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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /arch/s390/tools/gen_facilities.c
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/s390/tools/gen_facilities.c')
-rw-r--r--arch/s390/tools/gen_facilities.c168
1 files changed, 168 insertions, 0 deletions
diff --git a/arch/s390/tools/gen_facilities.c b/arch/s390/tools/gen_facilities.c
new file mode 100644
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+++ b/arch/s390/tools/gen_facilities.c
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+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Simple program to generate defines out of facility lists that use the bit
+ * numbering scheme from the Princples of Operations: most significant bit
+ * has bit number 0.
+ *
+ * Copyright IBM Corp. 2015, 2018
+ *
+ */
+
+#include <strings.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+struct facility_def {
+ char *name;
+ int *bits;
+};
+
+static struct facility_def facility_defs[] = {
+ {
+ /*
+ * FACILITIES_ALS contains the list of facilities that are
+ * required to run a kernel that is compiled e.g. with
+ * -march=<machine>.
+ */
+ .name = "FACILITIES_ALS",
+ .bits = (int[]){
+ 0, /* N3 instructions */
+ 1, /* z/Arch mode installed */
+ 18, /* long displacement facility */
+ 21, /* extended-immediate facility */
+ 25, /* store clock fast */
+ 27, /* mvcos */
+ 32, /* compare and swap and store */
+ 33, /* compare and swap and store 2 */
+ 34, /* general instructions extension */
+ 35, /* execute extensions */
+#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
+ 45, /* fast-BCR, etc. */
+#endif
+#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES
+ 49, /* misc-instruction-extensions */
+ 52, /* interlocked facility 2 */
+#endif
+#ifdef CONFIG_HAVE_MARCH_Z13_FEATURES
+ 53, /* load-and-zero-rightmost-byte, etc. */
+#endif
+#ifdef CONFIG_HAVE_MARCH_Z14_FEATURES
+ 58, /* miscellaneous-instruction-extension 2 */
+#endif
+#ifdef CONFIG_HAVE_MARCH_Z15_FEATURES
+ 61, /* miscellaneous-instruction-extension 3 */
+#endif
+ -1 /* END */
+ }
+ },
+ {
+ /*
+ * FACILITIES_KVM contains the list of facilities that are part
+ * of the default facility mask and list that are passed to the
+ * initial CPU model. If no CPU model is used, this, together
+ * with the non-hypervisor managed bits, is the maximum list of
+ * guest facilities supported by KVM.
+ */
+ .name = "FACILITIES_KVM",
+ .bits = (int[]){
+ 0, /* N3 instructions */
+ 1, /* z/Arch mode installed */
+ 2, /* z/Arch mode active */
+ 3, /* DAT-enhancement */
+ 4, /* idte segment table */
+ 5, /* idte region table */
+ 6, /* ASN-and-LX reuse */
+ 7, /* stfle */
+ 8, /* enhanced-DAT 1 */
+ 9, /* sense-running-status */
+ 10, /* conditional sske */
+ 13, /* ipte-range */
+ 14, /* nonquiescing key-setting */
+ 73, /* transactional execution */
+ 75, /* access-exception-fetch/store indication */
+ 76, /* msa extension 3 */
+ 77, /* msa extension 4 */
+ 78, /* enhanced-DAT 2 */
+ 130, /* instruction-execution-protection */
+ 131, /* enhanced-SOP 2 and side-effect */
+ 139, /* multiple epoch facility */
+ 146, /* msa extension 8 */
+ 150, /* enhanced sort */
+ 151, /* deflate conversion */
+ 155, /* msa extension 9 */
+ -1 /* END */
+ }
+ },
+ {
+ /*
+ * FACILITIES_KVM_CPUMODEL contains the list of facilities
+ * that can be enabled by CPU model code if the host supports
+ * it. These facilities are not passed to the guest without
+ * CPU model support.
+ */
+
+ .name = "FACILITIES_KVM_CPUMODEL",
+ .bits = (int[]){
+ 12, /* AP Query Configuration Information */
+ 15, /* AP Facilities Test */
+ 156, /* etoken facility */
+ 165, /* nnpa facility */
+ 193, /* bear enhancement facility */
+ 194, /* rdp enhancement facility */
+ 196, /* processor activity instrumentation facility */
+ 197, /* processor activity instrumentation extension 1 */
+ -1 /* END */
+ }
+ },
+};
+
+static void print_facility_list(struct facility_def *def)
+{
+ unsigned int high, bit, dword, i;
+ unsigned long long *array;
+
+ array = calloc(1, 8);
+ if (!array)
+ exit(EXIT_FAILURE);
+ high = 0;
+ for (i = 0; def->bits[i] != -1; i++) {
+ bit = 63 - (def->bits[i] & 63);
+ dword = def->bits[i] / 64;
+ if (dword > high) {
+ array = realloc(array, (dword + 1) * 8);
+ if (!array)
+ exit(EXIT_FAILURE);
+ memset(array + high + 1, 0, (dword - high) * 8);
+ high = dword;
+ }
+ array[dword] |= 1ULL << bit;
+ }
+ printf("#define %s ", def->name);
+ for (i = 0; i <= high; i++)
+ printf("_AC(0x%016llx,UL)%c", array[i], i < high ? ',' : '\n');
+ free(array);
+}
+
+static void print_facility_lists(void)
+{
+ unsigned int i;
+
+ for (i = 0; i < sizeof(facility_defs) / sizeof(facility_defs[0]); i++)
+ print_facility_list(&facility_defs[i]);
+}
+
+int main(int argc, char **argv)
+{
+ printf("#ifndef __ASM_S390_FACILITY_DEFS__\n");
+ printf("#define __ASM_S390_FACILITY_DEFS__\n");
+ printf("/*\n");
+ printf(" * DO NOT MODIFY.\n");
+ printf(" *\n");
+ printf(" * This file was generated by %s\n", __FILE__);
+ printf(" */\n\n");
+ printf("#include <linux/const.h>\n\n");
+ print_facility_lists();
+ printf("\n#endif\n");
+ return 0;
+}