mirror of https://github.com/proxmox/mirror_qemu
pseries: Implement set-time-of-day RTAS function
Currently there is no implementation for set-time-of-day rtas function, which causes the following warning "setting the clock failed (-1)" on the guest. This patch just creates this function, get the timedate diff and store in the papr environment, so that the correct value will be returned by get-time-of-day. In order to try it, just adjust the hardware time, run hwclock --systohc, so that, on when the system runs hwclock --hctosys, the value is correctly adjusted, i.e. the host time plus the timediff. Signed-off-by: Breno Leitao <brenohl@br.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>master
parent
e6c866d417
commit
ac26f8c389
|
@ -18,6 +18,7 @@ typedef struct sPAPREnvironment {
|
||||||
void *fdt_skel;
|
void *fdt_skel;
|
||||||
target_ulong entry_point;
|
target_ulong entry_point;
|
||||||
int next_irq;
|
int next_irq;
|
||||||
|
int rtc_offset;
|
||||||
} sPAPREnvironment;
|
} sPAPREnvironment;
|
||||||
|
|
||||||
#define H_SUCCESS 0
|
#define H_SUCCESS 0
|
||||||
|
|
|
@ -67,7 +67,7 @@ static void rtas_get_time_of_day(sPAPREnvironment *spapr,
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
|
|
||||||
qemu_get_timedate(&tm, 0);
|
qemu_get_timedate(&tm, spapr->rtc_offset);
|
||||||
|
|
||||||
rtas_st(rets, 0, 0); /* Success */
|
rtas_st(rets, 0, 0); /* Success */
|
||||||
rtas_st(rets, 1, tm.tm_year + 1900);
|
rtas_st(rets, 1, tm.tm_year + 1900);
|
||||||
|
@ -79,6 +79,27 @@ static void rtas_get_time_of_day(sPAPREnvironment *spapr,
|
||||||
rtas_st(rets, 7, 0); /* we don't do nanoseconds */
|
rtas_st(rets, 7, 0); /* we don't do nanoseconds */
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static void rtas_set_time_of_day(sPAPREnvironment *spapr,
|
||||||
|
uint32_t token, uint32_t nargs,
|
||||||
|
target_ulong args,
|
||||||
|
uint32_t nret, target_ulong rets)
|
||||||
|
{
|
||||||
|
struct tm tm;
|
||||||
|
|
||||||
|
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);
|
||||||
|
|
||||||
|
/* Just generate a monitor event for the change */
|
||||||
|
rtc_change_mon_event(&tm);
|
||||||
|
spapr->rtc_offset = qemu_timedate_diff(&tm);
|
||||||
|
|
||||||
|
rtas_st(rets, 0, 0); /* Success */
|
||||||
|
}
|
||||||
|
|
||||||
static void rtas_power_off(sPAPREnvironment *spapr,
|
static void rtas_power_off(sPAPREnvironment *spapr,
|
||||||
uint32_t token, uint32_t nargs, target_ulong args,
|
uint32_t token, uint32_t nargs, target_ulong args,
|
||||||
uint32_t nret, target_ulong rets)
|
uint32_t nret, target_ulong rets)
|
||||||
|
@ -271,6 +292,7 @@ static void register_core_rtas(void)
|
||||||
{
|
{
|
||||||
spapr_rtas_register("display-character", rtas_display_character);
|
spapr_rtas_register("display-character", rtas_display_character);
|
||||||
spapr_rtas_register("get-time-of-day", rtas_get_time_of_day);
|
spapr_rtas_register("get-time-of-day", rtas_get_time_of_day);
|
||||||
|
spapr_rtas_register("set-time-of-day", rtas_set_time_of_day);
|
||||||
spapr_rtas_register("power-off", rtas_power_off);
|
spapr_rtas_register("power-off", rtas_power_off);
|
||||||
spapr_rtas_register("query-cpu-stopped-state",
|
spapr_rtas_register("query-cpu-stopped-state",
|
||||||
rtas_query_cpu_stopped_state);
|
rtas_query_cpu_stopped_state);
|
||||||
|
|
Loading…
Reference in New Issue