On 6/26/2025 3:55 AM, Sean Christopherson wrote: > 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. Thanks Sean. > I'll wait for v7 to grab the others (and stating the obvious, not for 6.16). Sure will send a v7 on top of kvm-x86 changes along with the suggested changes. > [2/4] KVM: SVM: Add missing member in SNP_LAUNCH_START command structure > https://github.com/kvm-x86/linux/commit/51a4273dcab3 Regards Nikunj
