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X86_FEATURE_HW_PSTATE indicates if the processor supports frequency scaling or not. Without it, the driver is unusable and thus will not load. This check also prevents the driver from loading in guests and thus not confuse users with misleading prints. Reviewed-by: Michael Kelley <mhklinux@outlook.com> Tested-by: Michael Kelley <mhklinux@outlook.com> Acked-by: Mario Limonciello (AMD) <superm1@kernel.org> Reviewed-by: K Prateek Nayak <kprateek.nayak@amd.com> Tested-by: K Prateek Nayak <kprateek.nayak@amd.com> Acked-by: Borislav Petkov (AMD) <bp@alien8.de> Signed-off-by: Rong Zhang <i@rong.moe> Link: https://lore.kernel.org/r/20260722-amd-pstate-vm-v4-1-d6607d9e9d9a@rong.moe Signed-off-by: Mario Limonciello <superm1@kernel.org>
2360 lines
62 KiB
2360 lines
62 KiB