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-rw-r--r--include/asm-x86/Kbuild3
-rw-r--r--include/asm-x86/bootparam.h108
-rw-r--r--include/asm-x86/e820.h28
-rw-r--r--include/asm-x86/e820_32.h21
-rw-r--r--include/asm-x86/e820_64.h20
-rw-r--r--include/asm-x86/ist.h12
-rw-r--r--include/asm-x86/lguest.h86
-rw-r--r--include/asm-x86/lguest_hcall.h71
8 files changed, 248 insertions, 101 deletions
diff --git a/include/asm-x86/Kbuild b/include/asm-x86/Kbuild
index 559830ece755..5e3539c129b9 100644
--- a/include/asm-x86/Kbuild
+++ b/include/asm-x86/Kbuild
@@ -1,6 +1,7 @@
1include include/asm-generic/Kbuild.asm 1include include/asm-generic/Kbuild.asm
2 2
3header-y += boot.h 3header-y += boot.h
4header-y += bootparam.h
4header-y += debugreg.h 5header-y += debugreg.h
5header-y += ldt.h 6header-y += ldt.h
6header-y += msr-index.h 7header-y += msr-index.h
@@ -14,8 +15,10 @@ unifdef-y += a.out_32.h
14unifdef-y += a.out_64.h 15unifdef-y += a.out_64.h
15unifdef-y += byteorder_32.h 16unifdef-y += byteorder_32.h
16unifdef-y += byteorder_64.h 17unifdef-y += byteorder_64.h
18unifdef-y += e820.h
17unifdef-y += elf_32.h 19unifdef-y += elf_32.h
18unifdef-y += elf_64.h 20unifdef-y += elf_64.h
21unifdef-y += ist.h
19unifdef-y += mce.h 22unifdef-y += mce.h
20unifdef-y += msgbuf_32.h 23unifdef-y += msgbuf_32.h
21unifdef-y += msgbuf_64.h 24unifdef-y += msgbuf_64.h
diff --git a/include/asm-x86/bootparam.h b/include/asm-x86/bootparam.h
index dc031cf44633..19f3ddf2df4b 100644
--- a/include/asm-x86/bootparam.h
+++ b/include/asm-x86/bootparam.h
@@ -10,85 +10,85 @@
10#include <video/edid.h> 10#include <video/edid.h>
11 11
12struct setup_header { 12struct setup_header {
13 u8 setup_sects; 13 __u8 setup_sects;
14 u16 root_flags; 14 __u16 root_flags;
15 u32 syssize; 15 __u32 syssize;
16 u16 ram_size; 16 __u16 ram_size;
17#define RAMDISK_IMAGE_START_MASK 0x07FF 17#define RAMDISK_IMAGE_START_MASK 0x07FF
18#define RAMDISK_PROMPT_FLAG 0x8000 18#define RAMDISK_PROMPT_FLAG 0x8000
19#define RAMDISK_LOAD_FLAG 0x4000 19#define RAMDISK_LOAD_FLAG 0x4000
20 u16 vid_mode; 20 __u16 vid_mode;
21 u16 root_dev; 21 __u16 root_dev;
22 u16 boot_flag; 22 __u16 boot_flag;
23 u16 jump; 23 __u16 jump;
24 u32 header; 24 __u32 header;
25 u16 version; 25 __u16 version;
26 u32 realmode_swtch; 26 __u32 realmode_swtch;
27 u16 start_sys; 27 __u16 start_sys;
28 u16 kernel_version; 28 __u16 kernel_version;
29 u8 type_of_loader; 29 __u8 type_of_loader;
30 u8 loadflags; 30 __u8 loadflags;
31#define LOADED_HIGH (1<<0) 31#define LOADED_HIGH (1<<0)
32#define KEEP_SEGMENTS (1<<6) 32#define KEEP_SEGMENTS (1<<6)
33#define CAN_USE_HEAP (1<<7) 33#define CAN_USE_HEAP (1<<7)
34 u16 setup_move_size; 34 __u16 setup_move_size;
35 u32 code32_start; 35 __u32 code32_start;
36 u32 ramdisk_image; 36 __u32 ramdisk_image;
37 u32 ramdisk_size; 37 __u32 ramdisk_size;
38 u32 bootsect_kludge; 38 __u32 bootsect_kludge;
39 u16 heap_end_ptr; 39 __u16 heap_end_ptr;
40 u16 _pad1; 40 __u16 _pad1;
41 u32 cmd_line_ptr; 41 __u32 cmd_line_ptr;
42 u32 initrd_addr_max; 42 __u32 initrd_addr_max;
43 u32 kernel_alignment; 43 __u32 kernel_alignment;
44 u8 relocatable_kernel; 44 __u8 relocatable_kernel;
