Ard Biesheuvel b5d89de167 ArmPkg/AArch64Mmu: use correct AP[] bits in ArmClearMemoryRegionReadOnly
The function ArmClearMemoryRegionReadOnly() was supposed to undo the
effect of ArmSetMemoryRegionReadOnly(), but instead, it sets the permissions
to EL0-no access, EL1-read-only. Since the EL0 bit should be 1 to align
with EL2/3 (where the bit is SBO), use TT_AP_RW_RW instead, which makes the
entry read-write for EL0 when executing at EL1, and read-write for all other
levels.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2016-03-22 17:32:25 +01:00
2014-10-14 16:08:15 +00:00
2014-10-14 16:08:15 +00:00
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Acidanthera UEFI Development Kit based on EDK II edk2-stable202405
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