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 <a...@kernel.org> Cc: "Min M. Xu" <min.m...@intel.com> Cc: Gerd Hoffmann <kra...@redhat.com> Cc: James Bottomley <j...@linux.ibm.com> Cc: Tom Lendacky <thomas.lenda...@amd.com> Cc: Jiewen Yao <jiewen....@intel.com> Cc: Erdem Aktas <erdemak...@google.com> Cc: Andrew Fish <af...@apple.com> Cc: "Michael D. Kinney" <michael.d.kin...@intel.com> Signed-off-by: Dionna Glaze <dionnagl...@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 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#96104): https://edk2.groups.io/g/devel/message/96104 Mute This Topic: https://groups.io/mt/94900162/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
