8fa1696ea7
Allow for the enablement of MEF and the support for the extended epoch in SIE and VSIE for the extended guest TOD-Clock. A new interface is used for getting/setting a guest's extended TOD-Clock that uses a single ioctl invocation, KVM_S390_VM_TOD_EXT. Since the host time is a moving target that might see an epoch switch or STP sync checks we need an atomic ioctl and cannot use the exisiting two interfaces. The old method of getting and setting the guest TOD-Clock is still retained and is used when the old ioctls are called. Signed-off-by: Collin L. Walling <walling@linux.vnet.ibm.com> Reviewed-by: Janosch Frank <frankja@linux.vnet.ibm.com> Reviewed-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com> Reviewed-by: Jason J. Herne <jjherne@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
140 lines
3.4 KiB
C
140 lines
3.4 KiB
C
/*
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* Simple program to generate defines out of facility lists that use the bit
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* numbering scheme from the Princples of Operations: most significant bit
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* has bit number 0.
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*
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* Copyright IBM Corp. 2015
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*
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*/
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#include <strings.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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struct facility_def {
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char *name;
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int *bits;
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};
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static struct facility_def facility_defs[] = {
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{
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/*
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* FACILITIES_ALS contains the list of facilities that are
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* required to run a kernel that is compiled e.g. with
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* -march=<machine>.
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*/
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.name = "FACILITIES_ALS",
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.bits = (int[]){
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#ifdef CONFIG_HAVE_MARCH_Z900_FEATURES
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0, /* N3 instructions */
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1, /* z/Arch mode installed */
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#endif
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#ifdef CONFIG_HAVE_MARCH_Z990_FEATURES
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18, /* long displacement facility */
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#endif
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#ifdef CONFIG_HAVE_MARCH_Z9_109_FEATURES
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21, /* extended-immediate facility */
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25, /* store clock fast */
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#endif
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#ifdef CONFIG_HAVE_MARCH_Z10_FEATURES
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27, /* mvcos */
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32, /* compare and swap and store */
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33, /* compare and swap and store 2 */
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34, /* general extension facility */
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35, /* execute extensions */
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#endif
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#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
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45, /* fast-BCR, etc. */
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#endif
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#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES
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49, /* misc-instruction-extensions */
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52, /* interlocked facility 2 */
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#endif
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#ifdef CONFIG_HAVE_MARCH_Z13_FEATURES
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53, /* load-and-zero-rightmost-byte, etc. */
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#endif
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-1 /* END */
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}
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},
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{
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.name = "FACILITIES_KVM",
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.bits = (int[]){
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0, /* N3 instructions */
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1, /* z/Arch mode installed */
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2, /* z/Arch mode active */
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3, /* DAT-enhancement */
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4, /* idte segment table */
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5, /* idte region table */
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6, /* ASN-and-LX reuse */
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7, /* stfle */
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8, /* enhanced-DAT 1 */
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9, /* sense-running-status */
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10, /* conditional sske */
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13, /* ipte-range */
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14, /* nonquiescing key-setting */
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73, /* transactional execution */
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75, /* access-exception-fetch/store indication */
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76, /* msa extension 3 */
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77, /* msa extension 4 */
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78, /* enhanced-DAT 2 */
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130, /* instruction-execution-protection */
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131, /* enhanced-SOP 2 and side-effect */
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138, /* configuration z/architecture mode (czam) */
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139, /* multiple epoch facility */
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146, /* msa extension 8 */
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-1 /* END */
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}
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},
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};
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static void print_facility_list(struct facility_def *def)
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{
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unsigned int high, bit, dword, i;
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unsigned long long *array;
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array = calloc(1, 8);
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if (!array)
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exit(EXIT_FAILURE);
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high = 0;
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for (i = 0; def->bits[i] != -1; i++) {
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bit = 63 - (def->bits[i] & 63);
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dword = def->bits[i] / 64;
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if (dword > high) {
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array = realloc(array, (dword + 1) * 8);
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if (!array)
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exit(EXIT_FAILURE);
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memset(array + high + 1, 0, (dword - high) * 8);
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high = dword;
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}
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array[dword] |= 1ULL << bit;
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}
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printf("#define %s ", def->name);
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for (i = 0; i <= high; i++)
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printf("_AC(0x%016llx,UL)%c", array[i], i < high ? ',' : '\n');
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free(array);
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}
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static void print_facility_lists(void)
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{
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unsigned int i;
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for (i = 0; i < sizeof(facility_defs) / sizeof(facility_defs[0]); i++)
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print_facility_list(&facility_defs[i]);
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}
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int main(int argc, char **argv)
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{
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printf("#ifndef __ASM_S390_FACILITIES__\n");
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printf("#define __ASM_S390_FACILITIES__\n");
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printf("/*\n");
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printf(" * DO NOT MODIFY.\n");
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printf(" *\n");
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printf(" * This file was generated by %s\n", __FILE__);
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printf(" */\n\n");
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printf("#include <linux/const.h>\n\n");
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print_facility_lists();
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printf("\n#endif\n");
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return 0;
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}
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