From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2992D32B9AE; Mon, 19 Jan 2026 18:44:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.19 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768848253; cv=none; b=CoH7pRtxEXo6xw6gO97nErcMcuZfj/VE631+i7C0iO7lR8vazmPJ4RYhbAqvv8ojgnY3Vxj6i9K1/WZZyPTVpJ572ad+dPwzcsJ4eNCXwWWszWl3EcnTIMKF/l2XAp9mIp0qlGW6u7msSFkVhpvxoQkZ1FCES17kkpX7ZFgnVSE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768848253; c=relaxed/simple; bh=BMldLl77NMD8cmCWSX1A1dU6NeqpUmWsQbs3YjsAVhs=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=WuBno2zATmnT9O4hcRRXmi4IchkMfCc8BYds685t+rndk+AQQPMNPK95RzGMqLpDC9GYsEknygugxjv/ippkZtao3butRgXxPQKQclPulQmrRNRmvYF4fAGe6kmieNuosi/mrn7VTjmy+xkcXAtAx/qIiq+O3y+p06P10pQg34g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=XceDiyGj; arc=none smtp.client-ip=192.198.163.19 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="XceDiyGj" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1768848252; x=1800384252; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=BMldLl77NMD8cmCWSX1A1dU6NeqpUmWsQbs3YjsAVhs=; b=XceDiyGj1ri69lz6FZpA4TKGmac2DUJmkb7vmbSTtcuLRs7rRDu+29gd N/wpnWMwsp99kZUoD6c28pbTN5THEa9G0wF6IR8ugMD+i0IJHX3sZ0VNc GqqyLt5CvUP9N2K00pQdWMAzdUD/QC3guaXhLrTajsEjSUoUa0cl2XB7F gH9TNXly0cBdbHq/P9ScOlg55RQBzpzzLf2fmyJlgsTY29JpieMkVFFDJ 1zSSdy3SjFVof2Xw/+K5QhETl0uDT+uzEMAbGA/xAI0dgl4bVpRkxBgc7 YXbVzy0vnoMBFg4eqIdxXYBhDFmYbg77czA7wrfD9K9Md5dGxGxlyKdRu Q==; X-CSE-ConnectionGUID: zGyW0aF/R3OHzcGNOj0Okw== X-CSE-MsgGUID: /A1H5Up/RseMx/0vtSyyBw== X-IronPort-AV: E=McAfee;i="6800,10657,11676"; a="69074315" X-IronPort-AV: E=Sophos;i="6.21,238,1763452800"; d="scan'208";a="69074315" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Jan 2026 10:44:11 -0800 X-CSE-ConnectionGUID: tVjDHPwBRL6Hp+CAFZtr/w== X-CSE-MsgGUID: CYQx7FCnQ0uvk61ZGqxr9g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,238,1763452800"; d="scan'208";a="210416095" Received: from jmaxwel1-mobl.amr.corp.intel.com (HELO [10.125.111.250]) ([10.125.111.250]) by fmviesa005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Jan 2026 10:44:09 -0800 Message-ID: <79185163-bf8f-4490-9396-3fd73b7a0c73@intel.com> Date: Mon, 19 Jan 2026 10:44:08 -0800 Precedence: bulk X-Mailing-List: linux-integrity@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/3] integrity: Make arch_ima_get_secureboot integrity-wide To: Mimi Zohar , Ard Biesheuvel Cc: Coiby Xu , linux-integrity@vger.kernel.org, Heiko Carstens , Roberto Sassu , Catalin Marinas , Will Deacon , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , "Christophe Leroy (CS GROUP)" , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" , "H. Peter Anvin" , Roberto Sassu , Dmitry Kasatkin , Eric Snowberg , Paul Moore , James Morris , "Serge E. Hallyn" , Jarkko Sakkinen , "moderated list:ARM64 PORT (AARCH64 ARCHITECTURE)" , open list , "open list:LINUX FOR POWERPC (32-BIT AND 64-BIT)" , "open list:S390 ARCHITECTURE" , "open list:EXTENSIBLE FIRMWARE INTERFACE (EFI)" , "open list:SECURITY SUBSYSTEM" , "open list:KEYS/KEYRINGS_INTEGRITY" References: <20260115004328.194142-1-coxu@redhat.com> <20260115004328.194142-2-coxu@redhat.com> <8bfa859ed3a4f1cf0db0ab64d8c1c3b24684582a.camel@linux.ibm.com> <97b69bc79a5d9246f7a399510908c7b95b2e95e7.camel@linux.ibm.com> Content-Language: en-US From: Dave Hansen Autocrypt: addr=dave.hansen@intel.com; keydata= xsFNBE6HMP0BEADIMA3XYkQfF3dwHlj58Yjsc4E5y5G67cfbt8dvaUq2fx1lR0K9h1bOI6fC oAiUXvGAOxPDsB/P6UEOISPpLl5IuYsSwAeZGkdQ5g6m1xq7AlDJQZddhr/1DC/nMVa/2BoY 2UnKuZuSBu7lgOE193+7Uks3416N2hTkyKUSNkduyoZ9F5twiBhxPJwPtn/wnch6n5RsoXsb ygOEDxLEsSk/7eyFycjE+btUtAWZtx+HseyaGfqkZK0Z9bT1lsaHecmB203xShwCPT49Blxz VOab8668QpaEOdLGhtvrVYVK7x4skyT3nGWcgDCl5/Vp3TWA4K+IofwvXzX2ON/Mj7aQwf5W iC+3nWC7q0uxKwwsddJ0Nu+dpA/UORQWa1NiAftEoSpk5+nUUi0WE+5DRm0H+TXKBWMGNCFn c6+EKg5zQaa8KqymHcOrSXNPmzJuXvDQ8uj2J8XuzCZfK4uy1+YdIr0yyEMI7mdh4KX50LO1 pmowEqDh7dLShTOif/7UtQYrzYq9cPnjU2ZW4qd5Qz2joSGTG9eCXLz5PRe5SqHxv6ljk8mb ApNuY7bOXO/A7T2j5RwXIlcmssqIjBcxsRRoIbpCwWWGjkYjzYCjgsNFL6rt4OL11OUF37wL QcTl7fbCGv53KfKPdYD5hcbguLKi/aCccJK18ZwNjFhqr4MliQARAQABzUVEYXZpZCBDaHJp c3RvcGhlciBIYW5zZW4gKEludGVsIFdvcmsgQWRkcmVzcykgPGRhdmUuaGFuc2VuQGludGVs LmNvbT7CwXgEEwECACIFAlQ+9J0CGwMGCwkIBwMCBhUIAgkKCwQWAgMBAh4BAheAAAoJEGg1 lTBwyZKwLZUP/0dnbhDc229u2u6WtK1s1cSd9WsflGXGagkR6liJ4um3XCfYWDHvIdkHYC1t MNcVHFBwmQkawxsYvgO8kXT3SaFZe4ISfB4K4CL2qp4JO+nJdlFUbZI7cz/Td9z8nHjMcWYF IQuTsWOLs/LBMTs+ANumibtw6UkiGVD3dfHJAOPNApjVr+M0P/lVmTeP8w0uVcd2syiaU5jB aht9CYATn+ytFGWZnBEEQFnqcibIaOrmoBLu2b3fKJEd8Jp7NHDSIdrvrMjYynmc6sZKUqH2 I1qOevaa8jUg7wlLJAWGfIqnu85kkqrVOkbNbk4TPub7VOqA6qG5GCNEIv6ZY7HLYd/vAkVY E8Plzq/NwLAuOWxvGrOl7OPuwVeR4hBDfcrNb990MFPpjGgACzAZyjdmYoMu8j3/MAEW4P0z F5+EYJAOZ+z212y1pchNNauehORXgjrNKsZwxwKpPY9qb84E3O9KYpwfATsqOoQ6tTgr+1BR CCwP712H+E9U5HJ0iibN/CDZFVPL1bRerHziuwuQuvE0qWg0+0SChFe9oq0KAwEkVs6ZDMB2 P16MieEEQ6StQRlvy2YBv80L1TMl3T90Bo1UUn6ARXEpcbFE0/aORH/jEXcRteb+vuik5UGY 5TsyLYdPur3TXm7XDBdmmyQVJjnJKYK9AQxj95KlXLVO38lczsFNBFRjzmoBEACyAxbvUEhd