45 u8 _pad2[3]; 45 __u8 _pad2[3];
46 u32 cmdline_size; 46 __u32 cmdline_size;
47 u32 hardware_subarch; 47 __u32 hardware_subarch;
48 u64 hardware_subarch_data; 48 __u64 hardware_subarch_data;
49} __attribute__((packed)); 49} __attribute__((packed));
50 50
51struct sys_desc_table { 51struct sys_desc_table {
52 u16 length; 52 __u16 length;
53 u8 table[14]; 53 __u8 table[14];
54}; 54};
55 55
56struct efi_info { 56struct efi_info {
57 u32 _pad1; 57 __u32 _pad1;
58 u32 efi_systab; 58 __u32 efi_systab;
59 u32 efi_memdesc_size; 59 __u32 efi_memdesc_size;
60 u32 efi_memdesc_version; 60 __u32 efi_memdesc_version;
61 u32 efi_memmap; 61 __u32 efi_memmap;
62 u32 efi_memmap_size; 62 __u32 efi_memmap_size;
63 u32 _pad2[2]; 63 __u32 _pad2[2];
64}; 64};
65 65
66/* The so-called "zeropage" */ 66/* The so-called "zeropage" */
67struct boot_params { 67struct boot_params {
68 struct screen_info screen_info; /* 0x000 */ 68 struct screen_info screen_info; /* 0x000 */
69 struct apm_bios_info apm_bios_info; /* 0x040 */ 69 struct apm_bios_info apm_bios_info; /* 0x040 */
70 u8 _pad2[12]; /* 0x054 */ 70 __u8 _pad2[12]; /* 0x054 */
71 struct ist_info ist_info; /* 0x060 */ 71 struct ist_info ist_info; /* 0x060 */
72 u8 _pad3[16]; /* 0x070 */ 72 __u8 _pad3[16]; /* 0x070 */
73 u8 hd0_info[16]; /* obsolete! */ /* 0x080 */ 73 __u8 hd0_info[16]; /* obsolete! */ /* 0x080 */
74 u8 hd1_info[16]; /* obsolete! */ /* 0x090 */ 74 __u8 hd1_info[16]; /* obsolete! */ /* 0x090 */
75 struct sys_desc_table sys_desc_table; /* 0x0a0 */ 75 struct sys_desc_table sys_desc_table; /* 0x0a0 */
76 u8 _pad4[144]; /* 0x0b0 */ 76 __u8 _pad4[144]; /* 0x0b0 */
77 struct edid_info edid_info; /* 0x140 */ 77 struct edid_info edid_info; /* 0x140 */
78 struct efi_info efi_info; /* 0x1c0 */ 78 struct efi_info efi_info; /* 0x1c0 */
79 u32 alt_mem_k; /* 0x1e0 */ 79 __u32 alt_mem_k; /* 0x1e0 */
80 u32 scratch; /* Scratch field! */ /* 0x1e4 */ 80 __u32 scratch; /* Scratch field! */ /* 0x1e4 */
81 u8 e820_entries; /* 0x1e8 */ 81 __u8 e820_entries; /* 0x1e8 */
82 u8 eddbuf_entries; /* 0x1e9 */ 82 __u8 eddbuf_entries; /* 0x1e9 */
83 u8 edd_mbr_sig_buf_entries; /* 0x1ea */ 83 __u8 edd_mbr_sig_buf_entries; /* 0x1ea */
84 u8 _pad6[6]; /* 0x1eb */ 84 __u8 _pad6[6]; /* 0x1eb */
85 struct setup_header hdr; /* setup header */ /* 0x1f1 */ 85 struct setup_header hdr; /* setup header */ /* 0x1f1 */
86 u8 _pad7[0x290-0x1f1-sizeof(struct setup_header)]; 86 __u8 _pad7[0x290-0x1f1-sizeof(struct setup_header)];
87 u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX]; /* 0x290 */ 87 __u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX]; /* 0x290 */
88 struct e820entry e820_map[E820MAX]; /* 0x2d0 */ 88 struct e820entry e820_map[E820MAX]; /* 0x2d0 */
89 u8 _pad8[48]; /* 0xcd0 */ 89 __u8 _pad8[48]; /* 0xcd0 */
90 struct edd_info eddbuf[EDDMAXNR]; /* 0xd00 */ 90 struct edd_info eddbuf[EDDMAXNR]; /* 0xd00 */
91 u8 _pad9[276]; /* 0xeec */ 91 __u8 _pad9[276]; /* 0xeec */
92} __attribute__((packed)); 92} __attribute__((packed));
93 93
94#endif /* _ASM_BOOTPARAM_H */ 94#endif /* _ASM_BOOTPARAM_H */
diff --git a/include/asm-x86/e820.h b/include/asm-x86/e820.h
