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CorebootModulePkg/CbParseLib: Support current Coreboot IMD 

The latest coreboot use IMD (In Memory Database) to report Tables. This patch adds IMD support in UEFI payload.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Dong <guo.dong@intel.com>
Reviewed-by: Maurice Ma <maurice.ma@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17484 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Guo Dong 2015-05-20 08:21:18 +00:00 committed by gdong1
parent eef538572f
commit 165c00599e
2 changed files with 58 additions and 15 deletions
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21
CorebootModulePkg/Include/Coreboot.h
View File

@ -1,7 +1,7 @@
/** @file
Coreboot PEI module include file.
Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2014 - 2015, 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
@ -51,6 +51,9 @@
#define DYN_CBMEM_ALIGN_SIZE (4096)
#define IMD_ENTRY_MAGIC (~0xC0389481)
#define CBMEM_ENTRY_MAGIC (~0xC0389479)
struct cbmem_entry {
UINT32 magic;
UINT32 start;
@ -66,6 +69,22 @@ struct cbmem_root {
struct cbmem_entry entries[0];
};
struct imd_entry {
UINT32 magic;
UINT32 start_offset;
UINT32 size;
UINT32 id;
};
struct imd_root {
UINT32 max_entries;
UINT32 num_entries;
UINT32 flags;
UINT32 entry_align;
UINT32 max_offset;
struct imd_entry entries[0];
};
struct cbuint64 {
UINT32 lo;
UINT32 hi;

46
CorebootModulePkg/Library/CbParseLib/CbParseLib.c
View File

@ -2,7 +2,7 @@
This library will parse the coreboot table in memory and extract those required
information.
Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2014 - 2015, 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
@ -126,24 +126,48 @@ FindCbTag (
RETURN_STATUS
FindCbMemTable (
struct cbmem_root *root,
IN struct cbmem_root *Root,
IN UINT32 TableId,
IN VOID** pMemTable,
IN UINT32* pMemTableSize
OUT VOID **pMemTable,
OUT UINT32 *pMemTableSize
)
{
UINTN Idx;
BOOLEAN IsImdEntry;
struct cbmem_entry *Entries;
if ((!root) || (!pMemTable))
if ((Root == NULL) || (pMemTable == NULL)) {
return RETURN_INVALID_PARAMETER;
}
for (Idx = 0; Idx < root->num_entries; Idx++) {
if (root->entries[Idx].id == TableId) {
*pMemTable = (VOID *) (UINTN)root->entries[Idx].start;
if (pMemTableSize)
*pMemTableSize = root->entries[Idx].size;
//
// Check if the entry is CBMEM or IMD
// and handle them separately
//
Entries = Root->entries;
if (Entries[0].magic == CBMEM_ENTRY_MAGIC) {
IsImdEntry = FALSE;
} else {
Entries = (struct cbmem_entry *)((struct imd_root *)Root)->entries;
if (Entries[0].magic == IMD_ENTRY_MAGIC) {
IsImdEntry = TRUE;
} else {
return RETURN_NOT_FOUND;
}
}
DEBUG ((EFI_D_ERROR, "Find CbMemTable Id 0x%x, base %p, size 0x%x\n", TableId, *pMemTable, *pMemTableSize));
for (Idx = 0; Idx < Root->num_entries; Idx++) {
if (Entries[Idx].id == TableId) {
if (IsImdEntry) {
*pMemTable = (VOID *) ((UINTN)Entries[Idx].start + (UINTN)Root);
} else {
*pMemTable = (VOID *) (UINTN)Entries[Idx].start;
}
if (pMemTableSize != NULL) {
*pMemTableSize = Entries[Idx].size;
}
DEBUG ((EFI_D_INFO, "Find CbMemTable Id 0x%x, base %p, size 0x%x\n", TableId, *pMemTable, *pMemTableSize));
return RETURN_SUCCESS;
}
}