linux-kernel - Re: [PATCH v3 0/9] SEV Kernel Selftests

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Message-ID: <Zw2Z3WUYjOZ1rP59@google.com>
Date: Mon, 14 Oct 2024 15:23:25 -0700
From: Sean Christopherson <seanjc@...gle.com>
To: "Pratik R. Sampat" <pratikrajesh.sampat@....com>
Cc: kvm@...r.kernel.org, pbonzini@...hat.com, pgonda@...gle.com, 
	thomas.lendacky@....com, michael.roth@....com, shuah@...nel.org, 
	linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/9] SEV Kernel Selftests

On Thu, Sep 05, 2024, Pratik R. Sampat wrote:
> This series primarily introduces SEV-SNP test for the kernel selftest
> framework. It tests boot, ioctl, pre fault, and fallocate in various
> combinations to exercise both positive and negative launch flow paths.
> 
> Patch 1 - Adds a wrapper for the ioctl calls that decouple ioctl and
> asserts, which enables the use of negative test cases. No functional
> change intended.
> Patch 2 - Extend the sev smoke tests to use the SNP specific ioctl
> calls and sets up memory to boot a SNP guest VM
> Patch 3 - Adds SNP to shutdown testing
> Patch 4, 5 - Tests the ioctl path for SEV, SEV-ES and SNP
> Patch 6 - Adds support for SNP in KVM_SEV_INIT2 tests
> Patch 7,8,9 - Enable Prefault tests for SEV, SEV-ES and SNP

There are three separate series here:

 1. Smoke test support for SNP
 2. Negative tests for SEV+
 3. Prefault tests for SEV+

#3 likely has a dependency on #1, and probably on #2 as well (for style if nothing
else).  But that's really just an argument for focuing on #1 first, and the moving
onto the others once that's ready to go.