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3b17ae9e51
Use of void** as a generic pointer to pointer is a Microsoft extension to the C language and is not supported by gcc. Without this change, gcc compile fails with error: passing argument 1 of 'CbParseAcpiTable' from incompatible pointer type note: expected 'void **' but argument is of type 'struct EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER **' Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Scott Duplichan <scott@notabs.org> Reviewed-by: Maurice Ma <maurice.ma@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17144 6f19259b-4bc3-4df7-8a09-765794883524
558 lines
16 KiB
C
558 lines
16 KiB
C
/** @file
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This library will parse the coreboot table in memory and extract those required
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information.
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Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <Uefi/UefiBaseType.h>
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#include <Library/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/DebugLib.h>
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#include <Library/PcdLib.h>
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#include <Library/CbParseLib.h>
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#include <IndustryStandard/Acpi.h>
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#include "Coreboot.h"
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/* Helpful inlines */
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static UINT64 cb_unpack64(struct cbuint64 val)
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{
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return LShiftU64 (val.hi, 32) | val.lo;
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}
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UINT16
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CbCheckSum16 (
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IN UINT16 *Buffer,
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IN UINTN Length
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)
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{
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UINT32 Sum, TmpValue;
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UINTN Idx;
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UINT8 *TmpPtr;
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Sum = 0;
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TmpPtr = (UINT8 *)Buffer;
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for(Idx = 0; Idx < Length; Idx++) {
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TmpValue = TmpPtr[Idx];
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if (Idx % 2 == 1) {
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TmpValue <<= 8;
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}
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Sum += TmpValue;
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// Wrap
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if (Sum >= 0x10000) {
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Sum = (Sum + (Sum >> 16)) & 0xFFFF;
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}
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}
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return (UINT16)((~Sum) & 0xFFFF);
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}
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VOID *
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FindCbTag (
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IN VOID *Start,
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IN UINT32 Tag
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)
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{
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struct cb_header *Header;
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struct cb_record *Record;
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UINT8 *TmpPtr;
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UINT8 *TagPtr;
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UINTN Idx;
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UINT16 CheckSum;
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Header = NULL;
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TmpPtr = (UINT8 *)Start;
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for (Idx = 0; Idx < 4096; Idx += 16, TmpPtr += 16) {
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Header = (struct cb_header *)TmpPtr;
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if (Header->signature == CB_HEADER_SIGNATURE) {
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break;
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}
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}
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if (Idx >= 4096)
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return NULL;
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if (Header == NULL || !Header->table_bytes)
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return NULL;
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//
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// Check the checksum of the coreboot table header
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//
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CheckSum = CbCheckSum16 ((UINT16 *)Header, sizeof (*Header));
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if (CheckSum != 0) {
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DEBUG ((EFI_D_ERROR, "Invalid coreboot table header checksum\n"));
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return NULL;
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}
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CheckSum = CbCheckSum16 ((UINT16 *)(TmpPtr + sizeof (*Header)), Header->table_bytes);
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if (CheckSum != Header->table_checksum) {
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DEBUG ((EFI_D_ERROR, "Incorrect checksum of all the coreboot table entries\n"));
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return NULL;
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}
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TagPtr = NULL;
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TmpPtr += Header->header_bytes;
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for (Idx = 0; Idx < Header->table_entries; Idx++) {
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Record = (struct cb_record *)TmpPtr;
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if (Record->tag == CB_TAG_FORWARD) {
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TmpPtr = (VOID *)(UINTN)((struct cb_forward *)(UINTN)Record)->forward;
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if (Tag == CB_TAG_FORWARD)
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return TmpPtr;
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else
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return FindCbTag (TmpPtr, Tag);
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}
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if (Record->tag == Tag) {
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TagPtr = TmpPtr;
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break;
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}
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TmpPtr += Record->size;
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}
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return TagPtr;
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}
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RETURN_STATUS
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FindCbMemTable (
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struct cbmem_root *root,
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IN UINT32 TableId,
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IN VOID** pMemTable,
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IN UINT32* pMemTableSize
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)
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{
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UINTN Idx;
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if ((!root) || (!pMemTable))
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return RETURN_INVALID_PARAMETER;
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for (Idx = 0; Idx < root->num_entries; Idx++) {
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if (root->entries[Idx].id == TableId) {
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*pMemTable = (VOID *) (UINTN)root->entries[Idx].start;
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if (pMemTableSize)
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*pMemTableSize = root->entries[Idx].size;
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DEBUG ((EFI_D_ERROR, "Find CbMemTable Id 0x%x, base 0x%x, size 0x%x\n", TableId, *pMemTable, *pMemTableSize));
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return RETURN_SUCCESS;
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}
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}
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return RETURN_NOT_FOUND;
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}
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/**
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Acquire the memory information from the coreboot table in memory.
