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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 23EB2C47DA2 for ; Wed, 17 Jan 2024 20:29:54 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id AEFC76B0087; Wed, 17 Jan 2024 15:29:53 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id A9F846B008C; Wed, 17 Jan 2024 15:29:53 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 967686B0092; Wed, 17 Jan 2024 15:29:53 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 82C446B0087 for ; Wed, 17 Jan 2024 15:29:53 -0500 (EST) Received: from smtpin02.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 4ECD6C0695 for ; Wed, 17 Jan 2024 20:29:53 +0000 (UTC) X-FDA: 81689944266.02.6DB5E08 Received: from mail-ua1-f42.google.com (mail-ua1-f42.google.com [209.85.222.42]) by imf11.hostedemail.com (Postfix) with ESMTP id 8A3BD4000E for ; Wed, 17 Jan 2024 20:29:51 +0000 (UTC) Authentication-Results: imf11.hostedemail.com; dkim=pass header.d=google.com header.s=20230601 header.b=NEsJZxfk; spf=pass (imf11.hostedemail.com: domain of samitolvanen@google.com designates 209.85.222.42 as permitted sender) smtp.mailfrom=samitolvanen@google.com; dmarc=pass (policy=reject) header.from=google.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1705523391; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=YD575AqDWxtRQQng31p0N7tpxf/VKKoFokMvFPXs22A=; b=epCzcWXgU5QssR7/RuxPI7VdnXvQcySF9hOWFJmtgyN/y/gsMNmP3T67Hoag5UnaXo6rey PZy3vVm84t3Mr1XH32esGCAqbErTKhB5j6lk7YuyR19COxJ5r6E35XbVTAUBgVz58vR76U LP42GhrPzIvJKNYGevUiaOItHcEOu0Y= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1705523391; a=rsa-sha256; cv=none; b=LxnQjQdQqTaxTnSndo6xufhEOgVGFHUleD0fczByVT8KTzUz0b8OCAOW/nDBpNpkS62+Rq O5VJ/FFU7BO+HM6mau9/NtbV5yefS6+CMpjxu0FAQlN0/W1ZAzO4Dl9uxfOWs44YtxG8Dh zfuMnleoDOs5sKXdqdpWIyiN3MJ0OSk= ARC-Authentication-Results: i=1; imf11.hostedemail.com; dkim=pass header.d=google.com header.s=20230601 header.b=NEsJZxfk; spf=pass (imf11.hostedemail.com: domain of samitolvanen@google.com designates 209.85.222.42 as permitted sender) smtp.mailfrom=samitolvanen@google.com; dmarc=pass (policy=reject) header.from=google.com Received: by mail-ua1-f42.google.com with SMTP id a1e0cc1a2514c-7cc970f8156so3019329241.2 for ; Wed, 17 Jan 2024 12:29:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1705523390; x=1706128190; darn=kvack.org; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=YD575AqDWxtRQQng31p0N7tpxf/VKKoFokMvFPXs22A=; b=NEsJZxfktkKnz8+3bPOAJ+Q/T5fcLNIOeowS60IkMU7V1HWSkRO9C0QUhsf1OpCHst 49Dq55cfHUh/jMQXn+Ym14M2zoBABklhZUjAp8Is/gcdz86QJtyaG/BMWrNgfM1SyBbp fY5akmctlfQsBvTNfc4tsLI1qGY87J1tdEFek6IK6vPjIKaghnvFzP6nDQC7WUZEoDYF buDBAnsQk248ZDJ/SLpQjtC1aV/4Sr/SPmcvKvtasl5FARz8pS8KvsDXtp4YjCGqf0zK K1NkPAUXA6r4tqyFLfGYwcj6TBpyQxam80esTqtAa6+VM2qHprptIv/QYxZjmTYn0DkC 2Nfw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705523390; x=1706128190; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=YD575AqDWxtRQQng31p0N7tpxf/VKKoFokMvFPXs22A=; b=Jpi2IeDG33Wo+yq1c6Nnidpkf2SgBqnuexyMtkRC1+f2kjzxZVmTuEhU6r+iGpljVS