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authorThomas Huth <thuth@redhat.com>2019-09-13 11:14:43 +0200
committerChristian Borntraeger <borntraeger@de.ibm.com>2019-09-23 09:15:03 +0200
commit7d69e8bc3b0ca4e48b24e7cb9db6dd77fa0b3481 (patch)
tree571869e42b16e8d54ad9ab72a245abec980142c7 /hw/intc/s390_flic_kvm.c
parente0d95e100ff6d9188f188b431309ccba6075cf42 (diff)
s390x/kvm: Officially require at least kernel 3.15
Since QEMU v2.10, the KVM acceleration does not work on older kernels anymore since the code accidentally requires the KVM_CAP_DEVICE_CTRL capability now - it should have been optional instead. Instead of fixing the bug, we asked in the ChangeLog of QEMU 2.11 - 3.0 that people should speak up if they still need support of QEMU running with KVM on older kernels, but seems like nobody really complained. Thus let's make this official now and turn it into a proper error message, telling the users to use at least kernel 3.15 now. Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <20190913091443.27565-1-thuth@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'hw/intc/s390_flic_kvm.c')
-rw-r--r--hw/intc/s390_flic_kvm.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/hw/intc/s390_flic_kvm.c b/hw/intc/s390_flic_kvm.c
index 819aa5e198..cedccba8a9 100644
--- a/hw/intc/s390_flic_kvm.c
+++ b/hw/intc/s390_flic_kvm.c
@@ -589,12 +589,6 @@ static void kvm_s390_flic_realize(DeviceState *dev, Error **errp)
goto fail;
}
flic_state->fd = -1;
- if (!kvm_check_extension(kvm_state, KVM_CAP_DEVICE_CTRL)) {
- error_setg_errno(&errp_local, errno, "KVM is missing capability"
- " KVM_CAP_DEVICE_CTRL");
- trace_flic_no_device_api(errno);
- goto fail;
- }
cd.type = KVM_DEV_TYPE_FLIC;
ret = kvm_vm_ioctl(kvm_state, KVM_CREATE_DEVICE, &cd);