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 7EC03C47DB7 for ; Fri, 19 Jan 2024 09:27:27 +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:Cc:To:Subject:Message-ID:Date:From: In-Reply-To:References:MIME-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=kqzB56PleEjY7dzQ7GKTBMEWSWnGm2rE4dB9svw0a7k=; b=zRspoGbZOF4NCC h0BZtGH+aFR6d4xQ3KxtBIYCVKqKNc/vGHv06XOir4TPgRoQ7EF1xeKxKt/6uO9v3QmsfbcIywSkA BIUfPJmOAYRlk0shaVJ9oIHT9vLFRk+oqa1Sc54v8GY/PSPtkZKEvjtijg0NKOM8ykXrgei7bqb3V yUPdqciSpOfIi8pDYM891ZEFMEQQckiiaEO9E2onOjHeu8U6m8vrwilpGHhzfCvunBo2iTxysZyrq J44iRD9EOTOKTvvmrQz7/48o2Dri+ug/tcHfhKO1sfaS0fjDVtKkK9PRrTCrYCM4HIpuJdJEzQA85 /0cWa5Y/w9prue+FvcVw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rQl9i-004xry-1s; Fri, 19 Jan 2024 09:27:18 +0000 Received: from mail-yb1-xb2b.google.com ([2607:f8b0:4864:20::b2b]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rQl9e-004xqc-1U for linux-riscv@lists.infradead.org; Fri, 19 Jan 2024 09:27:16 +0000 Received: by mail-yb1-xb2b.google.com with SMTP id 3f1490d57ef6-dc2308fe275so531275276.1 for ; Fri, 19 Jan 2024 01:27:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; t=1705656431; x=1706261231; darn=lists.infradead.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=PX3oyvjTSeaEmMA7BmGcrPiugjRL8juVncN6NIp0Uhw=; b=jZur4uVvEBF/VzgCR8sBc/3IxHaVGbx3fTMk5Q3OI+QfeuyvHZd/O5eQQ0/SJxAxCl MYM/fhStbrZ9oYB7xkUr4FaLomOEkXoVfdEz2HfIPBf5dnZYnFCwUsnaiTUFpvyHvR5d IOtydhR394SJJDKXV6Cxr0R7R2iUdUW+weoJXW2tPd0TVZiFrcB/Ey4jkb7pLuhrNqfU zGRm4MB97ddz3UeSI6ykpxs8NwINJvgf0SG1J4y7Fwb7chcsIQbmcjytE6OD7xFW6/1Y T8fajq5olyZZfx/YxIlo1GOLNQbgevZYIlXaMaFm4GjcFcRbkJd+oFmn0wF+N5z8nUdp Wx5g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705656431; x=1706261231; 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=PX3oyvjTSeaEmMA7BmGcrPiugjRL8juVncN6NIp0Uhw=; b=H1f6dFBYjQ66qkGHWq8W0aJTzN419BZcykMalseUTc7VbS8k93Avv6U6wqtjYOJNIk nK8JSOSiCsxwWvq/wkMM9CkvXIPITT2JzpTluqTBEtKGo4rOzLaMgXpGBW0jKF8aTqzd QYZcR42Uxqy3rZXBk65SCD6ZhN6TUJ2HxvG3uVSoRVd2c8lies4xOt4iL015/LGuzXzn xRgULqKNK1KBhUJT1S6Xc3BkLRVlnZQIj8GJ6oM9o0owJvIUGshExYC4ABfx3I9xJbFW hTdGcbWAZqxeTHO3mYgD/B7EthXezfkGG3pTsVJm5W1WqmWgzQPwNY+Uci+OTheJ4+jV Owlg== X-Gm-Message-State: AOJu0YyJGLSoa+AEFPHF7+rfZEEmyKR+73qpjjWbhEu6jPbmjvco/ekN r1pOBP0l2s4eMdTkEtgIY2EAGYNySmqfDstp2XX0HqmEH+iU1nIOZaTvzsMmlskfyWWxrEDk7jx dC6gMy/RB2ha3wGRsGkCDnR8OFP5lDPYTF3ORow== X-Google-Smtp-Source: AGHT+IFnB4ZjPfFgAynVnG8PcS3bLndBbDG8SKTtMgiDYr+D8XJYREVe4SCkVUjmR+ve+2tw/4wEl6cj595gux0wucE= X-Received: by 2002:a25:1003:0:b0:dc2:65e7:b616 with SMTP id 3-20020a251003000000b00dc265e7b616mr463094ybq.74.1705656431151; Fri, 19 Jan 2024 01:27:11 -0800 (PST) MIME-Version: 1.0 References: <20230316131711.1284451-1-alexghiti@rivosinc.com> <20240118082346.GB31078@hsinchu15> In-Reply-To: From: Nylon Chen Date: Fri, 19 Jan 2024 17:26:59 +0800 Message-ID: Subject: Re: Fwd: [PATCH v8 0/4] riscv: Use PUD/P4D/PGD pages for the linear mapping To: Alexandre Ghiti Cc: alex@ghiti.fr, apatel@ventanamicro.com, catalin.marinas@arm.com, will@kernel.org, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, robh+dt@kernel.org, frowand.list@gmail.com, rppt@kernel.org, akpm@linux-foundation.org, anup@brainfault.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, devicetree@vger.kernel.org, linux-mm@kvack.org, zong.li@sifive.com, nylon7717@gmail.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240119_012714_537858_0FC743CF X-CRM114-Status: GOOD ( 56.99 ) X-BeenThere: linux-riscv@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="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org QWxleGFuZHJlIEdoaXRpIDxhbGV4Z2hpdGlAcml2b3NpbmMuY29tPiDmlrwgMjAyNOW5tDHmnIgx OOaXpSDpgLHlm5sg5LiL5Y2IOTowMeWvq+mBk++8mgo+Cj4gSGkgTnlsb24sCkhpIEFsZXhhbmRy ZSwgdGhhbmtzIGZvciB5b3VyIGZlZWRiYWNrLAo+Cj4gT24gVGh1LCBKYW4gMTgsIDIwMjQgYXQg OToyM+KAr0FNIE55bG9uIENoZW4gPG55bG9uLmNoZW5Ac2lmaXZlLmNvbT4gd3JvdGU6Cj4gPgo+ ID4gPiBPbiAzLzIzLzIzIDE1OjU1LCBBbnVwIFBhdGVsIHdyb3RlOgo+ID4gPiA+IE9uIFRodSwg TWFyIDIzLCAyMDIzIGF0IDY6MjTigK9QTSBBbGV4YW5kcmUgR2hpdGkgPGFsZXhnaGl0aUByaXZv c2luYy5jb20+IHdyb3RlOgo+ID4gPiA+PiBIaSBBbnVwLAo+ID4gPiA+Pgo+ID4gPiA+PiBPbiBU aHUsIE1hciAyMywgMjAyMyBhdCAxOjE44oCvUE0gQW51cCBQYXRlbCA8YXBhdGVsQHZlbnRhbmFt aWNyby5jb20+IHdyb3RlOgo+ID4gPiA+Pj4gSGkgQWxleCwKPiA+ID4gPj4+Cj4gPiA+ID4+PiBP biBUaHUsIE1hciAxNiwgMjAyMyBhdCA2OjQ44oCvUE0gQWxleGFuZHJlIEdoaXRpIDxhbGV4Z2hp dGlAcml2b3NpbmMuY29tPiB3cm90ZToKPiA+ID4gPj4+PiBUaGlzIHBhdGNoc2V0IGludGVuZHMg dG8gaW1wcm92ZSB0bGIgdXRpbGl6YXRpb24gYnkgdXNpbmcgaHVnZXBhZ2VzIGZvcgo+ID4gPiA+ Pj4+IHRoZSBsaW5lYXIgbWFwcGluZy4KPiA+ID4gPj4+Pgo+ID4gPiA+Pj4+IEFzIHJlcG9ydGVk IGJ5IEFudXAgaW4gdjYsIHdoZW4gU1RSSUNUX0tFUk5FTF9SV1ggaXMgZW5hYmxlZCwgd2UgbXVz dAo+ID4gPiA+Pj4+IHRha2UgY2FyZSBvZiBpc29sYXRpbmcgdGhlIGtlcm5lbCB0ZXh0IGFuZCBy b2RhdGEgc28gdGhhdCB0aGV5IGFyZSBub3QKPiA+ID4gPj4+PiBtYXBwZWQgd2l0aCBhIFBVRCBt YXBwaW5nIHdoaWNoIHdvdWxkIHRoZW4gYXNzaWduIHdyb25nIHBlcm1pc3Npb25zIHRvCj4gPiA+ ID4+Pj4gdGhlIHdob2xlIHJlZ2lvbjogaXQgaXMgYWNoaWV2ZWQgYnkgaW50cm9kdWNpbmcgYSBu ZXcgbWVtYmxvY2sgQVBJLgo+ID4gPiA+Pj4+Cj4gPiA+ID4+Pj4gQW5vdGhlciBwYXRjaCBtYWtl cyB1c2Ugb2YgdGhpcyBuZXcgQVBJIGluIGFybTY0IHdoaWNoIHVzZWQgc29tZSBzb3J0IG9mCj4g PiA+ID4+Pj4gaGFjayB0byBzb2x2ZSB0aGlzIGlzc3VlOiBpdCB3YXMgYnVpbHQvYm9vdCB0ZXN0 ZWQgc3VjY2Vzc2Z1bGx5Lgo+ID4gPiA+Pj4+Cj4gPiA+ID4+Pj4gYmFzZS1jb21taXQtdGFnOiB2 Ni4zLXJjMQo+ID4gPiA+Pj4+Cj4gPiA+ID4+Pj4gdjg6Cj4gPiA+ID4+Pj4gLSBGaXggcnYzMiwg YXMgcmVwb3J0ZWQgYnkgQW51cAo+ID4gPiA+Pj4+IC0gRG8gbm90IG1vZGlmeSBtZW1ibG9ja19p c29sYXRlX3JhbmdlIGFuZCBmaXhlcyBjb21tZW50LCBhcyBzdWdnZXN0ZWQgYnkgTWlrZQo+ID4g