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@param pLowMemorySize Pointer to the variable of low memory size
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@param pHighMemorySize Pointer to the variable of high memory size
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@retval RETURN_SUCCESS Successfully find out the memory information.
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@retval RETURN_INVALID_PARAMETER Invalid input parameters.
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@retval RETURN_NOT_FOUND Failed to find the memory information.
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**/
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RETURN_STATUS
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CbParseMemoryInfo (
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IN UINT64* pLowMemorySize,
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IN UINT64* pHighMemorySize
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)
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{
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struct cb_memory* rec;
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struct cb_memory_range* Range;
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UINT64 Start;
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UINT64 Size;
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UINTN Index;
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if ((!pLowMemorySize) || (!pHighMemorySize))
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return RETURN_INVALID_PARAMETER;
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//
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// Get the coreboot memory table
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//
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rec = (struct cb_memory *)FindCbTag (0, CB_TAG_MEMORY);
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if (!rec)
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rec = (struct cb_memory *)FindCbTag ((VOID *)(UINTN)PcdGet32 (PcdCbHeaderPointer), CB_TAG_MEMORY);
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if (!rec)
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return RETURN_NOT_FOUND;
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*pLowMemorySize = 0;
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*pHighMemorySize = 0;
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for (Index = 0; Index < MEM_RANGE_COUNT(rec); Index++) {
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Range = MEM_RANGE_PTR(rec, Index);
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Start = cb_unpack64(Range->start);
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Size = cb_unpack64(Range->size);
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DEBUG ((EFI_D_ERROR, "%d. %016lx - %016lx [%02x]\n",
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Index, Start, Start + Size - 1, Range->type));
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if (Range->type != CB_MEM_RAM) {
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continue;
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}
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if (Start + Size < 0x100000000ULL) {
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*pLowMemorySize = Start + Size;
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} else {
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*pHighMemorySize = Start + Size - 0x100000000ULL;
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}
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}
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DEBUG ((EFI_D_ERROR, "Low memory 0x%x, High Memory 0x%x\n", *pLowMemorySize, *pHighMemorySize));
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return RETURN_SUCCESS;
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}
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/**
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Acquire the coreboot memory table with the given table id
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@param TableId Table id to be searched
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@param pMemTable Pointer to the base address of the memory table
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@param pMemTableSize Pointer to the size of the memory table
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@retval RETURN_SUCCESS Successfully find out the memory table.
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@retval RETURN_INVALID_PARAMETER Invalid input parameters.
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@retval RETURN_NOT_FOUND Failed to find the memory table.
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**/
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RETURN_STATUS
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CbParseCbMemTable (
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IN UINT32 TableId,
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IN VOID** pMemTable,
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IN UINT32* pMemTableSize
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)
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{
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struct cb_memory* rec;
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struct cb_memory_range* Range;
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UINT64 Start;
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UINT64 Size;
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UINTN Index;
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if (!pMemTable)
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return RETURN_INVALID_PARAMETER;
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*pMemTable = NULL;
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//
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// Get the coreboot memory table
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//
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rec = (struct cb_memory *)FindCbTag (0, CB_TAG_MEMORY);
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if (!rec)
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rec = (struct cb_memory *)FindCbTag ((VOID *)(UINTN)PcdGet32 (PcdCbHeaderPointer), CB_TAG_MEMORY);
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if (!rec)
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return RETURN_NOT_FOUND;
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for (Index = 0; Index < MEM_RANGE_COUNT(rec); Index++) {
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Range = MEM_RANGE_PTR(rec, Index);
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Start = cb_unpack64(Range->start);
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Size = cb_unpack64(Range->size);
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if ((Range->type == CB_MEM_TABLE) && (Start > 0x1000)) {
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if (FindCbMemTable ((struct cbmem_root *)(UINTN)(Start + Size - DYN_CBMEM_ALIGN_SIZE), TableId, pMemTable, pMemTableSize) == RETURN_SUCCESS)
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return RETURN_SUCCESS;
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}
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}
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return RETURN_NOT_FOUND;
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}
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/**
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Acquire the acpi table from coreboot
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@param pMemTable Pointer to the base address of the memory table
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@param pMemTableSize Pointer to the size of the memory table
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@retval RETURN_SUCCESS Successfully find out the memory table.
