3 * Copyright (c) 2011-2012, ARM Limited. All rights reserved.
5 * This program and the accompanying materials
6 * are licensed and made available under the terms and conditions of the BSD License
7 * which accompanies this distribution. The full text of the license may be found at
8 * http://opensource.org/licenses/bsd-license.php
10 * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
15 #include "PrePeiCore.h"
29 IN EFI_PEI_CORE_ENTRY_POINT PeiCoreEntryPoint
32 EFI_SEC_PEI_HAND_OFF SecCoreData
;
34 EFI_PEI_PPI_DESCRIPTOR
*PpiList
;
35 UINTN TemporaryRamBase
;
36 UINTN TemporaryRamSize
;
38 CreatePpiList (&PpiListSize
, &PpiList
);
40 // Adjust the Temporary Ram as the new Ppi List (Common + Platform Ppi Lists) is created at
41 // the base of the primary core stack
42 PpiListSize
= ALIGN_VALUE(PpiListSize
, 0x4);
43 TemporaryRamBase
= (UINTN
)PcdGet64 (PcdCPUCoresStackBase
) + PpiListSize
;
44 TemporaryRamSize
= (UINTN
)PcdGet32 (PcdCPUCorePrimaryStackSize
) - PpiListSize
;
46 // Make sure the size is 8-byte aligned. Once divided by 2, the size should be 4-byte aligned
47 // to ensure the stack pointer is 4-byte aligned.
48 TemporaryRamSize
= TemporaryRamSize
- (TemporaryRamSize
& (0x8-1));
51 // Bind this information into the SEC hand-off state
52 // Note: this must be in sync with the stuff in the asm file
53 // Note also: HOBs (pei temp ram) MUST be above stack
55 SecCoreData
.DataSize
= sizeof(EFI_SEC_PEI_HAND_OFF
);
56 SecCoreData
.BootFirmwareVolumeBase
= (VOID
*)(UINTN
)PcdGet64 (PcdFvBaseAddress
);
57 SecCoreData
.BootFirmwareVolumeSize
= PcdGet32 (PcdFvSize
);
58 SecCoreData
.TemporaryRamBase
= (VOID
*)TemporaryRamBase
; // We run on the primary core (and so we use the first stack)
59 SecCoreData
.TemporaryRamSize
= TemporaryRamSize
;
60 SecCoreData
.PeiTemporaryRamBase
= SecCoreData
.TemporaryRamBase
;
61 SecCoreData
.PeiTemporaryRamSize
= SecCoreData
.TemporaryRamSize
/ 2;
62 SecCoreData
.StackBase
= (VOID
*)ALIGN_VALUE((UINTN
)(SecCoreData
.TemporaryRamBase
) + SecCoreData
.PeiTemporaryRamSize
, 0x4);
63 SecCoreData
.StackSize
= (TemporaryRamBase
+ TemporaryRamSize
) - (UINTN
)SecCoreData
.StackBase
;
65 // Jump to PEI core entry point
66 (PeiCoreEntryPoint
)(&SecCoreData
, PpiList
);