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KVM: s390: implement subfunction processor calls

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While we will not implement interception for query functions yet, we can
and should disable functions that have a control bit based on the given
CPU model.

Let us start with enabling the subfunction interface.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
Christian Borntraeger
2019-02-18 07:48:25 -05:00
parent b9fa6d6ee9
commit 346fa2f891
2 changed files with 23 additions and 13 deletions
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arch/s390/include/asm/kvm_host.h
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@@ -711,6 +711,7 @@ struct s390_io_adapter {
struct kvm_s390_cpu_model {
/* facility mask supported by kvm & hosting machine */
__u64 fac_mask[S390_ARCH_FAC_LIST_SIZE_U64];
struct kvm_s390_vm_cpu_subfunc subfuncs;
/* facility list requested by guest (in dma page) */
__u64 *fac_list;
u64 cpuid;