Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1636508

Re: [PATCH v5 13/32] x86/boot/e820: Add support to determine the E820 type of an address

From Borislav Petkov <bp@alien8.de>
Newsgroups linux.kernel
Subject Re: [PATCH v5 13/32] x86/boot/e820: Add support to determine the E820 type of an address
Date 2017-05-05 19:20 +0200
Message-ID <tDP3A-4H2-9@gated-at.bofh.it> (permalink)
References <txTMB-1zl-13@gated-at.bofh.it> <tDP3A-4H2-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


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.

Good mailing practices for 400: avoid top-posting and trim the reply.

Back to linux.kernel | Previous | NextNext in thread | Find similar | Unroll thread


Thread

Re: [PATCH v5 13/32] x86/boot/e820: Add support to determine the  E820 type of an address Borislav Petkov <bp@alien8.de> - 2017-05-05 19:20 +0200
  Re: [PATCH v5 13/32] x86/boot/e820: Add support to determine the E820  type of an address Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2017-05-06 09:50 +0200

csiph-web