root/arch/x86/include/uapi/asm/setup_data.h
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_ASM_X86_SETUP_DATA_H
#define _UAPI_ASM_X86_SETUP_DATA_H

/* setup_data/setup_indirect types */
#define SETUP_NONE                      0
#define SETUP_E820_EXT                  1
#define SETUP_DTB                       2
#define SETUP_PCI                       3
#define SETUP_EFI                       4
#define SETUP_APPLE_PROPERTIES          5
#define SETUP_JAILHOUSE                 6
#define SETUP_CC_BLOB                   7
#define SETUP_IMA                       8
#define SETUP_RNG_SEED                  9
#define SETUP_KEXEC_KHO                 10
#define SETUP_ENUM_MAX                  SETUP_KEXEC_KHO

#define SETUP_INDIRECT                  (1<<31)
#define SETUP_TYPE_MAX                  (SETUP_ENUM_MAX | SETUP_INDIRECT)

#ifndef __ASSEMBLER__

#include <linux/types.h>

/* extensible setup data list node */
struct setup_data {
        __u64 next;
        __u32 type;
        __u32 len;
        __u8 data[];
};

/* extensible setup indirect data node */
struct setup_indirect {
        __u32 type;
        __u32 reserved;  /* Reserved, must be set to zero. */
        __u64 len;
        __u64 addr;
};

/*
 * The E820 memory region entry of the boot protocol ABI:
 */
struct boot_e820_entry {
        __u64 addr;
        __u64 size;
        __u32 type;
} __attribute__((packed));

/*
 * The boot loader is passing platform information via this Jailhouse-specific
 * setup data structure.
 */
struct jailhouse_setup_data {
        struct {
                __u16   version;
                __u16   compatible_version;
        } __attribute__((packed)) hdr;
        struct {
                __u16   pm_timer_address;
                __u16   num_cpus;
                __u64   pci_mmconfig_base;
                __u32   tsc_khz;
                __u32   apic_khz;
                __u8    standard_ioapic;
                __u8    cpu_ids[255];
        } __attribute__((packed)) v1;
        struct {
                __u32   flags;
        } __attribute__((packed)) v2;
} __attribute__((packed));

/*
 * IMA buffer setup data information from the previous kernel during kexec
 */
struct ima_setup_data {
        __u64 addr;
        __u64 size;
} __attribute__((packed));

/*
 * Locations of kexec handover metadata
 */
struct kho_data {
        __u64 fdt_addr;
        __u64 fdt_size;
        __u64 scratch_addr;
        __u64 scratch_size;
} __attribute__((packed));

#endif /* __ASSEMBLER__ */

#endif /* _UAPI_ASM_X86_SETUP_DATA_H */