[Linaro-acpi] Touching the initrd before paging_init

Jon Masters [off-list ref] writes:

On 12/15/2015 06:43 AM, M?ns Rullg?rd wrote:

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Jon Masters [off-list ref] writes:

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But the reading of that cpio content into the new table locations is
done using the kernel memcpy routine to early_ioremap'd memory (Device
memory), which is architecturally sensitive to missaligned accesses.

As others have pointed out, your error is twofold: first using
early_ioremap() when early_memremap() would do, then using regular
memcpy() and not memcpy_fromio() on that.  Seems like your precious ACPI
code is to blame here.

So I get that this could be changed. But I still want to understand
whether memcpy is behaving correctly.

It is.  I already explained why it's the correct way.

-- 
M?ns Rullg?rd