From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Gunthorpe Subject: Re: Regression between Linux 3.16 and 4.8/4.9 on Lenovo X60 with coreboot Date: Thu, 6 Apr 2017 13:10:13 -0600 Message-ID: <20170406191013.GA25011@obsidianresearch.com> References: <20170406165557.GD7657@obsidianresearch.com> <3d62bd7d4addc020c2f8e3c2edf3280e@molgen.mpg.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <3d62bd7d4addc020c2f8e3c2edf3280e-KUpvgZVWgV9o1qOY/usvUg@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: tpmdd-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org To: Paul Menzel Cc: "Maciej S. Szmigiero" , tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, GNUtoo-n+LsquliYkMdnm+yROfE0A@public.gmane.org List-Id: tpmdd-devel@lists.sourceforge.net On Thu, Apr 06, 2017 at 08:26:22PM +0200, Paul Menzel wrote: > >We added direct ACPI binding to the driver in addition to PNP, so if > >you have an ACPI table it goes down that path and does some additional > >validation of what is in the TPM. The BIOS must provide a > >acpi_dev_resource_memory and a ACPI_SIG_TPM2 for the ACPI entry at a > >minimum. > > Is it correct, that this is added in/for 4.11, so just recently? Testing > with Linux 4.10.8, everything is detected just fine. No, it is quite a bit older.. And it should only go for TPM2, which I don't think you have?? Maybe Jarkko has a guess, but sure sounds like something is recently broken in 4.11 Jason ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot