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UefiPayloadPkg: Support variable size MMCONF space 

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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
UefiPayloadPkg/BlSupportDxe/BlSupportDxe.c
View File

@ -155,13 +155,15 @@ BlDxeEntryPoint (
}
//
// Set PcdPciExpressBaseAddress by HOB info
// Set PcdPciExpressBaseAddress and PcdPciExpressBaseSize by HOB info
//
GuidHob = GetFirstGuidHob (&gUefiAcpiBoardInfoGuid);
if (GuidHob != NULL) {
AcpiBoardInfo = (ACPI_BOARD_INFO *)GET_GUID_HOB_DATA (GuidHob);
Status = PcdSet64S (PcdPciExpressBaseAddress, AcpiBoardInfo->PcieBaseAddress);
ASSERT_EFI_ERROR (Status);
Status = PcdSet64S (PcdPciExpressBaseSize, AcpiBoardInfo->PcieBaseSize);
ASSERT_EFI_ERROR (Status);
}
return EFI_SUCCESS;

1
UefiPayloadPkg/BlSupportDxe/BlSupportDxe.inf
View File

@ -54,6 +54,7 @@
gEfiMdeModulePkgTokenSpaceGuid.PcdSetupVideoHorizontalResolution
gEfiMdeModulePkgTokenSpaceGuid.PcdSetupVideoVerticalResolution
gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress
gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseSize
[Depex]
TRUE

1
UefiPayloadPkg/UefiPayloadPkgIa32X64.dsc
View File

@ -365,6 +365,7 @@
gEfiMdeModulePkgTokenSpaceGuid.PcdConOutRow|31
gEfiMdeModulePkgTokenSpaceGuid.PcdConOutColumn|100
gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress|0
gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseSize|0
################################################################################
#