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s390x/cpumodel: default enable mepoch for z14 and later

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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
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2
target/s390x/gen-features.c
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@ -550,6 +550,8 @@ static uint16_t default_GEN14_GA1[] = {
S390_FEAT_GROUP_MSA_EXT_6,
S390_FEAT_GROUP_MSA_EXT_7,
S390_FEAT_GROUP_MSA_EXT_8,
S390_FEAT_MULTIPLE_EPOCH,
S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF,
};
/* QEMU (CPU model) features */