motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-04 16:23:55 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

s390x/cpumodel: default enable mepoch for z14 and later

Browse source 
Latest systems and host kernels support mepoch, which is a
feature that was meant to be supported for z14 GA1 from the
get-go. Let's copy it to the z14 GA1 default CPU model.

Machines s390-ccw-virtio-3.1 and older will retain the old CPU
models and will not provide this bit nor the extended PTFF
functions in the default model.

Signed-off-by: Collin Walling <walling@linux.ibm.com>
Message-Id: <20190212011657.18324-2-walling@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
Collin Walling 2019-02-11 20:16:56 -05:00 • committed by Cornelia Huck
parent ddf5d18af3
commit 84176c7906
4 changed files with 30 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

24
target/s390x/cpu_models.c
View file

@ -117,6 +117,30 @@ void s390_cpudef_featoff_greater(uint8_t gen, uint8_t ec_ga, S390Feat feat)
}
}
void s390_cpudef_group_featoff_greater(uint8_t gen, uint8_t ec_ga,
S390FeatGroup group)
{
const S390FeatGroupDef *group_def = s390_feat_group_def(group);
S390FeatBitmap group_def_off;
int i;
bitmap_complement(group_def_off, group_def->feat, S390_FEAT_MAX);
for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) {
const S390CPUDef *cpu_def = &s390_cpu_defs[i];
if (cpu_def->gen < gen) {
continue;
}
if (cpu_def->gen == gen && cpu_def->ec_ga < ec_ga) {
continue;
}
bitmap_and((unsigned long *)&cpu_def->default_feat,
cpu_def->default_feat, group_def_off, S390_FEAT_MAX);
}
}
uint32_t s390_get_hmfai(void)
{
static S390CPU *cpu;