linux-kernel - Re: [PATCH 01/10] x86/iommu: Add IOMMU_INIT macros, .iommu_table section, and iommu_table

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20100826181913.GA5947@merkur.ravnborg.org>
Date:	Thu, 26 Aug 2010 20:19:13 +0200
From:	Sam Ravnborg <sam@...nborg.org>
To:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc:	hpa@...or.com, fujita.tomonori@....ntt.co.jp,
	linux-kernel@...r.kernel.org, x86@...nel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH 01/10] x86/iommu: Add IOMMU_INIT macros, .iommu_table
	section, and iommu_table_entry structure.

> diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
> index d0bb522..b92e040 100644
> --- a/arch/x86/kernel/vmlinux.lds.S
> +++ b/arch/x86/kernel/vmlinux.lds.S
> @@ -260,6 +260,13 @@ SECTIONS
>  		*(.altinstr_replacement)
>  	}
>  
> +	.iommu_table : AT(ADDR(.iommu_table) - LOAD_OFFSET) {
> +		__iommu_table = .;
> +		*(.iommu_table)
> +		. = ALIGN(8);
> +		__iommu_table_end = .;
> +	}
> +

So we have yet another magic section in vmlinux.lds.S
A nice comemnt that expalins what this is used for and why
it is discardable etc. would be nice.

Lots of magic sections in same file miss this,
but thats not an example to follwow.

	Sam
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/