Re: [PATCH V3 0/4] Add SEV_INIT_EX support

From: Sean Christopherson
Date: Tue Nov 02 2021 - 12:39:49 EST


On Tue, Nov 02, 2021, Peter Gonda wrote:
> SEV_INIT requires users to unlock their SPI bus for the PSP's non
> volatile (NV) storage. Users may wish to lock their SPI bus for numerous
> reasons, to support this the PSP firmware supports SEV_INIT_EX. INIT_EX
> allows the firmware to use a region of memory for its NV storage leaving
> the kernel responsible for actually storing the data in a persistent
> way. This series adds a new module parameter to ccp allowing users to
> specify a path to a file for use as the PSP's NV storage. The ccp driver
> then reads the file into memory for the PSP to use and is responsible
> for writing the file whenever the PSP modifies the memory region.

What's changed between v1 and v3? Also, please wait a few days between versions.
I know us KVM people are often slow to get to reviews, but posting a new version
every day is usually counter-productive as it increases the review cost (more
threads to find and read).