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Diffstat (limited to 'qemu/hw/s390x/s390-skeys-kvm.c')
-rw-r--r--qemu/hw/s390x/s390-skeys-kvm.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/qemu/hw/s390x/s390-skeys-kvm.c b/qemu/hw/s390x/s390-skeys-kvm.c
new file mode 100644
index 000000000..131da56bb
--- /dev/null
+++ b/qemu/hw/s390x/s390-skeys-kvm.c
@@ -0,0 +1,76 @@
+/*
+ * 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)