mirror of https://github.com/acidanthera/audk.git
533 lines
11 KiB
C
533 lines
11 KiB
C
/** @file
|
|
|
|
Copyright (c) 2014 - 2016, Intel Corporation. All rights reserved.<BR>
|
|
This program and the accompanying materials
|
|
are licensed and made available under the terms and conditions of the BSD License
|
|
which accompanies this distribution. The full text of the license may be found at
|
|
http://opensource.org/licenses/bsd-license.php.
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
**/
|
|
|
|
#include <PiPei.h>
|
|
#include <Library/BaseLib.h>
|
|
#include <Library/DebugLib.h>
|
|
#include <Library/PcdLib.h>
|
|
#include <FspGlobalData.h>
|
|
#include <FspEas.h>
|
|
#include <Library/FspSwitchStackLib.h>
|
|
|
|
#pragma pack(1)
|
|
|
|
//
|
|
// API Parameter +0x34
|
|
// API return address +0x30
|
|
//
|
|
// push FspInfoHeader +0x2C
|
|
// pushfd +0x28
|
|
// cli
|
|
// pushad +0x24
|
|
// sub esp, 8 +0x00
|
|
// sidt fword ptr [esp]
|
|
//
|
|
typedef struct {
|
|
UINT16 IdtrLimit;
|
|
UINT32 IdtrBase;
|
|
UINT16 Reserved;
|
|
UINT32 Edi;
|
|
UINT32 Esi;
|
|
UINT32 Ebp;
|
|
UINT32 Esp;
|
|
UINT32 Ebx;
|
|
UINT32 Edx;
|
|
UINT32 Ecx;
|
|
UINT32 Eax;
|
|
UINT16 Flags[2];
|
|
UINT32 FspInfoHeader;
|
|
UINT32 ApiRet;
|
|
UINT32 ApiParam[2];
|
|
} CONTEXT_STACK;
|
|
|
|
#define CONTEXT_STACK_OFFSET(x) (UINT32)&((CONTEXT_STACK *)(UINTN)0)->x
|
|
|
|
#pragma pack()
|
|
|
|
/**
|
|
This function sets the FSP global data pointer.
|
|
|
|
@param[in] FspData FSP global data pointer.
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
SetFspGlobalDataPointer (
|
|
IN FSP_GLOBAL_DATA *FspData
|
|
)
|
|
{
|
|
ASSERT (FspData != NULL);
|
|
*((volatile UINT32 *)(UINTN)PcdGet32(PcdGlobalDataPointerAddress)) = (UINT32)(UINTN)FspData;
|
|
}
|
|
|
|
/**
|
|
This function gets the FSP global data pointer.
|
|
|
|
**/
|
|
FSP_GLOBAL_DATA *
|
|
EFIAPI
|
|
GetFspGlobalDataPointer (
|
|
VOID
|
|
)
|
|
{
|
|
FSP_GLOBAL_DATA *FspData;
|
|
|
|
FspData = *(FSP_GLOBAL_DATA **)(UINTN)PcdGet32(PcdGlobalDataPointerAddress);
|
|
return FspData;
|
|
}
|
|
|
|
/**
|
|
This function gets back the FSP API first parameter passed by the bootlaoder.
|
|
|
|
@retval ApiParameter FSP API first parameter passed by the bootlaoder.
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
GetFspApiParameter (
|
|
VOID
|
|
)
|
|
{
|
|
FSP_GLOBAL_DATA *FspData;
|
|
|
|
FspData = GetFspGlobalDataPointer ();
|
|
return *(UINT32 *)(UINTN)(FspData->CoreStack + CONTEXT_STACK_OFFSET(ApiParam[0]));
|
|
}
|
|
|
|
/**
|
|
This function gets back the FSP API second parameter passed by the bootlaoder.
|
|
|
|
@retval ApiParameter FSP API second parameter passed by the bootlaoder.
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
GetFspApiParameter2 (
|
|
VOID
|
|
)
|
|
{
|
|
FSP_GLOBAL_DATA *FspData;
|
|
|
|
FspData = GetFspGlobalDataPointer ();
|
|
return *(UINT32 *)(UINTN)(FspData->CoreStack + CONTEXT_STACK_OFFSET(ApiParam[1]));
|
|
}
|
|
|
|
/**
|
|
This function sets the FSP API parameter in the stack.
|
|
|
|
@param[in] Value New parameter value.
