Re: [PATCH] mini-os: fix do_map_frames() for pvh

[Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>]

Juergen Gross, le sam. 15 août 2020 13:12:57 +0200, a ecrit:
> In case ov PVH dom_map_frames() is missing to increment the virtual
> address. This leads to writing only the first page table entry multiple
> times.
> 
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>

Reviewed-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>

> ---
>  arch/x86/mm.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/x86/mm.c b/arch/x86/mm.c
> index ea58444..8ba14a5 100644
> --- a/arch/x86/mm.c
> +++ b/arch/x86/mm.c
> @@ -695,6 +695,7 @@ int do_map_frames(unsigned long va,
>          pgt[l1_table_offset(va)] = (pgentry_t)
>              (((mfns[done * stride] + done * incr) << PAGE_SHIFT) | prot);
>          done++;
> +        va += PAGE_SIZE;
>  #endif
>      }
>  
> -- 
> 2.26.2
> 

-- 
Samuel
j'etais en train de nettoyer ma souris et le coup est parti...
 -+- s sur #ens-mim - et en plus c vrai... -+-