HCR_EL2 may contain fields that should be preserved (such as E2H, which
may be RES1 for all intents and purposes other than reading back the
register). So preserve the existing value when setting the TGE bit.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Following the discussion at [1] and as the ArmLib relies on them,
move ArmPkg/Chipset/ArmV7[|Mmu].h files to the MdePkg.
Update the path to correctly include the moved files.
[1] https://edk2.groups.io/g/devel/message/111566
Continuous-integration-options: PatchCheck.ignore-multi-package
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
When building ArmVirtQemuKernel with CLANGDWARF (which does not require
a GCC workaround where -mgeneral-regs-only is needed to ensure
-mstrict-align works as expected), the C code invoked from the PrePi
startup code may contain instructions that access the FP/SIMD register
file. This means that the FP/SIMD must be enabled before making such
calls, and this is currently not the case. So fix that, by moving the
call to ArmEnableVFP() early into the asm startup code.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