PiA+Pj4+IC0gVXNlIHRoZSBuZXcgbWVtYmxvY2sgQVBJIGZvciBjcmFzaCBrZXJuZWwgdG9vIGlu IGFybTY0LCBhcyBzdWdnZXN0ZWQgYnkgQW5kcmV3Cj4gPiA+ID4+Pj4gLSBGaXggYXJtNjQgZG91 YmxlIG1hcHBpbmcgKHdoaWNoIHRvIG1lIGRpZCBub3Qgd29yayBpbiB2NyksIGJ1dCBlbmRzIHVw IG5vdAo+ID4gPiA+Pj4+ICAgIGJlaW5nIHByZXR0eSBhdCBhbGwsIHdpbGwgd2FpdCBmb3IgY29t bWVudHMgZnJvbSBhcm02NCByZXZpZXdlcnMsIGJ1dAo+ID4gPiA+Pj4+ICAgIHRoaXMgcGF0Y2gg Y2FuIGVhc2lseSBiZSBkcm9wcGVkIGlmIHRoZXkgZG8gbm90IHdhbnQgaXQuCj4gPiA+ID4+Pj4K PiA+ID4gPj4+PiB2NzoKPiA+ID4gPj4+PiAtIEZpeCBBbnVwIGJ1ZyByZXBvcnQgYnkgaW50cm9k dWNpbmcgbWVtYmxvY2tfaXNvbGF0ZV9tZW1vcnkgd2hpY2gKPiA+ID4gPj4+PiAgICBhbGxvd3Mg dXMgdG8gc3BsaXQgdGhlIG1lbWJsb2NrIG1hcHBpbmdzIGFuZCB0aGVuIGF2b2lkIHRvIG1hcCB0 aGUKPiA+ID4gPj4+PiAgICB0aGUgUFVEIHdoaWNoIGNvbnRhaW5zIHRoZSBrZXJuZWwgYXMgcmVh ZCBvbmx5Cj4gPiA+ID4+Pj4gLSBBZGQgYSBwYXRjaCB0byBhcm02NCB0byB1c2UgdGhpcyBuZXds eSBpbnRyb2R1Y2VkIEFQSQo+ID4gPiA+Pj4+Cj4gPiA+ID4+Pj4gdjY6Cj4gPiA+ID4+Pj4gLSBx dWlldCBMTFZNIHdhcm5pbmcgYnkgY2FzdGluZyBwaHlzX3JhbV9iYXNlIGludG8gYW4gdW5zaWdu ZWQgbG9uZwo+ID4gPiA+Pj4+Cj4gPiA+ID4+Pj4gdjU6Cj4gPiA+ID4+Pj4gLSBGaXggbm9tbXUg YnVpbGRzIGJ5IGdldHRpbmcgcmlkIG9mIHJpc2N2X3Bmbl9iYXNlIGluIHBhdGNoIDEsIHRoYW5r cwo+ID4gPiA+Pj4+ICAgIENvbm9yCj4gPiA+ID4+Pj4gLSBBZGQgUkIgZnJvbSBBbmRyZXcKPiA+ ID4gPj4+Pgo+ID4gPiA+Pj4+IHY0Ogo+ID4gPiA+Pj4+IC0gUmViYXNlIG9uIHRvcCBvZiB2Ni4y LXJjMywgYXMgbm90ZWQgYnkgQ29ub3IKPiA+ID4gPj4+PiAtIEFkZCBBY2tlZC1ieSBSb2IKPiA+ ID4gPj4+Pgo+ID4gPiA+Pj4+IHYzOgo+ID4gPiA+Pj4+IC0gQ2hhbmdlIHRoZSBjb21tZW50IGFi b3V0IGluaXRyZF9zdGFydCBWQSBjb252ZXJzaW9uIHNvIHRoYXQgaXQgZml0cwo+ID4gPiA+Pj4+ ICAgIEFSTTY0IGFuZCBSSVNDVjY0IChhbmQgb3RoZXJzIGluIHRoZSBmdXR1cmUgaWYgbmVlZGVk KSwgYXMgc3VnZ2VzdGVkCj4gPiA+ID4+Pj4gICAgYnkgUm9iCj4gPiA+ID4+Pj4KPiA+ID4gPj4+ PiB2MjoKPiA+ID4gPj4+PiAtIEFkZCBhIGNvbW1lbnQgb24gd2h5IFJJU0NWNjQgZG9lcyBub3Qg bmVlZCB0byBzZXQgaW5pdHJkX3N0YXJ0L2VuZCB0aGF0Cj4gPiA+ID4+Pj4gICAgZWFybHkgaW4g dGhlIGJvb3QgcHJvY2VzcywgYXMgYXNrZWQgYnkgUm9iCj4gPiA+ID4+Pj4KPiA+ID4gPj4+PiBB bGV4YW5kcmUgR2hpdGkgKDQpOgo+ID4gPiA+Pj4+ICAgIHJpc2N2OiBHZXQgcmlkIG9mIHJpc2N2 X3Bmbl9iYXNlIHZhcmlhYmxlCj4gPiA+ID4+Pj4gICAgbW06IEludHJvZHVjZSBtZW1ibG9ja19p c29sYXRlX21lbW9yeQo+ID4gPiA+Pj4+ICAgIGFybTY0OiBNYWtlIHVzZSBvZiBtZW1ibG9ja19p c29sYXRlX21lbW9yeSBmb3IgdGhlIGxpbmVhciBtYXBwaW5nCj4gPiA+ID4+Pj4gICAgcmlzY3Y6 IFVzZSBQVUQvUDREL1BHRCBwYWdlcyBmb3IgdGhlIGxpbmVhciBtYXBwaW5nCj4gPiA+ID4+PiBL ZXJuZWwgYm9vdCBmaW5lIG9uIFJWNjQgYnV0IHRoZXJlIGlzIGEgZmFpbHVyZSB3aGljaCBpcyBz dGlsbCBub3QKPiA+ID4gPj4+IGFkZHJlc3NlZC4gWW91IGNhbiBzZWUgdGhpcyBmYWlsdXJlIGFz IGZvbGxvd2luZyBtZXNzYWdlIGluCj4gPiA+ID4+PiBrZXJuZWwgYm9vdCBsb2c6Cj4gPiA+ID4+ PiAgICAgIDAuMDAwMDAwXSBGYWlsZWQgdG8gYWRkIGEgU3lzdGVtIFJBTSByZXNvdXJjZSBhdCA4 MDIwMDAwMAo+ID4gPiA+PiBIbW1tIEkgZG9uJ3QgZ2V0IHRoYXQgaW4gYW55IG9mIG15IHRlc3Qg Y29uZmlncywgd291bGQgeW91IG1pbmQKPiA+ID4gPj4gc2hhcmluZyB5b3VycyBhbmQgeW91ciBx ZW11IGNvbW1hbmQgbGluZT8KPiA+ID4gPiBUcnkgYWxleGdoaXRpX3Rlc3QgYnJhbmNoIGF0Cj4g PiA+ID4gaHR0cHM6Ly9naXRodWIuY29tL2F2cGF0ZWwvbGludXguZ2l0Cj4gPiA+ID4KPiA+ID4g PiBJIGFtIGJ1aWxkaW5nIHRoZSBrZXJuZWwgdXNpbmcgZGVmY29uZmlnIGFuZCBteSByb290ZnMg aXMKPiA+ID4gPiBiYXNlZCBvbiBidXN5Ym94Lgo+ID4gPiA+Cj4gPiA+ID4gTXkgUUVNVSBjb21t YW5kIGlzOgo+ID4gPiA+IHFlbXUtc3lzdGVtLXJpc2N2NjQgLU0gdmlydCAtbSA1MTJNIC1ub2dy YXBoaWMgLWJpb3MKPiA+ID4gPiBvcGVuc2JpL2J1aWxkL3BsYXRmb3JtL2dlbmVyaWMvZmlybXdh cmUvZndfZHluYW1pYy5iaW4gLWtlcm5lbAo+ID4gPiA+IC4vYnVpbGQtcmlzY3Y2NC9hcmNoL3Jp c2N2L2Jvb3QvSW1hZ2UgLWFwcGVuZCAicm9vdD0vZGV2L3JhbSBydwo+ID4gPiA+IGNvbnNvbGU9 dHR5UzAgZWFybHljb24iIC1pbml0cmQgLi9yb290ZnNfcmlzY3Y2NC5pbWcgLXNtcCA0Cj4gPiA+ Cj4gPiA+Cj4gPiA+IFNvIHNwbGl0dGluZyBtZW1ibG9jay5tZW1vcnkgaXMgdGhlIGN1bHByaXQs IGl0ICJjb25mdXNlcyIgdGhlIHJlc291cmNlcwo+ID4gPiBhZGRpdGlvbiBhbmQgSSBjYW4gb25s eSBmaW5kIGhhY2t5IHdheXMgdG8gZml4IHRoYXQuLi4KPiA+IEhpIEFsZXhhbmRyZSwKPiA+Cj4g PiBXZSBlbmNvdW50ZXJlZCB0aGUgc2FtZSBlcnJvciBhcyBBbnVwLiBBZnRlciBhZGRpbmcgeW91 ciBwYXRjaAo+ID4gKDMzMzUwNjhmODcyMTdlYTU5ZDA4ZjQ2MjE4N2RjODU2NjUyZWVhMTUpLCB3 ZSB3aWxsIG5vdCBlbmNvdW50ZXIgdGhlCj4gPiBlcnJvciBhZ2Fpbi4KPiA+Cj4gPiBXaGF0IEkg aGF2ZSBvYnNlcnZlZCBzbyBmYXIgaXMKPiA+Cj4gPiAtIGJlZm9yZSB5b3VyIHBhdGNoCj4gPiBX aGVuIG1lcmdpbmcgY29uc2VjdXRpdmUgbWVtYmxvY2tzLCBpZiB0aGUgbWVtYmxvY2sgdHlwZXMg YXJlIGRpZmZlcmVudCwKPiA+IHRoZXkgd2lsbCBiZSBtZXJnZWQgaW50byByZXNlcnZlZAo+ID4g LSBhZnRlciB5b3VyIHBhdGNoCj4gPiBXaGVuIGNvbnNlY3V0aXZlIG1lbWJsb2NrcyBhcmUgbWVy Z2VkLCBpZiB0aGUgbWVtYmxvY2sgdHlwZXMgYXJlCj4gPiBkaWZmZXJlbnQsIHRoZXkgd2lsbCBi ZSBtZXJnZWQgaW50byBtZW1vcnkuCj4gPgo+ID4gU3VjaCBhIHJlc3VsdCB3aWxsIGNhdXNlIHRo ZSBtZW1vcnkgbG9jYXRpb24gb2YgT3BlblNCSSB0byBiZSBjaGFuZ2VkCj4gPiBmcm9tIHJlc2Vy dmVkIHRvIG1lbW9yeS4gV2lsbCB0aGlzIGhhdmUgYW55IHNpZGUgZWZmZWN0cz8KPgo+IEkgZ3Vl c3MgaXQgd2lsbCBlbmQgdXAgaW4gdGhlIG1lbW9yeSBwb29sIGFuZCBwYWdlcyBmcm9tIG9wZW5T QkkKPiByZWdpb24gd2lsbCBiZSBhbGxvY2F0ZWQsIHNvIHdlIHNob3VsZCBzZWUgdmVyeSBxdWlj a2x5IGJhZCBzdHVmZgo+IGhhcHBlbmluZyAoZWl0aGVyIFBNUCB2aW9sYXRpb24gb3IgTS1tb2Rl IGVjYWxsIG5ldmVyCj4gcmV0dXJuaW5nL3RyYXBwaW5nL2V0YykuCj4KPiBCdXQgSSBkb24ndCBv YnNlcnZlIHRoZSBzYW1lIHRoaW5nLCBJIGFsd2F5cyBzZWUgdGhlIG9wZW5TQkkgcmVnaW9uCj4g YmVpbmcgcmVzZXJ2ZWQ6Cj4KPiByZXNlcnZlZFsweDBdIFsweDAwMDAwMDAwODAwMDAwMDAtMHgw MDAwMDAwMDgwMDdmZmZmXSwKPiAweDAwMDAwMDAwMDAwODAwMDAgYnl0ZXMgZmxhZ3M6IDB4MAo+ Cj4gQ2FuIHlvdSBlbGFib3JhdGUgYSBiaXQgbW9yZSBhYm91dCAiV2hlbiBjb25zZWN1dGl2ZSBt ZW1ibG9ja3MgYXJlCj4gbWVyZ2VkLCBpZiB0aGUgbWVtYmxvY2sgdHlwZXMgYXJlIGRpZmZlcmVu dCwgdGhleSB3aWxsIGJlIG1lcmdlZCBpbnRvCj4gbWVtb3J5Ij8gV2hlcmUvd2hlbiBkb2VzIHRo aXMgbWVyZ2UgaGFwcGVuPyBDYW4geW91IGdpdmUgbWUgYSBjb25maWcKPiBmaWxlIGFuZCBhIGtl cm5lbCByZXZpc2lvbiBzbyB0aGF0IEkgY2FuIHRha2UgYSBsb29rPwpPaywgSWYgeW91IHdhbnQg