diff options
| -rw-r--r-- | hw/acpi/piix4.c | 3 | ||||
| -rw-r--r-- | hw/isa/lpc_ich9.c | 3 |
2 files changed, 6 insertions, 0 deletions
diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c index 3bd1d5a865..3af0fa726c 100644 --- a/hw/acpi/piix4.c +++ b/hw/acpi/piix4.c @@ -112,6 +112,9 @@ static void apm_ctrl_changed(uint32_t val, void *arg) /* ACPI specs 3.0, 4.7.2.5 */ acpi_pm1_cnt_update(&s->ar, val == ACPI_ENABLE, val == ACPI_DISABLE); + if (val == ACPI_ENABLE || val == ACPI_DISABLE) { + return; + } if (d->config[0x5b] & (1 << 1)) { if (s->smi_irq) { diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c index b3e0b1fd52..341a727f9f 100644 --- a/hw/isa/lpc_ich9.c +++ b/hw/isa/lpc_ich9.c @@ -375,6 +375,9 @@ static void ich9_apm_ctrl_changed(uint32_t val, void *arg) acpi_pm1_cnt_update(&lpc->pm.acpi_regs, val == ICH9_APM_ACPI_ENABLE, val == ICH9_APM_ACPI_DISABLE); + if (val == ICH9_APM_ACPI_ENABLE || val == ICH9_APM_ACPI_DISABLE) { + return; + } /* SMI_EN = PMBASE + 30. SMI control and enable register */ if (lpc->pm.smi_en & ICH9_PMIO_SMI_EN_APMC_EN) { |