Re: [PATCH v2 14/16] Xen: EFI: Parse DT parameters for Xen specific UEFI

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On Fri, Jan 15, 2016 at 02:55:27PM +0800, Shannon Zhao wrote:
> From: Shannon Zhao <shannon.zhao@xxxxxxxxxx>
> 
> Add a new function to parse DT parameters for Xen specific UEFI just
> like the way for normal UEFI. Then it could reuse the existing codes.
> 
> Signed-off-by: Shannon Zhao <shannon.zhao@xxxxxxxxxx>
> ---
>  drivers/firmware/efi/efi.c | 45 ++++++++++++++++++++++++++++++++++++++-------
>  1 file changed, 38 insertions(+), 7 deletions(-)

> @@ -520,15 +531,28 @@ static int __init fdt_find_uefi_params(unsigned long node, const char *uname,
>  				       int depth, void *data)
>  {
>  	struct param_info *info = data;
> +	struct params *dt_params;
> +	unsigned int size;
>  	const void *prop;
>  	void *dest;
>  	u64 val;
>  	int i, len;
>  
> -	if (depth != 1 || strcmp(uname, "chosen") != 0)
> -		return 0;
> +	if (efi_enabled(EFI_PARAVIRT)) {
> +		if (depth != 2 || strcmp(uname, "uefi") != 0)
> +			return 0;

Please check the full path rather than the leaf node name alone.

Mark.
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