diff options
| -rw-r--r-- | IntelFrameworkModulePkg/Bus/Isa/IsaIoDxe/IsaIo.c | 56 |
1 files changed, 32 insertions, 24 deletions
diff --git a/IntelFrameworkModulePkg/Bus/Isa/IsaIoDxe/IsaIo.c b/IntelFrameworkModulePkg/Bus/Isa/IsaIoDxe/IsaIo.c index 9058d7849e..ab2a9a5f92 100644 --- a/IntelFrameworkModulePkg/Bus/Isa/IsaIoDxe/IsaIo.c +++ b/IntelFrameworkModulePkg/Bus/Isa/IsaIoDxe/IsaIo.c @@ -327,24 +327,28 @@ AcpiResourceToIsaResource ( case ACPI_IO_PORT_DESCRIPTOR:
Io = (EFI_ACPI_IO_PORT_DESCRIPTOR *) AcpiResource.SmallHeader;
- if (IsaResource != NULL) {
- IsaResource[Count].Type = EfiIsaAcpiResourceIo;
- IsaResource[Count].Attribute = IsaIoAttribute (Io->Information);
- IsaResource[Count].StartRange = Io->BaseAddressMin;
- IsaResource[Count].EndRange = Io->BaseAddressMin + Io->Length - 1;
+ if (Io->Length != 0) {
+ if (IsaResource != NULL) {
+ IsaResource[Count].Type = EfiIsaAcpiResourceIo;
+ IsaResource[Count].Attribute = IsaIoAttribute (Io->Information);
+ IsaResource[Count].StartRange = Io->BaseAddressMin;
+ IsaResource[Count].EndRange = Io->BaseAddressMin + Io->Length - 1;
+ }
+ Count ++;
}
- Count ++;
break;
case ACPI_FIXED_LOCATION_IO_PORT_DESCRIPTOR:
FixedIo = (EFI_ACPI_FIXED_LOCATION_IO_PORT_DESCRIPTOR *) AcpiResource.SmallHeader;
- if (IsaResource != NULL) {
- IsaResource[Count].Type = EfiIsaAcpiResourceIo;
- IsaResource[Count].Attribute = EFI_ISA_ACPI_IO_DECODE_10_BITS;
- IsaResource[Count].StartRange = FixedIo->BaseAddress;
- IsaResource[Count].EndRange = FixedIo->BaseAddress + FixedIo->Length - 1;
+ if (FixedIo->Length != 0) {
+ if (IsaResource != NULL) {
+ IsaResource[Count].Type = EfiIsaAcpiResourceIo;
+ IsaResource[Count].Attribute = EFI_ISA_ACPI_IO_DECODE_10_BITS;
+ IsaResource[Count].StartRange = FixedIo->BaseAddress;
+ IsaResource[Count].EndRange = FixedIo->BaseAddress + FixedIo->Length - 1;
+ }
+ Count ++;
}
- Count ++;
break;
case ACPI_IRQ_DESCRIPTOR:
@@ -377,24 +381,28 @@ AcpiResourceToIsaResource ( case ACPI_32_BIT_MEMORY_RANGE_DESCRIPTOR:
Memory = (EFI_ACPI_32_BIT_MEMORY_RANGE_DESCRIPTOR *) AcpiResource.LargeHeader;
- if (IsaResource != NULL) {
- IsaResource[Count].Type = EfiIsaAcpiResourceMemory;
- IsaResource[Count].Attribute = IsaMemoryAttribute (Memory->Information);
- IsaResource[Count].StartRange = Memory->BaseAddressMin;
- IsaResource[Count].EndRange = Memory->BaseAddressMin + Memory->Length - 1;
+ if (Memory->Length != 0) {
+ if (IsaResource != NULL) {
+ IsaResource[Count].Type = EfiIsaAcpiResourceMemory;
+ IsaResource[Count].Attribute = IsaMemoryAttribute (Memory->Information);
+ IsaResource[Count].StartRange = Memory->BaseAddressMin;
+ IsaResource[Count].EndRange = Memory->BaseAddressMin + Memory->Length - 1;
+ }
+ Count ++;
}
- Count ++;
break;
case ACPI_32_BIT_FIXED_MEMORY_RANGE_DESCRIPTOR:
FixedMemory = (EFI_ACPI_32_BIT_FIXED_MEMORY_RANGE_DESCRIPTOR *) AcpiResource.LargeHeader;
- if (IsaResource != NULL) {
- IsaResource[Count].Type = EfiIsaAcpiResourceMemory;
- IsaResource[Count].Attribute = IsaMemoryAttribute (FixedMemory->Information);
- IsaResource[Count].StartRange = FixedMemory->BaseAddress;
- IsaResource[Count].EndRange = FixedMemory->BaseAddress + FixedMemory->Length - 1;
+ if (FixedMemory->Length != 0) {
+ if (IsaResource != NULL) {
+ IsaResource[Count].Type = EfiIsaAcpiResourceMemory;
+ IsaResource[Count].Attribute = IsaMemoryAttribute (FixedMemory->Information);
+ IsaResource[Count].StartRange = FixedMemory->BaseAddress;
+ IsaResource[Count].EndRange = FixedMemory->BaseAddress + FixedMemory->Length - 1;
+ }
+ Count ++;
}
- Count ++;
break;
case ACPI_END_TAG_DESCRIPTOR:
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