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| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2018-01-18 09:56:27 +0100 |
|---|---|---|
| committer | Cornelia Huck <cohuck@redhat.com> | 2018-01-22 11:22:30 +0100 |
| commit | b073c87517d4d348c7bac0f0b35e8e83e6354d82 (patch) | |
| tree | 4c00978328434618b9f2378350f9807b369a0a16 /target/s390x/cpu_features.c | |
| parent | 9cbb636270b4df6f0a548e5c34b895330db5df8b (diff) | |
| download | qemu-b073c87517d4d348c7bac0f0b35e8e83e6354d82.zip qemu-b073c87517d4d348c7bac0f0b35e8e83e6354d82.tar.gz qemu-b073c87517d4d348c7bac0f0b35e8e83e6354d82.tar.bz2 | |
s390x/kvm: Handle bpb feature
We need to handle the bpb control on reset and migration. Normally
stfle.82 is transparent (and the normal guest part works without
hypervisor activity). To prevent any issues we require full
host kernel support for this feature.
Cc: qemu-stable@nongnu.org
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-Id: <20180118085628.40798-3-borntraeger@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
[CH: 'Branch Prediction Blocking' -> 'Branch prediction blocking']
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'target/s390x/cpu_features.c')
| -rw-r--r-- | target/s390x/cpu_features.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/target/s390x/cpu_features.c b/target/s390x/cpu_features.c index 31a4676..b45ef09 100644 --- a/target/s390x/cpu_features.c +++ b/target/s390x/cpu_features.c @@ -89,6 +89,7 @@ static const S390FeatDef s390_features[] = { FEAT_INIT("msa4-base", S390_FEAT_TYPE_STFL, 77, "Message-security-assist-extension-4 facility (excluding subfunctions)"), FEAT_INIT("edat2", S390_FEAT_TYPE_STFL, 78, "Enhanced-DAT facility 2"), FEAT_INIT("dfppc", S390_FEAT_TYPE_STFL, 80, "Decimal-floating-point packed-conversion facility"), + FEAT_INIT("bpb", S390_FEAT_TYPE_STFL, 82, "Branch prediction blocking"), FEAT_INIT("vx", S390_FEAT_TYPE_STFL, 129, "Vector facility"), FEAT_INIT("iep", S390_FEAT_TYPE_STFL, 130, "Instruction-execution-protection facility"), FEAT_INIT("sea_esop2", S390_FEAT_TYPE_STFL, 131, "Side-effect-access facility and Enhanced-suppression-on-protection facility 2"), |