[coreboot] RV: Error booting with TPM enabled.

Nico Huber nico.h at gmx.de
Fri Jun 29 15:47:09 CEST 2018

On 29.06.2018 12:48, Jorge Fernandez Monteagudo wrote:
> Ok, I think I've found the problem... If I force in 'src/drivers/pc80/tpm/tis.c'
> the path value to "\\_SB_.PCI0.LIBR" it works!
> Now, I'll try to guess from where the "\_SB.\_SB.LIBR" current value comes from...
> but now it's working.

This is expected if you still haven't implemented `.acpi_name` for
your northbridge device. In case you haven't tried it yet: Just copy
what `nb/amd/pi/00730F01/northbridge.c` does about `.acpi_name` to

Again, if the domain device doesn't implement `.acpi_name`, its parent
device will be asked. And in this case the parent, the root device,
always returns `\_SB`.


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