Hello everyone,
I was trying to get my platform running and since I used MinPlatformPkg as my
base platform I used the
Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/PciHostBridgeLibSimple.inf
for the library of the
MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciHostBridgeDxe.inf component. the thing
was that my platform would execute through PciEnumerator then
PciHostBridgeResourceAllocator then would get stuck when calling the
NotifyPhase (PciResAlloc, EfiPciHostBridgeAllocateResources); So I checked the
switch case routine looking for the EfiPciHostBridgeAllocateResources literal
and I realized the "PciHostBridgeResourceConflict" is as following:
VOID
EFIAPI
PciHostBridgeResourceConflict (
EFI_HANDLE HostBridgeHandle,
VOID *Configuration
)
{
EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptor;
UINTN RootBridgeIndex;
DEBUG ((DEBUG_ERROR, "PciHostBridge: Resource conflict happens!\n"));
RootBridgeIndex = 0;
Descriptor = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *) Configuration;
while (Descriptor->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR) {
DEBUG ((DEBUG_ERROR, "RootBridge[%d]:\n", RootBridgeIndex++));
for (; Descriptor->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR; Descriptor++) {
ASSERT (Descriptor->ResType <
sizeof (mPciHostBridgeLibAcpiAddressSpaceTypeStr) / sizeof
(mPciHostBridgeLibAcpiAddressSpaceTypeStr[0])
);
DEBUG ((DEBUG_ERROR, " %s: Length/Alignment = 0x%lx / 0x%lx\n",
mPciHostBridgeLibAcpiAddressSpaceTypeStr[Descriptor->ResType],
Descriptor->AddrLen, Descriptor->AddrRangeMax));
if (Descriptor->ResType == ACPI_ADDRESS_SPACE_TYPE_MEM) {
DEBUG ((DEBUG_ERROR, " Granularity/SpecificFlag = %ld / %02x%s\n",
Descriptor->AddrSpaceGranularity, Descriptor->SpecificFlag,
((Descriptor->SpecificFlag &
EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_CACHEABLE_PREFETCHABLE) != 0) ? L"
(Prefetchable)" : L""
));
}
}
//
// Skip the END descriptor for root bridge
//
ASSERT (Descriptor->Desc == ACPI_END_TAG_DESCRIPTOR);
Descriptor = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)
((EFI_ACPI_END_TAG_DESCRIPTOR *) Descriptor + 1);
}
ASSERT (FALSE);}
So my question is what is going on with this line "ASSERT(FALSE)" must it stop
the platform from executing further? if so, why other libraries which define
this function don't have this line? I could simply comment it out but I would
rather get a sense of what's going on
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