From 06b07ce37c50290822f44bb7efe67dea9c72167b Mon Sep 17 00:00:00 2001 From: jyao1 Date: Wed, 3 Mar 2010 02:04:37 +0000 Subject: [PATCH] Change the minimal SMM core size from 1MB to 256KB-4K. Some platforms only enable 1MB, after reserve 1 page for SMM S3. There is at most 1MB-4KB for SMM core. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10158 6f19259b-4bc3-4df7-8a09-765794883524 --- MdeModulePkg/Core/PiSmmCore/PiSmmIpl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/MdeModulePkg/Core/PiSmmCore/PiSmmIpl.c b/MdeModulePkg/Core/PiSmmCore/PiSmmIpl.c index afb6d15bcd..1029a07779 100644 --- a/MdeModulePkg/Core/PiSmmCore/PiSmmIpl.c +++ b/MdeModulePkg/Core/PiSmmCore/PiSmmIpl.c @@ -920,10 +920,10 @@ SmmIplEntry ( } // - // Find the largest SMRAM range between 1MB and 4GB that is at least 1MB in size + // Find the largest SMRAM range between 1MB and 4GB that is at least 256KB - 4K in size // mCurrentSmramRange = NULL; - for (Index = 0, MaxSize = SIZE_1MB; Index < gSmmCorePrivate->SmramRangeCount; Index++) { + for (Index = 0, MaxSize = SIZE_256KB - EFI_PAGE_SIZE; Index < gSmmCorePrivate->SmramRangeCount; Index++) { if (gSmmCorePrivate->SmramRanges[Index].CpuStart >= BASE_1MB) { if ((gSmmCorePrivate->SmramRanges[Index].CpuStart + gSmmCorePrivate->SmramRanges[Index].PhysicalSize) <= BASE_4GB) { if (gSmmCorePrivate->SmramRanges[Index].PhysicalSize >= MaxSize) { -- 2.39.2