dG8gcmVwcm9kdWNlIHRoZSBzYW1lIHJlc3VsdHMgeW91IGp1c3QgbmVlZCB0byBtb2RpZnkgT3Bl blNCSQoKWyBsaWIvc2JpL3NiaV9kb21haW4uYyBdCisjZGVmaW5lIFRFU1RfU0laRSAweDIwMDAw MAoKLSAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIChzY3JhdGNoLT5md19zaXplIC0g c2NyYXRjaC0+Zndfcndfb2Zmc2V0KSwKKyAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg IChURVNUX1NJWkUgLSBzY3JhdGNoLT5md19yd19vZmZzZXQpLAoKSW4gYWRkaXRpb24sIHlvdSBj YW4gaW5zZXJ0IGNoZWNrcyBpbiB0aGUga2VybmVsIG1lcmdlZCBmdW5jdGlvbgpbIG1tL21lbWJs b2NrLmMgXQpzdGF0aWMgdm9pZCBfX2luaXRfbWVtYmxvY2sgbWVtYmxvY2tfbWVyZ2VfcmVnaW9u cyhzdHJ1Y3QgbWVtYmxvY2tfdHlwZSAqdHlwZSkKICAgICAgICB3aGlsZSAoaSA8IHR5cGUtPmNu dCAtIDEpIHsKICAgICAgICAgLi4uCiAgICAgICAgICAgICAgICAvKiBtb3ZlIGZvcndhcmQgZnJv bSBuZXh0ICsgMSwgaW5kZXggb2Ygd2hpY2ggaXMgaSArIDIgKi8KICAgICAgICAgICAgICAgIG1l bW1vdmUobmV4dCwgbmV4dCArIDEsICh0eXBlLT5jbnQgLSAoaSArIDIpKSAqIHNpemVvZigqbmV4 dCkpOwogICAgICAgICAgICAgICAgdHlwZS0+Y250LS07CiAgICAgICAgfQorICAgICAgIHByX2lu Zm8oIk1lcmdlZCBtZW1ibG9ja190eXBlOiBjbnQgPSAlbHUsIG1heCA9ICVsdSwKdG90YWxfc2l6 ZSA9IDB4JWxseFxuIix0eXBlLT5jbnQsIHR5cGUtPm1heCwgdHlwZS0+dG90YWxfc2l6ZSk7Cisg ICAgICAgZm9yIChpID0gMDsgaSA8IHR5cGUtPmNudDsgaSsrKSB7CisgICAgICAgICAgICAgICBj b25zdCBjaGFyICpyZWdpb25fdHlwZSA9Cm1lbWJsb2NrX2lzX21lbW9yeSh0eXBlLT5yZWdpb25z W2ldLmJhc2UpID8gIm1lbW9yeSIgOiAicmVzZXJ2ZSI7CisgICAgICAgICAgICAgICBwcl9pbmZv KCJSZWdpb24gJWQ6IGJhc2UgPSAweCVsbHgsIHNpemUgPSAweCVsbHgsIHR5cGUKPSAlc1xuIiwg aSwgdHlwZS0+cmVnaW9uc1tpXS5iYXNlLCB0eXBlLT5yZWdpb25zW2ldLnNpemUsCnJlZ2lvbl90 eXBlKTsKKyAgICAgICB9CiB9ClRoaXMgaXMga2VybmVsIGJvb3QgbG9nCi0gYmVmb3JlIHlvdXIg cGF0Y2gKLi4uClsgICAgMC4wMDAwMDBdIE9GOiBmZHQ6IFJlc2VydmluZyBtZW1vcnk6IGJhc2Ug PSAweDgwMDAwMDAwLCBzaXplID0gMHgyMDAwMDAKWyAgICAwLjAwMDAwMF0gTWVyZ2VkIG1lbWJs b2NrX3R5cGU6IGNudCA9IDQsIG1heCA9IDEyOCwgdG90YWxfc2l6ZSA9IDB4MTYyODUwMQpbICAg IDAuMDAwMDAwXSBSZWdpb24gMDogYmFzZSA9IDB4ODAwMDAwMDAsIHNpemUgPSAweDE2MDAwMDAs IHR5cGUgPSByZXNlcnZlCi4uLgoKLSBhZnRlciB5b3VyIHBhdGNoCi4uLgpbICAgIDAuMDAwMDAw XSBPRjogZmR0OiBSZXNlcnZpbmcgbWVtb3J5OiBiYXNlID0gMHg4MDAwMDAwMCwgc2l6ZSA9IDB4 MjAwMDAwClsgICAgMC4wMDAwMDBdIE1lcmdlZCBtZW1ibG9ja190eXBlOiBjbnQgPSA0LCBtYXgg PSAxMjgsIHRvdGFsX3NpemUgPSAweDE4MGM0MmUKWyAgICAwLjAwMDAwMF0gUmVnaW9uIDA6IGJh c2UgPSAweDgwMDAwMDAwLCBzaXplID0gMHgxODAwMDAwLCB0eXBlID0gbWVtb3J5Ci4uLgpbICAg IDAuMDAwMDAwXSBGYWlsZWQgdG8gYWRkIGEgc3lzdGVtIFJBTSByZXNvdXJjZSBhdCA4MDIwMDAw MAouLi4KPgo+IFRoYW5rcywKPgo+IEFsZXgKPgo+ID4gPgo+ID4gPiBTbyBnaXZlbiB0aGF0IHRo ZSBhcm02NCBwYXRjaCB3aXRoIHRoZSBuZXcgQVBJIGlzIG5vdCBwcmV0dHkgYW5kIHRoYXQKPiA+ ID4gdGhlIHNpbXBsZXN0IHNvbHV0aW9uIGlzIHRvIHJlLW1lcmdlIHRoZSBtZW1ibG9jayByZWdp b25zIGFmdGVyd2FyZHMKPiA+ID4gKHdoaWNoIGlzIGRvbmUgYnkgbWVtYmxvY2tfY2xlYXJfbm9t YXApLCBJJ2xsIGRyb3AgdGhlIG5ldyBBUEkgYW5kIHRoZQo+ID4gPiBhcm02NCBwYXRjaCB0byB1 c2UgdGhlIG5vbWFwIEFQSSBsaWtlIGFybTY0OiBJJ2xsIHRha2UgYWR2YW50YWdlIG9mIHRoYXQK PiA+ID4gdG8gY2xlYW4gc2V0dXBfdm1fZmluYWwgd2hpY2ggSSBoYXZlIHdhbnRlZCB0byBkbyBm b3IgYSBsb25nIHRpbWUuCj4gPiA+Cj4gPiA+IEBNaWtlIFRoYW5rcyBmb3IgeW91IHJldmlld3Mh Cj4gPiA+Cj4gPiA+IEBBbnVwIFRoYW5rcyBmb3IgYWxsIHlvdXIgYnVnIHJlcG9ydHMgb24gdGhp cyBwYXRjaHNldCwgSSBoYXZlIHRvCj4gPiA+IGltcHJvdmUgbXkgdGVzdCBmbG93IChpdCBpcyBp biB0aGUgd29yayA6KSkuCj4gPiA+Cj4gPiA+Cj4gPiA+ID4gUmVnYXJkcywKPiA+ID4gPiBBbnVw Cj4gPiA+ID4KPiA+ID4gPj4gVGhhbmtzCj4gPiA+ID4+Cj4gPiA+ID4+PiBSZWdhcmRzLAo+ID4g PiA+Pj4gQW51cAo+ID4gPiA+Pj4KPiA+ID4gPj4+PiAgIGFyY2gvYXJtNjQvbW0vbW11LmMgICAg ICAgICAgIHwgMjUgKysrKysrKysrKystLS0tLS0KPiA+ID4gPj4+PiAgIGFyY2gvcmlzY3YvaW5j bHVkZS9hc20vcGFnZS5oIHwgMTkgKysrKysrKysrKystLQo+ID4gPiA+Pj4+ICAgYXJjaC9yaXNj di9tbS9pbml0LmMgICAgICAgICAgfCA1MyArKysrKysrKysrKysrKysrKysrKysrKysrKysrLS0t LS0tLQo+ID4gPiA+Pj4+ICAgYXJjaC9yaXNjdi9tbS9waHlzYWRkci5jICAgICAgfCAxNiArKysr KysrKysrKwo+ID4gPiA+Pj4+ICAgZHJpdmVycy9vZi9mZHQuYyAgICAgICAgICAgICAgfCAxMSAr KysrLS0tLQo+ID4gPiA+Pj4+ICAgaW5jbHVkZS9saW51eC9tZW1ibG9jay5oICAgICAgfCAgMSAr Cj4gPiA+ID4+Pj4gICBtbS9tZW1ibG9jay5jICAgICAgICAgICAgICAgICB8IDIwICsrKysrKysr KysrKysKPiA+ID4gPj4+PiAgIDcgZmlsZXMgY2hhbmdlZCwgMTE5IGluc2VydGlvbnMoKyksIDI2 IGRlbGV0aW9ucygtKQo+ID4gPiA+Pj4+Cj4gPiA+ID4+Pj4gLS0KPiA+ID4gPj4+PiAyLjM3LjIK PiA+ID4gPj4+Pgo+ID4gPiA+IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fCj4gPiA+ID4gbGludXgtcmlzY3YgbWFpbGluZyBsaXN0Cj4gPiA+ID4gbGludXgt cmlzY3ZAbGlzdHMuaW5mcmFkZWFkLm9yZwo+ID4gPiA+IGh0dHA6Ly9saXN0cy5pbmZyYWRlYWQu b3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtcmlzY3YKPiA+ID4KPiA+ID4gX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KPiA+ID4gbGludXgtcmlzY3YgbWFp bGluZyBsaXN0Cj4gPiA+IGxpbnV4LXJpc2N2QGxpc3RzLmluZnJhZGVhZC5vcmcKPiA+ID4gaHR0 cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1yaXNjdgoKX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgtcmlzY3Yg bWFpbGluZyBsaXN0CmxpbnV4LXJpc2N2QGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3Rz LmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1yaXNjdgo= From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yb1-f174.google.com (mail-yb1-f174.google.com [209.85.219.174]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4A82F28E04 for ; Fri, 19 Jan 2024 09:27:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.174 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705656434; cv=none; b=W8tb7nIpZD4xW+emXhARSjuexcF0qTDk8v42picMgNk0lGcrlCQULqWURMbMp+JcUPN1r2Tn4IUWqAJ3QKr8n/A8ujXyg4oxt0l+elCanqrAns6ouFHDOgCNrfyYkkEXQdLctBL4GNx2nNvWk67W3D0AHr4T1GCUckBmd6LReJs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705656434; c=relaxed/simple; bh=Zyl+3TykfwIq/us1dz5F3GDNHUhcesXp1Emt+brcBpg=; h=MIME-Version:References:In-Reply-To:From:Date:Message-ID:Subject: To:Cc:Content-Type; b=nsROmQFQIy7uUqA0lsKi624CFXBUGZf6BgK8taVt7Wy6KB/POzDILaahB1Xl9Plllx7AY0/T1Lu9fZYThoukuMIFxybJzrEaHKU5J59zOdt3Xt74nR9fK2z7Mxn1iRGwTXztPUUkEwOFRIbTbCQIvrkV/b/XXgLOzGR4z+YoRgs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=sifive.com; spf=pass smtp.mailfrom=sifive.com; dkim=pass (2048-bit key) header.d=sifive.com header.i=@sifive.com header.b=dLSkOKMb; arc=none smtp.client-ip=209.85.219.