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 #endif 50 #ifdef CONFIG_HAVE_MARCH_Z14_FEATURES 51 58, /* miscellaneous-instruction-extension 2 */ 52 #endif 53 #ifdef CONFIG_HAVE_MARCH_Z15_FEATURES 54 61, /* miscellaneous-instruction-extension 3 */ 55 #endif 56 -1 /* END */ 57 } 58 }, 59 { 60 /* 61 * FACILITIES_KVM contains the list of facilities that are part 62 * of the default facility mask and list that are passed to the 63 * initial CPU model. If no CPU model is used, this, together 64 * with the non-hypervisor managed bits, is the maximum list of 65 * guest facilities supported by KVM. 66 */ 67 .name = "FACILITIES_KVM", 68 .bits = (int[]){ 69 0, /* N3 instructions */ 70 1, /* z/Arch mode installed */ 71 2, /* z/Arch mode active */ 72 3, /* DAT-enhancement */ 73 4, /* idte segment table */ 74 5, /* idte region table */ 75 6, /* ASN-and-LX reuse */ 76 7, /* stfle */ 77 8, /* enhanced-DAT 1 */ 78 9, /* sense-running-status */ 79 10, /* conditional sske */ 80 13, /* ipte-range */ 81 14, /* nonquiescing key-setting */ 82 73, /* transactional execution */ 83 75, /* access-exception-fetch/store indication */ 84 76, /* msa extension 3 */ 85 77, /* msa extension 4 */ 86 78, /* enhanced-DAT 2 */ 87 130, /* instruction-execution-protection */ 88 131, /* enhanced-SOP 2 and side-effect */ 89 139, /* multiple epoch facility */ 90 146, /* msa extension 8 */ 91 150, /* enhanced sort */ 92 151, /* deflate conversion */ 93 155, /* msa extension 9 */ 94 -1 /* END */ 95 } 96 }, 97 { 98 /* 99 * FACILITIES_KVM_CPUMODEL contains the list of facilities 100 * that can be enabled by CPU model code if the host supports 101 * it. These facilities are not passed to the guest without 102 * CPU model support. 103 */ 104 105 .name = "FACILITIES_KVM_CPUMODEL", 106 .bits = (int[]){ 107 12, /* AP Query Configuration Information */ 108 15, /* AP Facilities Test */ 109 156, /* etoken facility */ 110 165, /* nnpa facility */ 111 193, /* bear enhancement facility */ 112 194, /* rdp enhancement facility */ 113 196, /* processor activity instrumentation facility */ 114 -1 /* END */ 115 } 116 }, 117 }; 118 119 static void print_facility_list(struct facility_def *def) 120 { 121 unsigned int high, bit, dword, i; 122 unsigned long long *array; 123 124 array = calloc(1, 8); 125 if (!array) 126 exit(EXIT_FAILURE); 127 high = 0; 128 for (i = 0; def->bits[i] != -1; i++) { 129 bit = 63 - (def->bits[i] & 63); 130 dword = def->bits[i] / 64; 131 if (dword > high) { 132 array = realloc(array, (dword + 1) * 8); 133 if (!array) 134 exit(EXIT_FAILURE); 135 memset(array + high + 1, 0, (dword - high) * 8); 136 high = dword; 137 } 138 array[dword] |= 1ULL << bit; 139 } 140 printf("#define %s ", def->name); 141 for (i = 0; i <= high; i++) 142 printf("_AC(0x%016llx,UL)%c", array[i], i < high ? ',' : '\n'); 143 free(array); 144 } 145 146 static void print_facility_lists(void) 147 { 148 unsigned int i; 149 150 for (i = 0; i < sizeof(facility_defs) / sizeof(facility_defs[0]); i++) 151 print_facility_list(&facility_defs[i]); 152 } 153 154 int main(int argc, char **argv) 155 { 156 printf("#ifndef __ASM_S390_FACILITY_DEFS__\n"); 157 printf("#define __ASM_S390_FACILITY_DEFS__\n"); 158 printf("/*\n"); 159 printf(" * DO NOT MODIFY.\n"); 160 printf(" *\n"); 161 printf(" * This file was generated by %s\n", __FILE__); 162 printf(" */\n\n"); 163 printf("#include <linux/const.h>\n\n"); 164 print_facility_lists(); 165 printf("\n#endif\n"); 166 return 0; 167 } 168