[PATCH v8 2/7] MdePkg: Add EFI_EVENT_BEFORE_EXIT_BOOT_SERVICES_GUID

["Dionna Glaze" <dionnaglaze@google.com>]

Event group as defined in UEFI standard v2.9.

Cc: Ard Biescheuvel <ardb@kernel.org>
Cc: "Min M. Xu" <min.m.xu@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Tom Lendacky <Thomas.Lendacky@amd.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Erdem Aktas <erdemaktas@google.com>

Signed-off-by: Dionna Glaze <dionnaglaze@google.com>
---
 MdePkg/Include/Guid/EventGroup.h | 5 +++++
 MdePkg/MdePkg.dec                | 5 ++++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/MdePkg/Include/Guid/EventGroup.h b/MdePkg/Include/Guid/EventGroup.h
index 063d1f7157..64bfd4bab9 100644
--- a/MdePkg/Include/Guid/EventGroup.h
+++ b/MdePkg/Include/Guid/EventGroup.h
@@ -14,6 +14,11 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 
 extern EFI_GUID  gEfiEventExitBootServicesGuid;
 
+#define EFI_EVENT_GROUP_BEFORE_EXIT_BOOT_SERVICES \
+  { 0x8be0e274, 0x3970, 0x4b44, { 0x80, 0xc5, 0x1a, 0xb9, 0x50, 0x2f, 0x3b, 0xfc } }
+
+extern EFI_GUID  gEfiEventBeforeExitBootServicesGuid;
+
 #define EFI_EVENT_GROUP_VIRTUAL_ADDRESS_CHANGE \
   { 0x13fa7698, 0xc831, 0x49c7, { 0x87, 0xea, 0x8f, 0x43, 0xfc, 0xc2, 0x51, 0x96 } }
 
diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
index 6b6bfbec29..359a85ea10 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -408,7 +408,10 @@
   gEfiEventMemoryMapChangeGuid   = { 0x78BEE926, 0x692F, 0x48FD, { 0x9E, 0xDB, 0x01, 0x42, 0x2E, 0xF0, 0xD7, 0xAB }}
 
   ## Include/Guid/EventGroup.h
-  gEfiEventVirtualAddressChangeGuid = { 0x13FA7698, 0xC831, 0x49C7, { 0x87, 0xEA, 0x8F, 0x43, 0xFC, 0xC2, 0x51, 0x96 }}
+  gEfiEventVirtualAddressChangeGuid   = { 0x13FA7698, 0xC831, 0x49C7, { 0x87, 0xEA, 0x8F, 0x43, 0xFC, 0xC2, 0x51, 0x96 }}
+
+  ## Include/Guid/EventGroup.h
+  gEfiEventBeforeExitBootServicesGuid = { 0x8BE0E274, 0x3970, 0x4B44, { 0x80, 0xC5, 0x1A, 0xB9, 0x50, 0x2F, 0x3B, 0xFC }}
 
   ## Include/Guid/EventGroup.h
   gEfiEventExitBootServicesGuid  = { 0x27ABF055, 0xB1B8, 0x4C26, { 0x80, 0x48, 0x74, 0x8F, 0x37, 0xBA, 0xA2, 0xDF }}
-- 
2.38.0.135.g90850a2211-goog