LnjOInmt/FukfIS2hD+1dgyilg8CLnTYQ8pqMwgx/fkfbuf+k2MEg9EJ97Sd7bvAYa0d 1tfscTOTdmuEJFHj9Xcr6bzKFbKG3PDgyXD/YLpYvKBmEAg/waXepKCo9eF1bx7i22Q8 Z7NCbyly6WS5TJ8lPfjmfOmZ21DpCutIP6T5x3Q1bi3v88Rsh1LZYw22rTKxoEIN9fJM QhiFX0qxxE8VeGPeg7NjRKqZhAnsdn7HPpxKhZs0ZcwRAjCeyrmhn7wbEpQbWhK4o4DH MmuQ== X-Gm-Message-State: AOJu0YzQuOu+mBURnhNoWHuIEitwxaylAsgUmf8SxhFFCb3hT7XZQlrk c/Q/H3LPJEjEvQ6iFqUbY4J38xpJop9zqWHUm1096pvXlHyg X-Google-Smtp-Source: AGHT+IEcHVbqKvU1d7EVd9t6CRSCb7KpK6x0WFogReXb/nzS1/CfbAfHDdma8k5FrNqyvEeozP9wt5g6lskJL31I8Ig= X-Received: by 2002:a67:ef8b:0:b0:467:ddc7:e7c0 with SMTP id r11-20020a67ef8b000000b00467ddc7e7c0mr3765571vsp.17.1705523390532; Wed, 17 Jan 2024 12:29:50 -0800 (PST) MIME-Version: 1.0 References: <20230929211155.3910949-4-samitolvanen@google.com> In-Reply-To: From: Sami Tolvanen Date: Wed, 17 Jan 2024 12:29:12 -0800 Message-ID: Subject: Re: [PATCH 0/2] riscv: Increase mmap_rnd_bits_max on Sv48/57 To: Palmer Dabbelt Cc: Paul Walmsley , aou@eecs.berkeley.edu, akpm@linux-foundation.org, keescook@chromium.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, llvm@lists.linux.dev, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Stat-Signature: qpptxg5fjz96xpo4nnro741j35nyuq3k X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 8A3BD4000E X-Rspam-User: X-HE-Tag: 1705523391-302207 X-HE-Meta: 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 c+gZ+puJ OhsHaOiPZR5DcX6bzOFCulzrD0hdDxYRiTiJmsK55+A/9Fla28rFR6Qn5pyk3tJn+mQzaWGcEYvqnKS4Hvu0umpEBTpuJMHxW/ExS9KqY+fXUD7PWkooJzJvj/3pGtnOAJax95ZjaMJK0DF6mBi4M+0a77GwYqkzUFWLiNsxziAYqT8MkF+wBVT3ffUcGyOef7Fb6aXFFH19Z0UaRidiPU3d0DaKXamNHR6+IpP7Xp89HIi42A9rsXQd9/Tpv4FEG5ZmhQnE4bxNpxnYeZvswWubfHOYaAumwFBuDwDiekhm7F7d6fIt/+H3IgneIQyZ7qjr8C5iRu8Xw6Fwsnwjp6n2i3JObkISezQjs3KNvFEeTtwb5lndy0pCzzXwnqvfTCSGdL++PhKvbTp4ECoJWhMBRhhuF3PpItSaH X-Bogosity: Ham, tests=bogofilter, spamicity=0.004075, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Palmer, On Wed, Dec 6, 2023 at 5:14=E2=80=AFAM Palmer Dabbelt = wrote: > > On Fri, 29 Sep 2023 14:11:56 PDT (-0700), samitolvanen@google.com wrote: > > Hi all, > > > > We noticed that 64-bit RISC-V kernels limit mmap_rnd_bits to 24 > > even if the hardware supports a larger virtual address space size > > [1]. These two patches allow mmap_rnd_bits_max to be changed during > > init, and bumps up the maximum randomness if we end up setting up > > 4/5-level paging at boot. > > Sorry for missing this, I'm just poking through old stuff in patchwork. > As far as I can tell this is still relevant, the discussions are just on > the mmap() bits (but we'd already screwed that one up and have since > fixed it). > > So > > Reviewed-by: Palmer Dabbelt > Acked-by: Palmer Dabbelt > > in case someone else wants to take it, but I'm OK taking that MM patch > with Kees' review. Is this still on your radar for v6.8 or would you prefer me to resend the patches? Sami