Re: [stable-6.12 2/4] KVM: SVM: Add support to initialize SEV/SNP functionality in KVM

[Sean Christopherson <seanjc@google.com>]

On Fri, Aug 14, 2026, Jack Wang wrote:
> From: Ashish Kalra <ashish.kalra@amd.com>
> 
> commit 6f1d5a3513c2370bbd6115dd430906bc2f4bdc53 upstream.
> 
> Move platform initialization of SEV/SNP from CCP driver probe time to
> KVM module load time so that KVM can do SEV/SNP platform initialization
> explicitly if it actually wants to use SEV/SNP functionality.
> 
> Add support for KVM to explicitly call into the CCP driver at load time
> to initialize SEV/SNP. If required, this behavior can be altered with KVM
> module parameters to not do SEV/SNP platform initialization at module load
> time. Additionally, a corresponding SEV/SNP platform shutdown is invoked
> during KVM module unload time.
> 
> Continue to support SEV deferred initialization as the user may have the
> file containing SEV persistent data for SEV INIT_EX available only later
> after module load/init.
> 
> Suggested-by: Sean Christopherson <seanjc@google.com>
> Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
> Signed-off-by: Ashish Kalra <ashish.kalra@amd.com>
> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
> Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
> ---

Acked-by: Sean Christopherson <seanjc@google.com>