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GET /api/patches/1707751/?format=api
{ "id": 1707751, "url": "http://patchwork.ozlabs.org/api/patches/1707751/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-um/patch/20221122100759.208290-23-benjamin@sipsolutions.net/", "project": { "id": 60, "url": "http://patchwork.ozlabs.org/api/projects/60/?format=api", "name": "User-mode Linux Development", "link_name": "linux-um", "list_id": "linux-um.lists.infradead.org", "list_email": "linux-um@lists.infradead.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20221122100759.208290-23-benjamin@sipsolutions.net>", "list_archive_url": null, "date": "2022-11-22T10:07:53", "name": "[v2,22/28] um: Add UML_SECCOMP configuration option", "commit_ref": null, "pull_url": null, "state": "not-applicable", "archived": false, "hash": "6ae58d091d2e78fc5d6a65686bdfbe1c19a046ad", "submitter": { "id": 67525, "url": "http://patchwork.ozlabs.org/api/people/67525/?format=api", "name": "Benjamin Berg", "email": "benjamin@sipsolutions.net" }, "delegate": { "id": 54851, "url": "http://patchwork.ozlabs.org/api/users/54851/?format=api", "username": "rw", "first_name": "Richard", "last_name": "Weinberger", "email": "richard@nod.at" }, "mbox": "http://patchwork.ozlabs.org/project/linux-um/patch/20221122100759.208290-23-benjamin@sipsolutions.net/mbox/", "series": [ { "id": 329466, "url": "http://patchwork.ozlabs.org/api/series/329466/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-um/list/?series=329466", "date": "2022-11-22T10:07:37", "name": "Implement SECCOMP based userland", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/329466/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/1707751/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/1707751/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n spf=none (no SPF record) smtp.mailfrom=lists.infradead.org\n (client-ip=2607:7c80:54:3::133; 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Tue, 22 Nov 2022 10:11:28 +0000", "from s3.sipsolutions.net ([2a01:4f8:191:4433::2]\n helo=sipsolutions.net)\n\tby bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux))\n\tid 1oxQF3-007feV-4C\n\tfor linux-um@lists.infradead.org; Tue, 22 Nov 2022 10:11:10 +0000", "by sipsolutions.net with esmtpsa\n (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256)\n\t(Exim 4.96)\n\t(envelope-from <benjamin@sipsolutions.net>)\n\tid 1oxQEt-006IGn-0q;\n\tTue, 22 Nov 2022 11:10:51 +0100" ], "DKIM-Signature": [ "v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=lists.infradead.org; s=bombadil.20210309; h=Sender:\n\tContent-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post:\n\tList-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:\n\tMessage-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:\n\tResent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:\n\tList-Owner; bh=JdtsObb2VFiVINa11jTvFF/VfCut7YbPf+MmlLgLiAc=; b=k7n1iQWHIGeoLl\n\tkP3mtPSU+wgvibKrB6s5fkHGyo6owUcE9DI0roxzyqnUnzuRulrmlEfT//z/q1plypNJP6ala8OZt\n\tZZEPtduDqw5AQyoPH0tkOnLX995o2m1LdA3sBjIbfujBEiO0VEcd13Dp13uFPFiS5mlQLovXuaDbX\n\tFJB84JEig+vFyky7iWN+V/vX9s9OEg3tXn6WG0xYFS70+S1pa9v1TwYbGP71yTMSsEf2ZFSXU/mUS\n\tcaWA5uvRX2NZYE+7J/F2idM1TnSQ5lmEAqJyD6WGC5LARy958XCqN4YrhPkIb3Fu11/Nnp8qWyUZn\n\t037JHdK9PWyDl8qGHVFA==;", "v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version:\n\tReferences:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender\n\t:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To:\n\tResent-Cc:Resent-Message-ID; bh=5L1D6OT+aIBztZuiRFU8yv3CLkxmEuW5lEpp3nLtTtg=;\n\tt=1669111857; x=1670321457; b=NeKzY+PE0MbjydYKukdK1s2YwtDJJOp86dd0ri9dckkTnum\n\tM+ZUCoUWkGTSvZ88kL/TsN7EdU1FP3V4naPoeDpiyz35mIH4hTFsiI2qeABFxOrThDqHxDyPhS8fw\n\trarESW97S4ZCDhp2bDJvTJHt7eepgNvViT3XUdT+drXAV36o2WTiWxvdEA5Cp5ZISI1wRdXyapL17\n\tCw133aInAbmS5mHrAMXJnLNBnRcCh6IZyao6ObqjcoDIAjCgcou0OEK8XupL6F/CfYD5ZjvEBWpnG\n\tp1HvngnZkG5hgg1P+BAxa5WG4szd3/72rIxcofYZl7Ny2K9RtKRWT0pvNLCWyezg==;" ], "From": "benjamin@sipsolutions.net", "To": "linux-um@lists.infradead.org", "Cc": "Benjamin Berg <benjamin@sipsolutions.net>", "Subject": "[PATCH v2 22/28] um: Add