[PATCH 4/4] arm64: align PHYS_OFFSET to block size

[Ard Biesheuvel]

On 25 March 2015 at 15:14, Catalin Marinas <catalin.marinas at arm.com> wrote:
> On Mon, Mar 23, 2015 at 04:36:56PM +0100, Ard Biesheuvel wrote:
>> This aligns PHYS_OFFSET down to an alignment that allows system
>> RAM to be mapped using the largest blocks available, i.e., 1 GB
>> blocks on 4 KB pages or 512 MB blocks on 64 KB pages.
>
> Does this assume that the platform RAM starts at such block aligned
> addresses? If not, is the unaligned range ignored?
>

No, it doesn't. The unaligned range is not mapped by the early code
(it only maps from the start of image)
Later on, it just maps whatever is in the DT nodes.