> > On Wed, Aug 28, 2019 at 01:36:30AM +0900, Seunghun Han wrote: > > > I got your point. Is there any problem if some regions which don't > > need to be handled in NVS area are saved and restored? If there is a > > problem, how about adding code for ignoring the regions in NVS area to > > the nvs.c file like Jarkko said? If we add the code, we can save and > > restore NVS area without driver's interaction. > > The only thing that knows which regions should be skipped by the NVS > driver is the hardware specific driver, so the TPM driver needs to ask > the NVS driver to ignore that region and grant control to the TPM > driver. > > -- > Matthew Garrett | mj...@srcf.ucam.org
Thank you, Matthew and Jarkko. It seems that the TPM driver needs to handle the specific case that TPM regions are in the NVS. I would make a patch that removes TPM regions from the ACPI NVS by requesting to the NVS driver soon. Jarkko, I would like to get some advice on it. What do you think about removing TPM regions from the ACPI NVS in TPM CRB driver? If you don't mind, I would make the patch about it. Seunghun
