From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from rn-mailsvcp-ppex-lapp34.apple.com (rn-mailsvcp-ppex-lapp34.apple.com [17.179.253.43]) by mx.groups.io with SMTP id smtpd.web12.4211.1663459854847337408 for ; Sat, 17 Sep 2022 17:10:54 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@apple.com header.s=20180706 header.b=wiIYxckp; spf=pass (domain: apple.com, ip: 17.179.253.43, mailfrom: afish@apple.com) Received: from pps.filterd (rn-mailsvcp-ppex-lapp34.rno.apple.com [127.0.0.1]) by rn-mailsvcp-ppex-lapp34.rno.apple.com (8.16.1.2/8.16.1.2) with SMTP id 28I09o9h014061; Sat, 17 Sep 2022 17:10:54 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=apple.com; h=content-type : content-transfer-encoding : from : mime-version : subject : date : message-id : references : cc : in-reply-to : to; s=20180706; bh=AmqW+2qeZDkRz+jrbDoo9/9uePHSsW14QqSaD5qP20g=; b=wiIYxckpJwWVSzarm2YlbskFqSO3WC7lyMa9xdj+7IcZWiAtfwCfk3eJ5fJee4CHFMLD fMZEiY/s32l1l1nE3I+pXzwTpfL5y4fwl05970tmtWMXvtqHoWJkzRTFMxLS9cn1V5c7 b062c0TfjfXtBbr6Z+ubPlfPKrLNeoAXWB7gkxqtiDbpRAC4PLEOZQXPBR6z0t4oVe/w A/TxCMesRDWG/9HKeJglYawSfRdpqDim1442X5a27IljlwUKYrfPkZ6/nfPuaGzP6Mgg +VuKSLw98X7rwF2Y7NP0EIwN54raS1pZ8nWPuKNrIjN+FxgGDBqWWfPEOpBh8PYXyrpm mw== Received: from ma-mailsvcp-mta-lapp02.corp.apple.com (ma-mailsvcp-mta-lapp02.corp.apple.com [10.226.18.134]) by rn-mailsvcp-ppex-lapp34.rno.apple.com with ESMTP id 3jna30d2wx-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO); Sat, 17 Sep 2022 17:10:54 -0700 Received: from ma-mailsvcp-mmp-lapp01.apple.com (ma-mailsvcp-mmp-lapp01.apple.com [17.32.222.14]) by ma-mailsvcp-mta-lapp02.corp.apple.com (Oracle Communications Messaging Server 8.1.0.19.20220711 64bit (built Jul 11 2022)) with ESMTPS id <0RID00DUOPU5GT10@ma-mailsvcp-mta-lapp02.corp.apple.com>; Sat, 17 Sep 2022 17:10:53 -0700 (PDT) Received: from process_milters-daemon.ma-mailsvcp-mmp-lapp01.apple.com by ma-mailsvcp-mmp-lapp01.apple.com (Oracle Communications Messaging Server 8.1.0.19.20220711 64bit (built Jul 11 2022)) id <0RID00X00PMEIQ00@ma-mailsvcp-mmp-lapp01.apple.com>; Sat, 17 Sep 2022 17:10:53 -0700 (PDT) X-Va-A: X-Va-T-CD: e915ecd4fc1993b8b202b52eccc235e2 X-Va-E-CD: b7fca271f79aec36c11a1def16071542 X-Va-R-CD: b0d0213f09ccaa9445b0ab1e996e00eb X-Va-CD: 0 X-Va-ID: a1fb67d3-d2c2-4e53-9f4d-f2a23e9f7f4c X-V-A: X-V-T-CD: e915ecd4fc1993b8b202b52eccc235e2 X-V-E-CD: b7fca271f79aec36c11a1def16071542 X-V-R-CD: b0d0213f09ccaa9445b0ab1e996e00eb X-V-CD: 0 X-V-ID: 41fdb142-6cdc-4112-8c79-36f8aa976182 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.528,18.0.895 definitions=2022-09-17_12:2022-09-15,2022-09-17 signatures=0 Received: from smtpclient.apple (unknown [17.232.175.244]) by ma-mailsvcp-mmp-lapp01.apple.com (Oracle Communications Messaging Server 8.1.0.19.20220711 64bit (built Jul 11 2022)) with ESMTPSA id <0RID00W89PU46U00@ma-mailsvcp-mmp-lapp01.apple.com>; Sat, 17 Sep 2022 17:10:53 -0700 (PDT) From: "Andrew Fish" MIME-version: 1.0 (1.0) Subject: Re: [edk2-devel] TPM2 EventLog EFI vs. ACPI Date: Sat, 17 Sep 2022 17:10:41 -0700 Message-id: References: Cc: devel@edk2.groups.io In-reply-to: To: Jason Andryuk X-Mailer: iPhone Mail (20A362) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.528,18.0.895 definitions=2022-09-17_12:2022-09-15,2022-09-17 signatures=0 Content-type: text/plain; charset=utf-8 Content-transfer-encoding: quoted-printable > On Sep 17, 2022, at 11:31 AM, Jason Andryuk wrote: >=20 > =EF=BB=BFOn Fri, Sep 16, 2022 at 10:28 PM Andrew Fish via groups.io > wrote: >>=20 >> Is it possible to query the address from fw_cfg? >=20 > Hi, Andrew, >=20 > I believe QEMU puts "commands" into fw_cfg, and OVMF processes them to > allocate the memory and write the address into the correct ACPI table > location. However, it seems to be done generically without awareness > that the Event Log is being allocated in this case. >=20 I understand, but I think there are other cases when you can query for more= specific information. For example you can get info on how to write an EFI = PCI Root Bridge drive, and the ACPI methods also implement a similar abstra= ction.=20 So it=E2=80=99s worth looking to see if that info is availible. > Regards, > Jason