diff options
Diffstat (limited to 'target/arm/machine.c')
| -rw-r--r-- | target/arm/machine.c | 41 |
1 files changed, 40 insertions, 1 deletions
diff --git a/target/arm/machine.c b/target/arm/machine.c index fa5ec76090..d8094a840b 100644 --- a/target/arm/machine.c +++ b/target/arm/machine.c @@ -211,6 +211,38 @@ static const VMStateInfo vmstate_cpsr = { .put = put_cpsr, }; +static int get_power(QEMUFile *f, void *opaque, size_t size, + VMStateField *field) +{ + ARMCPU *cpu = opaque; + bool powered_off = qemu_get_byte(f); + cpu->power_state = powered_off ? PSCI_OFF : PSCI_ON; + return 0; +} + +static int put_power(QEMUFile *f, void *opaque, size_t size, + VMStateField *field, QJSON *vmdesc) +{ + ARMCPU *cpu = opaque; + + /* Migration should never happen while we transition power states */ + + if (cpu->power_state == PSCI_ON || + cpu->power_state == PSCI_OFF) { + bool powered_off = (cpu->power_state == PSCI_OFF) ? true : false; + qemu_put_byte(f, powered_off); + return 0; + } else { + return 1; + } +} + +static const VMStateInfo vmstate_powered_off = { + .name = "powered_off", + .get = get_power, + .put = put_power, +}; + static void cpu_pre_save(void *opaque) { ARMCPU *cpu = opaque; @@ -329,7 +361,14 @@ const VMStateDescription vmstate_arm_cpu = { VMSTATE_UINT64(env.exception.vaddress, ARMCPU), VMSTATE_TIMER_PTR(gt_timer[GTIMER_PHYS], ARMCPU), VMSTATE_TIMER_PTR(gt_timer[GTIMER_VIRT], ARMCPU), - VMSTATE_BOOL(powered_off, ARMCPU), + { + .name = "power_state", + .version_id = 0, + .size = sizeof(bool), + .info = &vmstate_powered_off, + .flags = VMS_SINGLE, + .offset = 0, + }, VMSTATE_END_OF_LIST() }, .subsections = (const VMStateDescription*[]) { |