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@retval RETURN_INVALID_PARAMETER Invalid input parameters.
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@retval RETURN_NOT_FOUND Failed to find the memory table.
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**/
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RETURN_STATUS
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CbParseAcpiTable (
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IN VOID* pMemTable,
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IN UINT32* pMemTableSize
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)
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{
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return CbParseCbMemTable (SIGNATURE_32 ('I', 'P', 'C', 'A'), (VOID **)pMemTable, pMemTableSize);
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}
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/**
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Acquire the smbios table from coreboot
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@param pMemTable Pointer to the base address of the memory table
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@param pMemTableSize Pointer to the size of the memory table
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@retval RETURN_SUCCESS Successfully find out the memory table.
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@retval RETURN_INVALID_PARAMETER Invalid input parameters.
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@retval RETURN_NOT_FOUND Failed to find the memory table.
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**/
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RETURN_STATUS
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CbParseSmbiosTable (
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IN VOID** pMemTable,
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IN UINT32* pMemTableSize
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)
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{
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return CbParseCbMemTable (SIGNATURE_32 ('T', 'B', 'M', 'S'), pMemTable, pMemTableSize);
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}
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/**
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Find the required fadt information
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@param pPmCtrlReg Pointer to the address of power management control register
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@param pPmTimerReg Pointer to the address of power management timer register
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@param pResetReg Pointer to the address of system reset register
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@param pResetValue Pointer to the value to be writen to the system reset register
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@retval RETURN_SUCCESS Successfully find out all the required fadt information.
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@retval RETURN_NOT_FOUND Failed to find the fadt table.
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**/
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RETURN_STATUS
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CbParseFadtInfo (
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IN UINTN* pPmCtrlReg,
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IN UINTN* pPmTimerReg,
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IN UINTN* pResetReg,
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IN UINTN* pResetValue
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)
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{
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EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER* Rsdp;
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EFI_ACPI_DESCRIPTION_HEADER* Rsdt;
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UINT32* Entry32;
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UINTN Entry32Num;
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EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE* Fadt;
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EFI_ACPI_DESCRIPTION_HEADER* Xsdt;
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UINT64* Entry64;
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UINTN Entry64Num;
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UINTN Idx;
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RETURN_STATUS Status;
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Rsdp = NULL;
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Status = RETURN_SUCCESS;
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Status = CbParseAcpiTable (&Rsdp, NULL);
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if (RETURN_ERROR(Status))
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return Status;
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if (!Rsdp)
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return RETURN_NOT_FOUND;
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DEBUG ((EFI_D_ERROR, "Find Rsdp at 0x%x\n", Rsdp));
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DEBUG ((EFI_D_ERROR, "Find Rsdt 0x%x, Xsdt 0x%x\n", Rsdp->RsdtAddress, Rsdp->XsdtAddress));
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//
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// Search Rsdt First
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//
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Rsdt = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)(Rsdp->RsdtAddress);
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if (Rsdt != NULL) {
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Entry32 = (UINT32 *)(Rsdt + 1);
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Entry32Num = (Rsdt->Length - sizeof(EFI_ACPI_DESCRIPTION_HEADER)) >> 2;
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for (Idx = 0; Idx < Entry32Num; Idx++) {
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if (*(UINT32 *)(UINTN)(Entry32[Idx]) == EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {
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Fadt = (EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)(UINTN)(Entry32[Idx]);
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if (pPmCtrlReg)
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*pPmCtrlReg = Fadt->Pm1aCntBlk;
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DEBUG ((EFI_D_ERROR, "PmCtrl Reg 0x%x\n", Fadt->Pm1aCntBlk));
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if (pPmTimerReg)
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*pPmTimerReg = Fadt->PmTmrBlk;
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DEBUG ((EFI_D_ERROR, "PmTimer Reg 0x%x\n", Fadt->PmTmrBlk));
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if (pResetReg)
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*pResetReg = (UINTN)Fadt->ResetReg.Address;
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DEBUG ((EFI_D_ERROR, "Reset Reg 0x%x\n", Fadt->ResetReg.Address));
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if (pResetValue)
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*pResetValue = Fadt->ResetValue;
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DEBUG ((EFI_D_ERROR, "Reset Value 0x%x\n", Fadt->ResetValue));
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return RETURN_SUCCESS;
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}