GDGNg0JhDdezyTdN8C9BFsdxyTLnSH31NRiyp1QtuxvcqGZjb2trDVuCbIzRrgMZLVgo3upr MIOx1CXEgmn23Zhh0EpdVHM8IKx9Z7V0r+rrpRWFE8/wQZngKYVi49PGoZj50ZEifEJ5qn/H Nsp2+Y+bTUjDdgWMATg9DiFMyv8fvoqgNsNyrrZTnSgoLzdxr89FGHZCoSoAK8gfgFHuO54B lI8QOfPDG9WDPJ66HCodjTlBEr/Cwq6GruxS5i2Y33YVqxvFvDa1tUtl+iJ2SWKS9kCai2DR 3BwVONJEYSDQaven/EHMlY1q8Vln3lGPsS11vSUK3QcNJjmrgYxH5KsVsf6PNRj9mp8Z1kIG qjRx08+nnyStWC0gZH6NrYyS9rpqH3j+hA2WcI7De51L4Rv9pFwzp161mvtc6eC/GxaiUGuH BNAVP0PY0fqvIC68p3rLIAW3f97uv4ce2RSQ7LbsPsimOeCo/5vgS6YQsj83E+AipPr09Caj 0hloj+hFoqiticNpmsxdWKoOsV0PftcQvBCCYuhKbZV9s5hjt9qn8CE86A5g5KqDf83Fxqm/ vXKgHNFHE5zgXGZnrmaf6resQzbvJHO0Fb0CcIohzrpPaL3YepcLDoCCgElGMGQjdCcSQ+Ci FCRl0Bvyj1YZUql+ZkptgGjikQARAQABwsFfBBgBAgAJBQJUY85qAhsMAAoJEGg1lTBwyZKw l4IQAIKHs/9po4spZDFyfDjunimEhVHqlUt7ggR1Hsl/tkvTSze8pI1P6dGp2XW6AnH1iayn yRcoyT0ZJ+Zmm4xAH1zqKjWplzqdb/dO28qk0bPso8+1oPO8oDhLm1+tY+cOvufXkBTm+whm +AyNTjaCRt6aSMnA/QHVGSJ8grrTJCoACVNhnXg/R0g90g8iV8Q+IBZyDkG0tBThaDdw1B2l asInUTeb9EiVfL/Zjdg5VWiF9LL7iS+9hTeVdR09vThQ/DhVbCNxVk+DtyBHsjOKifrVsYep WpRGBIAu3bK8eXtyvrw1igWTNs2wazJ71+0z2jMzbclKAyRHKU9JdN6Hkkgr2nPb561yjcB8 sIq1pFXKyO+nKy6SZYxOvHxCcjk2fkw6UmPU6/j/nQlj2lfOAgNVKuDLothIxzi8pndB8Jju KktE5HJqUUMXePkAYIxEQ0mMc8Po7tuXdejgPMwgP7x65xtfEqI0RuzbUioFltsp1jUaRwQZ MTsCeQDdjpgHsj+P2ZDeEKCbma4m6Ez/YWs4+zDm1X8uZDkZcfQlD9NldbKDJEXLIjYWo1PH hYepSffIWPyvBMBTW2W5FRjJ4vLRrJSUoEfJuPQ3vW9Y73foyo/qFoURHO48AinGPZ7PC7TF vUaNOTjKedrqHkaOcqB185ahG2had0xnFsDPlx5y In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 1/18/26 10:25, Mimi Zohar wrote: > As not all arch's implement arch_integrity_get_secureboot, the definition in > include/linux/integrity.h would need to be updated. Something like: > > -#ifdef CONFIG_INTEGRITY_SECURE_BOOT > +#if (defined(CONFIG_INTEGRITY_SECURE_BOOT) && \ > + (defined(CONFIG_X86) && defined(CONFIG_EFI)) || defined(CONFIG_S390) \ > + || defined(CONFIG_PPC_SECURE_BOOT)) > > Then IMA_SECURE_AND_OR_TRUSTED_BOOT and EVM could select INTEGRITY_SECURE_BOOT, > as suggested. This seems to be going a wee bit sideways. :) This kind of CONFIG complexity really should be left to Kconfig. C macros really aren't a great place to do it. The other idiom we use a lot is this in generic code: #ifndef arch_foo static inline void arch_foo(void) {} #endif Then all you have to do is make sure the arch header that #defines it is included before the generic code. I'm not a super huge fan of these because it can be hard to tell (for humans at least) _if_ the architecture has done the #define. But it sure beats that #ifdef maze.