From: Jing Liu <jing2....@linux.intel.com>
We only need to expose it through FADT.
Cc: "Michael S. Tsirkin" <m...@redhat.com>
Cc: Igor Mammedov <imamm...@redhat.com>
Signed-off-by: Jing Liu <jing2....@linux.intel.com>
---
hw/acpi/reduced.c | 7 ++++++-
include/hw/acpi/reduced.h | 2 ++
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/hw/acpi/reduced.c b/hw/acpi/reduced.c
index 329d5112ca..3754258335 100644
--- a/hw/acpi/reduced.c
+++ b/hw/acpi/reduced.c
@@ -128,10 +128,15 @@ static void build_fadt_reduced(GArray *table_data,
BIOSLinker *linker,
AcpiFadtData fadt = {
.rev = 5,
.minor_ver = 1,
- .flags = 1 << ACPI_FADT_F_HW_REDUCED_ACPI,
+ .flags = (1 << ACPI_FADT_F_HW_REDUCED_ACPI) |
+ (1 << ACPI_FADT_F_RESET_REG_SUP),
.dsdt_tbl_offset = &dsdt_tbl_offset,
.xdsdt_tbl_offset = &dsdt_tbl_offset,
.arm_boot_arch = 0,
+ .reset_reg = { .space_id = AML_AS_SYSTEM_IO,
+ .bit_width = 8, .bit_offset = 0,
+ .address = ACPI_REDUCED_RESET_IOPORT },
+ .reset_val = ACPI_REDUCED_RESET_VALUE,
.sleep_control_reg = { .space_id = AML_AS_SYSTEM_IO,
.bit_width = 8, .bit_offset = 0,
.address = ACPI_REDUCED_SLEEP_CONTROL_IOPORT },
diff --git a/include/hw/acpi/reduced.h b/include/hw/acpi/reduced.h
index 3d3c003353..bcd266afd0 100644
--- a/include/hw/acpi/reduced.h
+++ b/include/hw/acpi/reduced.h
@@ -22,6 +22,8 @@
#define ACPI_REDUCED_SLEEP_LEVEL 5
#define ACPI_REDUCED_SLEEP_ENABLE (1 << 5) /* SLP_EN */
#define ACPI_REDUCED_SLEEP_CONTROL_IOPORT 0x3B0
+#define ACPI_REDUCED_RESET_IOPORT 0x3C0
+#define ACPI_REDUCED_RESET_VALUE 4
typedef struct Aml Aml;
--
2.17.2
