On 09/24/20 12:21, Malgorzata Kukiello wrote: > 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(-)
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