xref: /linux/arch/x86/include/uapi/asm/setup_data.h (revision 79790b6818e96c58fe2bffee1b418c16e64e7b80)
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _UAPI_ASM_X86_SETUP_DATA_H
3 #define _UAPI_ASM_X86_SETUP_DATA_H
4 
5 /* setup_data/setup_indirect types */
6 #define SETUP_NONE			0
7 #define SETUP_E820_EXT			1
8 #define SETUP_DTB			2
9 #define SETUP_PCI			3
10 #define SETUP_EFI			4
11 #define SETUP_APPLE_PROPERTIES		5
12 #define SETUP_JAILHOUSE			6
13 #define SETUP_CC_BLOB			7
14 #define SETUP_IMA			8
15 #define SETUP_RNG_SEED			9
16 #define SETUP_ENUM_MAX			SETUP_RNG_SEED
17 
18 #define SETUP_INDIRECT			(1<<31)
19 #define SETUP_TYPE_MAX			(SETUP_ENUM_MAX | SETUP_INDIRECT)
20 
21 #ifndef __ASSEMBLY__
22 
23 #include <linux/types.h>
24 
25 /* extensible setup data list node */
26 struct setup_data {
27 	__u64 next;
28 	__u32 type;
29 	__u32 len;
30 	__u8 data[];
31 };
32 
33 /* extensible setup indirect data node */
34 struct setup_indirect {
35 	__u32 type;
36 	__u32 reserved;  /* Reserved, must be set to zero. */
37 	__u64 len;
38 	__u64 addr;
39 };
40 
41 /*
42  * The E820 memory region entry of the boot protocol ABI:
43  */
44 struct boot_e820_entry {
45 	__u64 addr;
46 	__u64 size;
47 	__u32 type;
48 } __attribute__((packed));
49 
50 /*
51  * The boot loader is passing platform information via this Jailhouse-specific
52  * setup data structure.
53  */
54 struct jailhouse_setup_data {
55 	struct {
56 		__u16	version;
57 		__u16	compatible_version;
58 	} __attribute__((packed)) hdr;
59 	struct {
60 		__u16	pm_timer_address;
61 		__u16	num_cpus;
62 		__u64	pci_mmconfig_base;
63 		__u32	tsc_khz;
64 		__u32	apic_khz;
65 		__u8	standard_ioapic;
66 		__u8	cpu_ids[255];
67 	} __attribute__((packed)) v1;
68 	struct {
69 		__u32	flags;
70 	} __attribute__((packed)) v2;
71 } __attribute__((packed));
72 
73 /*
74  * IMA buffer setup data information from the previous kernel during kexec
75  */
76 struct ima_setup_data {
77 	__u64 addr;
78 	__u64 size;
79 } __attribute__((packed));
80 
81 #endif /* __ASSEMBLY__ */
82 
83 #endif /* _UAPI_ASM_X86_SETUP_DATA_H */
84