Re: Add support for TCG2 log format on UEFI systems
On Mon, Apr 1, 2019 at 4:52 PM Jarkko Sakkinen
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.
Re: Add support for TCG2 log format on UEFI systems
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) {
+ pr_err("No event log\n");
return -ENODEV;
+ }
will result
[2.654392] No event log
but still
[0.00] efi: ACPI 2.0=0x69ca2000 ACPI=0x69ca2000
TPMFinalLog=0x69ce4000 SMBIOS=0x69f63000 SMBIOS 3.0=0x69f62000
ESRT=0x69f3e818 MEMATTR=0x63475118
Tomas, I wonder if you are able to get the log out with some machine?
/Jarkko
