kvm->arch.crypto.crycbd |= CRYCB_FORMAT1;
}
+/*
+ * kvm_arch_crypto_set_masks
+ *
+ * @kvm: pointer to the target guest's KVM struct containing the crypto masks
+ * to be set.
+ * @apm: the mask identifying the accessible AP adapters
+ * @aqm: the mask identifying the accessible AP domains
+ * @adm: the mask identifying the accessible AP control domains
+ *
+ * Set the masks that identify the adapters, domains and control domains to
+ * which the KVM guest is granted access.
+ *
+ * Note: The kvm->lock mutex must be locked by the caller before invoking this
+ * function.
+ */
void kvm_arch_crypto_set_masks(struct kvm *kvm, unsigned long *apm,
unsigned long *aqm, unsigned long *adm)
{
struct kvm_s390_crypto_cb *crycb = kvm->arch.crypto.crycb;
- mutex_lock(&kvm->lock);
kvm_s390_vcpu_block_all(kvm);
switch (kvm->arch.crypto.crycbd & CRYCB_FORMAT_MASK) {
/* recreate the shadow crycb for each vcpu */
kvm_s390_sync_request_broadcast(kvm, KVM_REQ_VSIE_RESTART);
kvm_s390_vcpu_unblock_all(kvm);
- mutex_unlock(&kvm->lock);
}
EXPORT_SYMBOL_GPL(kvm_arch_crypto_set_masks);
+/*
+ * kvm_arch_crypto_clear_masks
+ *
+ * @kvm: pointer to the target guest's KVM struct containing the crypto masks
+ * to be cleared.
+ *
+ * Clear the masks that identify the adapters, domains and control domains to
+ * which the KVM guest is granted access.
+ *
+ * Note: The kvm->lock mutex must be locked by the caller before invoking this
+ * function.
+ */
void kvm_arch_crypto_clear_masks(struct kvm *kvm)
{
- mutex_lock(&kvm->lock);
kvm_s390_vcpu_block_all(kvm);
memset(&kvm->arch.crypto.crycb->apcb0, 0,
/* recreate the shadow crycb for each vcpu */
kvm_s390_sync_request_broadcast(kvm, KVM_REQ_VSIE_RESTART);
kvm_s390_vcpu_unblock_all(kvm);
- mutex_unlock(&kvm->lock);
}
EXPORT_SYMBOL_GPL(kvm_arch_crypto_clear_masks);
{
kvm->arch.crypto.crycb = &kvm->arch.sie_page2->crycb;
kvm_s390_set_crycb_format(kvm);
+ init_rwsem(&kvm->arch.crypto.pqap_hook_rwsem);
if (!test_kvm_facility(kvm, 76))
return;