543add1d41
Changes to support spec changes 1. Remove usage of Pcd. 2. Change code to validate the Temporary Ram size input. 3. Consume the input saved in YMM Register Cc: Sai Chaganty <rangasai.v.chaganty@intel.com> Cc: Nate DeSimone <nathaniel.l.desimone@intel.com> Cc: Chiu Chasel <chasel.chiu@intel.com> Cc: Duggapu Chinni B <chinni.b.duggapu@intel.com> Cc: Ni Ray <ray.ni@intel.com> Signed-off-by: Duggapu Chinni B <chinni.b.duggapu@intel.com> Reviewed-by: Chiu Chasel <chasel.chiu@intel.com> Reviewed-by: Nate DeSimone <nathaniel.l.desimone@intel.com>
160 lines
4.3 KiB
C
160 lines
4.3 KiB
C
/** @file
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Copyright (c) 2014 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <PiPei.h>
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#include <Register/Intel/Msr.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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{
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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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//
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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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{
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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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/**
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Calculate TemporaryRam Size using Base address.
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@param[in] TemporaryRamBase the address of target memory
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@param[out] TemporaryRamSize the size of target memory
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**/
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VOID
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EFIAPI
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ReadTemporaryRamSize (
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IN UINT32 TemporaryRamBase,
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OUT UINT32 *TemporaryRamSize
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)
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{
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MSR_IA32_MTRRCAP_REGISTER Msr;
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UINT32 MsrNum;
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UINT32 MsrNumEnd;
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if (TemporaryRamBase == 0) {
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return;
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}
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*TemporaryRamSize = 0;
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Msr.Uint64 = AsmReadMsr64 (MSR_IA32_MTRRCAP);
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MsrNumEnd = MSR_IA32_MTRR_PHYSBASE0 + (2 * (Msr.Bits.VCNT));
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for (MsrNum = MSR_IA32_MTRR_PHYSBASE0; MsrNum < MsrNumEnd; MsrNum += 2) {
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if ((AsmReadMsr64 (MsrNum+1) & BIT11) != 0 ) {
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if (TemporaryRamBase == (AsmReadMsr64 (MsrNum) & 0xFFFFF000)) {
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*TemporaryRamSize = (~(AsmReadMsr64 (MsrNum + 1) & 0xFFFFF000) + 1);
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break;
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}
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}
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}
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return;
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}
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