OSInfo.h

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#ifndef EFI_OS_INFO_H
#define EFI_OS_INFO_H
 
// EFI_OS_INFO_PROTOCOL_REVISION
#define EFI_OS_INFO_PROTOCOL_REVISION_NAME    0x00000001
#define EFI_OS_INFO_PROTOCOL_REVISION_VENDOR  0x00000002
#define EFI_OS_INFO_PROTOCOL_REVISION_VTD     0x00000003
#define EFI_OS_INFO_PROTOCOL_REVISION         0x00000003
 
// EFI_OS_INFO_PROTOCOL_GUID
#define EFI_OS_INFO_PROTOCOL_GUID  \
  { 0xC5C5DA95, 0x7D5C, 0x45E6,    \
    { 0xB2, 0xF1, 0x3F, 0xD5, 0x2B, 0xB1, 0x00, 0x77 } }
 
#define EFI_OS_INFO_APPLE_VENDOR_NAME  "Apple Inc."
 
// OS_INFO_OS_NAME
typedef
VOID
(EFIAPI *OS_INFO_OS_NAME)(
  IN CHAR8  *OSName
  );
 
// OS_INFO_OS_VENDOR
typedef
VOID
(EFIAPI *OS_INFO_OS_VENDOR)(
  IN CHAR8  *OSName
  );
 
// OS_INFO_SET_VTD_ENABLED
typedef
VOID
(EFIAPI *OS_INFO_SET_VTD_ENABLED)(
  IN UINTN  *BootVTdEnabled
  );
 
// OS_INFO_GET_VTD_ENABLED
typedef
VOID
(EFIAPI *OS_INFO_GET_VTD_ENABLED)(
  OUT UINTN  *BootVTdEnabled
  );
 
// EFI_OS_INFO_PROTOCOL
typedef struct {
  UINTN                      Revision;          
  OS_INFO_OS_NAME            OSName;            
  OS_INFO_OS_VENDOR          OSVendor;          
  OS_INFO_SET_VTD_ENABLED    SetBootVTdEnabled; 
  OS_INFO_GET_VTD_ENABLED    GetBootVTdEnabled; 
} EFI_OS_INFO_PROTOCOL;
 
// gEfiOSInfoProtocolGuid
extern EFI_GUID  gEfiOSInfoProtocolGuid;
 
#endif // EFI_OS_INFO_H