index 5d4d2183e5db..3e214f39fad3 100644
--- a/include/asm-x86/e820.h
+++ b/include/asm-x86/e820.h
@@ -1,5 +1,33 @@
1#ifndef __ASM_E820_H
2#define __ASM_E820_H
3#define E820MAP 0x2d0 /* our map */
4#define E820MAX 128 /* number of entries in E820MAP */
5#define E820NR 0x1e8 /* # entries in E820MAP */
6
7#define E820_RAM 1
8#define E820_RESERVED 2
9#define E820_ACPI 3
10#define E820_NVS 4
11
12#ifndef __ASSEMBLY__
13struct e820entry {
14 __u64 addr; /* start of memory segment */
15 __u64 size; /* size of memory segment */
16 __u32 type; /* type of memory segment */
17} __attribute__((packed));
18
19struct e820map {
20 __u32 nr_map;
21 struct e820entry map[E820MAX];
22};
23#endif /* __ASSEMBLY__ */
24
25#ifdef __KERNEL__
1#ifdef CONFIG_X86_32 26#ifdef CONFIG_X86_32
2# include "e820_32.h" 27# include "e820_32.h"
3#else 28#else
4# include "e820_64.h" 29# include "e820_64.h"
5#endif 30#endif
31#endif /* __KERNEL__ */
32
33#endif /* __ASM_E820_H */
diff --git a/include/asm-x86/e820_32.h b/include/asm-x86/e820_32.h
index cf67dbb1db79..03f60c690c8a 100644
--- a/include/asm-x86/e820_32.h
+++ b/include/asm-x86/e820_32.h
@@ -12,30 +12,10 @@
12#ifndef __E820_HEADER 12#ifndef __E820_HEADER
13#define __E820_HEADER 13#define __E820_HEADER
14 14
15#define E820MAP 0x2d0 /* our map */
16#define E820MAX 128 /* number of entries in E820MAP */
17#define E820NR 0x1e8 /* # entries in E820MAP */
18
19#define E820_RAM 1
20#define E820_RESERVED 2
21#define E820_ACPI 3
22#define E820_NVS 4
23
24#define HIGH_MEMORY (1024*1024) 15#define HIGH_MEMORY (1024*1024)
25 16
26#ifndef __ASSEMBLY__ 17#ifndef __ASSEMBLY__
27 18
28struct e820entry {
29 u64 addr; /* start of memory segment */
30 u64 size; /* size of memory segment */
31 u32 type; /* type of memory segment */
32} __attribute__((packed));
33
34struct e820map {
35 u32 nr_map;
36 struct e820entry map[E820MAX];
37};
38
39extern struct e820map e820; 19extern struct e820map e820;
40 20
41extern int e820_all_mapped(unsigned long start, unsigned long end, 21extern int e820_all_mapped(unsigned long start, unsigned long end,
@@ -56,5 +36,4 @@ static inline void e820_mark_nosave_regions(void)
56#endif 36#endif
57 37
58#endif/*!__ASSEMBLY__*/ 38#endif/*!__ASSEMBLY__*/
59
60#endif/*__E820_HEADER*/ 39#endif/*__E820_HEADER*/
diff --git a/include/asm-x86/e820_64.h b/include/asm-x86/e820_64.h
index 3486e701bd86..0bd4787a5d57 100644
--- a/include/asm-x86/e820_64.h
+++ b/include/asm-x86/e820_64.h
@@ -11,27 +11,7 @@
11#ifndef __E820_HEADER 11#ifndef __E820_HEADER
12#define __E820_HEADER 12#define __E820_HEADER
13 13
14#define E820MAP 0x2d0 /* our map */
15#define E820MAX 128 /* number of entries in E820MAP */
16#define E820NR 0x1e8 /* # entries in E820MAP */
17
18#define E820_RAM 1
19#define E820_RESERVED 2
20#define E820_ACPI 3
21#define E820_NVS 4
22
23#ifndef __ASSEMBLY__ 14#ifndef __ASSEMBLY__
24struct e820entry {
25 u64 addr; /* start of memory segment */
26 u64 size; /* size of memory segment */
27 u32 type; /* type of memory segment */
28} __attribute__((packed));
29
30struct e820map {
31 u32 nr_map;
32 struct e820entry map[E820MAX];
33};
34
