5/26/2023 0 Comments Intel cpu idMove the two CPUIDs of cpuid_leaf CPUID_7_1_EAX to KVM-only Remove vague descriptions in the changelogs, including pronouns and Replace CPUID_7_1_EAX with CPUID_LNX_5, waiting for future new CPUIDs Remain CPUID_8000_001F_EAX in the last leaf of cpuid_leaf Put CPUID_7_1_EAX back to cpuid_leaf, considering more bits will be Including renaming function and adding comments. Address some naming-confusing problems for adding KVM-only leaves, Modify some inaccurate descriptions in the changelogs. For all of these features, there are no new VMX controls orĪdditional host enabling required for guests to use them. This patch series advertises KVM support of these CPUIDs to host Given that, moveĬPUID_7_1_EDX to be a KVM-only leaf and plus an x86_FEATURE definitionįor bits on this leaf to direct them to the KVM entry. However, CPUID_7_1_EDX is dense and none of itsīits have truly kernel usages for the moment. CPUID_7_1_EAX is an expected-dense leaf and some of itsīits have kernel usages, therefore give bits on this leaf an X86_FEATUREĭefinition in kernel. These features bits are on two CPUID leafs: CPUID_7_1_EAX andĬPUID_7_1_EDX. PREFETCHITI CPUID.(EAX=7,ECX=1):EDXĭetails can be found in recent Intel ISE (Instruction Set Latest Intel platform Granite Rapids/Sierra Forest has introduced below X86: KVM: Advertise CPUID of new Intel platform instructions to user space
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