[U-Boot] [PATCH 1/3] x86: Change 4-level page table base address to low memory

Bin Meng bmeng.cn at gmail.com
Thu Jan 31 23:40:36 UTC 2019


Hi Alex,

On Fri, Feb 1, 2019 at 2:30 AM Alexander Graf <agraf at suse.de> wrote:
>
>
>
> > Am 31.01.2019 um 17:22 schrieb Bin Meng <bmeng.cn at gmail.com>:
> >
> > At present the 4-level page table base address for 64-bit U-Boot
> > proper is assigned an address that conflicts with CONFIG_LOADADDR.
> > Change it to an address within the low memory range instead.
>
> Can't you dynamically allocate the PT too?
>

The dynamically allocated PT only makes sense when in SPL. It then
becomes an arbitrary address again when entering in the 64-bit proper.

Regards,
Bin


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