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
SetFspApiParameter (
|
|
IN UINT32 Value
|
|
)
|
|
{
|
|
FSP_GLOBAL_DATA *FspData;
|
|
|
|
FspData = GetFspGlobalDataPointer ();
|
|
*(UINT32 *)(UINTN)(FspData->CoreStack + CONTEXT_STACK_OFFSET(ApiParam)) = Value;
|
|
}
|
|
|
|
/**
|
|
This function set the API status code returned to the BootLoader.
|
|
|
|
@param[in] ReturnStatus Status code to return.
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
SetFspApiReturnStatus (
|
|
IN UINT32 ReturnStatus
|
|
)
|
|
{
|
|
FSP_GLOBAL_DATA *FspData;
|
|
|
|
FspData = GetFspGlobalDataPointer ();
|
|
*(UINT32 *)(UINTN)(FspData->CoreStack + CONTEXT_STACK_OFFSET(Eax)) = ReturnStatus;
|
|
}
|
|
|
|
/**
|
|
This function sets the context switching stack to a new stack frame.
|
|
|
|
@param[in] NewStackTop New core stack to be set.
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
SetFspCoreStackPointer (
|
|
IN VOID *NewStackTop
|
|
)
|
|
{
|
|
FSP_GLOBAL_DATA *FspData;
|
|
UINT32 *OldStack;
|
|
UINT32 *NewStack;
|
|
UINT32 StackContextLen;
|
|
|
|
FspData = GetFspGlobalDataPointer ();
|
|
StackContextLen = sizeof(CONTEXT_STACK) / sizeof(UINT32);
|
|
|
|
//
|
|
// Reserve space for the ContinuationFunc two parameters
|
|
//
|
|
OldStack = (UINT32 *)FspData->CoreStack;
|
|
NewStack = (UINT32 *)NewStackTop - StackContextLen - 2;
|
|
FspData->CoreStack = (UINT32)NewStack;
|
|
while (StackContextLen-- != 0) {
|
|
*NewStack++ = *OldStack++;
|
|
}
|
|
}
|
|
|
|
/**
|
|
This function sets the platform specific data pointer.
|
|
|
|
@param[in] PlatformData FSP platform specific data pointer.
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
SetFspPlatformDataPointer (
|
|
IN VOID *PlatformData
|
|
)
|
|
{
|
|
FSP_GLOBAL_DATA *FspData;
|
|
|
|
FspData = GetFspGlobalDataPointer ();
|
|
FspData->PlatformData.DataPtr = PlatformData;
|
|
}
|
|
|
|
|
|
/**
|
|
This function gets the platform specific data pointer.
|
|
|
|
@param[in] PlatformData FSP platform specific data pointer.
|
|
|
|
**/
|
|
VOID *
|
|
EFIAPI
|
|
GetFspPlatformDataPointer (
|
|
VOID
|
|
)
|
|
{
|
|
FSP_GLOBAL_DATA *FspData;
|
|
|
|
FspData = GetFspGlobalDataPointer ();
|
|
return FspData->PlatformData.DataPtr;
|
|
}
|
|
|
|
|
|
/**
|
|
This function sets the UPD data pointer.
|
|
|
|
@param[in] UpdDataPtr UPD data pointer.
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
SetFspUpdDataPointer (
|
|
IN VOID *UpdDataPtr
|
|
)
|
|
{
|
|
FSP_GLOBAL_DATA *FspData;
|
|
|
|
//
|
|
// Get the FSP Global Data Pointer
|
|
//
|
|
FspData = GetFspGlobalDataPointer ();
|
|
|
|
//
|
|
// Set the UPD pointer.
|
|
//
|
|
FspData->UpdDataPtr = UpdDataPtr;
|
|
}
|
|
|
|
/**
|
|
This function gets the UPD data pointer.
|
|
|
|
@return UpdDataPtr UPD data pointer.
|
|
**/
|
|
VOID *
|
|
EFIAPI
|
|
GetFspUpdDataPointer (
|
|
VOID
|
|
)
|
|
{
|
|
FSP_GLOBAL_DATA *FspData;
|
|
|
|
FspData = GetFspGlobalDataPointer ();
|
|
return FspData->UpdDataPtr;
|
|
}
|
|
|
|
|
|
/**
|
|
This function sets the FspMemoryInit UPD data pointer.
|
|
|
|
@param[in] MemoryInitUpdPtr FspMemoryInit UPD data pointer.
