Re: Add support for TCG2 log format on UEFI systems

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On Mon, Apr 01, 2019 at 08:32:26PM -0700, Matthew Garrett wrote:
> On Mon, Apr 1, 2019 at 4:52 PM Jarkko Sakkinen
> <jarkko.sakkinen@xxxxxxxxxxxxxxx> wrote:
> >
> > On Wed, Feb 27, 2019 at 12:26:54PM -0800, Matthew Garrett wrote:
> > > Identical to V4, but based on tpmdd-next
> >
> > OK, so on my GLK NUC I get valid final log and invalid event log
> > after adding some extra klogs.
> >
> > I.e.
> >
> > -       if (efi.tpm_log == EFI_INVALID_TABLE_ADDR)
> > +       if (efi.tpm_log == EFI_INVALID_TABLE_ADDR) {
> 
> Just to make sure - are you booting via the EFI boot stub? We need to
> obtain the boot log before ExitBootServices() is called, so if you're
> booting directly into the 32-bit entry point (eg, by using the "linux"
> command in grub) then you won't get a log.

... and I was wondering why it used to work when I tested the first
flush of patches. Ugh, sorry. The only excuse is too much multitasking
lately.

Anyway:

Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>

I'll apply all patches soonish and include them to the next PR.

/Jarkko



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