On 11/06/2020 04:55, Jason Andryuk wrote: > The hardcoded tpm_signature is too restrictive to detect many TPMs. For > instance, it doesn't accept a QEMU emulated TPM (VID 0x1014 DID 0x0001). > Make the TPM detection match that in rombios which accepts a wider > range. > > With this change, the TPM's TCPA ACPI table is generated and the guest > OS can automatically load the tpm_tis driver. It also allows seabios to > detect and use the TPM. However, seabios skips some TPM initialization > when running under Xen, so it will not populate any PCRs unless modified > to run the initialization under Xen. > > Signed-off-by: Jason Andryuk <[email protected]>
Reviewed-by: Andrew Cooper <[email protected]> This looks like it wants backporting, so CC'ing Paul for a 4.14 release ack.
