From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bedivere.hansenpartnership.com (bedivere.hansenpartnership.com [96.44.175.130]) by mx.groups.io with SMTP id smtpd.web12.1009.1619630368992267620 for ; Wed, 28 Apr 2021 10:19:29 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@hansenpartnership.com header.s=20151216 header.b=PzqVUl87; spf=pass (domain: hansenpartnership.com, ip: 96.44.175.130, mailfrom: james.bottomley@hansenpartnership.com) Received: from localhost (localhost [127.0.0.1]) by bedivere.hansenpartnership.com (Postfix) with ESMTP id 8C58A12806BB; Wed, 28 Apr 2021 10:19:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=hansenpartnership.com; s=20151216; t=1619630368; bh=XsbwKF0gNQSiWM6uXV7xbmwmUgDN3gTe+EvQtCkvH2c=; h=Message-ID:Subject:From:To:Date:In-Reply-To:References:From; b=PzqVUl87jAM5AbV3ny+JQMaejeNsPBar19CUHQmEk8q+9c23lyRDQQTJ92ZKnjpe3 Zu/tHQTS+xj5pLG+CHgCY3NdWFxhYlVbvmUAihHn33DG4YAZkkBCdOBlP+0ZYPLXzB 7fex2OXnhV7FEwXx6Hmq+z5whTxRX82QcF2rVReA= Received: from bedivere.hansenpartnership.com ([127.0.0.1]) by localhost (bedivere.hansenpartnership.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id b98jjHC-zcYn; Wed, 28 Apr 2021 10:19:28 -0700 (PDT) Received: from jarvis.int.hansenpartnership.com (unknown [IPv6:2601:600:8280:66d1::527]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by bedivere.hansenpartnership.com (Postfix) with ESMTPSA id 2CEF612806B7; Wed, 28 Apr 2021 10:19:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=hansenpartnership.com; s=20151216; t=1619630368; bh=XsbwKF0gNQSiWM6uXV7xbmwmUgDN3gTe+EvQtCkvH2c=; h=Message-ID:Subject:From:To:Date:In-Reply-To:References:From; b=PzqVUl87jAM5AbV3ny+JQMaejeNsPBar19CUHQmEk8q+9c23lyRDQQTJ92ZKnjpe3 Zu/tHQTS+xj5pLG+CHgCY3NdWFxhYlVbvmUAihHn33DG4YAZkkBCdOBlP+0ZYPLXzB 7fex2OXnhV7FEwXx6Hmq+z5whTxRX82QcF2rVReA= Message-ID: <5e515f291a1a79c6564ad99824dd9b5bb03a0e94.camel@HansenPartnership.com> Subject: Re: [edk2-devel] Problem: TPM 2.0 event log by OVMF is shown empty in Linux kernel versions after 5.8 From: "James Bottomley" To: devel@edk2.groups.io, public@thson.de, Laszlo Ersek Cc: ardb+tianocore@kernel.org Date: Wed, 28 Apr 2021 10:19:27 -0700 In-Reply-To: <43dd4c32-4084-beaf-4f07-7f429fad5a7d@thson.de> References: <8f68431ac5e7ef1f28037856f92da8327cdfb737.camel@HansenPartnership.com> <43dd4c32-4084-beaf-4f07-7f429fad5a7d@thson.de> User-Agent: Evolution 3.34.4 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit On Wed, 2021-04-28 at 16:56 +0200, Thore Sommer wrote: > TPM2 @ 0x0000000000000000 > 0000: 54 50 4D 32 4C 00 00 00 04 7F 42 4F 43 48 53 20 TPM2L.....BOCHS > 0010: 42 58 50 43 54 50 4D 32 01 00 00 00 42 58 50 43 BXPCTPM2....BXPC > 0020: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > 0030: 06 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > 0040: 00 00 01 00 00 C0 BB 7E 00 00 00 00 .......~.... This is actually pretty much exactly what I see in the working OVMF TPM2 @ 0x0000000000000000 0000: 54 50 4D 32 4C 00 00 00 04 DB 42 4F 43 48 53 20 TPM2L.....BOCHS 0010: 42 58 50 43 54 50 4D 32 01 00 00 00 42 58 50 43 BXPCTPM2....BXPC 0020: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0030: 06 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0040: 00 00 01 00 00 60 BE 7F 00 00 00 00 .....`...... So it looks like the empty acpi table theory doesn't fly. James