diff options
| -rw-r--r-- | hw/openrisc/cputimer.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/hw/openrisc/cputimer.c b/hw/openrisc/cputimer.c index 9326881..10163b3 100644 --- a/hw/openrisc/cputimer.c +++ b/hw/openrisc/cputimer.c @@ -22,6 +22,7 @@ #include "cpu.h" #include "migration/vmstate.h" #include "qemu/timer.h" +#include "sysemu/reset.h" #define TIMER_PERIOD 50 /* 50 ns period for 20 MHz timer */ @@ -122,6 +123,24 @@ static void openrisc_timer_cb(void *opaque) qemu_cpu_kick(CPU(cpu)); } +/* Reset the per CPU counter state. */ +static void openrisc_count_reset(void *opaque) +{ + OpenRISCCPU *cpu = opaque; + + if (cpu->env.is_counting) { + cpu_openrisc_count_stop(cpu); + } + cpu->env.ttmr = 0x00000000; +} + +/* Reset the global timer state. */ +static void openrisc_timer_reset(void *opaque) +{ + or1k_timer->ttcr = 0x00000000; + or1k_timer->last_clk = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); +} + static const VMStateDescription vmstate_or1k_timer = { .name = "or1k_timer", .version_id = 1, @@ -136,10 +155,11 @@ static const VMStateDescription vmstate_or1k_timer = { void cpu_openrisc_clock_init(OpenRISCCPU *cpu) { cpu->env.timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, &openrisc_timer_cb, cpu); - cpu->env.ttmr = 0x00000000; + qemu_register_reset(openrisc_count_reset, cpu); if (or1k_timer == NULL) { or1k_timer = g_new0(OR1KTimerState, 1); + qemu_register_reset(openrisc_timer_reset, cpu); vmstate_register(NULL, 0, &vmstate_or1k_timer, or1k_timer); } } |