Dear Jarko,
Am 16.02.21 um 09:39 schrieb Jarkko Sakkinen:
On Tue, Feb 16, 2021 at 09:26:49AM +0100, Paul Menzel wrote:
Am 16.02.21 um 09:17 schrieb Jarkko Sakkinen:
From: Lukasz Majczak <lma@xxxxxxxxxxxx>
This is shown with Samsung Chromebook Pro (Caroline) with TPM 1.2
(SLB 9670):
[ 4.324298] TPM returned invalid status
[ 4.324806] WARNING: CPU: 2 PID: 1 at drivers/char/tpm/tpm_tis_core.c:275 tpm_tis_status+0x86/0x8f
Background
==========
TCG PC Client Platform TPM Profile (PTP) Specification, paragraph 6.1 FIFO
Interface Locality Usage per Register, Table 39 Register Behavior Based on
Locality Setting for FIFO - a read attempt to TPM_STS_x Registers returns
0xFF in case of lack of locality. The described situation manifests itself
with the following warning trace:
Did you miss to paste the trace?
[…]
There is partial trace, which I took from the Lukasz patch. IMHO that is
sufficient.
Reading the paragraph with “ with the following warning trace:” (and
colon), I would expect to see some trace, and not the next section
header *The fix*.
And I have no means to generate the full trace anyway.
No problem.
Kind regards,
Paul
