diff options
Diffstat (limited to 'qemu/hw/ppc/spapr_rtc.c')
| -rw-r--r-- | qemu/hw/ppc/spapr_rtc.c | 212 |
1 files changed, 0 insertions, 212 deletions
diff --git a/qemu/hw/ppc/spapr_rtc.c b/qemu/hw/ppc/spapr_rtc.c deleted file mode 100644 index 3a17ac42e..000000000 --- a/qemu/hw/ppc/spapr_rtc.c +++ /dev/null @@ -1,212 +0,0 @@ -/* - * QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator - * - * RTAS Real Time Clock - * - * Copyright (c) 2010-2011 David Gibson, IBM Corporation. - * Copyright 2014 David Gibson, Red Hat. - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - */ -#include "qemu/osdep.h" -#include "cpu.h" -#include "qemu/timer.h" -#include "sysemu/sysemu.h" -#include "hw/ppc/spapr.h" -#include "qapi-event.h" -#include "qemu/cutils.h" - -#define SPAPR_RTC(obj) \ - OBJECT_CHECK(sPAPRRTCState, (obj), TYPE_SPAPR_RTC) - -typedef struct sPAPRRTCState sPAPRRTCState; -struct sPAPRRTCState { - /*< private >*/ - SysBusDevice parent_obj; - int64_t ns_offset; -}; - -void spapr_rtc_read(DeviceState *dev, struct tm *tm, uint32_t *ns) -{ - sPAPRRTCState *rtc = SPAPR_RTC(dev); - int64_t host_ns = qemu_clock_get_ns(rtc_clock); - int64_t guest_ns; - time_t guest_s; - - assert(rtc); - - guest_ns = host_ns + rtc->ns_offset; - guest_s = guest_ns / NANOSECONDS_PER_SECOND; - - if (tm) { - gmtime_r(&guest_s, tm); - } - if (ns) { - *ns = guest_ns; - } -} - -int spapr_rtc_import_offset(DeviceState *dev, int64_t legacy_offset) -{ - sPAPRRTCState *rtc; - - if (!dev) { - return -ENODEV; - } - - rtc = SPAPR_RTC(dev); - - rtc->ns_offset = legacy_offset * NANOSECONDS_PER_SECOND; - - return 0; -} - -static void rtas_get_time_of_day(PowerPCCPU *cpu, sPAPRMachineState *spapr, - uint32_t token, uint32_t nargs, - target_ulong args, - uint32_t nret, target_ulong rets) -{ - struct tm tm; - uint32_t ns; - - if ((nargs != 0) || (nret != 8)) { - rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); - return; - } - - if (!spapr->rtc) { - rtas_st(rets, 0, RTAS_OUT_HW_ERROR); - return; - } - - spapr_rtc_read(spapr->rtc, &tm, &ns); - - rtas_st(rets, 0, RTAS_OUT_SUCCESS); - rtas_st(rets, 1, tm.tm_year + 1900); - rtas_st(rets, 2, tm.tm_mon + 1); - rtas_st(rets, 3, tm.tm_mday); - rtas_st(rets, 4, tm.tm_hour); - rtas_st(rets, 5, tm.tm_min); - rtas_st(rets, 6, tm.tm_sec); - rtas_st(rets, 7, ns); -} - -static void rtas_set_time_of_day(PowerPCCPU *cpu, sPAPRMachineState *spapr, - uint32_t token, uint32_t nargs, - target_ulong args, - uint32_t nret, target_ulong rets) -{ - sPAPRRTCState *rtc; - struct tm tm; - time_t new_s; - int64_t host_ns; - - if ((nargs != 7) || (nret != 1)) { - rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); - return; - } - - if (!spapr->rtc) { - rtas_st(rets, 0, RTAS_OUT_HW_ERROR); - return; - } - - tm.tm_year = rtas_ld(args, 0) - 1900; - tm.tm_mon = rtas_ld(args, 1) - 1; - tm.tm_mday = rtas_ld(args, 2); - tm.tm_hour = rtas_ld(args, 3); - tm.tm_min = rtas_ld(args, 4); - tm.tm_sec = rtas_ld(args, 5); - - new_s = mktimegm(&tm); - if (new_s == -1) { - rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); - return; - } - - /* Generate a monitor event for the change */ - qapi_event_send_rtc_change(qemu_timedate_diff(&tm), &error_abort); - - rtc = SPAPR_RTC(spapr->rtc); - - host_ns = qemu_clock_get_ns(rtc_clock); - - rtc->ns_offset = (new_s * NANOSECONDS_PER_SECOND) - host_ns; - - rtas_st(rets, 0, RTAS_OUT_SUCCESS); -} - -static void spapr_rtc_qom_date(Object *obj, struct tm *current_tm, Error **errp) -{ - spapr_rtc_read(DEVICE(obj), current_tm, NULL); -} - -static void spapr_rtc_realize(DeviceState *dev, Error **errp) -{ - sPAPRRTCState *rtc = SPAPR_RTC(dev); - struct tm tm; - time_t host_s; - int64_t rtc_ns; - - /* Initialize the RTAS RTC from host time */ - - qemu_get_timedate(&tm, 0); - host_s = mktimegm(&tm); - rtc_ns = qemu_clock_get_ns(rtc_clock); - rtc->ns_offset = host_s * NANOSECONDS_PER_SECOND - rtc_ns; - - object_property_add_tm(OBJECT(rtc), "date", spapr_rtc_qom_date, NULL); -} - -static const VMStateDescription vmstate_spapr_rtc = { - .name = "spapr/rtc", - .version_id = 1, - .minimum_version_id = 1, - .fields = (VMStateField[]) { - VMSTATE_INT64(ns_offset, sPAPRRTCState), - VMSTATE_END_OF_LIST() - }, -}; - -static void spapr_rtc_class_init(ObjectClass *oc, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(oc); - - dc->realize = spapr_rtc_realize; - dc->vmsd = &vmstate_spapr_rtc; - - spapr_rtas_register(RTAS_GET_TIME_OF_DAY, "get-time-of-day", - rtas_get_time_of_day); - spapr_rtas_register(RTAS_SET_TIME_OF_DAY, "set-time-of-day", - rtas_set_time_of_day); -} - -static const TypeInfo spapr_rtc_info = { - .name = TYPE_SPAPR_RTC, - .parent = TYPE_SYS_BUS_DEVICE, - .instance_size = sizeof(sPAPRRTCState), - .class_init = spapr_rtc_class_init, -}; - -static void spapr_rtc_register_types(void) -{ - type_register_static(&spapr_rtc_info); -} -type_init(spapr_rtc_register_types) |