audk/ArmPlatformPkg/ArmVExpressPkg/Library
Ard Biesheuvel d74135cd0f ArmPlatformPkg: remove EFI_MEMORY_UC attribute from normal memory
On ARM systems, mapping normal memory as device memory may have unintended
side effects, given that unaligned accesses or loads and stores with special
semantics (e.g., load/store exclusive) may fault or may not work as expected.
Similarly, DC ZVA instructions are only supported on normal memory, not
device memory.

So remove the EFI_MEMORY_UC attribute that we set by default on system RAM.
If any region requires this attribute, it is up to the driver to set this
attribute, and to ensure that no offending operations are performed on it.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2016-09-08 10:35:33 +01:00
..
ArmVExpressLibCTA9x4 ArmPlatformPkg/ArmVExpressPkg: switch to ASM_FUNC() asm macro 2016-08-11 13:25:05 +02:00
ArmVExpressLibCTA15-A7 ArmPlatformPkg/ArmVExpressPkg: switch to ASM_FUNC() asm macro 2016-08-11 13:25:05 +02:00
ArmVExpressLibRTSM ArmPlatformPkg: remove EFI_MEMORY_UC attribute from normal memory 2016-09-08 10:35:33 +01:00
ArmVExpressSecLibCTA9x4 ArmPlatformPkg/ArmVExpressPkg: switch to ASM_FUNC() asm macro 2016-08-11 13:25:05 +02:00
ArmVExpressSecLibRTSM ArmPkg ArmPlatformPkg ArmVirtPkg: ARM GICv2/v3 Base Address width fix-up 2016-09-08 09:16:01 +01:00
ArmVExpressSysConfigLib ArmVExpressPkg: restrict ArmVExpressSysConfigLib to SEC and DXE_DRIVER 2015-05-08 12:08:24 +00:00
ArmVExpressSysConfigRuntimeLib ArmPlatformPkg/ArmVExpressPkg: add ArmPlatformSysConfigLib for runtime 2015-07-10 15:08:15 +00:00
HdLcdArmVExpressLib ARM Packages: Removed trailing spaces 2014-08-19 13:29:52 +00:00
NorFlashArmVExpressLib ARM Packages: Removed trailing spaces 2014-08-19 13:29:52 +00:00
PL111LcdArmVExpressLib ArmPlatformPkg/ArmVExpressPkg: Added support to differentiate ARMv8 FVP variants 2015-02-25 19:15:39 +00:00
ResetSystemLib ARM Packages: Removed trailing spaces 2014-08-19 13:29:52 +00:00