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
SetFspMemoryInitUpdDataPointer (
|
|
IN VOID *MemoryInitUpdPtr
|
|
)
|
|
{
|
|
FSP_GLOBAL_DATA *FspData;
|
|
|
|
//
|
|
// Get the FSP Global Data Pointer
|
|
//
|
|
FspData = GetFspGlobalDataPointer ();
|
|
|
|
//
|
|
// Set the FspMemoryInit UPD pointer.
|
|
//
|
|
FspData->MemoryInitUpdPtr = MemoryInitUpdPtr;
|
|
}
|
|
|
|
/**
|
|
This function gets the FspMemoryInit UPD data pointer.
|
|
|
|
@return FspMemoryInit UPD data pointer.
|
|
**/
|
|
VOID *
|
|
EFIAPI
|
|
GetFspMemoryInitUpdDataPointer (
|
|
VOID
|
|
)
|
|
{
|
|
FSP_GLOBAL_DATA *FspData;
|
|
|
|
FspData = GetFspGlobalDataPointer ();
|
|
return FspData->MemoryInitUpdPtr;
|
|
}
|
|
|
|
|
|
/**
|
|
This function sets the FspSiliconInit UPD data pointer.
|
|
|
|
@param[in] SiliconInitUpdPtr FspSiliconInit UPD data pointer.
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
SetFspSiliconInitUpdDataPointer (
|
|
IN VOID *SiliconInitUpdPtr
|
|
)
|
|
{
|
|
FSP_GLOBAL_DATA *FspData;
|
|
|
|
//
|
|
// Get the FSP Global Data Pointer
|
|
//
|
|
FspData = GetFspGlobalDataPointer ();
|
|
|
|
//
|
|
// Set the FspSiliconInit UPD data pointer.
|
|
//
|
|
FspData->SiliconInitUpdPtr = SiliconInitUpdPtr;
|
|
}
|
|
|
|
/**
|
|
This function gets the FspSiliconInit UPD data pointer.
|
|
|
|
@return FspSiliconInit UPD data pointer.
|
|
**/
|
|
VOID *
|
|
EFIAPI
|
|
GetFspSiliconInitUpdDataPointer (
|
|
VOID
|
|
)
|
|
{
|
|
FSP_GLOBAL_DATA *FspData;
|
|
|
|
FspData = GetFspGlobalDataPointer ();
|
|
return FspData->SiliconInitUpdPtr;
|
|
}
|
|
|
|
|
|
/**
|
|
Set FSP measurement point timestamp.
|
|
|
|
@param[in] Id Measurement point ID.
|
|
|
|
@return performance timestamp.
|
|
**/
|
|
UINT64
|
|
EFIAPI
|
|
SetFspMeasurePoint (
|
|
IN UINT8 Id
|
|
)
|
|
{
|
|
FSP_GLOBAL_DATA *FspData;
|
|
|
|
//
|
|
// Bit [55: 0] will be the timestamp
|
|
// Bit [63:56] will be the ID
|
|
//
|
|
FspData = GetFspGlobalDataPointer ();
|
|
if (FspData->PerfIdx < sizeof(FspData->PerfData) / sizeof(FspData->PerfData[0])) {
|
|
FspData->PerfData[FspData->PerfIdx] = AsmReadTsc ();
|
|
((UINT8 *)(&FspData->PerfData[FspData->PerfIdx]))[7] = Id;
|
|
}
|
|
|
|
return FspData->PerfData[(FspData->PerfIdx)++];
|
|
}
|
|
|
|
/**
|
|
This function gets the FSP info header pointer.
|
|
|
|
@retval FspInfoHeader FSP info header pointer
|
|
**/
|
|
FSP_INFO_HEADER *
|
|
EFIAPI
|
|
GetFspInfoHeader (
|
|
VOID
|
|
)
|
|
{
|
|
return GetFspGlobalDataPointer()->FspInfoHeader;
|
|
}
|
|
|
|
/**
|
|
This function sets the FSP info header pointer.
