audk/OvmfPkg/XenPlatformPei/Xen.h

40 lines
1.0 KiB
C

/** @file
Ovmf info structure passed by Xen
Copyright (c) 2013, Citrix Systems UK Ltd.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef __XEN_H__
#define __XEN_H__
#include <PiPei.h>
// Physical address of OVMF info
#define OVMF_INFO_PHYSICAL_ADDRESS 0x00001000
// This structure must match the definition on Xen side
#pragma pack(1)
typedef struct {
CHAR8 Signature[14]; // XenHVMOVMF\0
UINT8 Length; // Length of this structure
UINT8 Checksum; // Set such that the sum over bytes 0..length == 0
//
// Physical address of an array of TablesCount elements.
//
// Each element contains the physical address of a BIOS table.
//
EFI_PHYSICAL_ADDRESS Tables;
UINT32 TablesCount;
//
// Physical address of the E820 table, contains E820EntriesCount entries.
//
EFI_PHYSICAL_ADDRESS E820;
UINT32 E820EntriesCount;
} EFI_XEN_OVMF_INFO;
#pragma pack()
#endif /* __XEN_H__ */