MdePkg: Add UEFI Unaccepted memory definition

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.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Signed-off-by: Min Xu <min.m.xu@intel.com>

diff --git a/MdeModulePkg/Include/Pi/PrePiDxeCis.h b/MdeModulePkg/Include/Pi/PrePiDxeCis.h
new file mode 100644 (file)
index 0000000..113ac37
--- /dev/null
+++ b/MdeModulePkg/Include/Pi/PrePiDxeCis.h
@@ -0,0 +1,25 @@
+/** @file\r
+  Include file matches things in PI.\r
+\r
+Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>\r
+SPDX-License-Identifier: BSD-2-Clause-Patent\r
+\r
+**/\r
+\r
+#ifndef MDE_MODULEPKG_PRE_PI_DXE_CIS_H_\r
+#define MDE_MODULEPKG_PRE_PI_DXE_CIS_H_\r
+\r
+///\r
+/// A memory region that describes system memory that has not been accepted\r
+/// by a corresponding call to the underlying isolation architecture.\r
+///\r
+/// This memory region has not been defined in PI spec, so it is defined in\r
+/// PrePiDxeCis.h. And it is defined in the format of captial letters\r
+/// because only capital letters are allowed to be used for #define declarations.\r
+///\r
+/// After this memory region is defined in PI spec, it should be a value in\r
+/// EFI_GCD_MEMORY_TYPE in PiDxeCis.h.\r
+///\r
+#define  EFI_GCD_MEMORY_TYPE_UNACCEPTED  7\r
+\r
+#endif\r

diff --git a/MdePkg/Include/Pi/PiDxeCis.h b/MdePkg/Include/Pi/PiDxeCis.h
index d0f2ed0e58df5205045e2fdd6732fddb6c362a95..27b219aa3ffa3f05b1ee81841afb49e6fecd0e41 100644 (file)
--- 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.\r
   ///\r
   EfiGcdMemoryTypeMoreReliable,\r
-  EfiGcdMemoryTypeMaximum\r
+  // ///\r
+  // /// A memory region that describes system memory that has not been accepted\r
+  // /// by a corresponding call to the underlying isolation architecture.\r
+  // ///\r
+  // /// Please be noted:\r
+  // /// EfiGcdMemoryTypeUnaccepted is defined in PrePiDxeCis.h because it has not been\r
+  // /// defined in PI spec.\r
+  // EfiGcdMemoryTypeUnaccepted,\r
+  EfiGcdMemoryTypeMaximum = 8\r
 } EFI_GCD_MEMORY_TYPE;\r
 \r
 ///\r

diff --git a/MdePkg/Include/Uefi/UefiMultiPhase.h b/MdePkg/Include/Uefi/UefiMultiPhase.h
index 22bae43e36e89f31305f0a6d5949596b699f9e8c..7884913371a955aa28529adaf08b162cce5be39c 100644 (file)
--- 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.\r
   ///\r
   EfiPersistentMemory,\r
+  ///\r
+  /// A memory region that describes system memory that has not been accepted\r
+  /// by a corresponding call to the underlying isolation architecture.\r
+  ///\r
+  EfiUnacceptedMemoryType,\r
   EfiMaxMemoryType\r
 } EFI_MEMORY_TYPE;\r
 \r