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s390x/tcg: implement Interlocked-Access Facility 2

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With this facility, OI/OIY, NI/NIY and XI/XIY are atomic. All operate on
one byte (MO_UB). Emulate old behavior.

Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20171208160207.26494-8-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
David Hildenbrand 2017-12-08 17:02:00 +01:00 • committed by Cornelia Huck
parent 0e9383bca8
commit f400be1813
3 changed files with 70 additions and 6 deletions
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target/s390x/cpu_models.c
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@ -842,6 +842,7 @@ static void add_qemu_cpu_model_features(S390FeatBitmap fbm)
S390_FEAT_STFLE_45,
S390_FEAT_STFLE_49,
S390_FEAT_LOCAL_TLB_CLEARING,
S390_FEAT_INTERLOCKED_ACCESS_2,
S390_FEAT_STFLE_53,
S390_FEAT_MSA_EXT_5,
S390_FEAT_MSA_EXT_3,