35extern unsigned long find_e820_area(unsigned long start, unsigned long end, 15extern unsigned long find_e820_area(unsigned long start, unsigned long end,
36 unsigned size); 16 unsigned size);
37extern void add_memory_region(unsigned long start, unsigned long size, 17extern void add_memory_region(unsigned long start, unsigned long size,
diff --git a/include/asm-x86/ist.h b/include/asm-x86/ist.h
index ef2003ebc6f9..6ec6ceed95a7 100644
--- a/include/asm-x86/ist.h
+++ b/include/asm-x86/ist.h
@@ -17,17 +17,17 @@
17 */ 17 */
18 18
19 19
20#ifdef __KERNEL__
21
22#include <linux/types.h> 20#include <linux/types.h>
23 21
24struct ist_info { 22struct ist_info {
25 u32 signature; 23 __u32 signature;
26 u32 command; 24 __u32 command;
27 u32 event; 25 __u32 event;
28 u32 perf_level; 26 __u32 perf_level;
29}; 27};
30 28
29#ifdef __KERNEL__
30
31extern struct ist_info ist_info; 31extern struct ist_info ist_info;
32 32
33#endif /* __KERNEL__ */ 33#endif /* __KERNEL__ */
diff --git a/include/asm-x86/lguest.h b/include/asm-x86/lguest.h
new file mode 100644
index 000000000000..ccd338460811
--- /dev/null
+++ b/include/asm-x86/lguest.h
@@ -0,0 +1,86 @@
1#ifndef _X86_LGUEST_H
2#define _X86_LGUEST_H
3
4#define GDT_ENTRY_LGUEST_CS 10
5#define GDT_ENTRY_LGUEST_DS 11
6#define LGUEST_CS (GDT_ENTRY_LGUEST_CS * 8)
7#define LGUEST_DS (GDT_ENTRY_LGUEST_DS * 8)
8
9#ifndef __ASSEMBLY__
10#include <asm/desc.h>
11
12#define GUEST_PL 1
13
14/* Every guest maps the core switcher code. */
15#define SHARED_SWITCHER_PAGES \
16 DIV_ROUND_UP(end_switcher_text - start_switcher_text, PAGE_SIZE)
17/* Pages for switcher itself, then two pages per cpu */
18#define TOTAL_SWITCHER_PAGES (SHARED_SWITCHER_PAGES + 2 * NR_CPUS)
19
20/* We map at -4M for ease of mapping into the guest (one PTE page). */
21#define SWITCHER_ADDR 0xFFC00000
22
23/* Found in switcher.S */
24extern unsigned long default_idt_entries[];
25
26struct lguest_regs
27{
28 /* Manually saved part. */
29 unsigned long eax, ebx, ecx, edx;
30 unsigned long esi, edi, ebp;
31 unsigned long gs;
32 unsigned long fs, ds, es;
33 unsigned long trapnum, errcode;
34 /* Trap pushed part */
35 unsigned long eip;
36 unsigned long cs;
37 unsigned long eflags;
38 unsigned long esp;
39 unsigned long ss;
40};
41
42/* This is a guest-specific page (mapped ro) into the guest. */
43struct lguest_ro_state
44{
45 /* Host information we need to restore when we switch back. */
46 u32 host_cr3;
47 struct Xgt_desc_struct host_idt_desc;
48 struct Xgt_desc_struct host_gdt_desc;
49 u32 host_sp;
50
51 /* Fields which are used when guest is running. */
52 struct Xgt_desc_struct guest_idt_desc;
53 struct Xgt_desc_struct guest_gdt_desc;
54 struct i386_hw_tss guest_tss;
55 struct desc_struct guest_idt[IDT_ENTRIES];
56 struct desc_struct guest_gdt[GDT_ENTRIES];
57};
58
59struct lguest_arch
60{
61 /* The GDT entries copied into lguest_ro_state when running. */
62 struct desc_struct gdt[GDT_ENTRIES];
63
64 /* The IDT entries: some copied into lguest_ro_state when running. */
65 struct desc_struct idt[IDT_ENTRIES];
66
67 /* The address of the last guest-visible pagefault (ie. cr2). */
68 unsigned long last_pagefault;
69};
70
71static inline void lguest_set_ts(void)
