PrmPkg/Include/PrmMmio.h

   1 /** @file
   2
   3   Definitions for the Platform Runtime Mechanism (PRM) MMIO elements.
   4
   5   Copyright (c) Microsoft Corporation
   6   SPDX-License-Identifier: BSD-2-Clause-Patent
   7
   8 **/
   9
  10 #ifndef PRM_MMIO_H_
  11 #define PRM_MMIO_H_
  12
  13 #include <Uefi.h>
  14
  15 #pragma pack(push, 1)
  16
  17 ///
  18 /// Describes a memory range that needs to be made accessible at OS runtime.
  19 ///
  20 /// The memory range with the given base address and length will be marked as EFI_MEMORY_RUNTIME.
  21 ///
  22 typedef struct {
  23   EFI_PHYSICAL_ADDRESS    PhysicalBaseAddress;
  24   EFI_PHYSICAL_ADDRESS    VirtualBaseAddress;
  25   UINT32                  Length;
  26 } PRM_RUNTIME_MMIO_RANGE;
  27
  28 ///
  29 /// Describes a buffer with an array of PRM module
  30 /// config runtime memory ranges.
  31 ///
  32 typedef struct {
  33   ///
  34   /// The number of runtime memory range elements in this buffer.
  35   ///
  36   UINT64                    Count;
  37   ///
  38   /// The beginning of the runtime memory range data.
  39   ///
  40   PRM_RUNTIME_MMIO_RANGE    Range[1];
  41 } PRM_RUNTIME_MMIO_RANGES;
  42
  43 #pragma pack(pop)
  44
  45 #endif