Commit 3f2d07b3 authored by Christian Borntraeger's avatar Christian Borntraeger Committed by Cornelia Huck
Browse files

s390x/ais: for 2.10 stable: disable ais facility 



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: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
Message-Id: <20170921140834.14233-2-borntraeger@de.ibm.com>
Signed-off-by: default avatarCornelia Huck <cohuck@redhat.com>
parent 0a8066f0

target/s390x/kvm.c

+7 −2
Original line number Diff line number Diff line
@@ -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);