mirror of https://github.com/acidanthera/audk.git
bdb10148fc
The UEFI spec stipulates that unaligned accesses should be enabled on CPUs that support them, which means all of them, given that we no longer support pre-v7 ARM cores, and the AARCH64 bindings mandate support for unaligned accesses unconditionally. This means that one should not assume that CopyMem () is safe to call on regions that may be mapped using device attributes, which is the case for the NOR flash. Since we have no control over the mappings when running under the OS, and given that write accesses require device mappings, we should not call CopyMem () in the read path either, but use our own implementation that is guaranteed to take alignment into account. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org> |
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| ArmTrustZone | ||
| LcdGraphicsOutputDxe | ||
| NorFlashDxe | ||
| PL011Uart | ||
| PL34xDmc | ||
| PL35xSmc | ||
| PL061GpioDxe | ||
| PL180MciDxe | ||
| PL301Axi | ||
| PL310L2Cache | ||
| SP804TimerDxe | ||
| SP805WatchdogDxe | ||