修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/arch/x86/include/asm/processor.h
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@@ -682,6 +682,7 @@
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 extern void load_fixmap_gdt(int);
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 extern void load_percpu_segment(int);
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 extern void cpu_init(void);
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+extern void cpu_init_secondary(void);
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 extern void cpu_init_exception_handling(void);
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 extern void cr4_init(void);
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@@ -807,9 +808,13 @@
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 #ifdef CONFIG_CPU_SUP_AMD
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 extern u16 amd_get_nb_id(int cpu);
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 extern u32 amd_get_nodes_per_socket(void);
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+extern bool cpu_has_ibpb_brtype_microcode(void);
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+extern void amd_clear_divider(void);
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 #else
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 static inline u16 amd_get_nb_id(int cpu)		{ return 0; }
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 static inline u32 amd_get_nodes_per_socket(void)	{ return 0; }
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+static inline bool cpu_has_ibpb_brtype_microcode(void)	{ return false; }
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+static inline void amd_clear_divider(void)		{ }
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 #endif
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 static inline uint32_t hypervisor_cpuid_base(const char *sig, uint32_t leaves)
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@@ -838,8 +843,9 @@
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 #define xen_set_default_idle 0
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 #endif
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-void stop_this_cpu(void *dummy);
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-void microcode_check(void);
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+void __noreturn stop_this_cpu(void *dummy);
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+void microcode_check(struct cpuinfo_x86 *prev_info);
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+void store_cpu_caps(struct cpuinfo_x86 *info);
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 enum l1tf_mitigations {
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 	L1TF_MITIGATION_OFF,
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@@ -858,4 +864,6 @@
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 	MDS_MITIGATION_VMWERV,
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 };
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+extern bool gds_ucode_mitigated(void);
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+
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 #endif /* _ASM_X86_PROCESSOR_H */