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 BFC2AC25B45 for ; Mon, 23 Oct 2023 18:43:29 +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:MIME-Version:References:In-Reply-To: Subject:Cc:To:From:Message-ID:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=lqMgS8pbMBfX9xMdcWM7tGaq4G6e0j5WmmgNOxgPPTA=; b=du77XbgDvYDoSc /hPdqxAoC/HolaTLow4kl01kRfoI9VENJE4mE3WJkhY9cEDNb37BAx/abixxJq+VHfHTqL8gKqaI/ eN/eL8joeKD9UdfmuacVCVSrpVs++B7fzdvq8WqRxMXTY4rhps6TfPewXGUxuz1vhWWt9yEtwXovB 1Lt1lpY7THym/H2YEnwHz0squ7Z7HT6i2WYnvgvY9IRI4770tTcmvLP+qRSleV5+sSoYRtktuIvHr sNaYWFbiLYfUwQ0EykeojfMnSWU9/0QtZC2m4jscXuPb3dXQ7d3LlKDg+gWb5jzRBowhP0zKA1cyh wU84eFq1j3NCQ8ORNFzA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1quztM-0086cf-0k; Mon, 23 Oct 2023 18:43:08 +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 1quztK-0086bd-0H for linux-arm-kernel@lists.infradead.org; Mon, 23 Oct 2023 18:43:07 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 3FCE36274F; Mon, 23 Oct 2023 18:43:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DB62CC433C7; Mon, 23 Oct 2023 18:43:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1698086584; bh=I1Yd9vnfNsAv/azduvHiY8MJB6cod/LOydZBG4QHFv0=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=Kj2uA8getH3FCGVDMla4emXGRbVzm2TRcVs9SLA2W+IVJC/eya0bYW/2MF5+h+P1Q iEkAMb+MqC6ZupNpioSz5kEhzNgvGJllvHOezfpiCH7UxZ8yHYiLAnJWFIzcKS8EiE bsKFtg1OSHsNeHYbTy7K5vyTVq1+hqzvAIipqohvYaV3WqPX58LhE4imV9+chUplHf jVFbOVDwxtrWqB2cyxSlvShtRgPKUbrZNRClESTlLz4iAJ0seMiSfukS4akINu1j4N GoNC/XJeW2P5lxDS6TMXCRNqrOJMcLVzRohKt2XCaIPJofIfTa6MY+ejTGtVLe7ANc uFGTF2CONiLkA== Received: from sofa.misterjones.org ([185.219.108.64] helo=goblin-girl.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1quztG-006xIm-Ja; Mon, 23 Oct 2023 19:43:02 +0100 Date: Mon, 23 Oct 2023 19:43:02 +0100 Message-ID: <86o7gp41u1.wl-maz@kernel.org> From: Marc Zyngier To: Ard Biesheuvel Cc: linux-arm-kernel@lists.infradead.org, Ard Biesheuvel , Catalin Marinas , Will Deacon , Mark Rutland , Ryan Roberts , Anshuman Khandual , Kees Cook , Joey Gouly Subject: Re: [PATCH v4 57/61] arm64: kvm: Limit HYP VA and host S2 range to 48 bits when LPA2 is in effect In-Reply-To: <20230912141549.278777-120-ardb@google.com> References: <20230912141549.278777-63-ardb@google.com> <20230912141549.278777-120-ardb@google.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/29.1 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: ardb@google.com, linux-arm-kernel@lists.infradead.org, ardb@kernel.org, catalin.marinas@arm.com, will@kernel.org, mark.rutland@arm.com, ryan.roberts@arm.com, anshuman.khandual@arm.com, keescook@chromium.org, joey.gouly@arm.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231023_114306_167873_B3572A1B X-CRM114-Status: GOOD ( 14.83 ) 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 Tue, 12 Sep 2023 15:16:47 +0100, Ard Biesheuvel wrote: > > From: Ard Biesheuvel > > The KVM code needs more work to support 5 level paging with LPA2, so for > the time being, limit KVM to 48 bit addressing on 4k and 16k pagesize > configurations. This can be reverted once the LPA2 support for KVM is > merged. > > Signed-off-by: Ard Biesheuvel Acked-by: Marc Zyngier M. -- Without deviation from the norm, progress is not possible. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel