35126af96c
In FSP2.0, Boot loader should migrate its temp ram before calling the tempramexit API to tear down the tempram. so, we don't need the function to migrate the BL TempRam in the IntelFsp2Pkg. Cc: Giri P Mudusuru <giri.p.mudusuru@intel.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Satya Yarlagadda <satya.p.yarlagadda@intel.com> Reviewed-by: Giri P Mudusuru <giri.p.mudusuru@intel.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
123 lines
3.8 KiB
C
123 lines
3.8 KiB
C
/** @file
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Copyright (c) 2014 - 2016, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <PiPei.h>
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#include <Library/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/DebugLib.h>
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#include <Library/PcdLib.h>
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#include <Library/HobLib.h>
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#include <Library/PeiServicesLib.h>
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#include <Library/FspCommonLib.h>
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#include <FspGlobalData.h>
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#include <FspEas.h>
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/**
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Get system memory resource descriptor by owner.
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@param[in] OwnerGuid resource owner guid
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**/
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EFI_HOB_RESOURCE_DESCRIPTOR *
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EFIAPI
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FspGetResourceDescriptorByOwner (
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IN EFI_GUID *OwnerGuid
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)
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{
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EFI_PEI_HOB_POINTERS Hob;
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//
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// Get the HOB list for processing
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//
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Hob.Raw = GetHobList ();
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//
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// Collect memory ranges
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//
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while (!END_OF_HOB_LIST (Hob)) {
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if (Hob.Header->HobType == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {
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if ((Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_MEMORY_RESERVED) && \
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(CompareGuid (&Hob.ResourceDescriptor->Owner, OwnerGuid))) {
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return Hob.ResourceDescriptor;
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}
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}
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Hob.Raw = GET_NEXT_HOB (Hob);
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}
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return NULL;
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}
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/**
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Get system memory from HOB.
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@param[in,out] LowMemoryLength less than 4G memory length
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@param[in,out] HighMemoryLength greater than 4G memory length
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**/
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VOID
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EFIAPI
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FspGetSystemMemorySize (
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IN OUT UINT64 *LowMemoryLength,
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IN OUT UINT64 *HighMemoryLength
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)
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{
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EFI_STATUS Status;
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EFI_BOOT_MODE BootMode;
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EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttribute;
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EFI_PEI_HOB_POINTERS Hob;
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ResourceAttribute = (
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EFI_RESOURCE_ATTRIBUTE_PRESENT |
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EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
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EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
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EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
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EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
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EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
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);
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Status = PeiServicesGetBootMode (&BootMode);
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ASSERT_EFI_ERROR (Status);
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if (BootMode != BOOT_ON_S3_RESUME) {
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ResourceAttribute |= EFI_RESOURCE_ATTRIBUTE_TESTED;
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}
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*HighMemoryLength = 0;
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*LowMemoryLength = SIZE_1MB;
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//
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// Get the HOB list for processing
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//
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Hob.Raw = GetHobList ();
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//
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// Collect memory ranges
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//
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while (!END_OF_HOB_LIST (Hob)) {
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if (Hob.Header->HobType == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {
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if ((Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) ||
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((Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_MEMORY_RESERVED) &&
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(Hob.ResourceDescriptor->ResourceAttribute == ResourceAttribute))) {
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//
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// Need memory above 1MB to be collected here
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//
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if (Hob.ResourceDescriptor->PhysicalStart >= BASE_1MB &&
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Hob.ResourceDescriptor->PhysicalStart < (EFI_PHYSICAL_ADDRESS) BASE_4GB) {
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*LowMemoryLength += (UINT64) (Hob.ResourceDescriptor->ResourceLength);
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} else if (Hob.ResourceDescriptor->PhysicalStart >= (EFI_PHYSICAL_ADDRESS) BASE_4GB) {
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*HighMemoryLength += (UINT64) (Hob.ResourceDescriptor->ResourceLength);
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}
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}
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}
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Hob.Raw = GET_NEXT_HOB (Hob);
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}
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}
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