ami smbios读取与修改 (断电不能保存)

最新推荐文章于 2024-09-05 15:35:58 发布

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最新推荐文章于 2024-09-05 15:35:58 发布 · 1.1k 阅读

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CC 4.0 BY-SA版权

本文深入探讨了UEFI环境中SMBIOS信息的获取与解析过程，详细介绍了如何使用EFI_BOOT_SERVICES和EFI_SYSTEM_TABLE来定位并读取SMBIOS表。通过具体的代码示例，展示了SMBIOS字符串的获取方法及SMBIOS结构的遍历技巧。

废话不多说直接code

#include  <Uefi.h>
#include  <Library/UefiLib.h>
//#include  <Library/ShellCEntryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/BaseMemoryLib.h>
#include  <Protocol/UsbIo.h>

#include  <Protocol/AmiUsbController.h>


#include <AmiLib.h>
#include <AmiDxeLib.h>
#include <AmiDxeLib.h>

#include <Protocol/Smbios.h>
#include "EfiKey.h"


#include <Uefi.h>  
#include <Library/UefiLib.h>
#include <IndustryStandard/SmBios.h>
//#include <Library/UefiShellDebug1CommandsLib.h>
//#include <Library/LibSmbiosView.h> 






extern EFI_BOOT_SERVICES         *gBS;
extern EFI_HANDLE					 gImageHandle;






#if 1

//*************************************************************************
//<AMI_PHDR_START>
//
// Name: Sprintf
//
// Description:
//  UINTN Sprintf(OUT CHAR8 *Buffer, IN CHAR8 *Format, IN ...) produces a
// null-terminated ASCII string in the output Buffer.  The ASCII string is
// produced by parsing the format string specified by Format.  Arguments are 
// pulled from the variable argument list based on the contents of the format
// string.  The number of ASCII characters in the produced output buffer is
// returned, not including the null-terminator. See notes for format string 
// information.
//
// Input:
//  OUT CHAR8 *Buffer
// Pointer to a null-terminated output ASCII string buffer.  User is
// responsible for allocating the necessary memory resources!
//
//  IN CHAR8 *Format
// Pointer to a null-terminated format ASCII string.
//
//  IN ...
// Variable argument list which provides the data/variables used within the
// format string.
//
// Output:
//  UINTN number of ASCII characters in the produced output buffer, not
// including the null-terminator.
//
// Modified:
//
// Referrals:
//  va_start
//  Sprintf_va_list
//  va_end
// 
// Notes:
//  Objects inside the format string have the following syntax.
//   %[flags][width]type
//
//  *** [flags] ***
//  
// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
// . Flag  .  Description
// .       . 
// . -     .  The field is left justified.  If flag is not specified, then 
// .       . the field is right justified.
// .       . 
// . space .  Prefix a space character to a number.  Only valid for types X, 
// .       . x, and d.
// .       .  
// . +     .  Prefix a plus character to a number.  Only valid for types X,
// .       . x, and d.  If both space and `+' are specified, then space is
// .       . ignored.
// .       .
// . 0     .  Pad with `0' characters to the left of a number.  Only valid
// .       . for types X, x, and d.
// .       .
// . L, l  .  The number being printed is a UINT64.  Only valid for types X,
// .       . x, and d.  If this flag is not specified, then the number being
// .       . printed is an int.
// .       .
// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
//  
//  NOTE
//   All invalid [flags] are ignored.
//
// *** [width] ***
//
// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
// . Width  .  Description
// .        .
// . *      .  The width of the field is specifi