linux-kernel - Re: [PATCH V3 0/4] Add SEV_INIT

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Date:   Tue, 2 Nov 2021 16:05:51 +0000
From:   Sean Christopherson <seanjc@...gle.com>
To:     Peter Gonda <pgonda@...gle.com>
Cc:     thomas.lendacky@....com, Marc Orr <marcorr@...gle.com>,
        David Rientjes <rientjes@...gle.com>,
        Brijesh Singh <brijesh.singh@....com>,
        Joerg Roedel <jroedel@...e.de>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        John Allen <john.allen@....com>,
        "David S. Miller" <davem@...emloft.net>,
        Paolo Bonzini <pbonzini@...hat.com>,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V3 0/4] Add SEV_INIT_EX support

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).