linux-kernel - Re: [PATCH 09/10] iommu/amd: Clear the iommu pre enabled setting

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 for Android: free password hash cracker in your pocket

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

Message-ID: <20150929160949.GP3036@8bytes.org>
Date:	Tue, 29 Sep 2015 18:09:49 +0200
From:	Joerg Roedel <joro@...tes.org>
To:	Baoquan He <bhe@...hat.com>
Cc:	iommu@...ts.linux-foundation.org, kexec@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 09/10] iommu/amd: Clear the iommu pre enabled setting

On Thu, Sep 24, 2015 at 02:37:35PM +0800, Baoquan He wrote:
> @@ -2469,6 +2469,8 @@ static dma_addr_t __map_single(struct device *dev,
>  	unsigned long align_mask = 0;
>  	int i;
>  
> +	if (translation_pre_enabled())
> +		clear_translation_pre_enabled();

There is probably a better place to do this somewhere in the
initialization state machine of the AMD IOMMU driver.


	Joerg

--
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/