[PATCH v2 0/4] SEV-SNP accepted memory and BeforeExitBootServices

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

This is the first half of the patch series

[PATCH v8 0/7] Add safe unaccepted memory behavior

These patches add SEV-SNP support for the MemoryAccept protocol, and
implement an already standardized mechanism for performing any actions
just before terminating the memory map.

We implement a standardized event group from UEFI v2.9,
EFI_EVENT_GROUP_BEFORE_EXIT_BOOT_SERVICES, since it provides exactly
the right invocation point for eagerly accepting memory if eager
acceptance has not been disabled (i.e., unaccepted memory is enabled).

The use of the BeforeExitBootServices addition will come in the second
half of this series.

Changes since v1:
  * Added EFI_EVENT_GROUP_AFTER_READY_TO_BOOT and interpretation.

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>
Cc: Andrew Fish <afish@apple.com>
Cc: "Michael D. Kinney" <michael.d.kinney@intel.com>

Signed-off-by: Dionna Glaze <dionnaglaze@google.com>

Dionna Glaze (4):
  OvmfPkg: Realize EfiMemoryAcceptProtocol in AmdSevDxe
  MdePkg: Add event groups for boot events
  MdeModulePkg: Notify BeforeExitBootServices in CoreExitBootServices
  MdePkg: Signal AfterReadyToBoot after ReadyToBoot

 MdeModulePkg/Core/Dxe/DxeMain.inf                                  |  1 +
 MdeModulePkg/Core/Dxe/DxeMain/DxeMain.c                            |  6 +++
 MdePkg/Include/Guid/EventGroup.h                                   | 10 ++++
 MdePkg/Include/Library/UefiLib.h                                   |  2 +
 MdePkg/Library/UefiLib/UefiLib.inf                                 |  1 +
 MdePkg/Library/UefiLib/UefiNotTiano.c                              | 18 +++++++
 MdePkg/MdePkg.dec                                                  |  8 ++-
 OvmfPkg/AmdSevDxe/AmdSevDxe.c                                      | 55 ++++++++++++++++++--
 OvmfPkg/AmdSevDxe/AmdSevDxe.inf                                    |  3 ++
 OvmfPkg/Library/BaseMemEncryptSevLib/X64/DxeSnpSystemRamValidate.c | 24 +++++++--
 10 files changed, 119 insertions(+), 9 deletions(-)

-- 
2.38.1.431.g37b22c650d-goog