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=sifive.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sifive.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sifive.com header.i=@sifive.com header.b="dLSkOKMb" Received: by mail-yb1-f174.google.com with SMTP id 3f1490d57ef6-dc261316b0dso514553276.3 for ; Fri, 19 Jan 2024 01:27:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; t=1705656431; x=1706261231; darn=vger.kernel.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=PX3oyvjTSeaEmMA7BmGcrPiugjRL8juVncN6NIp0Uhw=; b=dLSkOKMbe6lsyXqUTxif3AT6U2BBDreuoyQ6jSJTregI+n6FSsEXESvPRU6TwVNYif +K6tEd2IpuE5y9I3EyFv8DRRSh42ssNj3uaFBVYQFW73BEESgaFDCodGLT3//KNBKTId x8bdCdZEgQWD1vz7d1oIAMUTdP+RNH8/J3lyaYBVNiWor59Ia4ZxOCXEntecoCizeg1C b6fT7g/7ViWQH3RFrecjPLTngvL5xfoHUfuG7509FgiRETFRqvoHe4qlolGR2eA3jPBW FbwyqwysmnJU/RYFM04QdcX958wG3kDKbWNOZUerfyUzQTa2BdhO7V2c3jn6iEynayft qydg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705656431; x=1706261231; 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=PX3oyvjTSeaEmMA7BmGcrPiugjRL8juVncN6NIp0Uhw=; b=XFmw5rE3AdhzgLAuaIU+gbF9mP5te5dPLO0r847+DgOoPlDGh5PIVZ7/TTZGQMEknt r7pV002lf7MAYXCYTwKF45EJR2XhBzAd5ZcSQBiuQAl47YvLShnLQJdLDj3Z1HqW7/KC 4T66VuA9IMOM6WWhbKH4vX1S4WOoyesfLV5basT12EvnD7ujnBfi+e8W+VDldIeGuTcT vJymBk6Ydj4GMtBoaUUKKG7lTDk1XxuQ6WCNji+WiEP4o/1Rj0Y7rM0tbI1Mq2CkfO6w hjs9LiOPr7Bl9N2hGKHXwB132ur5sVi5d20ujxQepZBGbbpgrrhlBJilZ3uv1zebVXxj r/IA== X-Gm-Message-State: AOJu0YwZeZVyRCIyKy70kwo/pfKVIrcYbqs1aVFa8TYjCaMkZcr90dKx cD7Ta6/NwhjZZgD4eIxed7eUzM20ZWMWhpcaaVAIdAmtE8FoLh1kznCAvszCFSJCOrEIdJcKyAQ kmBQP3g98s5NNj3sMxRsCxE2Zs5AGMFmdBSR6qA== X-Google-Smtp-Source: AGHT+IFnB4ZjPfFgAynVnG8PcS3bLndBbDG8SKTtMgiDYr+D8XJYREVe4SCkVUjmR+ve+2tw/4wEl6cj595gux0wucE= X-Received: by 2002:a25:1003:0:b0:dc2:65e7:b616 with SMTP id 3-20020a251003000000b00dc265e7b616mr463094ybq.74.1705656431151; Fri, 19 Jan 2024 01:27:11 -0800 (PST) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20230316131711.1284451-1-alexghiti@rivosinc.com> <20240118082346.GB31078@hsinchu15> In-Reply-To: From: Nylon Chen Date: Fri, 19 Jan 2024 17:26:59 +0800 Message-ID: Subject: Re: Fwd: [PATCH v8 0/4] riscv: Use PUD/P4D/PGD pages for the linear mapping To: Alexandre Ghiti Cc: alex@ghiti.fr, apatel@ventanamicro.com, catalin.marinas@arm.com, will@kernel.org, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, robh+dt@kernel.org, frowand.list@gmail.com, rppt@kernel.org, akpm@linux-foundation.org, anup@brainfault.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, devicetree@vger.kernel.org, linux-mm@kvack.org, zong.li@sifive.com, nylon7717@gmail.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Alexandre Ghiti =E6=96=BC 2024=E5=B9=B41=E6=9C=881= 8=E6=97=A5 =E9=80=B1=E5=9B=9B =E4=B8=8B=E5=8D=889:01=E5=AF=AB=E9=81=93=EF= =BC=9A > > Hi Nylon, Hi Alexandre, thanks for your feedback, > > On Thu, Jan 18, 2024 at 9:23=E2=80=AFAM Nylon Chen wrote: > > > > > On 3/23/23 15:55, Anup Patel wrote: > > > > On Thu, Mar 23, 2023 at 6:24=E2=80=AFPM Alexandre Ghiti wrote: > > > >> Hi Anup, > > > >> > > > >> On Thu, Mar 23, 2023 at 1:18=E2=80=AFPM Anup Patel wrote: > > > >>> Hi Alex, > > > >>> > > > >>> On Thu, Mar 16, 2023 at 6:48=E2=80=AFPM Alexandre Ghiti wrote: > > > >>>> This patchset intends to improve tlb utilization by using hugepa= ges for > > > >>>> the linear mapping. > > > >>>> > > > >>>> As reported by Anup in v6, when STRICT_KERNEL_RWX is enabled, we= must > > > >>>> take care of isolating the kernel text and rodata so that they a= re not > > > >>>> mapped with a PUD mapping which would then assign wrong permissi= ons to > > > >>>> the whole region: it is achieved by introducing a new memblock A= PI. > > > >>>> > > > >>>> Another patch makes use of this new API in arm64 which used some= sort of > > > >>>> hack to solve this issue: it was built/boot tested successfully. > > > >>>> > > > >>>> base-commit-tag: v6.3-rc1 > > > >>>> > > > >>>> v8: > > > >>>> - Fix rv32, as reported by Anup > > > >>>> - Do not modify memblock_isolate_range and fixes comment, as sug= gested by Mike > > > >>>> - Use the new memblock API for crash kernel too in arm64, as sug= gested by Andrew > > > >>>> - Fix arm64 double mapping (which to me did not work in v7), but= ends up not > > > >>>> being pretty at all, will wait for comments from arm64 review= ers, but > > > >>>> this patch can easily be dropped if they do not want it. > > > >>>> > > > >>>> v7: > > > >>>> - Fix Anup bug report by introducing memblock_isolate_memory whi= ch > > > >>>> allows us to split the memblock mappings and then avoid to ma= p the > > > >>>> the PUD which contains the kernel as read only > > > >>>> - Add a patch to arm64 to use this newly introduced API > > > >>>> > > > >>>> v6: > > > >>>> - quiet LLVM warning by casting phys_ram_base into an unsigned l= ong > > > >>>> > > > >>>> v5: > > > >>>> - Fix nommu builds by getting rid of riscv_pfn_base in patch 1, = thanks > > > >>>> Conor > > > >>>> - Add RB from Andrew > > > >>>> > > > >>>> v4: > > > >>>> - Rebase on top of v6.2-rc3, as