net: pcnet: fix source formatting and indentation
[qemu/ar7.git] / pc-bios / s390-ccw / iplb.h
blob86abc56a90e86a8e28646f40af72f53f38cda312
1 /*
2 * QEMU S390 IPL Block
4 * Copyright 2015 IBM Corp.
5 * Author(s): Alexander Yarygin <yarygin@linux.vnet.ibm.com>
7 * This work is licensed under the terms of the GNU GPL, version 2 or (at
8 * your option) any later version. See the COPYING file in the top-level
9 * directory.
12 #ifndef IPLB_H
13 #define IPLB_H
15 struct IplBlockCcw {
16 uint8_t reserved0[85];
17 uint8_t ssid;
18 uint16_t devno;
19 uint8_t vm_flags;
20 uint8_t reserved3[3];
21 uint32_t vm_parm_len;
22 uint8_t nss_name[8];
23 uint8_t vm_parm[64];
24 uint8_t reserved4[8];
25 } __attribute__ ((packed));
26 typedef struct IplBlockCcw IplBlockCcw;
28 struct IplBlockFcp {
29 uint8_t reserved1[305 - 1];
30 uint8_t opt;
31 uint8_t reserved2[3];
32 uint16_t reserved3;
33 uint16_t devno;
34 uint8_t reserved4[4];
35 uint64_t wwpn;
36 uint64_t lun;
37 uint32_t bootprog;
38 uint8_t reserved5[12];
39 uint64_t br_lba;
40 uint32_t scp_data_len;
41 uint8_t reserved6[260];
42 uint8_t scp_data[];
43 } __attribute__ ((packed));
44 typedef struct IplBlockFcp IplBlockFcp;
46 struct IplBlockQemuScsi {
47 uint32_t lun;
48 uint16_t target;
49 uint16_t channel;
50 uint8_t reserved0[77];
51 uint8_t ssid;
52 uint16_t devno;
53 } __attribute__ ((packed));
54 typedef struct IplBlockQemuScsi IplBlockQemuScsi;
56 struct IplParameterBlock {
57 uint32_t len;
58 uint8_t reserved0[3];
59 uint8_t version;
60 uint32_t blk0_len;
61 uint8_t pbt;
62 uint8_t flags;
63 uint16_t reserved01;
64 uint8_t loadparm[8];
65 union {
66 IplBlockCcw ccw;
67 IplBlockFcp fcp;
68 IplBlockQemuScsi scsi;
70 } __attribute__ ((packed));
71 typedef struct IplParameterBlock IplParameterBlock;
73 extern IplParameterBlock iplb __attribute__((__aligned__(PAGE_SIZE)));
75 #define S390_IPL_TYPE_FCP 0x00
76 #define S390_IPL_TYPE_CCW 0x02
77 #define S390_IPL_TYPE_QEMU_SCSI 0xff
79 static inline bool store_iplb(IplParameterBlock *iplb)
81 register unsigned long addr asm("0") = (unsigned long) iplb;
82 register unsigned long rc asm("1") = 0;
84 asm volatile ("diag %0,%2,0x308\n"
85 : "+d" (addr), "+d" (rc)
86 : "d" (6)
87 : "memory", "cc");
88 return rc == 0x01;
91 #endif /* IPLB_H */