diff options
Diffstat (limited to 'include/hw')
| -rw-r--r-- | include/hw/loader.h | 2 | ||||
| -rw-r--r-- | include/hw/s390x/tod.h | 65 |
2 files changed, 66 insertions, 1 deletions
diff --git a/include/hw/loader.h b/include/hw/loader.h index 5ed3fd8ae6..e98b84b8f9 100644 --- a/include/hw/loader.h +++ b/include/hw/loader.h @@ -226,7 +226,7 @@ void rom_set_fw(FWCfgState *f); void rom_set_order_override(int order); void rom_reset_order_override(void); int rom_copy(uint8_t *dest, hwaddr addr, size_t size); -void *rom_ptr(hwaddr addr); +void *rom_ptr(hwaddr addr, size_t size); void hmp_info_roms(Monitor *mon, const QDict *qdict); #define rom_add_file_fixed(_f, _a, _i) \ diff --git a/include/hw/s390x/tod.h b/include/hw/s390x/tod.h new file mode 100644 index 0000000000..413c0d7c02 --- /dev/null +++ b/include/hw/s390x/tod.h @@ -0,0 +1,65 @@ +/* + * TOD (Time Of Day) clock + * + * Copyright 2018 Red Hat, Inc. + * Author(s): David Hildenbrand <david@redhat.com> + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#ifndef HW_S390_TOD_H +#define HW_S390_TOD_H + +#include "hw/qdev.h" + +typedef struct S390TOD { + uint8_t high; + uint64_t low; +} S390TOD; + +#define TYPE_S390_TOD "s390-tod" +#define S390_TOD(obj) OBJECT_CHECK(S390TODState, (obj), TYPE_S390_TOD) +#define S390_TOD_CLASS(oc) OBJECT_CLASS_CHECK(S390TODClass, (oc), \ + TYPE_S390_TOD) +#define S390_TOD_GET_CLASS(obj) OBJECT_GET_CLASS(S390TODClass, (obj), \ + TYPE_S390_TOD) +#define TYPE_KVM_S390_TOD TYPE_S390_TOD "-kvm" +#define TYPE_QEMU_S390_TOD TYPE_S390_TOD "-qemu" + +typedef struct S390TODState { + /* private */ + DeviceState parent_obj; + + /* unused by KVM implementation */ + S390TOD base; +} S390TODState; + +typedef struct S390TODClass { + /* private */ + DeviceClass parent_class; + + /* public */ + void (*get)(const S390TODState *td, S390TOD *tod, Error **errp); + void (*set)(S390TODState *td, const S390TOD *tod, Error **errp); +} S390TODClass; + +/* The value of the TOD clock for 1.1.1970. */ +#define TOD_UNIX_EPOCH 0x7d91048bca000000ULL + +/* Converts ns to s390's clock format */ +static inline uint64_t time2tod(uint64_t ns) +{ + return (ns << 9) / 125 + (((ns & 0xff10000000000000ull) / 125) << 9); +} + +/* Converts s390's clock format to ns */ +static inline uint64_t tod2time(uint64_t t) +{ + return ((t >> 9) * 125) + (((t & 0x1ff) * 125) >> 9); +} + +void s390_init_tod(void); +S390TODState *s390_get_todstate(void); + +#endif |