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GET /api/patches/1707743/?format=api
{ "id": 1707743, "url": "http://patchwork.ozlabs.org/api/patches/1707743/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-um/patch/20221122100759.208290-22-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": "<20221122100759.208290-22-benjamin@sipsolutions.net>", "list_archive_url": null, "date": "2022-11-22T10:07:52", "name": "[v2,21/28] um: Use struct uml_pt_regs for copy_context_skas0", "commit_ref": null, "pull_url": null, "state": "not-applicable", "archived": false, "hash": "30678485332e3255e7de7ae335bda1a7802d03e9", "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/20221122100759.208290-22-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/1707743/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/1707743/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; helo=bombadil.infradead.org;\n envelope-from=linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org;\n receiver=<UNKNOWN>)", "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n secure) header.d=lists.infradead.org header.i=@lists.infradead.org\n header.a=rsa-sha256 header.s=bombadil.20210309 header.b=i9pbQbbE;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n secure) header.d=sipsolutions.net header.i=@sipsolutions.net\n header.a=rsa-sha256 header.s=mail header.b=u3izfO0P;\n\tdkim-atps=neutral" ], "Received": [ "from bombadil.infradead.org (bombadil.infradead.org\n [IPv6:2607:7c80:54:3::133])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange X25519 server-signature ECDSA (P-384) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4NGg5V32sJz23nl\n\tfor <incoming@patchwork.ozlabs.org>; Tue, 22 Nov 2022 21:11:26 +1100 (AEDT)", "from localhost ([::1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux))\n\tid 1oxQFG-007fto-My; Tue, 22 Nov 2022 10:11:14 +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 1oxQF0-007feS-Mn\n\tfor linux-um@lists.infradead.org; Tue, 22 Nov 2022 10:11:03 +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 1oxQEs-006IGn-2V;\n\tTue, 22 Nov 2022 11:10:50 +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=E1zLsdqYqpDaSP9/hgP04MeXltbn+JTexNrFkddBsh8=; b=i9pbQbbEQO/ld/\n\tJKUluBORXbJsRic15HapFhDV8lVVjK3z9dLdJSBDR17Np+tDF2YBfVQ/9btL4OMJlMU7aDR/qyxbt\n\tCC0Lveio9pOIbO/qaDJiEM9/Yd8HD/0TYMWrHQ2/+CqqrK0WEuVxqRKJwH3LMdVM3gs4tr+AHFzju\n\t3vKmhLxikOEP7Rso7JzTVHit+sjWfY2zJCJxZ5I4xqw1RwETcujaZwdhWwsS1ecQLh/Y0JXKpu2RS\n\tswZbMdEQ4lK0Loi+72LXODAZ/cxFlRcxdwIqm+p6bPSqntkBp4YjIwej0bAOOktpdK5Q4SljlMSHh\n\tSaSC+aP3QdvLGvww2JLg==;", "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=L5lwHk0HZHzNpW+yWG8h7bvuqrEFplbPaGqnoi6nvOE=;\n\tt=1669111858; x=1670321458; b=u3izfO0PVm7FlXqk/kTl7hu+jTXWFpAeBIfCEAeVZ+hqyyk\n\tWJFO7LJwE55oPnytDDKv45fGkn9EaAHenUt0snVDJJAuAy4gL2726X5UegS6DWoiMkwd/AS2gHi3l\n\tk9sh3nlq9rZT2D/RQfW6QRKEk1tFJNiN+CD+YoUULRfVXw4pcb1AAAkxKU6Cu05Z2/a/cDYxfLA03\n\tvMlDT6CLTJWAUzPH6x4Tn3Pm0Q0w7RJ46ciXySHV3JT8ecCHSGOR5HUdAK3/ZJI65vin31ZfAPrWu\n\tDLQvWy2Mm7mdlP2iHFtLdokHkDrSXmRgUNfcPpvVHS4zqrArkcxUHgCLTqturVRw==;" ], "From": "benjamin@sipsolutions.net", "To": "linux-um@lists.infradead.org", "Cc": "Benjamin