Re: Patch "tpm_tis: reserve chip for duration of tpm_tis_core_init" has been added to the 5.4-stable tree

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On Thu Jan 02 20, Dan Williams wrote:
On Thu, Jan 2, 2020 at 11:20 AM Dan Williams <dan.j.williams@xxxxxxxxx> wrote:

On Thu, Jan 2, 2020 at 9:21 AM Jarkko Sakkinen
<jarkko.sakkinen@xxxxxxxxxxxxxxx> wrote:
>
> On Tue, Dec 31, 2019 at 11:47:37AM -0800, Christian Bundy wrote:
> > > Christian, were you having any issues with interrupts? You system was going
> > > into this code as well.
> >
> > Unfortunately I'm now unable to test, sorry for the trouble. I replaced my BIOS
> > with UEFI firmware and the problem has disappeared. Please let me know if there
> > is anything else I can do to help.
> >
> > Christian
>
> Takashi wrote yesterday [*]:
>
> "I'm building a test kernel package based on 5.5-rc4 with Jarkko's revert
> patches"

Nice, I also built one of those. Just waiting for access to the system
again to gather results.

Ok, it looks good.

Tested-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Tested-by: Xiaoping Zhou <xiaoping.zhou@xxxxxxxxx>

It does report:

[    2.546660] tpm_tis IFX0740:00: 2.0 TPM (device-id 0x1B, rev-id 16)
[    2.546823] tpm tpm0: tpm_try_transmit: send(): error -5

That is the tpm2_get_tpm_pt call for testing the interrupts failing,
and is expected with the reverts.

[    2.546824] tpm tpm0: [Firmware Bug]: TPM interrupt not working,
polling instead

...at boot, but tpm2_nvlist works ok.





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