noted by Conor > > > >>>> - Add Acked-by Rob > > > >>>> > > > >>>> v3: > > > >>>> - Change the comment about initrd_start VA conversion so that it= fits > > > >>>> ARM64 and RISCV64 (and others in the future if needed), as su= ggested > > > >>>> by Rob > > > >>>> > > > >>>> v2: > > > >>>> - Add a comment on why RISCV64 does not need to set initrd_start= /end that > > > >>>> early in the boot process, as asked by Rob > > > >>>> > > > >>>> Alexandre Ghiti (4): > > > >>>> riscv: Get rid of riscv_pfn_base variable > > > >>>> mm: Introduce memblock_isolate_memory > > > >>>> arm64: Make use of memblock_isolate_memory for the linear map= ping > > > >>>> riscv: Use PUD/P4D/PGD pages for the linear mapping > > > >>> Kernel boot fine on RV64 but there is a failure which is still no= t > > > >>> addressed. You can see this failure as following message in > > > >>> kernel boot log: > > > >>> 0.000000] Failed to add a System RAM resource at 80200000 > > > >> Hmmm I don't get that in any of my test configs, would you mind > > > >> sharing yours and your qemu command line? > > > > Try alexghiti_test branch at > > > > https://github.com/avpatel/linux.git > > > > > > > > I am building the kernel using defconfig and my rootfs is > > > > based on busybox. > > > > > > > > My QEMU command is: > > > > qemu-system-riscv64 -M virt -m 512M -nographic -bios > > > > opensbi/build/platform/generic/firmware/fw_dynamic.bin -kernel > > > > ./build-riscv64/arch/riscv/boot/Image -append "root=3D/dev/ram rw > > > > console=3DttyS0 earlycon" -initrd ./rootfs_riscv64.img -smp 4 > > > > > > > > > So splitting memblock.memory is the culprit, it "confuses" the resour= ces > > > addition and I can only find hacky ways to fix that... > > Hi Alexandre, > > > > We encountered the same error as Anup. After adding your patch > > (3335068f87217ea59d08f462187dc856652eea15), we will not encounter the > > error again. > > > > What I have observed so far is > > > > - before your patch > > When merging consecutive memblocks, if the memblock types are different= , > > they will be merged into reserved > > - after your patch > > When consecutive memblocks are merged, if the memblock types are > > different, they will be merged into memory. > > > > Such a result will cause the memory location of OpenSBI to be changed > > from reserved to memory. Will this have any side effects? > > I guess it will end up in the memory pool and pages from openSBI > region will be allocated, so we should see very quickly bad stuff > happening (either PMP violation or M-mode ecall never > returning/trapping/etc). > > But I don't observe the same thing, I always see the openSBI region > being reserved: > > reserved[0x0] [0x0000000080000000-0x000000008007ffff], > 0x0000000000080000 bytes flags: 0x0 > > Can you elaborate a bit more about "When consecutive memblocks are > merged, if the memblock types are different, they will be merged into > memory"? Where/when does this merge happen? Can you give me a config > file and a kernel revision so that I can take a look? Ok, If you want to reproduce the same results you just need to modify OpenS= BI [ lib/sbi/sbi_domain.c ] +#define TEST_SIZE 0x200000 - (scratch->fw_size - scratch->fw_rw_offset= ), + (TEST_SIZE - scratch->fw_rw_offset), In addition, you can insert checks in the kernel merged function [ mm/memblock.c ] static void __init_memblock memblock_merge_regions(struct memblock_type *ty= pe) while (i < type->cnt - 1) { ... /* move forward from next + 1, index of which is i + 2 */ memmove(next, next + 1, (type->cnt - (i + 2)) * sizeof(*nex= t)); type->cnt--; } + pr_info("Merged memblock_type: cnt =3D %lu, max =3D %lu, total_size =3D 0x%llx\n",type->cnt, type->max, type->total_size); + for (i =3D 0; i < type->cnt; i++) { + const char *region_type =3D memblock_is_memory(type->regions[i].base) ? "memory" : "reserve"; + pr_info("Region %d: base =3D 0x%llx, size =3D 0x%llx, type =3D %s\n", i, type->regions[i].base, type->regions[i].size, region_type); + } } This is kernel boot log - before your patch ... [ 0.000000] OF: fdt: Reserving memory: base =3D 0x80000000, size =3D 0x2= 00000 [ 0.000000] Merged memblock_type: cnt =3D 4, max =3D 128, total_size =3D= 0x1628501 [ 0.000000] Region 0: base =3D 0x80000000, size =3D 0x1600000, type =3D = reserve ... - after your patch ... [ 0.000000] OF: fdt: Reserving memory: base =3D 0x80000000, size =3D 0x2= 00000 [ 0.000000] Merged memblock_type: cnt =3D 4, max =3D 128, total_size =3D= 0x180c42e [ 0.000000] Region 0: base =3D 0x80000000, size =3D 0x1800000, type =3D = memory ... [ 0.000000] Failed to add a system RAM resource at 80200000 ... > > Thanks, > > Alex > > > > > > > So given that the arm64 patch with the new API is not pretty and that > > > the simplest solution is to re-merge the memblock regions afterwards > > > (which is done by memblock_clear_nomap), I'll drop the new API and th= e > > > arm64 patch to use the nomap API like arm64: I'll take advantage of t= hat > > > to clean setup_vm_final which I have wanted to do for a long time. > > > > > > @Mike Thanks for you reviews! > > > > > > @Anup Thanks for all your bug reports on this patchset, I have to > > > improve my test flow (it is in the work :)). > > > > > > > > > > Regards, > > > > Anup > > > > > > > >> Thanks > > > >> > > > >>> Regards, > > > >>> Anup > > > >>> > > > >>>> arch/arm64/mm/mmu.c | 25 +++++++++++------ > > > >>>> arch/riscv/include/asm/page.h | 19 +++++++++++-- > > > >>>> arch/riscv/mm/init.c | 53 +++++++++++++++++++++++++++= +------- > > > >>>> arch/riscv/mm/physaddr.c | 16 +++++++++++ > > > >>>> drivers/of/fdt.c | 11 ++++---- > > > >>>> include/linux/memblock.h | 1 + > > > >>>> mm/memblock.c | 20 +++++++++++++ > > > >>>> 7 files changed, 119 insertions(+), 26 deletions(-) > > > >>>> > > > >>>> -- > > > >>>> 2.37.2 > > > >>>> > > > > _______________________________________________ > > > > linux-riscv mailing list > > > > linux-riscv@lists.infradead.org > > > > http://lists.infradead.org/mailman/listinfo/linux-riscv > > > > > > _______________________________________________ > > > linux-riscv mailing list > > > linux-riscv@lists.infradead.org > > > http://lists.infradead.org/mailman/listinfo/linux-riscv 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 4E4D0C4725D for ; Fri, 19 Jan 2024 09:27:48 +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:Cc:To:Subject:Message-ID:Date:From: In-Reply-To:References:MIME-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=bbx0YsWpq4MwUxc/VztpzF+KdgW9lQyluT9phWuvFdo=; b=XP6LDjhJdrMwoV 73DBmlZ0KDG6erKjwZitd7jKNieRGdPO9G39pnf9LlefjLdA5y394sEnbzbV4SPeaydZWwhcjmCqY 7JJzX5qhCPHo6T6QY8qut4jBPZDNTLyJMWpPf2ka+7+xHRV/Xzb1oBOaLksOlj78oYDdlgBgNGoxd ah6Pe56WmW8WzgzPudFfvd2pX+AkdXuaqWPQrWx+5w/iH4f5ffR1vdw69LGSLl8VaA7QtpPlPAkVc V71gJyXiyES6mjMD7zxAo5TUMdIR6q7C/UrtqX//zJvRLflU0H/eJ6R64olw+D17LOqcWZjmSEG+H I7aaozTEuxGWAVTzScIg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rQl9i-004xrr-08; Fri, 19 Jan 2024 09:27:18 +0000 Received: from mail-yb1-xb2c.google.com ([2607:f8b0:4864:20::b2c]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rQl9e-004xqd-1R for linux-arm-kernel@lists.infradead.org; Fri, 19 Jan 2024 09:27:16 +0000 Received: by mail-yb1-xb2c.google.com with SMTP id 3f1490d57ef6-dc2308fe275so531276276.1 for ; Fri, 19 Jan 2024 01:27:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; t=1705656431; x=1706261231; darn=lists.infradead.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=PX3oyvjTSeaEmMA7BmGcrPiugjRL8juVncN6NIp0Uhw=; b=jZur4uVvEBF/VzgCR8sBc/3IxHaVGbx3fTMk5Q3OI+QfeuyvHZd/O5eQQ0/SJxAxCl MYM/fhStbrZ9oYB7xkUr4FaLomOEkXoVfdEz2HfIPBf5dnZYnFCwUsnaiTUFpvyHvR5d IOtydhR394SJJDKXV6Cxr0R7R2iUdUW+weoJXW2tPd0TVZiFrcB/Ey4jkb7pLuhrNqfU zGRm4MB97ddz3UeSI6ykpxs8NwINJvgf0SG1J4y7Fwb7chcsIQbmcjytE6OD7xFW6/1Y T8fajq5olyZZfx/YxIlo1GOLNQbgevZYIlXaMaFm4GjcFcRbkJd+oFmn0wF+N5z8nUdp Wx5g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705656431; x=1706261231; 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=PX3oyvjTSeaEmMA7BmGcrPiugjRL8juVncN6NIp0Uhw=; b=I4YV3BGAE24VaCp7mfUJZYbaZQMcaDf1EKRxo7/qsBtJdfyGq11rssU5k/6jEuSwPb hat5xT2spTZ8DzDgMVJSkPAwbCHHSEbNGQNSuOKz+B9ST3aO/vMUy4J0TwXJy5slVHW6 P/Hv5fv/nb8tSJD10MkdMSA+bqPADIBIfl/MLWzomeIYLOUBhf6pKd4BF7gLpToU7T8W zaNXlQUEjCcfAnL36fLFRqKsVwMAucYG7Sh1bjyupTkv77HDc0Ygw9j+zSQXpmBZ6PzJ iHJL9YqtONrP0V4cTbJbw1a2O7Umtq0cgxAMsHbHgpGQj1L+7AvmVy7i6SxPksKMEEnp 1txg== X-Gm-Message-State: AOJu0YxekauUA7lwWxIPSBAD6ZHbMc3zdDlWRl1DOQiT6V9M9LD8D5m9 oF9Ic4CMv8SEBrEWS/1BrWx9DfUE3VZjBLwuyWDyA0efZFMU4LF+djJXIjxXJzMnDEFN4EcAPlH WfO7g9WMHiJ+HV3UoT1jJE4tFfFZyhqFo2y9sVQ== X-Google-Smtp-Source: AGHT+IFnB4ZjPfFgAynVnG8PcS3bLndBbDG8SKTtMgiDYr+D8XJYREVe4SCkVUjmR+ve+2tw/4wEl6cj595gux0wucE= X-Received: by 2002:a25:1003:0:b0:dc2:65e7:b616 with SMTP id 3-20020a251003000000b00dc265e7b616mr463094ybq.74.1705656431151; Fri, 19 Jan 2024 01:27:11 -0800 (PST) MIME-Version: 1.0 References: <20230316131711.1284451-1-alexghiti@rivosinc.com> <20240118082346.GB31078@hsinchu15> In-Reply-To: From: Nylon Chen Date: Fri, 19 Jan 2024 17:26:59 +0800 Message-ID: Subject: Re: Fwd: [PATCH v8 0/4] riscv: Use PUD/P4D/PGD pages for the linear mapping To: Alexandre Ghiti Cc: alex@ghiti.fr, apatel@ventanamicro.com, catalin.marinas@arm.com, will@kernel.org, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, robh+dt@kernel.org, frowand.list@gmail.com, rppt@kernel.org, akpm@linux-foundation.org, anup@brainfault.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, devicetree@vger.kernel.org, linux-mm@kvack.org, zong.li@sifive.com, nylon7717@gmail.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240119_012714_537779_F547B71E X-CRM114-Status: GOOD ( 58.51 ) 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="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org QWxleGFuZHJlIEdoaXRpIDxhbGV4Z2hpdGlAcml2b3NpbmMuY29tPiDmlrwgMjAyNOW5tDHmnIgx OOaXpSDpgLHlm5sg5LiL5Y2IOTowMeWvq+mBk++8mgo+Cj4gSGkgTnlsb24sCkhpIEFsZXhhbmRy ZSwgdGhhbmtzIGZvciB5b3VyIGZlZWRiYWNrLAo+Cj4gT24gVGh1LCBKYW4gMTgsIDIwMjQgYXQg OToyM+KAr0FNIE55bG9uIENoZW4gPG55bG9uLmNoZW5Ac2lmaXZlLmNvbT4gd3JvdGU6Cj4gPgo+ ID4gPiBPbiAzLzIzLzIzIDE1OjU1LCBBbnVwIFBhdGVsIHdyb3RlOgo+ID4gPiA+IE9uIFRodSwg TWFyIDIzLCAyMDIzIGF0IDY6MjTigK9QTSBBbGV4YW5kcmUgR2hpdGkgPGFsZXhnaGl0aUByaXZv c2luYy5jb20+IHdyb3RlOgo+ID4gPiA+PiBIaSBBbnVwLAo+ID4gPiA+Pgo+ID4gPiA+PiBPbiBU aHUsIE1hciAyMywgMjAyMyBhdCAxOjE44oCvUE0gQW51cCBQYXRlbCA8YXBhdGVsQHZlbnRhbmFt aWNyby5jb20+IHdyb3RlOgo+ID4gPiA+Pj4gSGkgQWxleCwKPiA+ID4gPj4+Cj4gPiA+ID4+PiBP biBUaHUsIE1hciAxNiwgMjAyMyBhdCA2OjQ44oCvUE0gQWxleGFuZHJlIEdoaXRpIDxhbGV4Z2hp dGlAcml2b3NpbmMuY29tPiB3cm90ZToKPiA+ID4gPj4+PiBUaGlzIHBhdGNoc2V0IGludGVuZHMg dG8gaW1wcm92ZSB0bGIgdXRpbGl6YXRpb24gYnkgdXNpbmcgaHVnZXBhZ2VzIGZvcgo+ID4gPiA+ Pj4+IHRoZSBsaW5lYXIgbWFwcGluZy4KPiA+ID4gPj4+Pgo+ID4gPiA+Pj4+IEFzIHJlcG9ydGVk IGJ5IEFudXAgaW4gdjYsIHdoZW4gU1RSSUNUX0tFUk5FTF9SV1ggaXMgZW5hYmxlZCwgd2UgbXVz dAo+ID4gPiA+Pj4+IHRha2UgY2FyZSBvZiBpc29sYXRpbmcgdGhlIGtlcm5lbCB0ZXh0IGFuZCBy