OvmfPkg/PlatformPei/Xen.h

   1 /** @file
   2   Ovmf info structure passed by Xen
   3
   4 Copyright (c) 2013, Citrix Systems UK Ltd.<BR>
   5
   6 SPDX-License-Identifier: BSD-2-Clause-Patent
   7
   8 **/
   9
  10 #ifndef __XEN_H__
  11 #define __XEN_H__
  12
  13 #include <PiPei.h>
  14
  15 // Physical address of OVMF info
  16 #define OVMF_INFO_PHYSICAL_ADDRESS 0x00001000
  17
  18 // This structure must match the definition on Xen side
  19 #pragma pack(1)
  20 typedef struct {
  21   CHAR8 Signature[14]; // XenHVMOVMF\0
  22   UINT8 Length;        // Length of this structure
  23   UINT8 Checksum;      // Set such that the sum over bytes 0..length == 0
  24   //
  25   // Physical address of an array of TablesCount elements.
  26   //
  27   // Each element contains the physical address of a BIOS table.
  28   //
  29   EFI_PHYSICAL_ADDRESS Tables;
  30   UINT32 TablesCount;
  31   //
  32   // Physical address of the E820 table, contains E820EntriesCount entries.
  33   //
  34   EFI_PHYSICAL_ADDRESS E820;
  35   UINT32 E820EntriesCount;
  36 } EFI_XEN_OVMF_INFO;
  37 #pragma pack()
  38
  39 #endif /* __XEN_H__ */