anshuman.khandual@arm.com I don't think they've been rebased on top of 6.1-rcX though. Could you please liaise with Anshuman and agree on a way forward? I'd rather only review a single series if they do the same thing. I have a preference for a more complete solution (4K and 16K) rather than just 16K pages. I think we can even ignore some corner cases like 39-bit VA (if anyone is asking, we could do it later but it doesn't seem realistic). And a question for Anshuman: do you plan to refresh your series? Thanks. -- Catalin _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel