Questions about SubmitResources()

Questions about SubmitResources()

[Tiger Liu]

Hi, experts:
I have a question about PciHostBridge’s SubmitResources() function.

For example:

1.      PciBus driver scanned a pci bus, found no pci devices needed resource, such as : MMIO ranges

Then, Mem32Bridge->Length:0x0, Mem32Bridge->Alignment:0Xfffff , and AddrSpaceGranularity = 0

Then call SubmitResources function, and in this function:

               ……

               /// It seems code here will cause system abnormal. (because AddrSpaceGranularity = 0)

      if (Ptr->AddrSpaceGranularity != 32 && Ptr->AddrSpaceGranularity != 64) {

            DEBUG((EFI_D_INFO, "BadAddrSpaceGranularity:%d\n", Ptr->AddrSpaceGranularity));

            return EFI_INVALID_PARAMETER;

          }

Thanks


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