Thanks Olivier!
On 4 December 2013 07:50, Olivier Martin <olivier.mar...@arm.com> wrote:
> Important note, to make this support works you will need to ensure this
> PCD is not present in your DSC file:
>
> gEmbeddedTokenSpaceGuid.PcdPrePiCpuMemorySize|32
>
>
>
> Otherwise, only the 32-bit address space will be accessible in UEFI.
>
>
>
>
>
> *From:* Olivier Martin [mailto:olivier.mar...@arm.com]
> *Sent:* 28 November 2013 22:00
>
> *To:* edk2-devel@lists.sourceforge.net; linaro-uefi-internal
> *Cc:* edk2-buildtools-de...@lists.sourceforge.net
> *Subject:* [PATCH] Enabling DRAM above the 32bit address space on AArch64
>
>
>
> Here is the patch to enable DRAM region located above the 32-bit address
> space in UEFI.
>
> This patch works fine on AArch64. It needs to be applied on SVN rev 14915
> (2013-11-28 21:40:48).
>
>
>
> This change has been validated on the FVP AArch64 model using 4GB
>
> of DRAM at 0x8_0000_0000:
>
>
>
> - # System Memory (2GB)
>
> - gArmTokenSpaceGuid.PcdSystemMemoryBase|0x80000000
>
> - gArmTokenSpaceGuid.PcdSystemMemorySize|0x80000000
>
> + # System Memory (4GB)
>
> + gArmTokenSpaceGuid.PcdSystemMemoryBase|0x800000000
>
> + gArmTokenSpaceGuid.PcdSystemMemorySize|0x100000000
>
>
>
> EFI Shell and Linux kernel boot successfully on this use case.
>
>
>
> This patch breaks the AArch32 builds. The compilers do not recognize the
> format 0x800000000ULL (ie: the ‘ULL’).
>
> To fix the AArch32 build you need to change
> BaseTools/Conf/build_rule.template such as:
>
>
>
> --- a/BaseTools/Conf/build_rule.template
>
> +++ b/BaseTools/Conf/build_rule.template
>
> @@ -166,7 +166,7 @@
>
>
>
> <Command.GCC, Command.RVCT>
>
> "$(PP)" $(PP_FLAGS) $(INC) ${src} > ${d_path}(+)${s_base}.i
>
> - Trim --source-code -o ${d_path}(+)${s_base}.iii
> ${d_path}(+)${s_base}.i
>
> + Trim --trim-long --source-code -o ${d_path}(+)${s_base}.iii
> ${d_path}(+)${s_base}.i
>
> # For RVCTCYGWIN ASM_FLAGS must be first to work around pathing
> issues
>
> "$(ASM)" $(ASM_FLAGS) -o ${dst} $(INC) ${d_path}(+)${s_base}.iii
>
>
>
> I will push this change in SVN repository when this change will be
> accepted by the BaseTools team and rollback into the SVN EDK2.
>
>
>
> Contributed-under: TianoCore Contribution Agreement 1.0
>
> Signed-off-by: Olivier Martin olivier.mar...@arm.com
>
>
>
> Thanks,
>
> Olivier
>
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