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. 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 (3): OvmfPkg: Realize EfiMemoryAcceptProtocol in AmdSevDxe MdePkg: Add EFI_EVENT_BEFORE_EXIT_BOOT_SERVICES_GUID MdeModulePkg: Notify BeforeExitBootServices in CoreExitBootServices MdeModulePkg/Core/Dxe/DxeMain.inf | 1 + MdeModulePkg/Core/Dxe/DxeMain/DxeMain.c | 6 +++ MdePkg/Include/Guid/EventGroup.h | 5 ++ MdePkg/MdePkg.dec | 5 +- OvmfPkg/AmdSevDxe/AmdSevDxe.c | 55 ++++++++++++++++++-- OvmfPkg/AmdSevDxe/AmdSevDxe.inf | 3 ++ OvmfPkg/Library/BaseMemEncryptSevLib/X64/DxeSnpSystemRamValidate.c | 24 +++++++-- 7 files changed, 90 insertions(+), 9 deletions(-) -- 2.38.1.431.g37b22c650d-goog -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#96088): https://edk2.groups.io/g/devel/message/96088 Mute This Topic: https://groups.io/mt/94894284/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
