diff options
Diffstat (limited to 'source/components/hardware/hwvalid.c')
| -rw-r--r-- | source/components/hardware/hwvalid.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/source/components/hardware/hwvalid.c b/source/components/hardware/hwvalid.c index d297905b7..d2bcacafb 100644 --- a/source/components/hardware/hwvalid.c +++ b/source/components/hardware/hwvalid.c @@ -169,8 +169,8 @@ AcpiHwValidateIoRequest ( * * The table is used to implement the Microsoft port access rules that * first appeared in Windows XP. Some ports are always illegal, and some - * ports are only illegal if the BIOS calls _OSI with a WinXP string or - * later (meaning that the BIOS itelf is post-XP.) + * ports are only illegal if the BIOS calls _OSI with nothing newer than + * the specific _OSI strings. * * This provides ACPICA with the desired port protections and * Microsoft compatibility. @@ -301,8 +301,8 @@ AcpiHwValidateIoRequest ( if ((Address <= PortInfo->End) && (LastAddress >= PortInfo->Start)) { /* Port illegality may depend on the _OSI calls made by the BIOS */ - - if (AcpiGbl_OsiData >= PortInfo->OsiDependency) + if (PortInfo->OsiDependency == ACPI_ALWAYS_ILLEGAL || + AcpiGbl_OsiData == PortInfo->OsiDependency) { ACPI_DEBUG_PRINT ((ACPI_DB_VALUES, "Denied AML access to port 0x%8.8X%8.8X/%X (%s 0x%.4X-0x%.4X)\n", |