ovmf/ovmf-Revert-OvmfPkg-PlatformInitLib-dynamic-mmio-window-s.patch

From 5b3a40038886774228826b42c9aa3c9645a799a9 Mon Sep 17 00:00:00 2001
From: "Lee, Chun-Yi" <jlee@suse.com>
Date: Wed, 15 Mar 2023 17:21:25 +0800
Subject: [PATCH 6/6] Revert "OvmfPkg/PlatformInitLib: dynamic mmio window
 size"

This reverts commit ecb778d0ac62560aa172786ba19521f27bc3f650.
---
 OvmfPkg/Library/PlatformInitLib/MemDetect.c | 28 ---------------------
 1 file changed, 28 deletions(-)

diff --git a/OvmfPkg/Library/PlatformInitLib/MemDetect.c b/OvmfPkg/Library/PlatformInitLib/MemDetect.c
index 882805269b..0ac7d5b967 100644
--- a/OvmfPkg/Library/PlatformInitLib/MemDetect.c
+++ b/OvmfPkg/Library/PlatformInitLib/MemDetect.c
@@ -625,33 +625,6 @@ PlatformAddressWidthFromCpuid (
   }
 }
 
-VOID
-EFIAPI
-PlatformDynamicMmioWindow (
-  IN OUT EFI_HOB_PLATFORM_INFO  *PlatformInfoHob
-  )
-{
-  UINT64  AddrSpace, MmioSpace;
-
-  AddrSpace = LShiftU64 (1, PlatformInfoHob->PhysMemAddressWidth);
-  MmioSpace = LShiftU64 (1, PlatformInfoHob->PhysMemAddressWidth - 3);
-
-  if ((PlatformInfoHob->PcdPciMmio64Size < MmioSpace) &&
-      (PlatformInfoHob->PcdPciMmio64Base + MmioSpace < AddrSpace))
-  {
-    DEBUG ((DEBUG_INFO, "%a: using dynamic mmio window\n", __func__));
-    DEBUG ((DEBUG_INFO, "%a:   Addr Space 0x%Lx (%Ld GB)\n", __func__, AddrSpace, RShiftU64 (AddrSpace, 30)));
-    DEBUG ((DEBUG_INFO, "%a:   MMIO Space 0x%Lx (%Ld GB)\n", __func__, MmioSpace, RShiftU64 (MmioSpace, 30)));
-    PlatformInfoHob->PcdPciMmio64Size = MmioSpace;
-    PlatformInfoHob->PcdPciMmio64Base = AddrSpace - MmioSpace;
-  } else {
-    DEBUG ((DEBUG_INFO, "%a: using classic mmio window\n", __func__));
-  }
-
-  DEBUG ((DEBUG_INFO, "%a:   Pci64 Base 0x%Lx\n", __func__, PlatformInfoHob->PcdPciMmio64Base));
-  DEBUG ((DEBUG_INFO, "%a:   Pci64 Size 0x%Lx\n", __func__, PlatformInfoHob->PcdPciMmio64Size));
-}
-
 /**
   Iterate over the PCI host bridges resources information optionally provided
   in fw-cfg and find the highest address contained in the PCI MMIO windows. If
@@ -813,7 +786,6 @@ PlatformAddressWidthInitialization (
   if (PlatformInfoHob->PhysMemAddressWidth != 0) {
     // physical address width is known
     PlatformInfoHob->FirstNonAddress = FirstNonAddress;
-    PlatformDynamicMmioWindow (PlatformInfoHob);
     return;
   }
 
-- 
2.35.3