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