linux-kernel - Re: [stable][PATCH] PCIe hot-plug for Intel IOMMU

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]

Date:	Thu, 12 Nov 2009 02:37:15 +0000
From:	David Woodhouse <dwmw2@...radead.org>
To:	Fenghua Yu <fenghua.yu@...el.com>
Cc:	Greg KH <gregkh@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	torvalds@...ux-foundation.org, jbarnes@...tuousgeek.org,
	Yinghai Lu <yhlu.kernel@...il.com>, stable@...nel.org,
	iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [stable][PATCH] PCIe hot-plug for Intel IOMMU

On Wed, 2009-11-11 at 07:23 -0800, Fenghua Yu wrote:
> To support PCIe hot plug in IOMMU, we register a notifier to respond to device
> change action.
> 
> When the notifier gets BUS_NOTIFY_UNBOUND_DRIVER, it removes the device from its
> DMAR domain.
> 
> A hot added device will be added into an IOMMU domain when it first does IOMMU
> op. So there is no need to add more code for hot add.
> 
> Without the patch, after a hot-remove, a hot-added device on the same slot will
> not work.
> 
> Signed-off-by: Fenghua Yu <fenghua.yu@...el.com>
> 
> ---
> 
> The patch missed 2.6.32 release. Could it be in 2.6.32 stable?

Not strictly a regression, but it would make a lot of sense.

Fenghua, please could you test what's in
git://git.infradead.org/~dwmw2/iommu-2.6.32.git on IA64 before I send it
to Linus? There are a couple of other fixes for HP brain damage there.


-- 
dwmw2

--
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/