• KVM In Linux 7.0 Adds Support For Virtualizing AMD ERAPS All of the KVM virtualization feature changes were recently merged for the in-development Linux 7.0 kernel. • KVM on x86 with Linux 7.0 now supports giving the guest full ownership of the PMU hardware, support for new Intel CPU instructions, fixes, and other updates. • To the AMD SVM code for KVM in Linux 7.0 is support for virtualizing ERAPS. • Further improvements to virtualization of ERAPS is expected in a coming cycle. • ERAPS is the Enhanced Return Address Predictor Security. • AMD ERAPS is introduced on Zen 5 processors and is a security feature for ultimately allowing the guests to use the larger Return Stack Buffer (RSB) in VM contexts that is now up to 64 entries rather than being limited to 32 entries.
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