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[Qemu-devel] [PATCH/RFC 1/3] s390x/ais: disable ais facility as it is br
From: |
Christian Borntraeger |
Subject: |
[Qemu-devel] [PATCH/RFC 1/3] s390x/ais: disable ais facility as it is broken |
Date: |
Fri, 22 Sep 2017 10:38:53 +0200 |
The migration interface for ais was introduced with kernel 4.13
but the capability itself had been active since 4.12. As migration
support is considered necessary lets disable ais in the 2.10
stable version. A proper fix and re-enablement will be done
for qemu 2.11.
Signed-off-by: Christian Borntraeger <address@hidden>
Reviewed-by: Cornelia Huck <address@hidden>
---
target/s390x/kvm.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c
index 720cb1d..ebb75ca 100644
--- a/target/s390x/kvm.c
+++ b/target/s390x/kvm.c
@@ -311,8 +311,13 @@ int kvm_arch_init(MachineState *ms, KVMState *s)
}
}
- /* Try to enable AIS facility */
- kvm_vm_enable_cap(s, KVM_CAP_S390_AIS, 0);
+ /*
+ * The migration interface for ais was introduced with kernel 4.13
+ * but the capability itself had been active since 4.12. As migration
+ * support is considered necessary let's disable ais in the 2.10
+ * machine.
+ */
+ /* kvm_vm_enable_cap(s, KVM_CAP_S390_AIS, 0); */
qemu_mutex_init(&qemu_sigp_mutex);
--
2.9.4
- Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, (continued)
- Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, Cornelia Huck, 2017/09/25
- Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, Christian Borntraeger, 2017/09/25
- Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, Cornelia Huck, 2017/09/25
- Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, Christian Borntraeger, 2017/09/25
- Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, Yi Min Zhao, 2017/09/26
- Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, Pierre Morel, 2017/09/22
Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, David Hildenbrand, 2017/09/26
[Qemu-devel] [PATCH/RFC 1/3] s390x/ais: disable ais facility as it is broken,
Christian Borntraeger <=
[Qemu-devel] [PATCH/RFC 3/3] s390x/ais: disable ais for compat machines, Christian Borntraeger, 2017/09/22
- Re: [Qemu-devel] [PATCH/RFC 3/3] s390x/ais: disable ais for compat machines, David Hildenbrand, 2017/09/26
- Re: [Qemu-devel] [PATCH/RFC 3/3] s390x/ais: disable ais for compat machines, Christian Borntraeger, 2017/09/26
- Re: [Qemu-devel] [PATCH/RFC 3/3] s390x/ais: disable ais for compat machines, David Hildenbrand, 2017/09/26
- Re: [Qemu-devel] [PATCH/RFC 3/3] s390x/ais: disable ais for compat machines, Christian Borntraeger, 2017/09/26
- Re: [Qemu-devel] [PATCH/RFC 3/3] s390x/ais: disable ais for compat machines, Cornelia Huck, 2017/09/26
- Re: [Qemu-devel] [PATCH/RFC 3/3] s390x/ais: disable ais for compat machines, Christian Borntraeger, 2017/09/26
Re: [Qemu-devel] [PATCH/RFC 0/3] ais fixups for 2.11, Christian Borntraeger, 2017/09/22