[edk2-devel] [PATCH v3 1/3] UefiPayloadPkg: Store the size of the MMCONF window

[Marcello Sylvester Bauer]

From: Patrick Rudolph <patrick.rudolph at 9elements.com>

Store the real size of the Pcie Memory Mapped Address Space.
This change is necessary to support variable size of MMCONF spaces.

Signed-off-by: Patrick Rudolph <patrick.rudolph at 9elements.com>
Signed-off-by: Marcello Sylvester Bauer <marcello.bauer at 9elements.com>
Cc: Patrick Rudolph <patrick.rudolph at 9elements.com>
Cc: Christian Walter <christian.walter at 9elements.com>
Cc: Maurice Ma <maurice.ma at intel.com>
Cc: Guo Dong <guo.dong at intel.com>
Cc: Benjamin You <benjamin.you at intel.com>
---
 UefiPayloadPkg/Include/Guid/AcpiBoardInfoGuid.h | 1 +
 UefiPayloadPkg/BlSupportPei/BlSupportPei.c      | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/UefiPayloadPkg/Include/Guid/AcpiBoardInfoGuid.h b/UefiPayloadPkg/Include/Guid/AcpiBoardInfoGuid.h
index fe783fe5e14c..043b748ae4a9 100644
--- a/UefiPayloadPkg/Include/Guid/AcpiBoardInfoGuid.h
+++ b/UefiPayloadPkg/Include/Guid/AcpiBoardInfoGuid.h
@@ -24,6 +24,7 @@ typedef struct {
   UINT64             PmTimerRegBase;
   UINT64             ResetRegAddress;
   UINT64             PcieBaseAddress;
+  UINT64             PcieBaseSize;
 } ACPI_BOARD_INFO;
 
 #endif
diff --git a/UefiPayloadPkg/BlSupportPei/BlSupportPei.c b/UefiPayloadPkg/BlSupportPei/BlSupportPei.c
index 22972453117a..a7e99f9ec6de 100644
--- a/UefiPayloadPkg/BlSupportPei/BlSupportPei.c
+++ b/UefiPayloadPkg/BlSupportPei/BlSupportPei.c
@@ -240,8 +240,10 @@ Done:
   if (MmCfgHdr != NULL) {
     MmCfgBase = (EFI_ACPI_MEMORY_MAPPED_ENHANCED_CONFIGURATION_SPACE_BASE_ADDRESS_ALLOCATION_STRUCTURE *)((UINT8*) MmCfgHdr + sizeof (*MmCfgHdr));
     AcpiBoardInfo->PcieBaseAddress = MmCfgBase->BaseAddress;
+    AcpiBoardInfo->PcieBaseSize = (MmCfgBase->EndBusNumber + 1 - MmCfgBase->StartBusNumber) * 4096 * 32 * 8;
   } else {
     AcpiBoardInfo->PcieBaseAddress = 0;
+    AcpiBoardInfo->PcieBaseSize = 0;
   }
   DEBUG ((DEBUG_INFO, "PmCtrl  Reg 0x%lx\n",  AcpiBoardInfo->PmCtrlRegBase));
   DEBUG ((DEBUG_INFO, "PmTimer Reg 0x%lx\n",  AcpiBoardInfo->PmTimerRegBase));
@@ -250,6 +252,7 @@ Done:
   DEBUG ((DEBUG_INFO, "PmEvt   Reg 0x%lx\n",  AcpiBoardInfo->PmEvtBase));
   DEBUG ((DEBUG_INFO, "PmGpeEn Reg 0x%lx\n",  AcpiBoardInfo->PmGpeEnBase));
   DEBUG ((DEBUG_INFO, "PcieBaseAddr 0x%lx\n", AcpiBoardInfo->PcieBaseAddress));
+  DEBUG ((DEBUG_INFO, "PcieBaseSize 0x%lx\n", AcpiBoardInfo->PcieBaseSize));
 
   //
   // Verify values for proper operation
-- 
2.27.0


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