Berg <benjamin@sipsolutions.net>", "Subject": "[PATCH v2 21/28] um: Use struct uml_pt_regs for copy_context_skas0", "Date": "Tue, 22 Nov 2022 11:07:52 +0100", "Message-Id": "<20221122100759.208290-22-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_021058_907262_20FC1A2B ", "X-CRM114-Status": "UNSURE ( 9.95 )", "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> This is\n done\n as preparation for seccomp support as we have no helper to copy the\n registers\n from a plain array. Signed-off-by: Benjamin Berg\n <benjamin@sipsolutions.net>\n --- arch/um/os-Linux/skas/process.c | 23 +++++++++++ 1 file changed,\n 11 insertions(+),\n 12 deletions(-)\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\nThis is done as preparation for seccomp support as we have no helper to\ncopy the registers from a plain array.\n\nSigned-off-by: Benjamin Berg <benjamin@sipsolutions.net>\n---\n arch/um/os-Linux/skas/process.c | 23 +++++++++++------------\n 1 file changed, 11 insertions(+), 12 deletions(-)", "diff": "diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c\nindex 1bc7e5aa2fc1..cdbab5a864e4 100644\n--- a/arch/um/os-Linux/skas/process.c\n+++ b/arch/um/os-Linux/skas/process.c\n@@ -458,22 +458,21 @@ void userspace(struct uml_pt_regs *regs, unsigned long *aux_fp_regs)\n \t}\n }\n \n-static unsigned long thread_regs[MAX_REG_NR];\n-static unsigned long thread_fp_regs[FP_SIZE];\n+static struct uml_pt_regs thread_regs;\n \n static int __init init_thread_regs(void)\n {\n-\tget_safe_registers(thread_regs, thread_fp_regs);\n+\tget_safe_registers(thread_regs.gp, thread_regs.fp);\n \t/* Set parent's instruction pointer to start of clone-stub */\n-\tthread_regs[REGS_IP_INDEX] = STUB_CODE +\n-\t\t\t\t(unsigned long) stub_clone_handler -\n-\t\t\t\t(unsigned long) __syscall_stub_start;\n+\tthread_regs.gp[REGS_IP_INDEX] = STUB_CODE +\n+\t\t\t\t\t(unsigned long)stub_clone_handler -\n+\t\t\t\t\t(unsigned long)__syscall_stub_start;\n \n \t/* syscall data as a temporary stack area (top half). */\n-\tthread_regs[REGS_SP_INDEX] = STUB_DATA +\n-\t\t\t\t offsetof(struct stub_data, syscall_data) +\n-\t\t\t\t sizeof(((struct stub_data *) 0)->syscall_data) -\n-\t\t\t\t sizeof(void *);\n+\tthread_regs.gp[REGS_SP_INDEX] = STUB_DATA +\n+\t\t\t\t\toffsetof(struct stub_data, syscall_data) +\n+\t\t\t\t\tsizeof(((struct stub_data *)0)->syscall_data) -\n+\t\t\t\t\tsizeof(void *);\n \treturn 0;\n }\n \n@@ -502,7 +501,7 @@ int copy_context_skas0(struct mm_id *id, struct mm_id *from)\n \t\t.child_err = -ESRCH,\n \t});\n \n-\terr = ptrace_setregs(from->u.pid, thread_regs);\n+\terr = ptrace_setregs(from->u.pid, thread_regs.gp);\n \tif (err < 0) {\n \t\terr = -errno;\n \t\tprintk(UM_KERN_ERR \"%s : PTRACE_SETREGS failed, pid = %d, errno = %d\\n\",\n@@ -510,7 +509,7 @@ int copy_context_skas0(struct mm_id *id, struct mm_id *from)\n \t\treturn err;\n \t}\n \n-\terr = put_fp_registers(from->u.pid, thread_fp_regs);\n+\terr = put_fp_registers(from->u.pid, thread_regs.fp);\n \tif (err < 0) {\n \t\tprintk(UM_KERN_ERR \"%s : put_fp_registers failed, pid = %d, err = %d\\n\",\n \t\t __func__, from->u.pid, err);\n", "prefixes": [ "v2", "21/28" ] }