Re: [edk2-devel] [PATCH v4] add ArmCpuInfo EFI application

["Marcin Juszkiewicz" <marcin.juszkiewicz@linaro.org>]

W dniu 7.04.2023 o 16:02, Marcin Juszkiewicz via groups.io pisze:
> +++ b/ArmPkg/Application/ArmCpuInfo/readregs.S
> @@ -0,0 +1,41 @@
> +#include <AsmMacroIoLibV8.h>
> +
> +ASM_FUNC(ReadAa64Pfr0El1)
> +        mrs x0, ID_AA64PFR0_EL1
> +        ret
> +
> +ASM_FUNC(ReadAa64Pfr1El1)
> +        mrs x0, ID_AA64PFR1_EL1
> +        ret
> +
> +ASM_FUNC(ReadAa64Dfr0El1)
> +        mrs x0, ID_AA64DFR0_EL1
> +        ret
> +
> +ASM_FUNC(ReadAa64Dfr1El1)
> +        mrs x0, ID_AA64DFR1_EL1
> +        ret
> +
> +ASM_FUNC(ReadAa64Isar0El1)
> +        mrs x0, ID_AA64ISAR0_EL1
> +        ret
> +
> +ASM_FUNC(ReadAa64Isar1El1)
> +        mrs x0, ID_AA64ISAR1_EL1
> +        ret
> +
> +ASM_FUNC(ReadAa64Isar2El1)
> +        mrs x0, ID_AA64ISAR2_EL1
> +        ret
> +
> +ASM_FUNC(ReadAa64Mmfr0El1)
> +        mrs x0, ID_AA64MMFR0_EL1
> +        ret
> +
> +ASM_FUNC(ReadAa64Mmfr1El1)
> +        mrs x0, ID_AA64MMFR1_EL1
> +        ret
> +
> +ASM_FUNC(ReadAa64Mmfr2El1)
> +        mrs x0, ID_AA64MMFR2_EL1
> +        ret

Those functions probably should be moved to 
ArmPkg/Library/ArmLib/AArch64/ code. But I do not understand EDK2 
buildbuildsystem enough to sort that part out.