diff options
| -rw-r--r-- | hw/s390x/s390-virtio-ccw.c | 37 | ||||
| -rw-r--r-- | include/hw/s390x/s390-virtio-ccw.h | 1 |
2 files changed, 38 insertions, 0 deletions
diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c index 04bd0ebe40..fdd4384ff0 100644 --- a/hw/s390x/s390-virtio-ccw.c +++ b/hw/s390x/s390-virtio-ccw.c @@ -274,6 +274,36 @@ bool cpu_model_allowed(void) return true; } +static char *machine_get_loadparm(Object *obj, Error **errp) +{ + S390CcwMachineState *ms = S390_CCW_MACHINE(obj); + + return g_memdup(ms->loadparm, sizeof(ms->loadparm)); +} + +static void machine_set_loadparm(Object *obj, const char *val, Error **errp) +{ + S390CcwMachineState *ms = S390_CCW_MACHINE(obj); + int i; + + for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) { + uint8_t c = toupper(val[i]); /* mimic HMC */ + + if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') || + (c == ' ')) { + ms->loadparm[i] = c; + } else { + error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)", + c, c); + return; + } + } + + for (; i < sizeof(ms->loadparm); i++) { + ms->loadparm[i] = ' '; /* pad right with spaces */ + } +} + static inline void s390_machine_initfn(Object *obj) { object_property_add_bool(obj, "aes-key-wrap", @@ -291,6 +321,13 @@ static inline void s390_machine_initfn(Object *obj) "enable/disable DEA key wrapping using the CPACF wrapping key", NULL); object_property_set_bool(obj, true, "dea-key-wrap", NULL); + object_property_add_str(obj, "loadparm", + machine_get_loadparm, machine_set_loadparm, NULL); + object_property_set_description(obj, "loadparm", + "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted" + " to upper case) to pass to machine loader, boot manager," + " and guest kernel", + NULL); } static const TypeInfo ccw_machine_info = { diff --git a/include/hw/s390x/s390-virtio-ccw.h b/include/hw/s390x/s390-virtio-ccw.h index 6ecae00386..7b8a3e4d74 100644 --- a/include/hw/s390x/s390-virtio-ccw.h +++ b/include/hw/s390x/s390-virtio-ccw.h @@ -28,6 +28,7 @@ typedef struct S390CcwMachineState { /*< public >*/ bool aes_key_wrap; bool dea_key_wrap; + uint8_t loadparm[8]; } S390CcwMachineState; typedef struct S390CcwMachineClass { |