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arm64: Update the page table list in locore

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The comment describing the page tables was out of date. Update it with
the current list.

Sponsored by:	Arm Ltd
This commit is contained in:
Andrew Turner 2024-04-24 11:23:42 +01:00
parent 719908c813
commit 634dd430b9
1 changed files with 5 additions and 3 deletions
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8
sys/arm64/arm64/locore.S
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@ -429,14 +429,16 @@ LEND(get_load_phys_addr)
* All the memory must not cross a 1GiB boundaty
* x28 contains the physical address we were loaded from
*
* TODO: This is out of date.
* There are at least 5 pages before that address for the page tables
* There are 7 or 8 pages before that address for the page tables
* The pages used are:
* - The Kernel L3 tables (only for 16k kernel)
* - The Kernel L2 table
* - The Kernel L1 table
* - The Kernel L0 table (TTBR1)
* - The identity (PA = VA) L2 table
* - The identity (PA = VA) L1 table
* - The identity (PA = VA) L0 table (TTBR0)
* - The identity (PA = VA) L0 table (Early TTBR0)
* - The Kernel empty L0 table (Late TTBR0)
*/
LENTRY(create_pagetables)
/* Save the Link register */