linux-kernel - Re: [PATCH -v2] EFI: Runtime services virtual mapping

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Date:	Mon, 23 Sep 2013 10:45:14 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	X86 ML <x86@...nel.org>
Cc:	LKML <linux-kernel@...r.kernel.org>, Borislav Petkov <bp@...e.de>,
	Matt Fleming <matt@...sole-pimps.org>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	James Bottomley <James.Bottomley@...senPartnership.com>,
	Vivek Goyal <vgoyal@...hat.com>,
	Dave Young <dyoung@...hat.com>, linux-efi@...r.kernel.org
Subject: Re: [PATCH -v2] EFI: Runtime services virtual mapping

On Sat, Sep 21, 2013 at 01:39:29PM +0200, Borislav Petkov wrote:
> -void __init efi_call_phys_prelog(void)
> +/*
> + * We allocate runtime services regions top-down, starting from -4G, i.e.
> + * 0xffff_ffff_0000_0000 and limit EFI VA mapping space to 64G.
> + */
> +static u64 efi_va	 = -4 * (1UL << 30);
> +#define EFI_VA_END	 (-68 * (1UL << 30))

Note to self: add this range to Documentation/x86/x86_64/mm.txt

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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