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GET /api/patches/1447402/?format=api
{ "id": 1447402, "url": "http://patchwork.ozlabs.org/api/patches/1447402/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20210304144651.310037-19-alistair.francis@wdc.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20210304144651.310037-19-alistair.francis@wdc.com>", "list_archive_url": null, "date": "2021-03-04T14:46:50", "name": "[PULL,v2,18/19] hw/riscv: virt: Limit RAM size in a 32-bit system", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "8b8d26f53f6c8279653832e8ee1d3f0b89795a29", "submitter": { "id": 74007, "url": "http://patchwork.ozlabs.org/api/people/74007/?format=api", "name": "Alistair Francis", "email": "alistair.francis@wdc.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20210304144651.310037-19-alistair.francis@wdc.com/mbox/", "series": [ { "id": 232161, "url": "http://patchwork.ozlabs.org/api/series/232161/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=232161", "date": "2021-03-04T14:46:33", "name": "[PULL,v2,01/19] target/riscv: Declare csr_ops[] with a known size", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/232161/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/1447402/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/1447402/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@bilbo.ozlabs.org", "Authentication-Results": [ "ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=<UNKNOWN>)", "ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=wdc.com header.i=@wdc.com header.a=rsa-sha256\n header.s=dkim.wdc.com header.b=gGKfrbST;\n\tdkim-atps=neutral" ], "Received": [ "from lists.gnu.org (lists.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 4DrvLb6cM2z9sSC\n\tfor <incoming@patchwork.ozlabs.org>; Fri, 5 Mar 2021 02:05:27 +1100 (AEDT)", "from localhost ([::1]:39902 helo=lists1p.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>)\n\tid 1lHpXZ-0001KT-Cw\n\tfor incoming@patchwork.ozlabs.org; Thu, 04 Mar 2021 10:05:25 -0500", "from eggs.gnu.org ([2001:470:142:3::10]:60526)\n by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1)\n (envelope-from <prvs=690dc056c=alistair.francis@wdc.com>)\n id 1lHpHg-0002Sy-98\n for qemu-devel@nongnu.org; Thu, 04 Mar 2021 09:49:00 -0500", "from esa1.hgst.iphmx.com ([68.232.141.245]:44463)\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1)\n (envelope-from <prvs=690dc056c=alistair.francis@wdc.com>)\n id 1lHpHe-0007up-Ht\n for qemu-devel@nongnu.org; Thu, 04 Mar 2021 09:48:59 -0500", "from uls-op-cesaip02.wdc.com (HELO uls-op-cesaep02.wdc.com)\n ([199.255.45.15])\n by ob1.hgst.iphmx.com with ESMTP; 04 Mar 2021 22:48:27 +0800", "from uls-op-cesaip01.wdc.com ([10.248.3.36])\n by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;\n 04 Mar 2021 06:29:41 -0800", "from cnf008142.ad.shared (HELO alistair-risc6-laptop.hgst.com)\n ([10.86.48.109])\n by uls-op-cesaip01.wdc.com with ESMTP; 04 Mar 2021 06:48:27 -0800" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=simple/simple;\n d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com;\n t=1614869338; x=1646405338;\n h=from:to:cc:subject:date:message-id:in-reply-to:\n references:mime-version:content-transfer-encoding;\n bh=IP2HN1eQBL39bp3vkwJRHZffXjaUEFOkfWY03vX1wLE=;\n b=gGKfrbSTljaH3lzulgsp+pZSshKw+DDCfm4GkuODDJlOXX9/RRsSucvi\n rbwpa80hqshuP/rMyt4sHnOh0AKOO4JRv1SD8CLxU7z+ey/qLvmphIiti\n OBjfiAWINouHPlU1pkSEKnxYk8j2rJaNrPQ42dbSJR0IpoY6ITg0IVI3E\n XugOT0PngngJhQxkVU890gNp8Be0B6DlbgQcuZsNnpNOSsELtETMKHi0o\n vVfvnM7Pmp0mRFD27pCrST6hOYaZ+xdhNuqaHqLz/nMOngwXGqOW0DqwS\n YDEqaozFwWuEwOZ3RUvaoSTyz+GSWa+0FTZdXiZRanEHBX1Nbvi5dOVgM w==;", "IronPort-SDR": [ "\n xNrB2GaY9TshXkWbC/uwKtPc0XqJlb1QjYg8S1dJT8XQ7thaXqhYfKce3OiD2dwGN+hyhALbZg\n 02vMUmZfjP790S9OdaJqbauFWf2msSW2J5Fythb/rgYJC1bAq8qaYNbH3SRibtZUFVrHU3rvCm\n 25hDBcDJasg56d73NlnJlonjPgXhqo+DumuEwJftRl7AcXufLZC2U60mXvjw8r1g8xj1ibjDLp\n qfN7I5+gGBiJDu7kxHix3qD2liv0E9c/fFOZTDAIqga4yLMYJwxAV/YiAWWuG+XggJrZN/Edm8\n TQE=", "\n jTRuk3WEc935SAYBIHabaFYcQSbEHP2DDlrBPfNcexylOTmlnPfaZjrgjIwMvhRIwtBnQPDhV1\n 0r/rUXOYPd6+ZYxpvQNbdkdEG6Zk5KrY4qA5fsvtfVGAGz0PIZCYfa9seHd6zAL8Pd3QRILuj6\n kESgVGxxmDo0PcZV/g9KHbhjjFilymJrri8roTdT5Kxv9YcQJcH7O2y5dz+6qNg/9U3FGdbfHU\n 22NsNORI7WVA18AG5/y4X+TUXEeaeqVfTDSCWhLr2sFWvW87SWmuuZmjsWUNhhwZE+SS+XX/ra\n yqZqiR1eqbAZfYG/OWpedUeW", "\n 71LL6ckqlHL5EpqfUTzEj/Akua2z/Baj4MKkvlMePbJhjoDd7FN93/G4j/O6VAAHRgoda0/sy7\n OiX6Sfo+o3489vkSc+vTAYRrBqqiRCU/bx4jHKw5WO8yDQEe8LlvqIVbAX5KG0ndQAJvRjFo+U\n jDDgvZE26V2Y5+SIIKlBvTXrKQADP6eNh3Uyk+yIkxto5AxUYP5YcMwuFfzgQ55tIcJYAzsdw8\n PmM4iOxjHk886gn83ssAvglifUnSwvU/dkGHkESx+Kl5Cw7wTLtMGynLu/PgagG7KR74gWXxcT\n 6LQ=" ], "X-IronPort-AV": "E=Sophos;i=\"5.81,222,1610380800\"; d=\"scan'208\";a=\"271984434\"", "WDCIronportException": "Internal", "From": "Alistair Francis <alistair.francis@wdc.com>", "To": "peter.maydell@linaro.org", "Subject": "[PULL v2 18/19] hw/riscv: virt: Limit RAM size in a 32-bit system", "Date": "Thu, 4 Mar 2021 09:46:50 -0500", "Message-Id": "<20210304144651.310037-19-alistair.francis@wdc.com>", "X-Mailer": "git-send-email 2.30.1", "In-Reply-To": "<20210304144651.310037-1-alistair.francis@wdc.com>", "References": "<20210304144651.310037-1-alistair.francis@wdc.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=68.232.141.245;\n envelope-from=prvs=690dc056c=alistair.francis@wdc.com;\n helo=esa1.hgst.iphmx.com", "X-Spam_score_int": "-27", "X-Spam_score": "-2.8", "X-Spam_bar": "--", "X-Spam_report": "(-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_PASS=-0.001,\n SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.23", "Precedence": "list", "List-Id": "<qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Cc": "alistair23@gmail.com, Bin Meng <bin.meng@windriver.com>,\n Alistair Francis <alistair.francis@wdc.com>, qemu-devel@nongnu.org", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "\"Qemu-devel\"\n <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>" }, "content": "From: Bin Meng <bin.meng@windriver.com>\n\nRV32 supports 34-bit physical address hence the maximum RAM size\nshould be limited. Limit the RAM size to 10 GiB, which leaves\nsome room for PCIe high mmio space.\n\nFor 32-bit host, this is not needed as machine->ram_size cannot\nrepresent a RAM size that big. Use a #if size test to only do\nthe size limitation for the 64-bit host.\n\nSigned-off-by: Bin Meng <bin.meng@windriver.com>\nReviewed-by: Alistair Francis <alistair.francis@wdc.com>\nMessage-id: 20210220144807.819-4-bmeng.cn@gmail.com\nSigned-off-by: Alistair Francis <alistair.francis@wdc.com>\n---\n hw/riscv/virt.c | 10 ++++++++++\n 1 file changed, 10 insertions(+)", "diff": "diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c\nindex 1d05bb3ef9..c4b8f455f8 100644\n--- a/hw/riscv/virt.c\n+++ b/hw/riscv/virt.c\n@@ -590,6 +590,16 @@ static void virt_machine_init(MachineState *machine)\n }\n }\n \n+ if (riscv_is_32bit(&s->soc[0])) {\n+#if HOST_LONG_BITS == 64\n+ /* limit RAM size in a 32-bit system */\n+ if (machine->ram_size > 10 * GiB) {\n+ machine->ram_size = 10 * GiB;\n+ error_report(\"Limiting RAM size to 10 GiB\");\n+ }\n+#endif\n+ }\n+\n /* register system main memory (actual RAM) */\n memory_region_init_ram(main_mem, NULL, \"riscv_virt_board.ram\",\n machine->ram_size, &error_fatal);\n", "prefixes": [ "PULL", "v2", "18/19" ] }