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IntelFsp2Pkg: Support FSP private temporary memory.

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REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3153

In FSP the temporary memory provided by bootloader typically will be
totally given to PeiCore as Heap, but in some cases FSP may have to
reserve some more temporary memory for private usage.

This commit adds this flexibility for FSP to reserve some
temporary memory before giving them to PeiCore.

Cc: Maurice Ma <maurice.ma@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Signed-off-by: Chasel Chiu <chasel.chiu@intel.com>
Reviewed-by: Nate DeSimone <nathaniel.l.desimone@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
This commit is contained in:
Chasel Chiu
2021-01-05 16:55:25 +08:00
committed by mergify[bot]
parent 7785b38ac9
commit 379e5098a4
3 changed files with 15 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
IntelFsp2Pkg/FspSecCore/SecMain.c
View File

@@ -1,6 +1,6 @@
/** @file
Copyright (c) 2014 - 2020, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2014 - 2021, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@@ -150,15 +150,18 @@ SecStartup (
SecCoreData.BootFirmwareVolumeBase = BootFirmwareVolume;
SecCoreData.BootFirmwareVolumeSize = (UINT32)((EFI_FIRMWARE_VOLUME_HEADER *)BootFirmwareVolume)->FvLength;
SecCoreData.TemporaryRamBase = (VOID*)(UINTN) TempRamBase;
//
// Support FSP reserved temporary memory from the whole temporary memory provided by bootloader.
// FSP reserved temporary memory will not be given to PeiCore.
//
SecCoreData.TemporaryRamBase = (UINT8 *)(UINTN) TempRamBase + PcdGet32 (PcdFspPrivateTemporaryRamSize);
SecCoreData.TemporaryRamSize = SizeOfRam - PcdGet32 (PcdFspPrivateTemporaryRamSize);
if (PcdGet8 (PcdFspHeapSizePercentage) == 0) {
SecCoreData.TemporaryRamSize = SizeOfRam; // stack size that is going to be copied to the permanent memory
SecCoreData.PeiTemporaryRamBase = SecCoreData.TemporaryRamBase;
SecCoreData.PeiTemporaryRamSize = SecCoreData.TemporaryRamSize;
SecCoreData.StackBase = (VOID *)GetFspEntryStack(); // Share the same boot loader stack
SecCoreData.StackSize = 0;
} else {
SecCoreData.TemporaryRamSize = SizeOfRam;
SecCoreData.PeiTemporaryRamBase = SecCoreData.TemporaryRamBase;
SecCoreData.PeiTemporaryRamSize = SecCoreData.TemporaryRamSize * PcdGet8 (PcdFspHeapSizePercentage) / 100;
SecCoreData.StackBase = (VOID*)(UINTN)((UINTN)SecCoreData.TemporaryRamBase + SecCoreData.PeiTemporaryRamSize);