1 #ifndef _ARCH_X86_REALMODE_H
2 #define _ARCH_X86_REALMODE_H
5 * Flag bit definitions for use with the flags field of the trampoline header
6 * in the CONFIG_X86_64 variant.
8 #define TH_FLAGS_SME_ACTIVE_BIT 0
9 #define TH_FLAGS_SME_ACTIVE BIT(TH_FLAGS_SME_ACTIVE_BIT)
13 #include <linux/types.h>
16 /* This must match data at realmode.S */
17 struct real_mode_header {
22 u32 trampoline_status;
23 u32 trampoline_header;
28 #ifdef CONFIG_ACPI_SLEEP
33 u32 machine_real_restart_asm;
35 u32 machine_real_restart_seg;
39 /* This must match data at trampoline_32/64.S */
40 struct trampoline_header {
54 extern struct real_mode_header *real_mode_header;
55 extern unsigned char real_mode_blob_end[];
57 extern unsigned long initial_code;
58 extern unsigned long initial_gs;
59 extern unsigned long initial_stack;
61 extern unsigned char real_mode_blob[];
62 extern unsigned char real_mode_relocs[];
65 extern unsigned char startup_32_smp[];
66 extern unsigned char boot_gdt[];
68 extern unsigned char secondary_startup_64[];
71 static inline size_t real_mode_size_needed(void)
74 return 0; /* already allocated. */
76 return ALIGN(real_mode_blob_end - real_mode_blob, PAGE_SIZE);
79 void set_real_mode_mem(phys_addr_t mem, size_t size);
80 void reserve_real_mode(void);
82 #endif /* __ASSEMBLY__ */
84 #endif /* _ARCH_X86_REALMODE_H */