mirror of https://github.com/acidanthera/audk.git
b59e2427c2
If the current PCI configuration requires no resources to be allocated at
all (i.e., unpopulated bus), the PCI enumeration code creates a single
ACPI_ADDRESS_SPACE_DESCRIPTOR memory descriptor with all fields cleared.
This is rejected by the SubmitResources() implementation of the generic
PciHostBridgeDxe in the following way:
PciHostBridge: SubmitResources for PcieRoot(0x0)
Mem: Granularity/SpecificFlag = 0 / 00
Length/Alignment = 0x0 / 0x0
PciBus: HostBridge->SubmitResources() - Invalid Parameter
ASSERT_EFI_ERROR (Status = Invalid Parameter)
ASSERT [PciBusDxe] .../PciBusDxe/PciLib.c(561): !EFI_ERROR (Status)
So instead, create the empty configuration as a single entry of type
EFI_ACPI_END_TAG_DESCRIPTOR.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
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||
|---|---|---|
| .. | ||
| ComponentName.c | ||
| ComponentName.h | ||
| PciBus.c | ||
| PciBus.h | ||
| PciBusDxe.inf | ||
| PciBusDxe.uni | ||
| PciBusDxeExtra.uni | ||
| PciCommand.c | ||
| PciCommand.h | ||
| PciDeviceSupport.c | ||
| PciDeviceSupport.h | ||
| PciDriverOverride.c | ||
| PciDriverOverride.h | ||
| PciEnumerator.c | ||
| PciEnumerator.h | ||
| PciEnumeratorSupport.c | ||
| PciEnumeratorSupport.h | ||
| PciHotPlugSupport.c | ||
| PciHotPlugSupport.h | ||
| PciIo.c | ||
| PciIo.h | ||
| PciLib.c | ||
| PciLib.h | ||
| PciOptionRomSupport.c | ||
| PciOptionRomSupport.h | ||
| PciPowerManagement.c | ||
| PciPowerManagement.h | ||
| PciResourceSupport.c | ||
| PciResourceSupport.h | ||
| PciRomTable.c | ||
| PciRomTable.h | ||