Re: [Xen-devel] [PATCH] x86/EFI: fix runtime call status for compat mode Dom0

[Keir Fraser <keir.xen@xxxxxxxxx>]

On 26/04/2013 14:35, "Jan Beulich" <JBeulich@xxxxxxxx> wrote:

> The top two bits (indicating error/warning classification) need to
> remain the top two bits.
> 
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

Acked-by: Keir Fraser <keir@xxxxxxx>

> --- a/xen/arch/x86/efi/runtime.c
> +++ b/xen/arch/x86/efi/runtime.c
> @@ -531,7 +531,7 @@ int efi_runtime_call(struct xenpf_efi_ru
>  #ifndef COMPAT
>      op->status = status;
>  #else
> -    op->status = (status & 0x3fffffff) | (status >> 62);
> +    op->status = (status & 0x3fffffff) | ((status >> 32) & 0xc0000000);
>  #endif
>  
>      return rc;
> 
> 
> 
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