Re: [Minios-devel] [PATCH v3 19/43] arm64: add shared_info support

[Julien Grall <julien.grall@xxxxxxx>]

Hi,

On 16/04/2018 07:31, Huang Shijie wrote:
> Add the shared_info page.
>
> Signed-off-by: Huang Shijie <shijie.huang@xxxxxxx>
> ---
>   arch/arm/arm64/arm64.S | 3 +++
>   1 file changed, 3 insertions(+)
>
> diff --git a/arch/arm/arm64/arm64.S b/arch/arm/arm64/arm64.S
> index 9eb7ea0..fa3406f 100644
> --- a/arch/arm/arm64/arm64.S
> +++ b/arch/arm/arm64/arm64.S
> @@ -25,6 +25,7 @@
>       .globl boot_l2_pgtable
>       .globl idmap_l0_pgtable
>       .globl idmap_l1_pgtable
> +    .globl shared_info
>   
>       .align 12
>   boot_l0_pgtable:
> @@ -37,6 +38,8 @@ idmap_l0_pgtable:
>       .fill  PAGE_SIZE,1,0
>   idmap_l1_pgtable:
>       .fill  PAGE_SIZE,1,0
> +shared_info:
> +    .fill  PAGE_SIZE,1,0
Why does it have to be defined in assembly? Can't this be done in C? Or 
even better allocated dynamically.
Cheers,

--
Julien Grall

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