REF:https://bugzilla.tianocore.org/show_bug.cgi?id=2982
The workaround in the UEFI memmap construction, near the end of the function CoreGetMemoryMap() [MdeModulePkg/Core/Dxe/Mem/Page.c] should not clear the SP and CRYPTO bits, because OSes do (apparently) correctly interpret SP and CRYPTO as capabilities, and not as currently set attributes (upon which the OSes should set their page tables). For this reason, the SP and CRYPTO bits should be separated from the bitmask that we use for hiding the page-access attributes, in the workaround Signed-off-by: Malgorzata Kukiello <jacek.kukie...@intel.com> Cc: Michael D Kinney <michael.d.kin...@intel.com> Cc: Jian J Wang <jian.j.w...@intel.com> Cc: Hao A Wu <hao.a...@intel.com> Cc: Dandan Bi <dandan...@intel.com> Cc: Liming Gao <gaolim...@byosoft.com.cn> Cc: Zhiguang Liu <zhiguang....@intel.com> Cc: Oleksiy Yakovlev <oleks...@ami.com> Cc: Ard Biesheuvel (ARM address) <ard.biesheu...@arm.com> MdeModulePkg/Core/Dxe/Mem/Page.c | 12 ++++++------ MdePkg/Include/Uefi/UefiSpec.h | 3 ++- 2 files changed, 8 insertions(+), 7 deletions(-) --------------------------------------------------------------------- Intel Technology Poland sp. z o.o. ul. Sowackiego 173 | 80-298 Gdask | Sd Rejonowy Gdask Pnoc | VII Wydzia Gospodarczy Krajowego Rejestru Sdowego - KRS 101882 | NIP 957-07-52-316 | Kapita zakadowy 200.000 PLN. Ta wiadomo wraz z zacznikami jest przeznaczona dla okrelonego adresata i moe zawiera informacje poufne. W razie przypadkowego otrzymania tej wiadomoci, prosimy o powiadomienie nadawcy oraz trwae jej usunicie; jakiekolwiek przegldanie lub rozpowszechnianie jest zabronione. This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). If you are not the intended recipient, please contact the sender and delete all copies; any review or distribution by others is strictly prohibited. -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#65566): https://edk2.groups.io/g/devel/message/65566 Mute This Topic: https://groups.io/mt/77056340/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