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}
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}
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//
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// Search Xsdt Second
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//
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Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)(Rsdp->XsdtAddress);
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if (Xsdt != NULL) {
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Entry64 = (UINT64 *)(Xsdt + 1);
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Entry64Num = (Xsdt->Length - sizeof(EFI_ACPI_DESCRIPTION_HEADER)) >> 3;
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for (Idx = 0; Idx < Entry64Num; Idx++) {
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if (*(UINT32 *)(UINTN)(Entry64[Idx]) == EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {
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Fadt = (EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)(UINTN)(Entry64[Idx]);
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if (pPmCtrlReg)
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*pPmCtrlReg = Fadt->Pm1aCntBlk;
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DEBUG ((EFI_D_ERROR, "PmCtrl Reg 0x%x\n", Fadt->Pm1aCntBlk));
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if (pPmTimerReg)
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*pPmTimerReg = Fadt->PmTmrBlk;
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DEBUG ((EFI_D_ERROR, "PmTimer Reg 0x%x\n", Fadt->PmTmrBlk));
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if (pResetReg)
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*pResetReg = (UINTN)Fadt->ResetReg.Address;
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DEBUG ((EFI_D_ERROR, "Reset Reg 0x%x\n", Fadt->ResetReg.Address));
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if (pResetValue)
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*pResetValue = Fadt->ResetValue;
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DEBUG ((EFI_D_ERROR, "Reset Value 0x%x\n", Fadt->ResetValue));
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return RETURN_SUCCESS;
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}
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}
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}
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return RETURN_NOT_FOUND;
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}
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/**
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Find the serial port information
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@param pRegBase Pointer to the base address of serial port registers
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@param pRegAccessType Pointer to the access type of serial port registers
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@param pBaudrate Pointer to the serial port baudrate
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@retval RETURN_SUCCESS Successfully find the serial port information.
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@retval RETURN_NOT_FOUND Failed to find the serial port information .
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**/
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RETURN_STATUS
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CbParseSerialInfo (
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IN UINT32* pRegBase,
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IN UINT32* pRegAccessType,
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IN UINT32* pBaudrate
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)
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{
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struct cb_serial* CbSerial;
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CbSerial = FindCbTag (0, CB_TAG_SERIAL);
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if (!CbSerial)
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CbSerial = FindCbTag ((VOID *)(UINTN)PcdGet32 (PcdCbHeaderPointer), CB_TAG_SERIAL);
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if (!CbSerial)
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return RETURN_NOT_FOUND;
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if (pRegBase)
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*pRegBase = CbSerial->baseaddr;
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if (pRegAccessType)
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*pRegAccessType = CbSerial->type;
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if (pBaudrate)
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*pBaudrate = CbSerial->baud;
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return RETURN_SUCCESS;
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}
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/**
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Search for the coreboot table header
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@param Level Level of the search depth
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@param HeaderPtr Pointer to the pointer of coreboot table header
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@retval RETURN_SUCCESS Successfully find the coreboot table header .
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@retval RETURN_NOT_FOUND Failed to find the coreboot table header .
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**/
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RETURN_STATUS
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CbParseGetCbHeader (
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IN UINTN Level,
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IN VOID** HeaderPtr
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)
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{
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UINTN Index;
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VOID* TempPtr;
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if (!HeaderPtr)
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return RETURN_NOT_FOUND;
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TempPtr = NULL;
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for (Index = 0; Index < Level; Index++) {
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TempPtr = FindCbTag (TempPtr, CB_TAG_FORWARD);
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if (!TempPtr)
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break;
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}
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if ((Index >= Level) && (TempPtr != NULL)) {
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*HeaderPtr = TempPtr;
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return RETURN_SUCCESS;
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}
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return RETURN_NOT_FOUND;
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}
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/**
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Find the video frame buffer information
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@param pFbInfo Pointer to the FRAME_BUFFER_INFO structure
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@retval RETURN_SUCCESS Successfully find the video frame buffer information.
