Home | History | Annotate | Download | only in FspSecCore 
      1 /** @file
      2 
      3   Copyright (c) 2014 - 2016, Intel Corporation. All rights reserved.<BR>
      4   This program and the accompanying materials
      5   are licensed and made available under the terms and conditions of the BSD License
      6   which accompanies this distribution.  The full text of the license may be found at
      7   http://opensource.org/licenses/bsd-license.php.
      8 
      9   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
     10   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
     11 
     12 **/
     13 
     14 #ifndef _SEC_CORE_H_
     15 #define _SEC_CORE_H_
     16 
     17 
     18 #include <PiPei.h>
     19 #include <Ppi/TemporaryRamSupport.h>
     20 
     21 #include <Library/BaseLib.h>
     22 #include <Library/IoLib.h>
     23 #include <Library/DebugLib.h>
     24 #include <Library/PcdLib.h>
     25 #include <Library/BaseMemoryLib.h>
     26 #include <Library/PciCf8Lib.h>
     27 #include <Library/SerialPortLib.h>
     28 #include <Library/FspSwitchStackLib.h>
     29 #include <Library/FspCommonLib.h>
     30 #include <FspEas.h>
     31 
     32 #define SEC_IDT_ENTRY_COUNT    34
     33 
     34 typedef VOID (*PEI_CORE_ENTRY) ( \
     35   IN CONST  EFI_SEC_PEI_HAND_OFF    *SecCoreData, \
     36   IN CONST  EFI_PEI_PPI_DESCRIPTOR  *PpiList \
     37 );
     38 
     39 typedef struct _SEC_IDT_TABLE {
     40   EFI_PEI_SERVICES  *PeiService;
     41   UINT64            IdtTable[SEC_IDT_ENTRY_COUNT];
     42 } SEC_IDT_TABLE;
     43 
     44 /**
     45   Switch the stack in the temporary memory to the one in the permanent memory.
     46 
     47   This function must be invoked after the memory migration immediately. The relative
     48   position of the stack in the temporary and permanent memory is same.
     49 
     50   @param[in] TemporaryMemoryBase  Base address of the temporary memory.
     51   @param[in] PermenentMemoryBase  Base address of the permanent memory.
     52 **/
     53 VOID
     54 EFIAPI
     55 SecSwitchStack (
     56   IN UINT32   TemporaryMemoryBase,
     57   IN UINT32   PermenentMemoryBase
     58   );
     59 
     60 /**
     61   This service of the TEMPORARY_RAM_SUPPORT_PPI that migrates temporary RAM into
     62   permanent memory.
     63 
     64   @param[in] PeiServices            Pointer to the PEI Services Table.
     65   @param[in] TemporaryMemoryBase    Source Address in temporary memory from which the SEC or PEIM will copy the
     66                                 Temporary RAM contents.
     67   @param[in] PermanentMemoryBase    Destination Address in permanent memory into which the SEC or PEIM will copy the
     68                                 Temporary RAM contents.
     69   @param[in] CopySize               Amount of memory to migrate from temporary to permanent memory.
     70 
     71   @retval EFI_SUCCESS           The data was successfully returned.
     72   @retval EFI_INVALID_PARAMETER PermanentMemoryBase + CopySize > TemporaryMemoryBase when
     73                                 TemporaryMemoryBase > PermanentMemoryBase.
     74 
     75 **/
     76 EFI_STATUS
     77 EFIAPI
     78 SecTemporaryRamSupport (
     79   IN CONST EFI_PEI_SERVICES   **PeiServices,
     80   IN EFI_PHYSICAL_ADDRESS     TemporaryMemoryBase,
     81   IN EFI_PHYSICAL_ADDRESS     PermanentMemoryBase,
     82   IN UINTN                    CopySize
     83   );
     84 
     85 /**
     86   Initializes floating point units for requirement of UEFI specification.
     87 
     88   This function initializes floating-point control word to 0x027F (all exceptions
     89   masked,double-precision, round-to-nearest) and multimedia-extensions control word
     90   (if supported) to 0x1F80 (all exceptions masked, round-to-nearest, flush to zero
     91   for masked underflow).
     92 
     93 **/
     94 VOID
     95 EFIAPI
     96 InitializeFloatingPointUnits (
     97   VOID
     98   );
     99 
    100 /**
    101 
    102   Entry point to the C language phase of SEC. After the SEC assembly
    103   code has initialized some temporary memory and set up the stack,
    104   the control is transferred to this function.
    105 
    106 
    107   @param[in] SizeOfRam          Size of the temporary memory available for use.
    108   @param[in] TempRamBase        Base address of temporary ram
    109   @param[in] BootFirmwareVolume Base address of the Boot Firmware Volume.
    110   @param[in] PeiCore            PeiCore entry point.
    111   @param[in] BootLoaderStack    BootLoader stack.
    112   @param[in] ApiIdx             the index of API.
    113 
    114   @return This function never returns.
    115 
    116 **/
    117 VOID
    118 EFIAPI
    119 SecStartup (
    120   IN UINT32                   SizeOfRam,
    121   IN UINT32                   TempRamBase,
    122   IN VOID                    *BootFirmwareVolume,
    123   IN PEI_CORE_ENTRY           PeiCore,
    124   IN UINT32                   BootLoaderStack,
    125   IN UINT32                   ApiIdx
    126   );
    127 
    128 /**
    129   Autogenerated function that calls the library constructors for all of the module's
    130   dependent libraries.  This function must be called by the SEC Core once a stack has
    131   been established.
    132 
    133 **/
    134 VOID
    135 EFIAPI
    136 ProcessLibraryConstructorList (
    137   VOID
    138   );
    139 
    140 #endif
    141