1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* |
3 | * Simple program to generate defines out of facility lists that use the bit |
4 | * numbering scheme from the Princples of Operations: most significant bit |
5 | * has bit number 0. |
6 | * |
7 | * Copyright IBM Corp. 2015, 2018 |
8 | * |
9 | */ |
10 | |
11 | #include <strings.h> |
12 | #include <string.h> |
13 | #include <stdlib.h> |
14 | #include <stdio.h> |
15 | |
16 | struct facility_def { |
17 | char *name; |
18 | int *bits; |
19 | }; |
20 | |
21 | static struct facility_def facility_defs[] = { |
22 | { |
23 | /* |
24 | * FACILITIES_ALS contains the list of facilities that are |
25 | * required to run a kernel that is compiled e.g. with |
26 | * -march=<machine>. |
27 | */ |
28 | .name = "FACILITIES_ALS" , |
29 | .bits = (int[]){ |
30 | 0, /* N3 instructions */ |
31 | 1, /* z/Arch mode installed */ |
32 | 18, /* long displacement facility */ |
33 | 21, /* extended-immediate facility */ |
34 | 25, /* store clock fast */ |
35 | 27, /* mvcos */ |
36 | 32, /* compare and swap and store */ |
37 | 33, /* compare and swap and store 2 */ |
38 | 34, /* general instructions extension */ |
39 | 35, /* execute extensions */ |
40 | #ifdef CONFIG_HAVE_MARCH_Z196_FEATURES |
41 | 45, /* fast-BCR, etc. */ |
42 | #endif |
43 | #ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES |
44 | 49, /* misc-instruction-extensions */ |
45 | 52, /* interlocked facility 2 */ |
46 | #endif |
47 | #ifdef CONFIG_HAVE_MARCH_Z13_FEATURES |
48 | 53, /* load-and-zero-rightmost-byte, etc. */ |
49 | 129, /* vector */ |
50 | #endif |
51 | #ifdef CONFIG_HAVE_MARCH_Z14_FEATURES |
52 | 58, /* miscellaneous-instruction-extension 2 */ |
53 | #endif |
54 | #ifdef CONFIG_HAVE_MARCH_Z15_FEATURES |
55 | 61, /* miscellaneous-instruction-extension 3 */ |
56 | #endif |
57 | -1 /* END */ |
58 | } |
59 | }, |
60 | { |
61 | /* |
62 | * FACILITIES_KVM contains the list of facilities that are part |
63 | * of the default facility mask and list that are passed to the |
64 | * initial CPU model. If no CPU model is used, this, together |
65 | * with the non-hypervisor managed bits, is the maximum list of |
66 | * guest facilities supported by KVM. |
67 | */ |
68 | .name = "FACILITIES_KVM" , |
69 | .bits = (int[]){ |
70 | 0, /* N3 instructions */ |
71 | 1, /* z/Arch mode installed */ |
72 | 2, /* z/Arch mode active */ |
73 | 3, /* DAT-enhancement */ |
74 | 4, /* idte segment table */ |
75 | 5, /* idte region table */ |
76 | 6, /* ASN-and-LX reuse */ |
77 | 7, /* stfle */ |
78 | 8, /* enhanced-DAT 1 */ |
79 | 9, /* sense-running-status */ |
80 | 10, /* conditional sske */ |
81 | 13, /* ipte-range */ |
82 | 14, /* nonquiescing key-setting */ |
83 | 73, /* transactional execution */ |
84 | 75, /* access-exception-fetch/store indication */ |
85 | 76, /* msa extension 3 */ |
86 | 77, /* msa extension 4 */ |
87 | 78, /* enhanced-DAT 2 */ |
88 | 130, /* instruction-execution-protection */ |
89 | 131, /* enhanced-SOP 2 and side-effect */ |
90 | 139, /* multiple epoch facility */ |
91 | 146, /* msa extension 8 */ |
92 | 150, /* enhanced sort */ |
93 | 151, /* deflate conversion */ |
94 | 155, /* msa extension 9 */ |
95 | -1 /* END */ |
96 | } |
97 | }, |
98 | { |
99 | /* |
100 | * FACILITIES_KVM_CPUMODEL contains the list of facilities |
101 | * that can be enabled by CPU model code if the host supports |
102 | * it. These facilities are not passed to the guest without |
103 | * CPU model support. |
104 | */ |
105 | |
106 | .name = "FACILITIES_KVM_CPUMODEL" , |
107 | .bits = (int[]){ |
108 | 12, /* AP Query Configuration Information */ |
109 | 15, /* AP Facilities Test */ |
110 | 156, /* etoken facility */ |
111 | 165, /* nnpa facility */ |
112 | 193, /* bear enhancement facility */ |
113 | 194, /* rdp enhancement facility */ |
114 | 196, /* processor activity instrumentation facility */ |
115 | 197, /* processor activity instrumentation extension 1 */ |
116 | -1 /* END */ |
117 | } |
118 | }, |
119 | }; |
120 | |
121 | static void print_facility_list(struct facility_def *def) |
122 | { |
123 | unsigned int high, bit, dword, i; |
124 | unsigned long long *array; |
125 | |
126 | array = calloc(nmemb: 1, size: 8); |
127 | if (!array) |
128 | exit(EXIT_FAILURE); |
129 | high = 0; |
130 | for (i = 0; def->bits[i] != -1; i++) { |
131 | bit = 63 - (def->bits[i] & 63); |
132 | dword = def->bits[i] / 64; |
133 | if (dword > high) { |
134 | array = realloc(ptr: array, size: (dword + 1) * 8); |
135 | if (!array) |
136 | exit(EXIT_FAILURE); |
137 | memset(s: array + high + 1, c: 0, n: (dword - high) * 8); |
138 | high = dword; |
139 | } |
140 | array[dword] |= 1ULL << bit; |
141 | } |
142 | printf(format: "#define %s " , def->name); |
143 | for (i = 0; i <= high; i++) |
144 | printf(format: "_AC(0x%016llx,UL)%c" , array[i], i < high ? ',' : '\n'); |
145 | free(ptr: array); |
146 | } |
147 | |
148 | static void print_facility_lists(void) |
149 | { |
150 | unsigned int i; |
151 | |
152 | for (i = 0; i < sizeof(facility_defs) / sizeof(facility_defs[0]); i++) |
153 | print_facility_list(def: &facility_defs[i]); |
154 | } |
155 | |
156 | int main(int argc, char **argv) |
157 | { |
158 | printf(format: "#ifndef __ASM_S390_FACILITY_DEFS__\n" ); |
159 | printf(format: "#define __ASM_S390_FACILITY_DEFS__\n" ); |
160 | printf(format: "/*\n" ); |
161 | printf(format: " * DO NOT MODIFY.\n" ); |
162 | printf(format: " *\n" ); |
163 | printf(format: " * This file was generated by %s\n" , __FILE__); |
164 | printf(format: " */\n\n" ); |
165 | printf(format: "#include <linux/const.h>\n\n" ); |
166 | print_facility_lists(); |
167 | printf(format: "\n#endif\n" ); |
168 | return 0; |
169 | } |
170 | |