| /* |
| * s390 storage key device |
| * |
| * Copyright 2015 IBM Corp. |
| * Author(s): Jason J. Herne <jjherne@linux.vnet.ibm.com> |
| * |
| * This work is licensed under the terms of the GNU GPL, version 2 or (at |
| * your option) any later version. See the COPYING file in the top-level |
| * directory. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "hw/s390x/storage-keys.h" |
| #include "sysemu/kvm.h" |
| #include "qemu/error-report.h" |
| |
| static int kvm_s390_skeys_enabled(S390SKeysState *ss) |
| { |
| S390SKeysClass *skeyclass = S390_SKEYS_GET_CLASS(ss); |
| uint8_t single_key; |
| int r; |
| |
| r = skeyclass->get_skeys(ss, 0, 1, &single_key); |
| if (r != 0 && r != KVM_S390_GET_SKEYS_NONE) { |
| error_report("S390_GET_KEYS error %d", r); |
| } |
| return (r == 0); |
| } |
| |
| static int kvm_s390_skeys_get(S390SKeysState *ss, uint64_t start_gfn, |
| uint64_t count, uint8_t *keys) |
| { |
| struct kvm_s390_skeys args = { |
| .start_gfn = start_gfn, |
| .count = count, |
| .skeydata_addr = (__u64)keys |
| }; |
| |
| return kvm_vm_ioctl(kvm_state, KVM_S390_GET_SKEYS, &args); |
| } |
| |
| static int kvm_s390_skeys_set(S390SKeysState *ss, uint64_t start_gfn, |
| uint64_t count, uint8_t *keys) |
| { |
| struct kvm_s390_skeys args = { |
| .start_gfn = start_gfn, |
| .count = count, |
| .skeydata_addr = (__u64)keys |
| }; |
| |
| return kvm_vm_ioctl(kvm_state, KVM_S390_SET_SKEYS, &args); |
| } |
| |
| static void kvm_s390_skeys_class_init(ObjectClass *oc, void *data) |
| { |
| S390SKeysClass *skeyclass = S390_SKEYS_CLASS(oc); |
| |
| skeyclass->skeys_enabled = kvm_s390_skeys_enabled; |
| skeyclass->get_skeys = kvm_s390_skeys_get; |
| skeyclass->set_skeys = kvm_s390_skeys_set; |
| } |
| |
| static const TypeInfo kvm_s390_skeys_info = { |
| .name = TYPE_KVM_S390_SKEYS, |
| .parent = TYPE_S390_SKEYS, |
| .instance_size = sizeof(S390SKeysState), |
| .class_init = kvm_s390_skeys_class_init, |
| .class_size = sizeof(S390SKeysClass), |
| }; |
| |
| static void kvm_s390_skeys_register_types(void) |
| { |
| type_register_static(&kvm_s390_skeys_info); |
| } |
| |
| type_init(kvm_s390_skeys_register_types) |