diff options
Diffstat (limited to 'source/components/hardware/hwacpi.c')
| -rw-r--r-- | source/components/hardware/hwacpi.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/source/components/hardware/hwacpi.c b/source/components/hardware/hwacpi.c index d63c36480299..d4d5b55a5237 100644 --- a/source/components/hardware/hwacpi.c +++ b/source/components/hardware/hwacpi.c @@ -75,6 +75,14 @@ AcpiHwSetMode ( ACPI_FUNCTION_TRACE (HwSetMode); + + /* If the Hardware Reduced flag is set, machine is always in acpi mode */ + + if (AcpiGbl_ReducedHardware) + { + return_ACPI_STATUS (AE_OK); + } + /* * ACPI 2.0 clarified that if SMI_CMD in FADT is zero, * system does not support mode transition. @@ -180,28 +188,35 @@ AcpiHwGetMode ( ACPI_FUNCTION_TRACE (HwGetMode); + /* If the Hardware Reduced flag is set, machine is always in acpi mode */ + + if (AcpiGbl_ReducedHardware) + { + return_UINT32 (ACPI_SYS_MODE_ACPI); + } + /* * ACPI 2.0 clarified that if SMI_CMD in FADT is zero, * system does not support mode transition. */ if (!AcpiGbl_FADT.SmiCommand) { - return_VALUE (ACPI_SYS_MODE_ACPI); + return_UINT32 (ACPI_SYS_MODE_ACPI); } Status = AcpiReadBitRegister (ACPI_BITREG_SCI_ENABLE, &Value); if (ACPI_FAILURE (Status)) { - return_VALUE (ACPI_SYS_MODE_LEGACY); + return_UINT32 (ACPI_SYS_MODE_LEGACY); } if (Value) { - return_VALUE (ACPI_SYS_MODE_ACPI); + return_UINT32 (ACPI_SYS_MODE_ACPI); } else { - return_VALUE (ACPI_SYS_MODE_LEGACY); + return_UINT32 (ACPI_SYS_MODE_LEGACY); } } |