Re: [Xen-devel] [PATCH V2] xen/arm64: config: Correctly define VMAP_VIRT_END

[Julien Grall <julien.grall@xxxxxxx>]

Hi Peng,

On 01/06/16 08:51, Peng Fan wrote:
> The vmap initialization code (vm_init_type) will round down
> the end of the region to a page-aligned address.
>
> On ARM64, the default vmap region is located between 1G and 2G.
> Based on the initialization code, the end address is excluded
> of the region.
>
> Therefore the current definition of VMAP_VIRT_END will lead the
> vmap code to not use the last 4K of the region.
>
> Fix it by defining VMAP_VIRT_END as "VMAP_VIRT_START + GB(1)".
>
> Signed-off-by: Peng Fan <van.freenix@xxxxxxxxx>
> Cc: Julien Grall <julien.grall@xxxxxxx>
> Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>
Reviewed-by: Julien Grall <julien.grall@xxxxxxx>

Regards,

--
Julien Grall

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