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ppc/pegasos2: Implement get-time-of-day RTAS function with VOF 

This is needed for Linux to access RTC time.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <6233eb07c680d6c74427e11b9641958f98d53378.1634241019.git.balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
BALATON Zoltan 2021-10-14 21:50:19 +02:00 committed by David Gibson
parent 99173b679a
commit 94cd1ffbe1
1 changed files with 25 additions and 0 deletions
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25
hw/ppc/pegasos2.c
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@ -31,6 +31,8 @@
#include "sysemu/kvm.h"
#include "kvm_ppc.h"
#include "exec/address-spaces.h"
#include "qom/qom-qobject.h"
#include "qapi/qmp/qdict.h"
#include "trace.h"
#include "qemu/datadir.h"
#include "sysemu/device_tree.h"
@ -369,6 +371,29 @@ static target_ulong pegasos2_rtas(PowerPCCPU *cpu, Pegasos2MachineState *pm,
return H_PARAMETER;
}
switch (token) {
case RTAS_GET_TIME_OF_DAY:
{
QObject *qo = object_property_get_qobject(qdev_get_machine(),
"rtc-time", &error_fatal);
QDict *qd = qobject_to(QDict, qo);
if (nargs != 0 || nrets != 8 || !qd) {
stl_be_phys(as, rets, -1);
qobject_unref(qo);
return H_PARAMETER;
}
stl_be_phys(as, rets, 0);
stl_be_phys(as, rets + 4, qdict_get_int(qd, "tm_year") + 1900);
stl_be_phys(as, rets + 8, qdict_get_int(qd, "tm_mon") + 1);
stl_be_phys(as, rets + 12, qdict_get_int(qd, "tm_mday"));
stl_be_phys(as, rets + 16, qdict_get_int(qd, "tm_hour"));
stl_be_phys(as, rets + 20, qdict_get_int(qd, "tm_min"));
stl_be_phys(as, rets + 24, qdict_get_int(qd, "tm_sec"));
stl_be_phys(as, rets + 28, 0);
qobject_unref(qo);
return H_SUCCESS;
}
case RTAS_READ_PCI_CONFIG:
{
uint32_t addr, len, val;