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RE: [PATCH v4 07/14] xen/arm32: head: Jump to the runtime mapping in enable_mmu()
- To: Julien Grall <julien@xxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Henry Wang <Henry.Wang@xxxxxxx>
- Date: Sat, 14 Jan 2023 01:33:39 +0000
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- Cc: Luca Fancellu <Luca.Fancellu@xxxxxxx>, Julien Grall <jgrall@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Bertrand Marquis <Bertrand.Marquis@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
- Delivery-date: Sat, 14 Jan 2023 01:34:06 +0000
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- Thread-topic: [PATCH v4 07/14] xen/arm32: head: Jump to the runtime mapping in enable_mmu()
Hi Julien,
> -----Original Message-----
> Subject: [PATCH v4 07/14] xen/arm32: head: Jump to the runtime mapping in
> enable_mmu()
>
> From: Julien Grall <jgrall@xxxxxxxxxx>
>
> At the moment, enable_mmu() will return to an address in the 1:1 mapping
> and each path is responsible to switch to the runtime mapping.
>
> In a follow-up patch, the behavior to switch to the runtime mapping
> will become more complex. So to avoid more code/comment duplication,
> move the switch in enable_mmu().
>
> Lastly, take the opportunity to replace load from literal pool with
> mov_w.
>
> Signed-off-by: Julien Grall <jgrall@xxxxxxxxxx>
> Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
I've tested this patch on FVP in arm32 execution mode, and
this patch is good, so:
Tested-by: Henry Wang <Henry.Wang@xxxxxxx>
Kind regards,
Henry
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