Define Guid & data structure for EFI_RT_PROPERTIES_TABLE, designed
to be published by a platform if it no longer supports all EFI
runtime services once ExitBootServices() has been called by the OS.
(UEFI 2.8 errata a, mantis 2049)
Signed-off-by: Oleksiy Yakovlev <oleks...@ami.com>
---
MdePkg/Include/Guid/RtPropertiesTable.h | 69 +++++++++++++++++++++++++++++++++
MdePkg/MdePkg.dec | 5 +++
2 files changed, 74 insertions(+)
create mode 100644 MdePkg/Include/Guid/RtPropertiesTable.h
diff --git a/MdePkg/Include/Guid/RtPropertiesTable.h
b/MdePkg/Include/Guid/RtPropertiesTable.h
new file mode 100644
index 0000000..1b07bf2
--- /dev/null
+++ b/MdePkg/Include/Guid/RtPropertiesTable.h
@@ -0,0 +1,69 @@
+/** @file
+Guid & data structure for EFI_RT _PROPERTIES_TABLE, designed to be published
by a
+platform if it no longer supports all EFI runtime services once
ExitBootServices()
+has been called by the OS. Introduced in UEFI 2.8a.
+
+
+Copyright (c) 2020, American Megatrends International LLC. All rights
reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef __RT _PROPERTIES_TABLE_GUID_H__
+#define __RT _PROPERTIES_TABLE_GUID_H__
+
+//
+// Table, defined here, should be published by a platform if it no longer
supports all EFI runtime
+// services once ExitBootServices() has been called by the OS. Note that this
is merely a hint
+// to the OS, which it is free to ignore, and so the platform is still
required to provide callable
+// implementations of unsupported runtime services that simply return
EFI_UNSUPPORTED.
+//
+#define EFI_RT_PROPERTIES_TABLE_GUID \
+ { 0xeb66918a, 0x7eef, 0x402a, \
+ { 0x84, 0x2e, 0x93, 0x1d, 0x21, 0xc3, 0x8a, 0xe9 }}
+
+
+
+
+#pragma pack(1)
+
+typedef struct {
+ ///
+ /// Version of the structure, must be 0x1.
+ ///
+ UINT16 Version;
+
+ ///
+ /// Size in bytes of the entire EFI_RT_PROPERTIES_TABLE, must be 8.
+ ///
+ UINT16 Length;
+
+ ///
+ /// Bitmask of which calls are or are not supported, where a bit set to 1
indicates
+ /// that the call is supported, and 0 indicates that it is not.
+ ///
+ UINT32 RuntimeServicesSupported;
+} EFI_RT_PROPERTIES_TABLE;
+
+#pragma pack()
+
+#define EFI_RT_PROPERTIES_TABLE_VERSION 0x1
+
+#define EFI_RT_SUPPORTED_GET_TIME 0x0001
+#define EFI_RT_SUPPORTED_SET_TIME 0x0002
+#define EFI_RT_SUPPORTED_GET_WAKEUP_TIME 0x0004
+#define EFI_RT_SUPPORTED_SET_WAKEUP_TIME 0x0008
+#define EFI_RT_SUPPORTED_GET_VARIABLE 0x0010
+#define EFI_RT_SUPPORTED_GET_NEXT_VARIABLE_NAME 0x0020
+#define EFI_RT_SUPPORTED_SET_VARIABLE 0x0040
+#define EFI_RT_SUPPORTED_SET_VIRTUAL_ADDRESS_MAP 0x0080
+#define EFI_RT_SUPPORTED_CONVERT_POINTER 0x0100
+#define EFI_RT_SUPPORTED_GET_NEXT_HIGH_MONOTONIC_COUNT 0x0200
+#define EFI_RT_SUPPORTED_RESET_SYSTEM 0x0400
+#define EFI_RT_SUPPORTED_UPDATE_CAPSULE 0x0800
+#define EFI_RT_SUPPORTED_QUERY_CAPSULE_CAPABILITIES 0x1000
+#define EFI_RT_SUPPORTED_QUERY_VARIABLE_INFO 0x2000
+
+extern EFI_GUID gEfiRtPropertiesTableGuid;
+
+#endif
diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
index ecd7822..0dd20ad 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -654,6 +654,11 @@
## Include/Guid/Btt.h
gEfiBttAbstractionGuid = { 0x18633bfc, 0x1735, 0x4217, { 0x8a, 0xc9,
0x17, 0x23, 0x92, 0x82, 0xd3, 0xf8 }}
+ # GUIDs defined in UEFI2.8a
+ #
+ ## Include/Guid/RtPropertiesTable.h
+ gEfiRtPropertiesTableGuid = { 0xeb66918a, 0x7eef, 0x402a, { 0x84, 0x2e,
0x93, 0x1d, 0x21, 0xc3, 0x8a, 0xe9 }}
+
#
# GUID defined in PI1.0
#
--
2.9.0.windows.1
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