Qemu.c

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#include <Library/DebugLib.h>            // ASSERT_EFI_ERROR()
#include <Library/MemoryAllocationLib.h> // AllocatePool()
#include <Library/PcdLib.h>              // PcdGetBool()
#include <Library/QemuFwCfgLib.h>        // QemuFwCfgFindFile()
 
UINT8 *
GetQemuSmbiosTables (
  VOID
  )
{
  EFI_STATUS            Status;
  FIRMWARE_CONFIG_ITEM  Tables;
  UINTN                 TablesSize;
  UINT8                 *QemuTables;
 
  if (!PcdGetBool (PcdQemuSmbiosValidated)) {
    return NULL;
  }
 
  Status = QemuFwCfgFindFile (
             "etc/smbios/smbios-tables",
             &Tables,
             &TablesSize
             );
  ASSERT_EFI_ERROR (Status);
  ASSERT (TablesSize > 0);
 
  QemuTables = AllocatePool (TablesSize);
  if (QemuTables == NULL) {
    return NULL;
  }
 
  QemuFwCfgSelectItem (Tables);
  QemuFwCfgReadBytes (TablesSize, QemuTables);
 
  return QemuTables;
}