b2RhdGEgc28gdGhhdCB0aGV5IGFyZSBub3QKPiA+ID4gPj4+PiBtYXBwZWQgd2l0aCBhIFBVRCBt YXBwaW5nIHdoaWNoIHdvdWxkIHRoZW4gYXNzaWduIHdyb25nIHBlcm1pc3Npb25zIHRvCj4gPiA+ ID4+Pj4gdGhlIHdob2xlIHJlZ2lvbjogaXQgaXMgYWNoaWV2ZWQgYnkgaW50cm9kdWNpbmcgYSBu ZXcgbWVtYmxvY2sgQVBJLgo+ID4gPiA+Pj4+Cj4gPiA+ID4+Pj4gQW5vdGhlciBwYXRjaCBtYWtl cyB1c2Ugb2YgdGhpcyBuZXcgQVBJIGluIGFybTY0IHdoaWNoIHVzZWQgc29tZSBzb3J0IG9mCj4g PiA+ID4+Pj4gaGFjayB0byBzb2x2ZSB0aGlzIGlzc3VlOiBpdCB3YXMgYnVpbHQvYm9vdCB0ZXN0 ZWQgc3VjY2Vzc2Z1bGx5Lgo+ID4gPiA+Pj4+Cj4gPiA+ID4+Pj4gYmFzZS1jb21taXQtdGFnOiB2 Ni4zLXJjMQo+ID4gPiA+Pj4+Cj4gPiA+ID4+Pj4gdjg6Cj4gPiA+ID4+Pj4gLSBGaXggcnYzMiwg YXMgcmVwb3J0ZWQgYnkgQW51cAo+ID4gPiA+Pj4+IC0gRG8gbm90IG1vZGlmeSBtZW1ibG9ja19p c29sYXRlX3JhbmdlIGFuZCBmaXhlcyBjb21tZW50LCBhcyBzdWdnZXN0ZWQgYnkgTWlrZQo+ID4g PiA+Pj4+IC0gVXNlIHRoZSBuZXcgbWVtYmxvY2sgQVBJIGZvciBjcmFzaCBrZXJuZWwgdG9vIGlu IGFybTY0LCBhcyBzdWdnZXN0ZWQgYnkgQW5kcmV3Cj4gPiA+ID4+Pj4gLSBGaXggYXJtNjQgZG91 YmxlIG1hcHBpbmcgKHdoaWNoIHRvIG1lIGRpZCBub3Qgd29yayBpbiB2NyksIGJ1dCBlbmRzIHVw IG5vdAo+ID4gPiA+Pj4+ICAgIGJlaW5nIHByZXR0eSBhdCBhbGwsIHdpbGwgd2FpdCBmb3IgY29t bWVudHMgZnJvbSBhcm02NCByZXZpZXdlcnMsIGJ1dAo+ID4gPiA+Pj4+ICAgIHRoaXMgcGF0Y2gg Y2FuIGVhc2lseSBiZSBkcm9wcGVkIGlmIHRoZXkgZG8gbm90IHdhbnQgaXQuCj4gPiA+ID4+Pj4K PiA+ID4gPj4+PiB2NzoKPiA+ID4gPj4+PiAtIEZpeCBBbnVwIGJ1ZyByZXBvcnQgYnkgaW50cm9k dWNpbmcgbWVtYmxvY2tfaXNvbGF0ZV9tZW1vcnkgd2hpY2gKPiA+ID4gPj4+PiAgICBhbGxvd3Mg dXMgdG8gc3BsaXQgdGhlIG1lbWJsb2NrIG1hcHBpbmdzIGFuZCB0aGVuIGF2b2lkIHRvIG1hcCB0 aGUKPiA+ID4gPj4+PiAgICB0aGUgUFVEIHdoaWNoIGNvbnRhaW5zIHRoZSBrZXJuZWwgYXMgcmVh ZCBvbmx5Cj4gPiA+ID4+Pj4gLSBBZGQgYSBwYXRjaCB0byBhcm02NCB0byB1c2UgdGhpcyBuZXds eSBpbnRyb2R1Y2VkIEFQSQo+ID4gPiA+Pj4+Cj4gPiA+ID4+Pj4gdjY6Cj4gPiA+ID4+Pj4gLSBx dWlldCBMTFZNIHdhcm5pbmcgYnkgY2FzdGluZyBwaHlzX3JhbV9iYXNlIGludG8gYW4gdW5zaWdu ZWQgbG9uZwo+ID4gPiA+Pj4+Cj4gPiA+ID4+Pj4gdjU6Cj4gPiA+ID4+Pj4gLSBGaXggbm9tbXUg YnVpbGRzIGJ5IGdldHRpbmcgcmlkIG9mIHJpc2N2X3Bmbl9iYXNlIGluIHBhdGNoIDEsIHRoYW5r cwo+ID4gPiA+Pj4+ICAgIENvbm9yCj4gPiA+ID4+Pj4gLSBBZGQgUkIgZnJvbSBBbmRyZXcKPiA+ ID4gPj4+Pgo+ID4gPiA+Pj4+IHY0Ogo+ID4gPiA+Pj4+IC0gUmViYXNlIG9uIHRvcCBvZiB2Ni4y LXJjMywgYXMgbm90ZWQgYnkgQ29ub3IKPiA+ID4gPj4+PiAtIEFkZCBBY2tlZC1ieSBSb2IKPiA+ ID4gPj4+Pgo+ID4gPiA+Pj4+IHYzOgo+ID4gPiA+Pj4+IC0gQ2hhbmdlIHRoZSBjb21tZW50IGFi b3V0IGluaXRyZF9zdGFydCBWQSBjb252ZXJzaW9uIHNvIHRoYXQgaXQgZml0cwo+ID4gPiA+Pj4+ ICAgIEFSTTY0IGFuZCBSSVNDVjY0IChhbmQgb3RoZXJzIGluIHRoZSBmdXR1cmUgaWYgbmVlZGVk KSwgYXMgc3VnZ2VzdGVkCj4gPiA+ID4+Pj4gICAgYnkgUm9iCj4gPiA+ID4+Pj4KPiA+ID4gPj4+ PiB2MjoKPiA+ID4gPj4+PiAtIEFkZCBhIGNvbW1lbnQgb24gd2h5IFJJU0NWNjQgZG9lcyBub3Qg bmVlZCB0byBzZXQgaW5pdHJkX3N0YXJ0L2VuZCB0aGF0Cj4gPiA+ID4+Pj4gICAgZWFybHkgaW4g dGhlIGJvb3QgcHJvY2VzcywgYXMgYXNrZWQgYnkgUm9iCj4gPiA+ID4+Pj4KPiA+ID4gPj4+PiBB bGV4YW5kcmUgR2hpdGkgKDQpOgo+ID4gPiA+Pj4+ICAgIHJpc2N2OiBHZXQgcmlkIG9mIHJpc2N2 X3Bmbl9iYXNlIHZhcmlhYmxlCj4gPiA+ID4+Pj4gICAgbW06IEludHJvZHVjZSBtZW1ibG9ja19p c29sYXRlX21lbW9yeQo+ID4gPiA+Pj4+ICAgIGFybTY0OiBNYWtlIHVzZSBvZiBtZW1ibG9ja19p c29sYXRlX21lbW9yeSBmb3IgdGhlIGxpbmVhciBtYXBwaW5nCj4gPiA+ID4+Pj4gICAgcmlzY3Y6 IFVzZSBQVUQvUDREL1BHRCBwYWdlcyBmb3IgdGhlIGxpbmVhciBtYXBwaW5nCj4gPiA+ID4+PiBL ZXJuZWwgYm9vdCBmaW5lIG9uIFJWNjQgYnV0IHRoZXJlIGlzIGEgZmFpbHVyZSB3aGljaCBpcyBz dGlsbCBub3QKPiA+ID4gPj4+IGFkZHJlc3NlZC4gWW91IGNhbiBzZWUgdGhpcyBmYWlsdXJlIGFz IGZvbGxvd2luZyBtZXNzYWdlIGluCj4gPiA+ID4+PiBrZXJuZWwgYm9vdCBsb2c6Cj4gPiA+ID4+ PiAgICAgIDAuMDAwMDAwXSBGYWlsZWQgdG8gYWRkIGEgU3lzdGVtIFJBTSByZXNvdXJjZSBhdCA4 MDIwMDAwMAo+ID4gPiA+PiBIbW1tIEkgZG9uJ3QgZ2V0IHRoYXQgaW4gYW55IG9mIG15IHRlc3Qg Y29uZmlncywgd291bGQgeW91IG1pbmQKPiA+ID4gPj4gc2hhcmluZyB5b3VycyBhbmQgeW91ciBx ZW11IGNvbW1hbmQgbGluZT8KPiA+ID4gPiBUcnkgYWxleGdoaXRpX3Rlc3QgYnJhbmNoIGF0Cj4g PiA+ID4gaHR0cHM6Ly9naXRodWIuY29tL2F2cGF0ZWwvbGludXguZ2l0Cj4gPiA+ID4KPiA+ID4g PiBJIGFtIGJ1aWxkaW5nIHRoZSBrZXJuZWwgdXNpbmcgZGVmY29uZmlnIGFuZCBteSByb290ZnMg aXMKPiA+ID4gPiBiYXNlZCBvbiBidXN5Ym94Lgo+ID4gPiA+Cj4gPiA+ID4gTXkgUUVNVSBjb21t YW5kIGlzOgo+ID4gPiA+IHFlbXUtc3lzdGVtLXJpc2N2NjQgLU0gdmlydCAtbSA1MTJNIC1ub2dy YXBoaWMgLWJpb3MKPiA+ID4gPiBvcGVuc2JpL2J1aWxkL3BsYXRmb3JtL2dlbmVyaWMvZmlybXdh cmUvZndfZHluYW1pYy5iaW4gLWtlcm5lbAo+ID4gPiA+IC4vYnVpbGQtcmlzY3Y2NC9hcmNoL3Jp c2N2L2Jvb3QvSW1hZ2UgLWFwcGVuZCAicm9vdD0vZGV2L3JhbSBydwo+ID4gPiA+IGNvbnNvbGU9 dHR5UzAgZWFybHljb24iIC1pbml0cmQgLi9yb290ZnNfcmlzY3Y2NC5pbWcgLXNtcCA0Cj4gPiA+ Cj4gPiA+Cj4gPiA+IFNvIHNwbGl0dGluZyBtZW1ibG9jay5tZW1vcnkgaXMgdGhlIGN1bHByaXQs IGl0ICJjb25mdXNlcyIgdGhlIHJlc291cmNlcwo+ID4gPiBhZGRpdGlvbiBhbmQgSSBjYW4gb25s eSBmaW5kIGhhY2t5IHdheXMgdG8gZml4IHRoYXQuLi4KPiA+IEhpIEFsZXhhbmRyZSwKPiA+Cj4g PiBXZSBlbmNvdW50ZXJlZCB0aGUgc2FtZSBlcnJvciBhcyBBbnVwLiBBZnRlciBhZGRpbmcgeW91 ciBwYXRjaAo+ID4gKDMzMzUwNjhmODcyMTdlYTU5ZDA4ZjQ2MjE4N2RjODU2NjUyZWVhMTUpLCB3 ZSB3aWxsIG5vdCBlbmNvdW50ZXIgdGhlCj4gPiBlcnJvciBhZ2Fpbi4KPiA+Cj4gPiBXaGF0IEkg aGF2ZSBvYnNlcnZlZCBzbyBmYXIgaXMKPiA+Cj4gPiAtIGJlZm9yZSB5b3VyIHBhdGNoCj4gPiBX aGVuIG1lcmdpbmcgY29uc2VjdXRpdmUgbWVtYmxvY2tzLCBpZiB0aGUgbWVtYmxvY2sgdHlwZXMg YXJlIGRpZmZlcmVudCwKPiA+IHRoZXkgd2lsbCBiZSBtZXJnZWQgaW50byByZXNlcnZlZAo+ID4g LSBhZnRlciB5b3VyIHBhdGNoCj4gPiBXaGVuIGNvbnNlY3V0aXZlIG1lbWJsb2NrcyBhcmUgbWVy Z2VkLCBpZiB0aGUgbWVtYmxvY2sgdHlwZXMgYXJlCj4gPiBkaWZmZXJlbnQsIHRoZXkgd2lsbCBi ZSBtZXJnZWQgaW50byBtZW1vcnkuCj4gPgo+ID4gU3VjaCBhIHJlc3VsdCB3aWxsIGNhdXNlIHRo ZSBtZW1vcnkgbG9jYXRpb24gb2YgT3BlblNCSSB0byBiZSBjaGFuZ2VkCj4gPiBmcm9tIHJlc2Vy dmVkIHRvIG1lbW9yeS4gV2lsbCB0aGlzIGhhdmUgYW55IHNpZGUgZWZmZWN0cz8KPgo+IEkgZ3Vl c3MgaXQgd2lsbCBlbmQgdXAgaW4gdGhlIG1lbW9yeSBwb29sIGFuZCBwYWdlcyBmcm9tIG9wZW5T QkkKPiByZWdpb24gd2lsbCBiZSBhbGxvY2F0ZWQsIHNvIHdlIHNob3VsZCBzZWUgdmVyeSBxdWlj