On 09.08.2024 18:19, Oleksii Kurochko wrote:
> Introduce arch_pmap_{un}map functions and select HAS_PMAP for CONFIG_RISCV.
>
> Add pte_from_mfn() for use in arch_pmap_map().
>
> Introduce flush_xen_tlb_one_local() and use it in arch_pmap_{un}map().
>
> Signed-off-by: Oleksii Kurochko <oleksii.kuroc...@gmail.com>
Reviewed-by: Jan Beulich <jbeul...@suse.com>
> ---
> Changes in V4:
> - mark arch_pmap_{un}map() as __init: documentation purpose and
> a necessary (but not sufficient) condition here, to validly
> use local TLB flushes only.
> - add flush_xen_tlb_one_local() to arch_pmap_map() as absense of
> "negative" TLB entrues will be guaranted only in the case
> when Svvptc extension is present.
> - s/mfn_from_pte/pte_from_mfn
> - drop flush_xen_tlb_range_va_local() as it isn't used in this patch
Just as a remark: This and ...
> - drop mfn_to_xen_entry() as pte_from_mfn() does the same thing
> - add flags argument to pte_from_mfn().
> - update the commit message.
> - s/flush_xen_tlb_range_va_local/flush_tlb_range_va_local
... this don't go together very well.
Jan
