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Date: Fri, 5 May 2017 19:11:55 +0200
From: Borislav Petkov <bp@alien8.de>
To: Tom Lendacky <thomas.lendacky@amd.com>
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Subject: Re: [PATCH v5 13/32] x86/boot/e820: Add support to determine the
 E820 type of an address
Message-ID: <20170505171155.4fm22ks6m5j7lpjm@pd.tnic>
References: <20170418211612.10190.82788.stgit@tlendack-t1.amdoffice.net>
 <20170418211831.10190.80158.stgit@tlendack-t1.amdoffice.net>
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On Tue, Apr 18, 2017 at 04:18:31PM -0500, Tom Lendacky wrote:
> Add a function that will return the E820 type associated with an address
> range.

...

> @@ -110,9 +111,28 @@ bool __init e820__mapped_all(u64 start, u64 end, enum e820_type type)
>  		 * coverage of the desired range exists:
>  		 */
>  		if (start >= end)
> -			return 1;
> +			return entry;
>  	}
> -	return 0;
> +
> +	return NULL;
> +}
> +
> +/*
> + * This function checks if the entire range <start,end> is mapped with type.
> + */
> +bool __init e820__mapped_all(u64 start, u64 end, enum e820_type type)
> +{
> +	return __e820__mapped_all(start, end, type) ? 1 : 0;

	return !!__e820__mapped_all(start, end, type);

-- 
Regards/Gruss,
    Boris.

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