From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.14]) (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 4A25933991; Mon, 10 Mar 2025 13:54:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.14 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741614899; cv=none; b=lkJ1e7eHzJROS6DreS5GZFuqqpL6UoTmGsBkTW28bkD+tqUjHFwusckRsAbNJ8n0a77Papqve4dcnplewR2SnNYriTyZuPvsFRZ5Rzj25kh5fTYNEyFsJPn8vQHErzdvWtpEA67OCmkMv5WfCyj5uLLrXl64sNvFVmx2QTnPGWo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741614899; c=relaxed/simple; bh=Qfk5uLS2oDl3kGJq3IrKIjKContvqjOCnHIknUaQRtw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=kLjIlCrZdjV1h4XqO6XCgaztVGWYwopfTcIO9eQPxf7fnYhw9vIk/leCK9K2GHSm/6wP3n/ae9IHY9KVDX9o/jqdTqx5DNilga8Yj79niiiqWhA6KescBuKrutjacpzwGCY6aW8gHqnOkjeDFJRADJ/Gzzy3UnqZhlt2UrEULXU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=Osrq3WrQ; arc=none smtp.client-ip=192.198.163.14 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="Osrq3WrQ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1741614898; x=1773150898; h=date:from:to:cc:subject:message-id:references: mime-version:content-transfer-encoding:in-reply-to; bh=Qfk5uLS2oDl3kGJq3IrKIjKContvqjOCnHIknUaQRtw=; b=Osrq3WrQaGBSwDBsdeifUF3wn4bWJvCYlJCejk4NVL0bMSvb51SmraUK rkCRcrJKFIVRSnZIRklT0DoFLtv450rANa7ixjS3vKpXlxDe6B+tBAagY g3YLrfpKoQrbAbSRNmjBOFUWH7oxgpJKKboX4oRas15eZuKHsnvl0Y36B krfAnmOWwWkjaA06XKNyuYJTt6KkeGCUn3nqAZdrcr5WWteFNsb5LxmaN qpLljTHeNfZabRNG3YHWkc4YrfSG3S/Y7J/Luw6UGgBSmO5yCD+iwGtJF q6F8091E3dEtQIqPyYiZuzneo+tMHTxIIXFBbe1c4V8UZAwZajKPgBhEj w==; X-CSE-ConnectionGUID: NSk7AeGyRu2WXGOk5AoNRQ== X-CSE-MsgGUID: 4jBYtBGHRMiiL4JRnN9PpQ== X-IronPort-AV: E=McAfee;i="6700,10204,11369"; a="42824373" X-IronPort-AV: E=Sophos;i="6.14,236,1736841600"; d="scan'208";a="42824373" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by fmvoesa108.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Mar 2025 06:54:57 -0700 X-CSE-ConnectionGUID: Zyumlb35RFiFTMzcAl2G7Q== X-CSE-MsgGUID: WW8DP6CaQoOvEYtRjqLu7A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.14,236,1736841600"; d="scan'208";a="125221639" Received: from smile.fi.intel.com ([10.237.72.58]) by orviesa005.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Mar 2025 06:54:53 -0700 Received: from andy by smile.fi.intel.com with local (Exim 4.98) (envelope-from ) id 1trdak-00000001GpQ-13y8; Mon, 10 Mar 2025 15:54:50 +0200 Date: Mon, 10 Mar 2025 15:54:50 +0200 From: "andriy.shevchenko@linux.intel.com" To: Robin Murphy Cc: Aditya Garg , "gregkh@linuxfoundation.org" , "bhelgaas@google.com" , "joro@8bytes.org" , "will@kernel.org" , "linux-staging@lists.linux.dev" , Linux Kernel Mailing List , "linux-pci@vger.kernel.org" , "iommu@lists.linux.dev" , Aun-Ali Zaidi , "paul@mrarm.io" , Orlando Chamberlain Subject: Re: [PATCH RFC] staging: Add driver to communicate with the T2 Security Chip Message-ID: References: <1A12CB39-B4FD-4859-9CD7-115314D97C75@live.com> Precedence: bulk X-Mailing-List: linux-staging@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo On Mon, Mar 10, 2025 at 01:49:13PM +0000, Robin Murphy wrote: > On 2025-03-09 8:40 am, Aditya Garg wrote: > > From: Paul Pawlowski > > > > This patch adds a driver named apple-bce, to add support for the T2 > > Security Chip found on certain Macs. > > > > The driver has 3 main components: > > > > BCE (Buffer Copy Engine) - this is what the files in the root directory > > are for. This estabilishes a basic communication channel with the T2. > > VHCI and Audio both require this component. > > > > VHCI - this is a virtual USB host controller; keyboard, mouse and > > other system components are provided by this component (other > > drivers use this host controller to provide more functionality). > > > > Audio - a driver for the T2 audio interface, currently only audio > > output is supported. > > > > Currently, suspend and resume for VHCI is broken after a firmware > > update in iBridge since macOS Sonoma. > I'm slightly puzzled why this was sent to the IOMMU maintainers when it > doesn't touch any IOMMU code, nor even contain any reference to the IOMMU > API at all... People like to put a random people to a random contributions :-) Aditya, you can utilise my "smart" script [1] to send the series to more-or-less relevant people (but definitely to the right ones ± potentially interested, it has a heuristics inside). [1]: https://github.com/andy-shev/home-bin-tools/blob/master/ge2maintainer.sh -- With Best Regards, Andy Shevchenko