AsmMacroIoLib.h and AsmMacroIoLibV8.h are used by the
CompilerIntrinsicsLib, which is moving to MdePkg. These
functions provide standard definitions for ARM/AARCH64
assembly code, respectively, and so are moved to the arch
directories in MdePkg to avoid MdePkg having a
dependency on ArmPkg.
Now that the files are in Arm/ and AArch64/ directories,
the filenames are changed to AsmMacroLib.h as we can
distinguish the architecture from the path.
AsmMacroIoLib.inc is unused and so is removed.
Continuous-integration-options: PatchCheck.ignore-multi-package
Signed-off-by: Oliver Smith-Denny <osde@linux.microsoft.com>
Drop logic from the ARM architectural support libraries that can only
execute in EL3 on AArch64 or Monitor mode on 32-bit ARM. While early
32-bit ports (and even some early 64-bit code) included some monitor
logic in EDK2, UEFI per the spec runs in non-secure execution contexts
only, and secure monitor and other secure world duties are usually
delegated to TF-A (Trusted Firmware for the A profile).
Since there are no longer users of this code in EDK2 or the
edk2-platforms tree, let's remove it from the core support libraries.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Add a helper function that returns the maximum physical address space
size as supported by the current CPU.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Given that these days, our ARM port only supports ARMv7 and later, we
can assume that the page table walker's memory accesses are cache
coherent, and so there is no need to perform cache maintenance. It
does require the page tables themselves to reside in memory mapped as
writeback cacheable so ASSERT() that this is the case.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
This currently isn't needed by anything in the edk2 tree but
it's useful for externally maintained platforms which have
to set this register e.g. to disable alignment aborts.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Michael Zimmermann <sigmaepsilon92@gmail.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
For historical reasons, the files under ArmLib are split up into 'common'
files under Common/, containing common C files as well as AArch64 and Arm
specific asm files, and ArmV7 and AArch64 files under ArmV7/ and AArch64/,
respectively. This presumably dates back to the time when ArmLib supported
different revisions of the 32-bit architecture (i.e., pre-V7)
Since the PI spec requires V7 or later, we can simplify this to Arm/ and
AArch64, which aligns ArmLib with the majority of other modules that carry
ARM or AArch64 specific code.
So move the files around so that shared files live at the same level as
ArmBaseLib.inf, and ARM/AArch64 specific files live in Arm/ or AArch64/,
respectively.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Oliver Smith-Denny
Ard Biesheuvel
Michael D Kinney
Ard Biesheuvel
Michael Zimmermann