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-rw-r--r--hw/acpi/core.c11
-rw-r--r--hw/acpi/ich9.c2
-rw-r--r--hw/acpi/piix4.c3
3 files changed, 13 insertions, 3 deletions
diff --git a/hw/acpi/core.c b/hw/acpi/core.c
index 7170bff657..1e004d0078 100644
--- a/hw/acpi/core.c
+++ b/hw/acpi/core.c
@@ -579,6 +579,10 @@ void acpi_pm1_cnt_update(ACPIREGS *ar,
bool sci_enable, bool sci_disable)
{
/* ACPI specs 3.0, 4.7.2.5 */
+ if (ar->pm1.cnt.acpi_only) {
+ return;
+ }
+
if (sci_enable) {
ar->pm1.cnt.cnt |= ACPI_BITMASK_SCI_ENABLE;
} else if (sci_disable) {
@@ -608,11 +612,13 @@ static const MemoryRegionOps acpi_pm_cnt_ops = {
};
void acpi_pm1_cnt_init(ACPIREGS *ar, MemoryRegion *parent,
- bool disable_s3, bool disable_s4, uint8_t s4_val)
+ bool disable_s3, bool disable_s4, uint8_t s4_val,
+ bool acpi_only)
{
FWCfgState *fw_cfg;
ar->pm1.cnt.s4_val = s4_val;
+ ar->pm1.cnt.acpi_only = acpi_only;
ar->wakeup.notify = acpi_notify_wakeup;
qemu_register_wakeup_notifier(&ar->wakeup);
@@ -638,6 +644,9 @@ void acpi_pm1_cnt_init(ACPIREGS *ar, MemoryRegion *parent,
void acpi_pm1_cnt_reset(ACPIREGS *ar)
{
ar->pm1.cnt.cnt = 0;
+ if (ar->pm1.cnt.acpi_only) {
+ ar->pm1.cnt.cnt |= ACPI_BITMASK_SCI_ENABLE;
+ }
}
/* ACPI GPE */
diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
index 5ff4e01c36..853447cf9d 100644
--- a/hw/acpi/ich9.c
+++ b/hw/acpi/ich9.c
@@ -282,7 +282,7 @@ void ich9_pm_init(PCIDevice *lpc_pci, ICH9LPCPMRegs *pm,
acpi_pm_tmr_init(&pm->acpi_regs, ich9_pm_update_sci_fn, &pm->io);
acpi_pm1_evt_init(&pm->acpi_regs, ich9_pm_update_sci_fn, &pm->io);
acpi_pm1_cnt_init(&pm->acpi_regs, &pm->io, pm->disable_s3, pm->disable_s4,
- pm->s4_val);
+ pm->s4_val, !pm->smm_compat && !smm_enabled);
acpi_gpe_init(&pm->acpi_regs, ICH9_PMIO_GPE0_LEN);
memory_region_init_io(&pm->io_gpe, OBJECT(lpc_pci), &ich9_gpe_ops, pm,
diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index 30dd9b2309..1efc0ded9f 100644
--- a/hw/acpi/piix4.c
+++ b/hw/acpi/piix4.c
@@ -497,7 +497,8 @@ static void piix4_pm_realize(PCIDevice *dev, Error **errp)
acpi_pm_tmr_init(&s->ar, pm_tmr_timer, &s->io);
acpi_pm1_evt_init(&s->ar, pm_tmr_timer, &s->io);
- acpi_pm1_cnt_init(&s->ar, &s->io, s->disable_s3, s->disable_s4, s->s4_val);
+ acpi_pm1_cnt_init(&s->ar, &s->io, s->disable_s3, s->disable_s4, s->s4_val,
+ !s->smm_compat && !s->smm_enabled);
acpi_gpe_init(&s->ar, GPE_LEN);
s->powerdown_notifier.notify = piix4_pm_powerdown_req;