On 7/30/2021 12:05 AM, Dave Hansen wrote:
On 7/29/21 8:02 AM, Tianyu Lan wrote:There is x86_hyper_type to identify hypervisor type and we may check this variable after checking X86_FEATURE_HYPERVISOR. static inline bool hv_is_isolation_supported(void) { if (!cpu_feature_enabled(X86_FEATURE_HYPERVISOR)) return 0; if (x86_hyper_type != X86_HYPER_MS_HYPERV) return 0; // out of line function call: return __hv_is_isolation_supported(); }Looks fine. You just might want to use this existing helper: static inline bool hypervisor_is_type(enum x86_hypervisor_type type) { return x86_hyper_type == type; }
Yes,thanks for suggestion and will update in the next version.
