On Tue, 08 Apr 2025 15:02:09 +0530, Nikunj A Dadhania wrote:
> The hypervisor controls TSC value calculations for the guest. A malicious
> hypervisor can prevent the guest from progressing. The Secure TSC feature for
> SEV-SNP allows guests to securely use the RDTSC and RDTSCP instructions. This
> ensures the guest has a consistent view of time and prevents a malicious
> hypervisor from manipulating time, such as making it appear to move backward or
> advance too quickly. For more details, refer to the "Secure Nested Paging
> (SEV-SNP)" section, subsection "Secure TSC" in APM Volume 2.
>
> [...]
Applied patch 2 to kvm-x86 fixes. I'll wait for v7 to grab the others (and
stating the obvious, not for 6.16).
[2/4] KVM: SVM: Add missing member in SNP_LAUNCH_START command structure
https://github.com/kvm-x86/linux/commit/51a4273dcab3
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https://github.com/kvm-x86/kvm-unit-tests/tree/next
