From: "Xing, Cedric" <cedric.xing@intel.com>
To: Sathyanarayanan Kuppuswamy
<sathyanarayanan.kuppuswamy@linux.intel.com>,
Dan Williams <dan.j.williams@intel.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
<x86@kernel.org>, "H. Peter Anvin" <hpa@zytor.com>
Cc: <linux-kernel@vger.kernel.org>, <linux-coco@lists.linux.dev>,
"Dionna Amalie Glaze" <dionnaglaze@google.com>,
James Bottomley <James.Bottomley@HansenPartnership.com>,
Dan Middleton <dan.middleton@linux.intel.com>,
Mikko Ylinen <mikko.ylinen@linux.intel.com>
Subject: Re: [PATCH v2 0/4] tsm: Unified Measurement Register ABI for TVMs
Date: Mon, 17 Mar 2025 22:48:00 -0500 [thread overview]
Message-ID: <7a160eed-5c27-4216-89e3-14bf61e1d2ed@intel.com> (raw)
In-Reply-To: <8e188239-44d2-42ad-9fa9-b46ad0a5b5bb@linux.intel.com>
On 3/17/2025 6:15 PM, Sathyanarayanan Kuppuswamy wrote:
[...]
> Any comment on the missing event log support? Extending the measurements
> without logging the event should break the tractability feature. Can you
> add
> info about why it is ok to just add extension support for now?
>
The event log support was once proposed and discussed. Please see
https://lore.kernel.org/all/20240907-tsm-rtmr-v1-0-12fc4d43d4e7@intel.com/
for details. In short, it's difficult to define a log format that fits
all applications, and luckily it doesn't have to be solved in kernel
mode, so we leave it out for now.
next prev parent reply other threads:[~2025-03-18 3:48 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-24 3:20 [PATCH v2 0/4] tsm: Unified Measurement Register ABI for TVMs Cedric Xing
2025-02-24 3:20 ` [PATCH v2 1/4] tsm: Add TVM Measurement Register support Cedric Xing
2025-03-06 1:20 ` Huang, Kai
2025-03-12 18:26 ` Xing, Cedric
2025-03-12 23:11 ` Huang, Kai
2025-03-17 22:49 ` Xing, Cedric
2025-03-19 11:28 ` Huang, Kai
2025-03-19 14:41 ` Dionna Amalie Glaze
2025-02-24 3:20 ` [PATCH v2 2/4] tsm: Add TSM measurement sample code Cedric Xing
2025-02-24 3:20 ` [PATCH v2 3/4] x86/tdx: Add tdx_mcall_extend_rtmr() interface Cedric Xing
2025-02-24 3:20 ` [PATCH v2 4/4] x86/tdx: Expose TDX MRs through TSM sysfs interface Cedric Xing
2025-02-27 22:06 ` [PATCH v2 0/4] tsm: Unified Measurement Register ABI for TVMs Jianxiong Gao
2025-03-17 23:15 ` Sathyanarayanan Kuppuswamy
2025-03-18 3:48 ` Xing, Cedric [this message]
2025-03-18 12:44 ` James Bottomley
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