Hi,

0xE0000000 is hard-coded in the DSDT for both piix and q35 as below.
If the range is determined dynamically, the area also needs to be
updated somehow dynamically.

...
             Name (_CRS, ResourceTemplate ()
...
                 DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, 
NonCacheable, ReadWrite,
                     0x00000000,         // Address Space Granularity
                     0xE0000000,         // Address Range Minimum
                     0xFEBFFFFF,         // Address Range Maximum
                     0x00000000,         // Address Translation Offset
                     0x1EC00000,         // Address Length
                     ,, , AddressRangeMemory, TypeStatic)

Uhm, indeed. I know next to nothing about ACPI though. Ideas anyone how this could be done?

cheers,
  Gerd

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