^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) #ifndef _ARCH_X86_REALMODE_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #define _ARCH_X86_REALMODE_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Flag bit definitions for use with the flags field of the trampoline header
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * in the CONFIG_X86_64 variant.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #define TH_FLAGS_SME_ACTIVE_BIT 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #define TH_FLAGS_SME_ACTIVE BIT(TH_FLAGS_SME_ACTIVE_BIT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #ifndef __ASSEMBLY__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <asm/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) /* This must match data at realmode/rm/header.S */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) struct real_mode_header {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) u32 text_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) u32 ro_end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) /* SMP trampoline */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) u32 trampoline_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) u32 trampoline_header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #ifdef CONFIG_AMD_MEM_ENCRYPT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) u32 sev_es_trampoline_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #ifdef CONFIG_X86_64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) u32 trampoline_pgd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) /* ACPI S3 wakeup */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #ifdef CONFIG_ACPI_SLEEP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) u32 wakeup_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) u32 wakeup_header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) /* APM/BIOS reboot */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) u32 machine_real_restart_asm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #ifdef CONFIG_X86_64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) u32 machine_real_restart_seg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) /* This must match data at realmode/rm/trampoline_{32,64}.S */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) struct trampoline_header {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #ifdef CONFIG_X86_32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) u32 start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) u16 gdt_pad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) u16 gdt_limit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) u32 gdt_base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) u64 start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) u64 efer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) u32 cr4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) u32 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) extern struct real_mode_header *real_mode_header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) extern unsigned char real_mode_blob_end[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) extern unsigned long initial_code;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) extern unsigned long initial_gs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) extern unsigned long initial_stack;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #ifdef CONFIG_AMD_MEM_ENCRYPT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) extern unsigned long initial_vc_handler;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) extern unsigned char real_mode_blob[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) extern unsigned char real_mode_relocs[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #ifdef CONFIG_X86_32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) extern unsigned char startup_32_smp[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) extern unsigned char boot_gdt[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) extern unsigned char secondary_startup_64[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) extern unsigned char secondary_startup_64_no_verify[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) static inline size_t real_mode_size_needed(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) if (real_mode_header)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) return 0; /* already allocated. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) return ALIGN(real_mode_blob_end - real_mode_blob, PAGE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) static inline void set_real_mode_mem(phys_addr_t mem)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) real_mode_header = (struct real_mode_header *) __va(mem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) void reserve_real_mode(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) void load_trampoline_pgtable(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) #endif /* __ASSEMBLY__ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) #endif /* _ARCH_X86_REALMODE_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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