From: Min M Xu <min.m...@intel.com>
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3937
Plase refer to:
UEFI Spec v2.9 Table 7-5 Memory Type Usage before ExitBootServices()
Cc: Michael D Kinney <michael.d.kin...@intel.com>
Cc: Liming Gao <gaolim...@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang....@intel.com>
Cc: Erdem Aktas <erdemak...@google.com>
Cc: Gerd Hoffmann <kra...@redhat.com>
Cc: James Bottomley <j...@linux.ibm.com>
Cc: Jiewen Yao <jiewen....@intel.com>
Cc: Tom Lendacky <thomas.lenda...@amd.com>
Reviewed-by: Jiewen Yao <jiewen....@intel.com>
Acked-by: Gerd Hoffmann <kra...@redhat.com>
Signed-off-by: Min Xu <min.m...@intel.com>
---
MdeModulePkg/Include/Pi/PrePiDxeCis.h | 25 +++++++++++++++++++++++++
MdePkg/Include/Pi/PiDxeCis.h | 10 +++++++++-
MdePkg/Include/Uefi/UefiMultiPhase.h | 5 +++++
3 files changed, 39 insertions(+), 1 deletion(-)
create mode 100644 MdeModulePkg/Include/Pi/PrePiDxeCis.h
diff --git a/MdeModulePkg/Include/Pi/PrePiDxeCis.h
b/MdeModulePkg/Include/Pi/PrePiDxeCis.h
new file mode 100644
index 000000000000..113ac37924cc
--- /dev/null
+++ b/MdeModulePkg/Include/Pi/PrePiDxeCis.h
@@ -0,0 +1,25 @@
+/** @file
+ Include file matches things in PI.
+
+Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef MDE_MODULEPKG_PRE_PI_DXE_CIS_H_
+#define MDE_MODULEPKG_PRE_PI_DXE_CIS_H_
+
+///
+/// A memory region that describes system memory that has not been accepted
+/// by a corresponding call to the underlying isolation architecture.
+///
+/// This memory region has not been defined in PI spec, so it is defined in
+/// PrePiDxeCis.h. And it is defined in the format of captial letters
+/// because only capital letters are allowed to be used for #define
declarations.
+///
+/// After this memory region is defined in PI spec, it should be a value in
+/// EFI_GCD_MEMORY_TYPE in PiDxeCis.h.
+///
+#define EFI_GCD_MEMORY_TYPE_UNACCEPTED 7
+
+#endif
diff --git a/MdePkg/Include/Pi/PiDxeCis.h b/MdePkg/Include/Pi/PiDxeCis.h
index d0f2ed0e58df..27b219aa3ffa 100644
--- a/MdePkg/Include/Pi/PiDxeCis.h
+++ b/MdePkg/Include/Pi/PiDxeCis.h
@@ -56,7 +56,15 @@ typedef enum {
/// system. If all memory has the same reliability, then this bit is not
used.
///
EfiGcdMemoryTypeMoreReliable,
- EfiGcdMemoryTypeMaximum
+ // ///
+ // /// A memory region that describes system memory that has not been
accepted
+ // /// by a corresponding call to the underlying isolation architecture.
+ // ///
+ // /// Please be noted:
+ // /// EfiGcdMemoryTypeUnaccepted is defined in PrePiDxeCis.h because it has
not been
+ // /// defined in PI spec.
+ // EfiGcdMemoryTypeUnaccepted,
+ EfiGcdMemoryTypeMaximum = 8
} EFI_GCD_MEMORY_TYPE;
///
diff --git a/MdePkg/Include/Uefi/UefiMultiPhase.h
b/MdePkg/Include/Uefi/UefiMultiPhase.h
index 22bae43e36e8..7884913371a9 100644
--- a/MdePkg/Include/Uefi/UefiMultiPhase.h
+++ b/MdePkg/Include/Uefi/UefiMultiPhase.h
@@ -103,6 +103,11 @@ typedef enum {
/// however it happens to also support byte-addressable non-volatility.
///
EfiPersistentMemory,
+ ///
+ /// A memory region that describes system memory that has not been accepted
+ /// by a corresponding call to the underlying isolation architecture.
+ ///
+ EfiUnacceptedMemoryType,
EfiMaxMemoryType
} EFI_MEMORY_TYPE;
--
2.29.2.windows.2
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