Hi Igor, On 6/3/2025 8:34 AM, Igor Mammedov wrote:
On Wed, 28 May 2025 12:39:52 -0400 Annie Li <annie...@oracle.com> wrote:The GPE event is triggered to notify x86 guest to sleep itself. The function acpi_send_sleep_event will also trigger GED events on HW-reduced systems where ACPI GED sleep event is supported. Signed-off-by: Annie Li <annie...@oracle.com> --- hw/acpi/core.c | 12 ++++++++++++ include/hw/acpi/acpi.h | 1 + include/hw/acpi/acpi_dev_interface.h | 1 + 3 files changed, 14 insertions(+) diff --git a/hw/acpi/core.c b/hw/acpi/core.c index 58f8964e13..dcabe881bf 100644 --- a/hw/acpi/core.c +++ b/hw/acpi/core.c @@ -359,6 +359,18 @@ int acpi_get_slic_oem(AcpiSlicOem *oem) return -1; }+void acpi_send_sleep_event(void)+{ + bool ambiguous; + Object *obj = object_resolve_path_type("", TYPE_ACPI_DEVICE_IF, &ambiguous); + + assert(!ambiguous); + if (obj) {Can it ever be NULL? If not drop condition.
assert happens earlier if it is NULL. will drop it. Thanks Annie
+ /* Send sleep event */ + acpi_send_event(DEVICE(obj), ACPI_SLEEP_STATUS); + } +} + static void acpi_notify_wakeup(Notifier *notifier, void *data) { ACPIREGS *ar = container_of(notifier, ACPIREGS, wakeup); diff --git a/include/hw/acpi/acpi.h b/include/hw/acpi/acpi.h index d1a4fa2af8..64d3ff78ed 100644 --- a/include/hw/acpi/acpi.h +++ b/include/hw/acpi/acpi.h @@ -184,6 +184,7 @@ uint32_t acpi_gpe_ioport_readb(ACPIREGS *ar, uint32_t addr);void acpi_send_gpe_event(ACPIREGS *ar, qemu_irq irq,AcpiEventStatusBits status); +void acpi_send_sleep_event(void);void acpi_update_sci(ACPIREGS *acpi_regs, qemu_irq irq); diff --git a/include/hw/acpi/acpi_dev_interface.h b/include/hw/acpi/acpi_dev_interface.hindex 68d9d15f50..1cb050cd3a 100644 --- a/include/hw/acpi/acpi_dev_interface.h +++ b/include/hw/acpi/acpi_dev_interface.h @@ -13,6 +13,7 @@ typedef enum { ACPI_NVDIMM_HOTPLUG_STATUS = 16, ACPI_VMGENID_CHANGE_STATUS = 32, ACPI_POWER_DOWN_STATUS = 64, + ACPI_SLEEP_STATUS = 128, } AcpiEventStatusBits;#define TYPE_ACPI_DEVICE_IF "acpi-device-interface"
