linux-kernel - Re: [PATCH resend] pci: ARI is a PCIe v2 feature

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] [day] [month] [year] [list]

Date:	Fri, 22 Jul 2011 08:44:08 -0700
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	Chris Wright <chrisw@...s-sol.org>
Cc:	linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
	Don Dutile <ddutile@...hat.com>
Subject: Re: [PATCH resend] pci: ARI is a PCIe v2 feature

On Wed, 13 Jul 2011 10:14:33 -0700
Chris Wright <chrisw@...s-sol.org> wrote:

> The function pci_enable_ari() may mistakenly set the downstream port
> of a v1 PCIe switch in ARI Forwarding mode.  This is a PCIe v2 feature,
> and with an SR-IOV device on that switch port believing the switch above
> is ARI capable it may attempt to use functions 8-255, translating into
> invalid (non-zero) device numbers for that bus.  This has been seen
> to cause Completion Timeouts and general misbehaviour including hangs
> and panics.

Applied, thanks.

-- 
Jesse Barnes, Intel Open Source Technology Center
--
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/