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 long ulong;
23 typedef unsigned char uint8_t;
24 typedef unsigned short uint16_t;
25 typedef unsigned int uint32_t;
26 typedef unsigned long long uint64_t;
27 typedef unsigned char __u8;
28 typedef unsigned short __u16;
29 typedef unsigned int __u32;
30 typedef unsigned long long __u64;
34 #define PAGE_SIZE 4096
49 void disabled_wait(void);
50 void consume_sclp_int(void);
53 void virtio_panic(const char *string);
54 void write_subsystem_identification(void);
55 extern char stack[PAGE_SIZE * 8] __attribute__((__aligned__(PAGE_SIZE)));
56 extern char ring_area[PAGE_SIZE * 8] __attribute__((__aligned__(PAGE_SIZE)));
57 extern uint64_t boot_value;
60 void sclp_print(const char *string);
61 void sclp_setup(void);
64 unsigned long virtio_load_direct(ulong rec_list1, ulong rec_list2,
65 ulong subchan_id, void *load_addr);
66 bool virtio_is_blk(struct subchannel_id schid);
67 void virtio_setup_block(struct subchannel_id schid);
68 int virtio_read(ulong sector, void *load_addr);
69 int enable_mss_facility(void);
74 static inline void *memset(void *s, int c, size_t n)
79 for (i = 0; i < n; i++) {
86 static inline void fill_hex(char *out, unsigned char val)
88 const char hex[] = "0123456789abcdef";
90 out[0] = hex[(val >> 4) & 0xf];
91 out[1] = hex[val & 0xf];
94 static inline void fill_hex_val(char *out, void *ptr, unsigned size)
96 unsigned char *value = ptr;
99 for (i = 0; i < size; i++) {
100 fill_hex(&out[i*2], value[i]);
104 static inline void print_int(const char *desc, u64 addr)
106 char out[] = ": 0xffffffffffffffff\n";
108 fill_hex_val(&out[4], &addr, sizeof(addr));
114 static inline void debug_print_int(const char *desc, u64 addr)
117 print_int(desc, addr);
121 static inline void debug_print_addr(const char *desc, void *p)
124 debug_print_int(desc, (unsigned int)(unsigned long)p);
128 /***********************************************
129 * Hypercall functions *
130 ***********************************************/
132 #define KVM_S390_VIRTIO_NOTIFY 0
133 #define KVM_S390_VIRTIO_RESET 1
134 #define KVM_S390_VIRTIO_SET_STATUS 2
135 #define KVM_S390_VIRTIO_CCW_NOTIFY 3
137 static inline void yield(void)
139 asm volatile ("diag 0,0,0x44"
144 #define MAX_SECTOR_SIZE 4096
146 #endif /* S390_CCW_H */