a2x5IGJhZCBzdHVmZgo+IGhhcHBlbmluZyAoZWl0aGVyIFBNUCB2aW9sYXRpb24gb3IgTS1tb2Rl IGVjYWxsIG5ldmVyCj4gcmV0dXJuaW5nL3RyYXBwaW5nL2V0YykuCj4KPiBCdXQgSSBkb24ndCBv YnNlcnZlIHRoZSBzYW1lIHRoaW5nLCBJIGFsd2F5cyBzZWUgdGhlIG9wZW5TQkkgcmVnaW9uCj4g YmVpbmcgcmVzZXJ2ZWQ6Cj4KPiByZXNlcnZlZFsweDBdIFsweDAwMDAwMDAwODAwMDAwMDAtMHgw MDAwMDAwMDgwMDdmZmZmXSwKPiAweDAwMDAwMDAwMDAwODAwMDAgYnl0ZXMgZmxhZ3M6IDB4MAo+ Cj4gQ2FuIHlvdSBlbGFib3JhdGUgYSBiaXQgbW9yZSBhYm91dCAiV2hlbiBjb25zZWN1dGl2ZSBt ZW1ibG9ja3MgYXJlCj4gbWVyZ2VkLCBpZiB0aGUgbWVtYmxvY2sgdHlwZXMgYXJlIGRpZmZlcmVu dCwgdGhleSB3aWxsIGJlIG1lcmdlZCBpbnRvCj4gbWVtb3J5Ij8gV2hlcmUvd2hlbiBkb2VzIHRo aXMgbWVyZ2UgaGFwcGVuPyBDYW4geW91IGdpdmUgbWUgYSBjb25maWcKPiBmaWxlIGFuZCBhIGtl cm5lbCByZXZpc2lvbiBzbyB0aGF0IEkgY2FuIHRha2UgYSBsb29rPwpPaywgSWYgeW91IHdhbnQg dG8gcmVwcm9kdWNlIHRoZSBzYW1lIHJlc3VsdHMgeW91IGp1c3QgbmVlZCB0byBtb2RpZnkgT3Bl blNCSQoKWyBsaWIvc2JpL3NiaV9kb21haW4uYyBdCisjZGVmaW5lIFRFU1RfU0laRSAweDIwMDAw MAoKLSAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIChzY3JhdGNoLT5md19zaXplIC0g c2NyYXRjaC0+Zndfcndfb2Zmc2V0KSwKKyAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg IChURVNUX1NJWkUgLSBzY3JhdGNoLT5md19yd19vZmZzZXQpLAoKSW4gYWRkaXRpb24sIHlvdSBj YW4gaW5zZXJ0IGNoZWNrcyBpbiB0aGUga2VybmVsIG1lcmdlZCBmdW5jdGlvbgpbIG1tL21lbWJs b2NrLmMgXQpzdGF0aWMgdm9pZCBfX2luaXRfbWVtYmxvY2sgbWVtYmxvY2tfbWVyZ2VfcmVnaW9u cyhzdHJ1Y3QgbWVtYmxvY2tfdHlwZSAqdHlwZSkKICAgICAgICB3aGlsZSAoaSA8IHR5cGUtPmNu dCAtIDEpIHsKICAgICAgICAgLi4uCiAgICAgICAgICAgICAgICAvKiBtb3ZlIGZvcndhcmQgZnJv bSBuZXh0ICsgMSwgaW5kZXggb2Ygd2hpY2ggaXMgaSArIDIgKi8KICAgICAgICAgICAgICAgIG1l bW1vdmUobmV4dCwgbmV4dCArIDEsICh0eXBlLT5jbnQgLSAoaSArIDIpKSAqIHNpemVvZigqbmV4 dCkpOwogICAgICAgICAgICAgICAgdHlwZS0+Y250LS07CiAgICAgICAgfQorICAgICAgIHByX2lu Zm8oIk1lcmdlZCBtZW1ibG9ja190eXBlOiBjbnQgPSAlbHUsIG1heCA9ICVsdSwKdG90YWxfc2l6 ZSA9IDB4JWxseFxuIix0eXBlLT5jbnQsIHR5cGUtPm1heCwgdHlwZS0+dG90YWxfc2l6ZSk7Cisg ICAgICAgZm9yIChpID0gMDsgaSA8IHR5cGUtPmNudDsgaSsrKSB7CisgICAgICAgICAgICAgICBj b25zdCBjaGFyICpyZWdpb25fdHlwZSA9Cm1lbWJsb2NrX2lzX21lbW9yeSh0eXBlLT5yZWdpb25z W2ldLmJhc2UpID8gIm1lbW9yeSIgOiAicmVzZXJ2ZSI7CisgICAgICAgICAgICAgICBwcl9pbmZv KCJSZWdpb24gJWQ6IGJhc2UgPSAweCVsbHgsIHNpemUgPSAweCVsbHgsIHR5cGUKPSAlc1xuIiwg aSwgdHlwZS0+cmVnaW9uc1tpXS5iYXNlLCB0eXBlLT5yZWdpb25zW2ldLnNpemUsCnJlZ2lvbl90 eXBlKTsKKyAgICAgICB9CiB9ClRoaXMgaXMga2VybmVsIGJvb3QgbG9nCi0gYmVmb3JlIHlvdXIg cGF0Y2gKLi4uClsgICAgMC4wMDAwMDBdIE9GOiBmZHQ6IFJlc2VydmluZyBtZW1vcnk6IGJhc2Ug PSAweDgwMDAwMDAwLCBzaXplID0gMHgyMDAwMDAKWyAgICAwLjAwMDAwMF0gTWVyZ2VkIG1lbWJs b2NrX3R5cGU6IGNudCA9IDQsIG1heCA9IDEyOCwgdG90YWxfc2l6ZSA9IDB4MTYyODUwMQpbICAg IDAuMDAwMDAwXSBSZWdpb24gMDogYmFzZSA9IDB4ODAwMDAwMDAsIHNpemUgPSAweDE2MDAwMDAs IHR5cGUgPSByZXNlcnZlCi4uLgoKLSBhZnRlciB5b3VyIHBhdGNoCi4uLgpbICAgIDAuMDAwMDAw XSBPRjogZmR0OiBSZXNlcnZpbmcgbWVtb3J5OiBiYXNlID0gMHg4MDAwMDAwMCwgc2l6ZSA9IDB4 MjAwMDAwClsgICAgMC4wMDAwMDBdIE1lcmdlZCBtZW1ibG9ja190eXBlOiBjbnQgPSA0LCBtYXgg PSAxMjgsIHRvdGFsX3NpemUgPSAweDE4MGM0MmUKWyAgICAwLjAwMDAwMF0gUmVnaW9uIDA6IGJh c2UgPSAweDgwMDAwMDAwLCBzaXplID0gMHgxODAwMDAwLCB0eXBlID0gbWVtb3J5Ci4uLgpbICAg IDAuMDAwMDAwXSBGYWlsZWQgdG8gYWRkIGEgc3lzdGVtIFJBTSByZXNvdXJjZSBhdCA4MDIwMDAw MAouLi4KPgo+IFRoYW5rcywKPgo+IEFsZXgKPgo+ID4gPgo+ID4gPiBTbyBnaXZlbiB0aGF0IHRo ZSBhcm02NCBwYXRjaCB3aXRoIHRoZSBuZXcgQVBJIGlzIG5vdCBwcmV0dHkgYW5kIHRoYXQKPiA+ ID4gdGhlIHNpbXBsZXN0IHNvbHV0aW9uIGlzIHRvIHJlLW1lcmdlIHRoZSBtZW1ibG9jayByZWdp b25zIGFmdGVyd2FyZHMKPiA+ID4gKHdoaWNoIGlzIGRvbmUgYnkgbWVtYmxvY2tfY2xlYXJfbm9t YXApLCBJJ2xsIGRyb3AgdGhlIG5ldyBBUEkgYW5kIHRoZQo+ID4gPiBhcm02NCBwYXRjaCB0byB1 c2UgdGhlIG5vbWFwIEFQSSBsaWtlIGFybTY0OiBJJ2xsIHRha2UgYWR2YW50YWdlIG9mIHRoYXQK PiA+ID4gdG8gY2xlYW4gc2V0dXBfdm1fZmluYWwgd2hpY2ggSSBoYXZlIHdhbnRlZCB0byBkbyBm b3IgYSBsb25nIHRpbWUuCj4gPiA+Cj4gPiA+IEBNaWtlIFRoYW5rcyBmb3IgeW91IHJldmlld3Mh Cj4gPiA+Cj4gPiA+IEBBbnVwIFRoYW5rcyBmb3IgYWxsIHlvdXIgYnVnIHJlcG9ydHMgb24gdGhp cyBwYXRjaHNldCwgSSBoYXZlIHRvCj4gPiA+IGltcHJvdmUgbXkgdGVzdCBmbG93IChpdCBpcyBp biB0aGUgd29yayA6KSkuCj4gPiA+Cj4gPiA+Cj4gPiA+ID4gUmVnYXJkcywKPiA+ID4gPiBBbnVw Cj4gPiA+ID4KPiA+ID4gPj4gVGhhbmtzCj4gPiA+ID4+Cj4gPiA+ID4+PiBSZWdhcmRzLAo+ID4g PiA+Pj4gQW51cAo+ID4gPiA+Pj4KPiA+ID4gPj4+PiAgIGFyY2gvYXJtNjQvbW0vbW11LmMgICAg ICAgICAgIHwgMjUgKysrKysrKysrKystLS0tLS0KPiA+ID4gPj4+PiAgIGFyY2gvcmlzY3YvaW5j bHVkZS9hc20vcGFnZS5oIHwgMTkgKysrKysrKysrKystLQo+ID4gPiA+Pj4+ICAgYXJjaC9yaXNj di9tbS9pbml0LmMgICAgICAgICAgfCA1MyArKysrKysrKysrKysrKysrKysrKysrKysrKysrLS0t LS0tLQo+ID4gPiA+Pj4+ICAgYXJjaC9yaXNjdi9tbS9waHlzYWRkci5jICAgICAgfCAxNiArKysr KysrKysrKwo+ID4gPiA+Pj4+ICAgZHJpdmVycy9vZi9mZHQuYyAgICAgICAgICAgICAgfCAxMSAr KysrLS0tLQo+ID4gPiA+Pj4+ICAgaW5jbHVkZS9saW51eC9tZW1ibG9jay5oICAgICAgfCAgMSAr Cj4gPiA+ID4+Pj4gICBtbS9tZW1ibG9jay5jICAgICAgICAgICAgICAgICB8IDIwICsrKysrKysr KysrKysKPiA+ID4gPj4+PiAgIDcgZmlsZXMgY2hhbmdlZCwgMTE5IGluc2VydGlvbnMoKyksIDI2 IGRlbGV0aW9ucygtKQo+ID4gPiA+Pj4+Cj4gPiA+ID4+Pj4gLS0KPiA+ID4gPj4+PiAyLjM3LjIK PiA+ID4gPj4+Pgo+ID4gPiA+IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fCj4gPiA+ID4gbGludXgtcmlzY3YgbWFpbGluZyBsaXN0Cj4gPiA+ID4gbGludXgt cmlzY3ZAbGlzdHMuaW5mcmFkZWFkLm9yZwo+ID4gPiA+IGh0dHA6Ly9saXN0cy5pbmZyYWRlYWQu b3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtcmlzY3YKPiA+ID4KPiA+ID4gX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KPiA+ID4gbGludXgtcmlzY3YgbWFp bGluZyBsaXN0Cj4gPiA+IGxpbnV4LXJpc2N2QGxpc3RzLmluZnJhZGVhZC5vcmcKPiA+ID4gaHR0 cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1yaXNjdgoKX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgtYXJtLWtl cm5lbCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0 dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5l bAo=