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UefiPayloadPkg: Support variable size MMCONF space

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The default size is still 256MiB, but will be overwritten by
UefiPayloadPkg with the real MMCONF size.

e.g.: On embedded AMD platforms the MMCONF window size is usually
      only 64MiB.

Fixes crash on platforms not exposing 256 buses.
Tested on:
* AMD Stoney Ridge

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Signed-off-by: Marcello Sylvester Bauer <marcello.bauer@9elements.com>
Cc: Patrick Rudolph <patrick.rudolph@9elements.com>
Cc: Christian Walter <christian.walter@9elements.com>
Cc: Maurice Ma <maurice.ma@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Benjamin You <benjamin.you@intel.com>
Reviewed-by: Guo Dong <guo.dong@intel.com>
This commit is contained in:
Marcello Sylvester Bauer
2020-07-22 11:00:29 +02:00
committed by mergify[bot]
parent 5c06585528
commit 8028b2907e
3 changed files with 5 additions and 1 deletions
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1
UefiPayloadPkg/BlSupportDxe/BlSupportDxe.inf
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@@ -54,6 +54,7 @@
gEfiMdeModulePkgTokenSpaceGuid.PcdSetupVideoHorizontalResolution
gEfiMdeModulePkgTokenSpaceGuid.PcdSetupVideoVerticalResolution
gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress
gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseSize
[Depex]
TRUE