72{
73 u32 cr0;
74
75 cr0 = read_cr0();
76 if (!(cr0 & 8))
77 write_cr0(cr0|8);
78}
79
80/* Full 4G segment descriptors, suitable for CS and DS. */
81#define FULL_EXEC_SEGMENT ((struct desc_struct){0x0000ffff, 0x00cf9b00})
82#define FULL_SEGMENT ((struct desc_struct){0x0000ffff, 0x00cf9300})
83
84#endif /* __ASSEMBLY__ */
85
86#endif
diff --git a/include/asm-x86/lguest_hcall.h b/include/asm-x86/lguest_hcall.h
new file mode 100644
index 000000000000..f948491eb56a
--- /dev/null
+++ b/include/asm-x86/lguest_hcall.h
@@ -0,0 +1,71 @@
1/* Architecture specific portion of the lguest hypercalls */
2#ifndef _X86_LGUEST_HCALL_H
3#define _X86_LGUEST_HCALL_H
4
5#define LHCALL_FLUSH_ASYNC 0
6#define LHCALL_LGUEST_INIT 1
7#define LHCALL_CRASH 2
8#define LHCALL_LOAD_GDT 3
9#define LHCALL_NEW_PGTABLE 4
10#define LHCALL_FLUSH_TLB 5
11#define LHCALL_LOAD_IDT_ENTRY 6
12#define LHCALL_SET_STACK 7
13#define LHCALL_TS 8
14#define LHCALL_SET_CLOCKEVENT 9
15#define LHCALL_HALT 10
16#define LHCALL_SET_PTE 14
17#define LHCALL_SET_PMD 15
18#define LHCALL_LOAD_TLS 16
19#define LHCALL_NOTIFY 17
20
21/*G:031 First, how does our Guest contact the Host to ask for privileged
22 * operations? There are two ways: the direct way is to make a "hypercall",
23 * to make requests of the Host Itself.
24 *
25 * Our hypercall mechanism uses the highest unused trap code (traps 32 and
26 * above are used by real hardware interrupts). Seventeen hypercalls are
27 * available: the hypercall number is put in the %eax register, and the
28 * arguments (when required) are placed in %edx, %ebx and %ecx. If a return
29 * value makes sense, it's returned in %eax.
30 *
31 * Grossly invalid calls result in Sudden Death at the hands of the vengeful
32 * Host, rather than returning failure. This reflects Winston Churchill's
33 * definition of a gentleman: "someone who is only rude intentionally". */
34#define LGUEST_TRAP_ENTRY 0x1F
35
36#ifndef __ASSEMBLY__
37#include <asm/hw_irq.h>
38
39static inline unsigned long
40hcall(unsigned long call,
41 unsigned long arg1, unsigned long arg2, unsigned long arg3)
42{
43 /* "int" is the Intel instruction to trigger a trap. */
44 asm volatile("int $" __stringify(LGUEST_TRAP_ENTRY)
45 /* The call is in %eax (aka "a"), and can be replaced */
46 : "=a"(call)
47 /* The other arguments are in %eax, %edx, %ebx & %ecx */
48 : "a"(call), "d"(arg1), "b"(arg2), "c"(arg3)
49 /* "memory" means this might write somewhere in memory.
50 * This isn't true for all calls, but it's safe to tell
51 * gcc that it might happen so it doesn't get clever. */
52 : "memory");
53 return call;
54}
55/*:*/
56
57void async_hcall(unsigned long call,
58 unsigned long arg1, unsigned long arg2, unsigned long arg3);
59
60/* Can't use our min() macro here: needs to be a constant */
61#define LGUEST_IRQS (NR_IRQS < 32 ? NR_IRQS: 32)
62
63#define LHCALL_RING_SIZE 64
64struct hcall_args
65{
66 /* These map directly onto eax, ebx, ecx, edx in struct lguest_regs */
67 unsigned long arg0, arg2, arg3, arg1;
68};
69
70#endif /* !__ASSEMBLY__ */
71#endif /* _I386_LGUEST_HCALL_H */
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-25 13:42:26 -0500