|
|
|
|
@param[in] FspInfoHeader FSP info header pointer
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
SetFspInfoHeader (
|
|
FSP_INFO_HEADER *FspInfoHeader
|
|
)
|
|
{
|
|
GetFspGlobalDataPointer()->FspInfoHeader = FspInfoHeader;
|
|
}
|
|
|
|
/**
|
|
This function gets the FSP info header pointer using the API stack context.
|
|
|
|
@retval FspInfoHeader FSP info header pointer using the API stack context
|
|
**/
|
|
FSP_INFO_HEADER *
|
|
EFIAPI
|
|
GetFspInfoHeaderFromApiContext (
|
|
VOID
|
|
)
|
|
{
|
|
FSP_GLOBAL_DATA *FspData;
|
|
|
|
FspData = GetFspGlobalDataPointer ();
|
|
return (FSP_INFO_HEADER *)(*(UINT32 *)(UINTN)(FspData->CoreStack + CONTEXT_STACK_OFFSET(FspInfoHeader)));
|
|
}
|
|
|
|
/**
|
|
This function gets the CfgRegion data pointer.
|
|
|
|
@return CfgRegion data pointer.
|
|
**/
|
|
VOID *
|
|
EFIAPI
|
|
GetFspCfgRegionDataPointer (
|
|
VOID
|
|
)
|
|
{
|
|
FSP_INFO_HEADER *FspInfoHeader;
|
|
|
|
FspInfoHeader = GetFspInfoHeader ();
|
|
return (VOID *)(FspInfoHeader->ImageBase + FspInfoHeader->CfgRegionOffset);
|
|
}
|
|
|
|
/**
|
|
This function gets FSP API calling index.
|
|
|
|
@retval API calling index
|
|
**/
|
|
UINT8
|
|
EFIAPI
|
|
GetFspApiCallingIndex (
|
|
VOID
|
|
)
|
|
{
|
|
return GetFspGlobalDataPointer()->ApiIdx;
|
|
}
|
|
|
|
/**
|
|
This function sets FSP API calling mode.
|
|
|
|
@param[in] Index API calling index
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
SetFspApiCallingIndex (
|
|
UINT8 Index
|
|
)
|
|
{
|
|
FSP_GLOBAL_DATA *FspData;
|
|
|
|
FspData = GetFspGlobalDataPointer ();
|
|
FspData->ApiIdx = Index;
|
|
}
|
|
|
|
/**
|
|
This function gets FSP Phase StatusCode.
|
|
|
|
@retval StatusCode
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
GetPhaseStatusCode (
|
|
VOID
|
|
)
|
|
{
|
|
return GetFspGlobalDataPointer()->StatusCode;
|
|
}
|
|
|
|
/**
|
|
This function sets FSP Phase StatusCode.
|
|
|
|
@param[in] Mode Phase StatusCode
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
SetPhaseStatusCode (
|
|
UINT32 StatusCode
|
|
)
|
|
{
|
|
FSP_GLOBAL_DATA *FspData;
|
|
|
|
FspData = GetFspGlobalDataPointer ();
|
|
FspData->StatusCode = StatusCode;
|
|
}
|
|
|
|
/**
|
|
This function updates the return status of the FSP API with requested reset type and returns to Boot Loader.
|
|
|
|
@param[in] FspResetType Reset type that needs to returned as API return status
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
FspApiReturnStatusReset (
|
|
IN UINT32 FspResetType
|
|
)
|
|
{
|
|
volatile BOOLEAN LoopUntilReset;
|
|
|
|
LoopUntilReset = TRUE;
|
|
DEBUG ((DEBUG_INFO, "FSP returning control to Bootloader with reset required return status %x\n",FspResetType));
|
|
///
|
|
/// Below code is not an infinite loop.The control will go back to API calling function in BootLoader each time BootLoader
|
|
/// calls the FSP API without honoring the reset request by FSP
|
|
///
|
|
do {
|
|
SetFspApiReturnStatus ((EFI_STATUS)FspResetType);
|
|
Pei2LoaderSwitchStack ();
|
|
DEBUG ((DEBUG_ERROR, "!!!ERROR: FSP has requested BootLoader for reset. But BootLoader has not honored the reset\n"));
|
|
DEBUG ((DEBUG_ERROR, "!!!ERROR: Please add support in BootLoader to honor the reset request from FSP\n"));
|
|
} while (LoopUntilReset);
|
|
}
|