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| -rw-r--r-- | pc-bios/s390-ccw/s390-ccw.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/pc-bios/s390-ccw/s390-ccw.h b/pc-bios/s390-ccw/s390-ccw.h new file mode 100644 index 0000000000..a03dbaf015 --- /dev/null +++ b/pc-bios/s390-ccw/s390-ccw.h @@ -0,0 +1,131 @@ +/* + * S390 CCW boot loader + * + * Copyright (c) 2013 Alexander Graf <agraf@suse.de> + * + * This work is licensed under the terms of the GNU GPL, version 2 or (at + * your option) any later version. See the COPYING file in the top-level + * directory. + */ + +#ifndef S390_CCW_H +#define S390_CCW_H + +/* #define DEBUG */ + +typedef unsigned char u8; +typedef unsigned short u16; +typedef unsigned int u32; +typedef unsigned long long u64; +typedef unsigned long ulong; +typedef long size_t; +typedef int bool; +typedef unsigned char uint8_t; +typedef unsigned short uint16_t; +typedef unsigned int uint32_t; +typedef unsigned long long uint64_t; +typedef unsigned char __u8; +typedef unsigned short __u16; +typedef unsigned int __u32; +typedef unsigned long long __u64; + +#define true 1 +#define false 0 +#define PAGE_SIZE 4096 + +#ifndef EIO +#define EIO 1 +#endif +#ifndef EBUSY +#define EBUSY 2 +#endif +#ifndef NULL +#define NULL 0 +#endif + +#include "cio.h" + +/* main.c */ +void virtio_panic(const char *string); + +/* sclp-ascii.c */ +void sclp_print(const char *string); +void sclp_setup(void); + +/* virtio.c */ +unsigned long virtio_load_direct(ulong rec_list1, ulong rec_list2, + ulong subchan_id, void *load_addr); +bool virtio_is_blk(struct subchannel_id schid); +void virtio_setup_block(struct subchannel_id schid); +int virtio_read(ulong sector, void *load_addr); + +/* bootmap.c */ +int zipl_load(void); + +static inline void *memset(void *s, int c, size_t n) +{ + int i; + unsigned char *p = s; + + for (i = 0; i < n; i++) { + p[i] = c; + } + + return s; +} + +static inline void fill_hex(char *out, unsigned char val) +{ + const char hex[] = "0123456789abcdef"; + + out[0] = hex[(val >> 4) & 0xf]; + out[1] = hex[val & 0xf]; +} + +static inline void print_int(const char *desc, u64 addr) +{ + unsigned char *addr_c = (unsigned char*)&addr; + char out[] = ": 0xffffffffffffffff\n"; + unsigned int i; + + for (i = 0; i < sizeof(addr); i++) { + fill_hex(&out[4 + (i*2)], addr_c[i]); + } + + sclp_print(desc); + sclp_print(out); +} + +static inline void debug_print_int(const char *desc, u64 addr) +{ +#ifdef DEBUG + print_int(desc, addr); +#endif +} + +static inline void debug_print_addr(const char *desc, void *p) +{ +#ifdef DEBUG + debug_print_int(desc, (unsigned int)(unsigned long)p); +#endif +} + +/*********************************************** + * Hypercall functions * + ***********************************************/ + +#define KVM_S390_VIRTIO_NOTIFY 0 +#define KVM_S390_VIRTIO_RESET 1 +#define KVM_S390_VIRTIO_SET_STATUS 2 +#define KVM_S390_VIRTIO_CCW_NOTIFY 3 + +static inline void yield(void) +{ + asm volatile ("diag 0,0,0x44" + : : + : "memory", "cc"); +} + +#define SECTOR_SIZE 512 + +#endif /* S390_CCW_H */ |