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 DCA5DF99C6E for ; Sat, 18 Apr 2026 00:22:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Q6ZJIXhd4zjFqjDlmwifqG5q2HSX1yh116B7+fCpOk4=; b=vJ5JLHe8r3amnIEsYWTnbu/Zxc 3Q8+9FhyH/prq5QTYVBCZYDAi0dWdXDHYEUPQLEM2GD373ly6H2UKHEVNHNK+nVCYGWIPnGnEisp4 FgJq5BRXIbjlR9U5rgE7gYM52IMNAatfYo5LcO9XAdNLuNZn1mveUaIQ4Y61V17kEFnKZjwhDg0nN aykpIlnCSwZFHW/7RgSvTaNZEbP91IZAAY5PsFYUzbfJS9PaPDU83AuO8XbY0cj+2gk1jAKzb2Eio q0rpnjWliv3G7ugaFbX9UqTiJe1O3kPuPChJItTCwUu5K7dEr8DfViN+PCxOutnJdJacEiYH5KYAC aIkQHGPQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1wDtSP-00000004bD1-1bJw; Sat, 18 Apr 2026 00:22:45 +0000 Received: from pdx-out-009.esa.us-west-2.outbound.mail-perimeter.amazon.com ([35.155.198.111]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1wDtSL-00000004bAv-0Hgg for linux-arm-kernel@lists.infradead.org; Sat, 18 Apr 2026 00:22:43 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazoncorp2; t=1776471761; x=1808007761; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Q6ZJIXhd4zjFqjDlmwifqG5q2HSX1yh116B7+fCpOk4=; b=pX3LjERO0nMEae8mesgeyagDgWLZfaHOAiCl7H28aY6k8qgVsK+kU7dr 8atXd3AtofzF6rvMvkejkmmMKEEXZXv83O3i3K8BhrNstHGx1YvBJbNU2 Q0Ku7myc7qP2pyeBPpJ1A8V1BExjbDeC2UbvTwCZFcKb/+K9+JULTzmCT JBheQArrHK0gvf5oJsGAAST6ZvPUdRO86K8oExLgf2lI8l1yL7dtq7JVQ mG2dn/kJ3OiYobbdKsyZYwt+QF/GzdH4r8S3sWEkWsDTMGCep+er8Xh+T NBIxUy8HmbtEd2VDA9zn16H1OOHrdMWlRf94Dglc5B2GBdqIVdyKd6qWw g==; X-CSE-ConnectionGUID: WRko0on/TIeVMPUV0k21Kg== X-CSE-MsgGUID: u6Kwv34+Q4m+agVV8580mw== X-IronPort-AV: E=Sophos;i="6.23,185,1770595200"; d="scan'208";a="17480678" Received: from ip-10-5-12-219.us-west-2.compute.internal (HELO smtpout.naws.us-west-2.prod.farcaster.email.amazon.dev) ([10.5.12.219]) by internal-pdx-out-009.esa.us-west-2.outbound.mail-perimeter.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Apr 2026 00:22:38 +0000 Received: from EX19MTAUWC001.ant.amazon.com [205.251.233.105:21526] by smtpin.naws.us-west-2.prod.farcaster.email.amazon.dev [10.0.6.131:2525] with esmtp (Farcaster) id 79c28a71-ed6b-48e1-89db-70e9249363a1; Sat, 18 Apr 2026 00:22:38 +0000 (UTC) X-Farcaster-Flow-ID: 79c28a71-ed6b-48e1-89db-70e9249363a1 Received: from EX19D001UWA001.ant.amazon.com (10.13.138.214) by EX19MTAUWC001.ant.amazon.com (10.250.64.174) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.37; Sat, 18 Apr 2026 00:22:38 +0000 Received: from dev-dsk-wanjay-2c-d25651b4.us-west-2.amazon.com (172.19.198.4) by EX19D001UWA001.ant.amazon.com (10.13.138.214) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.37; Sat, 18 Apr 2026 00:22:37 +0000 From: Jay Wang To: Herbert Xu , "David S . Miller" , , Masahiro Yamada , CC: Jay Wang , Vegard Nossum , Nicolai Stange , Ilia Okomin , Hazem Mohamed Abuelfotoh , Bjoern Doebel , Martin Pohlack , Benjamin Herrenschmidt , Nathan Chancellor , Nicolas Schier , Catalin Marinas , Will Deacon , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H . Peter Anvin" , Luis Chamberlain , Petr Pavlu , Daniel Gomez , Sami Tolvanen , David Howells , "David Woodhouse" , Jarkko Sakkinen , "Ignat Korchagin" , Lukas Wunner , "Alexei Starovoitov" , Daniel Borkmann , "Andrii Nakryiko" , , , Subject: [PATCH v2 08/19] crypto: fips140: add crypto module loader Date: Sat, 18 Apr 2026 00:20:16 +0000 Message-ID: <20260418002032.2877-9-wanjay@amazon.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260418002032.2877-1-wanjay@amazon.com> References: <20260418002032.2877-1-wanjay@amazon.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [172.19.198.4] X-ClientProxiedBy: EX19D031UWC002.ant.amazon.com (10.13.139.212) To EX19D001UWA001.ant.amazon.com (10.13.138.214) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260417_172241_179001_A110F516 X-CRM114-Status: GOOD ( 15.72 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add a crypto module loader mechanism that loads a precompiled crypto kernel module that is embedded in vmlinux image directly from memory (whose address stored in _binary_fips140_ko_start/end) during early boot. This is built based on Vegard Nossum and Saeed Mirzamohammadi , the fips_loader_init is picked up. But different from them, such loader is not executed as arch_initcall_sync(), but rather as a thread along main kernel init to ensure proper initialization sequencing (Details are in later patch). Signed-off-by: Jay Wang --- crypto/fips140/fips140-loader.c | 55 +++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 crypto/fips140/fips140-loader.c diff --git a/crypto/fips140/fips140-loader.c b/crypto/fips140/fips140-loader.c new file mode 100644 index 0000000000000..369ab3ceede9c --- /dev/null +++ b/crypto/fips140/fips140-loader.c @@ -0,0 +1,55 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * FIPS 140 Early Loader + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +extern const u8 _binary_fips140_ko_start[]; +extern const u8 _binary_fips140_ko_end[]; +const u8 *_binary_crypto_ko_start; +EXPORT_SYMBOL_GPL(_binary_crypto_ko_start); +const u8 *_binary_crypto_ko_end; +EXPORT_SYMBOL_GPL(_binary_crypto_ko_end); + +/* Function to load crypto module from memory */ +extern int load_crypto_module_mem(const char *mem, size_t size); + +static void load_prepare(void) +{ + _binary_crypto_ko_start = _binary_fips140_ko_start; + _binary_crypto_ko_end = _binary_fips140_ko_end; +} + +static int fips_loader_init(void) +{ + load_prepare(); + + const void *ko_mem = _binary_crypto_ko_start; + size_t ko_size = _binary_crypto_ko_end - _binary_crypto_ko_start; + void *vmalloc_mem; + int ret; + + // Copy to vmalloc'd memory since load_module expects to free it + vmalloc_mem = vmalloc(ko_size); + if (!vmalloc_mem) { + pr_err("FIPS140 loader: failed to allocate memory\n"); + return -ENOMEM; + } + + memcpy(vmalloc_mem, ko_mem, ko_size); + + ret = load_crypto_module_mem(vmalloc_mem, ko_size); // Skip signature check + if (ret) + panic("FIPS140 loader: module loading error\n"); + + vfree(vmalloc_mem); // Free after successful module loading + return ret; +} -- 2.47.3