UML_SECCOMP configuration option", "Date": "Tue, 22 Nov 2022 11:07:53 +0100", "Message-Id": "<20221122100759.208290-23-benjamin@sipsolutions.net>", "X-Mailer": "git-send-email 2.38.1", "In-Reply-To": "<20221122100759.208290-1-benjamin@sipsolutions.net>", "References": "<20221122100759.208290-1-benjamin@sipsolutions.net>", "MIME-Version": "1.0", "X-CRM114-Version": "20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ", "X-CRM114-CacheID": "sfid-20221122_021101_273246_025D38DD ", "X-CRM114-Status": "UNSURE ( 9.17 )", "X-CRM114-Notice": "Please train this message.", "X-Spam-Score": "-0.2 (/)", "X-Spam-Report": "Spam detection software,\n running on the system \"bombadil.infradead.org\",\n has NOT identified this incoming email as spam. The original\n message has been attached to this so you can view it or label\n similar future email. If you have any questions, see\n the administrator of that system for details.\n Content preview: From: Benjamin Berg <benjamin@sipsolutions.net> Add the\n UML_SECCOMP\n configuration options. The next commits will add the support itself in\n smaller\n chunks. Only x86_64 will be supported for now.\n Content analysis details: (-0.2 points, 5.0 required)\n pts rule name description\n ---- ----------------------\n --------------------------------------------------\n -0.0 SPF_PASS SPF: sender matches SPF record\n -0.0 SPF_HELO_PASS SPF: HELO matches SPF record\n -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from\n author's domain\n -0.1 DKIM_VALID Message has at least one valid DKIM or DK\n signature\n 0.1 DKIM_SIGNED Message has a DKIM or DK signature,\n not necessarily\n valid\n -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from\n envelope-from domain", "X-BeenThere": "linux-um@lists.infradead.org", "X-Mailman-Version": "2.1.34", "Precedence": "list", "List-Id": "<linux-um.lists.infradead.org>", "List-Unsubscribe": "<http://lists.infradead.org/mailman/options/linux-um>,\n <mailto:linux-um-request@lists.infradead.org?subject=unsubscribe>", "List-Archive": "<http://lists.infradead.org/pipermail/linux-um/>", "List-Post": "<mailto:linux-um@lists.infradead.org>", "List-Help": "<mailto:linux-um-request@lists.infradead.org?subject=help>", "List-Subscribe": "<http://lists.infradead.org/mailman/listinfo/linux-um>,\n <mailto:linux-um-request@lists.infradead.org?subject=subscribe>", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Sender": "\"linux-um\" <linux-um-bounces@lists.infradead.org>", "Errors-To": "linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org" }, "content": "From: Benjamin Berg <benjamin@sipsolutions.net>\n\nAdd the UML_SECCOMP configuration options. The next commits will add the\nsupport itself in smaller chunks.\n\nOnly x86_64 will be supported for now.\n\nSigned-off-by: Benjamin Berg <benjamin@sipsolutions.net>\n---\n arch/um/Kconfig | 19 +++++++++++++++++++\n 1 file changed, 19 insertions(+)", "diff": "diff --git a/arch/um/Kconfig b/arch/um/Kconfig\nindex 78de31ac1da7..e67c6402dd4b 100644\n--- a/arch/um/Kconfig\n+++ b/arch/um/Kconfig\n@@ -234,6 +234,25 @@ config KASAN_SHADOW_OFFSET\n \t set to a large value. On low-memory systems, try 0x7fff8000, as it fits\n \t into the immediate of most instructions, improving performance.\n \n+config UML_SECCOMP\n+\tbool \"seccomp based process tracing\"\n+\tdefault n\n+\tdepends on 64BIT\n+\thelp\n+\t Enable this option will enable seccomp based tracing of processes.\n+\n+\t UML must call syscalls from within the userspace processes when\n+\t mapping physical memory in response to page faults. Using seccomp\n+\t based tracing permits delaying these host syscalls until userspace\n+\t processes are resumed in order to run a task, thereby avoiding\n+\t overhead for the host by saving context switches.\n+\n+\t This feature speeds up e.g. fork() heavy workloads considerably.\n+\t However, the current implementation is not safe as userspace\n+\t processes can trigger any syscall to the host OS.\n+\n+\t If in doubt say N, as the feature has security implications.\n+\n endmenu\n \n source \"arch/um/drivers/Kconfig\"\n", "prefixes": [ "v2", "22/28" ] }