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@retval RETURN_NOT_FOUND Failed to find the video frame buffer information .
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**/
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RETURN_STATUS
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CbParseFbInfo (
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IN FRAME_BUFFER_INFO* pFbInfo
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)
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{
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struct cb_framebuffer* CbFbRec;
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if (!pFbInfo)
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return RETURN_INVALID_PARAMETER;
|
|
|
|
CbFbRec = FindCbTag (0, CB_TAG_FRAMEBUFFER);
|
|
if (!CbFbRec)
|
|
CbFbRec = FindCbTag ((VOID *)(UINTN)PcdGet32 (PcdCbHeaderPointer), CB_TAG_FRAMEBUFFER);
|
|
|
|
if (!CbFbRec)
|
|
return RETURN_NOT_FOUND;
|
|
|
|
DEBUG ((EFI_D_ERROR, "Found coreboot video frame buffer information\n"));
|
|
DEBUG ((EFI_D_ERROR, "physical_address: 0x%x\n", CbFbRec->physical_address));
|
|
DEBUG ((EFI_D_ERROR, "x_resolution: 0x%x\n", CbFbRec->x_resolution));
|
|
DEBUG ((EFI_D_ERROR, "y_resolution: 0x%x\n", CbFbRec->y_resolution));
|
|
DEBUG ((EFI_D_ERROR, "bits_per_pixel: 0x%x\n", CbFbRec->bits_per_pixel));
|
|
DEBUG ((EFI_D_ERROR, "bytes_per_line: 0x%x\n", CbFbRec->bytes_per_line));
|
|
|
|
DEBUG ((EFI_D_ERROR, "red_mask_size: 0x%x\n", CbFbRec->red_mask_size));
|
|
DEBUG ((EFI_D_ERROR, "red_mask_pos: 0x%x\n", CbFbRec->red_mask_pos));
|
|
DEBUG ((EFI_D_ERROR, "green_mask_size: 0x%x\n", CbFbRec->green_mask_size));
|
|
DEBUG ((EFI_D_ERROR, "green_mask_pos: 0x%x\n", CbFbRec->green_mask_pos));
|
|
DEBUG ((EFI_D_ERROR, "blue_mask_size: 0x%x\n", CbFbRec->blue_mask_size));
|
|
DEBUG ((EFI_D_ERROR, "blue_mask_pos: 0x%x\n", CbFbRec->blue_mask_pos));
|
|
DEBUG ((EFI_D_ERROR, "reserved_mask_size: 0x%x\n", CbFbRec->reserved_mask_size));
|
|
DEBUG ((EFI_D_ERROR, "reserved_mask_pos: 0x%x\n", CbFbRec->reserved_mask_pos));
|
|
|
|
pFbInfo->LinearFrameBuffer = CbFbRec->physical_address;
|
|
pFbInfo->HorizontalResolution = CbFbRec->x_resolution;
|
|
pFbInfo->VerticalResolution = CbFbRec->y_resolution;
|
|
pFbInfo->BitsPerPixel = CbFbRec->bits_per_pixel;
|
|
pFbInfo->BytesPerScanLine = (UINT16)CbFbRec->bytes_per_line;
|
|
pFbInfo->Red.Mask = (1 << CbFbRec->red_mask_size) - 1;
|
|
pFbInfo->Red.Position = CbFbRec->red_mask_pos;
|
|
pFbInfo->Green.Mask = (1 << CbFbRec->green_mask_size) - 1;
|
|
pFbInfo->Green.Position = CbFbRec->green_mask_pos;
|
|
pFbInfo->Blue.Mask = (1 << CbFbRec->blue_mask_size) - 1;
|
|
pFbInfo->Blue.Position = CbFbRec->blue_mask_pos;
|
|
pFbInfo->Reserved.Mask = (1 << CbFbRec->reserved_mask_size) - 1;
|
|
pFbInfo->Reserved.Position = CbFbRec->reserved_mask_pos;
|
|
|
|
return RETURN_SUCCESS;
|
|
}
|
|
|
|
|