On 2024/9/11 上午1:32, Michael S. Tsirkin wrote:
On Fri, Sep 06, 2024 at 10:19:42AM +0800, Bibo Mao wrote:
Macro definition is added for acpi ged sleep register, so that ged
emulation driver can use this, also it can be used in FDT table if
ged is exposed with FDT table.
Signed-off-by: Bibo Mao <maob...@loongson.cn>
---
hw/acpi/generic_event_device.c | 6 +++---
include/hw/acpi/generic_event_device.h | 3 +++
2 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c
index 15b4c3ebbf..10a338877c 100644
--- a/hw/acpi/generic_event_device.c
+++ b/hw/acpi/generic_event_device.c
@@ -201,9 +201,9 @@ static void ged_regs_write(void *opaque, hwaddr addr,
uint64_t data,
switch (addr) {
case ACPI_GED_REG_SLEEP_CTL:
- slp_typ = (data >> 2) & 0x07;
- slp_en = (data >> 5) & 0x01;
- if (slp_en && slp_typ == 5) {
+ slp_typ = (data & ACPI_GED_SLP_TYP_MASK) >> ACPI_GED_SLP_TYP_SHIFT;
+ slp_en = !!(data & ACPI_GED_SLP_ENABLE);
+ if (slp_en && slp_typ == ACPI_GED_SLP_TYP_S5) {
qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
}
return;
diff --git a/include/hw/acpi/generic_event_device.h
b/include/hw/acpi/generic_event_device.h
index 40af3550b5..526fea6efe 100644
--- a/include/hw/acpi/generic_event_device.h
+++ b/include/hw/acpi/generic_event_device.h
@@ -82,7 +82,10 @@ OBJECT_DECLARE_SIMPLE_TYPE(AcpiGedState, ACPI_GED)
#define ACPI_GED_RESET_VALUE 0x42
/* ACPI_GED_REG_SLEEP_CTL.SLP_TYP value for S5 (aka poweroff) */
+#define ACPI_GED_SLP_TYP_SHIFT 0x02
#define ACPI_GED_SLP_TYP_S5 0x05
+#define ACPI_GED_SLP_TYP_MASK 0x1C
+#define ACPI_GED_SLP_ENABLE 0x20
The comment is wrong now, isn't it?
Pls document each value, copying name from spec verbatim.
The name comes from linux header files with little modification.
#define ACPI_X_WAKE_STATUS 0x80
#define ACPI_X_SLEEP_TYPE_MASK 0x1C
#define ACPI_X_SLEEP_TYPE_POSITION 0x02
#define ACPI_X_SLEEP_ENABLE 0x20
yeap, it will better if comes from spec verbatim. I will investigate and
refresh the patch in next version.
Regards
Bibo Mao
#define GED_DEVICE "GED"
#define AML_GED_EVT_REG "EREG"
--
2.39.3
