4 * Copyright (c) 2013 Alexander Graf <agraf@suse.de>
6 * This work is licensed under the terms of the GNU GPL, version 2 or (at
7 * your option) any later version. See the COPYING file in the top-level
16 typedef unsigned char u8;
17 typedef unsigned short u16;
18 typedef unsigned int u32;
19 typedef unsigned long long u64;
20 typedef unsigned char __u8;
21 typedef unsigned short __u16;
22 typedef unsigned int __u32;
23 typedef unsigned long long __u64;
27 #define PAGE_SIZE 4096
37 #define MIN(a, b) (((a) < (b)) ? (a) : (b))
40 #define MIN_NON_ZERO(a, b) ((a) == 0 ? (b) : \
41 ((b) == 0 ? (a) : (MIN(a, b))))
44 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
50 void disabled_wait(void) __attribute__ ((__noreturn__));
51 void consume_sclp_int(void);
52 void consume_io_int(void);
55 void write_subsystem_identification(void);
56 void write_iplb_location(void);
57 extern char stack[PAGE_SIZE * 8] __attribute__((__aligned__(PAGE_SIZE)));
58 unsigned int get_loadparm_index(void);
62 void sclp_print(const char *string);
63 void sclp_set_write_mask(uint32_t receive_mask, uint32_t send_mask);
64 void sclp_setup(void);
65 void sclp_get_loadparm_ascii(char *loadparm);
66 int sclp_read(char *str, size_t count);
69 unsigned long virtio_load_direct(unsigned long rec_list1, unsigned long rec_list2,
70 unsigned long subchan_id, void *load_addr);
71 bool virtio_is_supported(SubChannelId schid);
72 int virtio_blk_setup_device(SubChannelId schid);
73 int virtio_read(unsigned long sector, void *load_addr);
79 void write_reset_psw(uint64_t psw);
80 void jump_to_IPL_code(uint64_t address);
81 void jump_to_low_kernel(void);
84 void menu_set_parms(uint8_t boot_menu_flag, uint32_t boot_menu_timeout);
85 int menu_get_zipl_boot_index(const char *menu_data);
86 bool menu_is_enabled_zipl(void);
87 int menu_get_enum_boot_index(bool *valid_entries);
88 bool menu_is_enabled_enum(void);
90 #define MAX_BOOT_ENTRIES 31
92 __attribute__ ((__noreturn__))
93 static inline void panic(const char *string)
99 static inline void fill_hex(char *out, unsigned char val)
101 const char hex[] = "0123456789abcdef";
103 out[0] = hex[(val >> 4) & 0xf];
104 out[1] = hex[val & 0xf];
107 static inline void fill_hex_val(char *out, void *ptr, unsigned size)
109 unsigned char *value = ptr;
112 for (i = 0; i < size; i++) {
113 fill_hex(&out[i*2], value[i]);
117 static inline void print_int(const char *desc, u64 addr)
119 char out[] = ": 0xffffffffffffffff\n";
121 fill_hex_val(&out[4], &addr, sizeof(addr));
127 static inline void debug_print_int(const char *desc, u64 addr)
130 print_int(desc, addr);
134 static inline void debug_print_addr(const char *desc, void *p)
137 debug_print_int(desc, (unsigned int)(unsigned long)p);
141 /***********************************************
142 * Hypercall functions *
143 ***********************************************/
145 #define KVM_S390_VIRTIO_NOTIFY 0
146 #define KVM_S390_VIRTIO_RESET 1
147 #define KVM_S390_VIRTIO_SET_STATUS 2
148 #define KVM_S390_VIRTIO_CCW_NOTIFY 3
150 #define MAX_SECTOR_SIZE 4096
152 static inline void IPL_assert(bool term, const char *message)
157 panic(" !\n"); /* no return */
161 static inline void IPL_check(bool term, const char *message)
164 sclp_print("\n! WARNING: ");
170 extern const unsigned char ebc2asc[256];
171 static inline void ebcdic_to_ascii(const char *src,
177 for (i = 0; i < size; i++) {
183 #endif /* S390_CCW_H */