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-rw-r--r--src/arch/x86/acpi.c6
-rw-r--r--src/arch/x86/include/arch/acpi.h2
2 files changed, 8 insertions, 0 deletions
diff --git a/src/arch/x86/acpi.c b/src/arch/x86/acpi.c
index 55995c9542..c540b5ce4c 100644
--- a/src/arch/x86/acpi.c
+++ b/src/arch/x86/acpi.c
@@ -1005,6 +1005,12 @@ int acpi_is_wakeup_s3(void)
return (acpi_slp_type == 3);
}
+int acpi_is_wakeup_s4(void)
+{
+ acpi_handoff_wakeup();
+ return (acpi_slp_type == 4);
+}
+
void acpi_fail_wakeup(void)
{
if (acpi_slp_type == 3 || acpi_slp_type == 2)
diff --git a/src/arch/x86/include/arch/acpi.h b/src/arch/x86/include/arch/acpi.h
index 66e11006dc..87810b6b44 100644
--- a/src/arch/x86/include/arch/acpi.h
+++ b/src/arch/x86/include/arch/acpi.h
@@ -596,12 +596,14 @@ static inline int acpi_is_wakeup_s3(void)
#else
int acpi_is_wakeup(void);
int acpi_is_wakeup_s3(void);
+int acpi_is_wakeup_s4(void);
#endif
#else
#define acpi_slp_type 0
static inline int acpi_is_wakeup(void) { return 0; }
static inline int acpi_is_wakeup_s3(void) { return 0; }
+static inline int acpi_is_wakeup_s4(void) { return 0; }
#endif
#endif /* __ASM_ACPI_H */