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acpi: ged: Add macro for acpi sleep control register

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Macro definition is added for acpi sleep control register, ged emulation
driver can use the macro , also it can be used in FDT table if ged is
exposed with FDT table.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20240918014206.2165821-2-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
This commit is contained in:
Bibo Mao 2024-09-18 09:42:05 +08:00 committed by Song Gao
parent f774a67750
commit edafc90ba4
2 changed files with 8 additions and 5 deletions
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6
hw/acpi/generic_event_device.c
View File

@ -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_POS) & ACPI_GED_SLP_TYP_MASK;
slp_en = !!(data & ACPI_GED_SLP_EN);
if (slp_en && slp_typ == ACPI_GED_SLP_TYP_S5) {
qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
}
return;

7
include/hw/acpi/generic_event_device.h
View File

@ -81,8 +81,11 @@ OBJECT_DECLARE_SIMPLE_TYPE(AcpiGedState, ACPI_GED)
/* ACPI_GED_REG_RESET value for reset*/
#define ACPI_GED_RESET_VALUE 0x42
/* ACPI_GED_REG_SLEEP_CTL.SLP_TYP value for S5 (aka poweroff) */
#define ACPI_GED_SLP_TYP_S5 0x05
/* [ACPI 5.0 Chapter 4.8.3.7] Sleep Control and Status Register */
#define ACPI_GED_SLP_TYP_POS 0x2 /* SLP_TYPx Bit Offset */
#define ACPI_GED_SLP_TYP_MASK 0x07 /* SLP_TYPx 3-bit mask */
#define ACPI_GED_SLP_TYP_S5 0x05 /* System _S5 State (Soft Off) */
#define ACPI_GED_SLP_EN 0x20 /* SLP_EN write-only bit */
#define GED_DEVICE "GED"
#define AML_GED_EVT_REG "EREG"