From: Julien Grall <julien.grall@linaro.org>
To: "Roger Pau Monné" <roger.pau@citrix.com>
Cc: "Edgar E. Iglesias" <edgar.iglesias@xilinx.com>,
Stefano Stabellini <sstabellini@kernel.org>,
Wei Chen <Wei.Chen@arm.com>, Steve Capper <Steve.Capper@arm.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Jiandi An <anjiandi@codeaurora.org>,
Punit Agrawal <punit.agrawal@arm.com>,
alistair.francis@xilinx.com,
Shanker Donthineni <shankerd@codeaurora.org>,
xen-devel <xen-devel@lists.xenproject.org>,
"manish.jaggi@caviumnetworks.com"
<manish.jaggi@caviumnetworks.com>,
Campbell Sean <scampbel@codeaurora.org>
Subject: Re: [early RFC] ARM PCI Passthrough design document
Date: Mon, 13 Feb 2017 16:22:50 +0000 [thread overview]
Message-ID: <c55cd083-43aa-ba98-afae-ed05950907ec@linaro.org> (raw)
In-Reply-To: <20170202154012.ic2iutkgnu5l6axv@dhcp-3-221.uk.xensource.com>
Hi Roger,
On 02/02/17 15:40, Roger Pau Monné wrote:
> On Wed, Feb 01, 2017 at 07:04:43PM +0000, Julien Grall wrote:
>> Or maybe we could avoid mapping the doorbell in the guest and let Xen
>> receive an SMMU abort. When receiving the SMMU abort, Xen could sanitize the
>> value and write into the real MSI doorbell. Not sure if it would works
>> thought.
>
> AFAIK (and I might be wrong) you can only know the address that caused the
> fault, but not the data that was attempted to be written there. TBH, I wouldn't
> expect this approach to work.
You are right, I got confused with the data abort path. So I guess there
is no way to do secure MSI in this case :/
Cheers,
>
> Roger.
>
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next prev parent reply other threads:[~2017-02-13 16:22 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-29 14:04 [early RFC] ARM PCI Passthrough design document Julien Grall
2016-12-29 14:16 ` Jaggi, Manish
2016-12-29 17:03 ` Julien Grall
2016-12-29 18:41 ` Jaggi, Manish
2016-12-29 19:38 ` Julien Grall
2017-01-04 0:24 ` Stefano Stabellini
2017-01-24 14:28 ` Julien Grall
2017-01-24 20:07 ` Stefano Stabellini
2017-01-25 11:21 ` Roger Pau Monné
2017-01-25 18:53 ` Julien Grall
2017-01-31 16:53 ` Edgar E. Iglesias
2017-01-31 17:09 ` Julien Grall
2017-01-31 19:06 ` Edgar E. Iglesias
2017-01-31 22:08 ` Stefano Stabellini
2017-02-01 19:04 ` Julien Grall
2017-02-01 19:31 ` Stefano Stabellini
2017-02-01 20:24 ` Julien Grall
2017-02-02 15:33 ` Edgar E. Iglesias
2017-02-02 23:12 ` Stefano Stabellini
2017-02-02 23:44 ` Edgar E. Iglesias
2017-02-10 1:01 ` Stefano Stabellini
2017-02-13 15:39 ` Julien Grall
2017-02-13 19:59 ` Stefano Stabellini
2017-02-14 17:21 ` Julien Grall
2017-02-14 18:20 ` Stefano Stabellini
2017-02-14 20:18 ` Julien Grall
2017-02-13 15:35 ` Julien Grall
2017-02-22 4:03 ` Edgar E. Iglesias
2017-02-23 16:47 ` Julien Grall
2017-03-02 21:13 ` Edgar E. Iglesias
2017-02-02 15:40 ` Roger Pau Monné
2017-02-13 16:22 ` Julien Grall [this message]
2017-01-31 21:58 ` Stefano Stabellini
2017-02-01 20:12 ` Julien Grall
2017-02-01 10:55 ` Roger Pau Monné
2017-02-01 18:50 ` Stefano Stabellini
2017-02-10 9:48 ` Roger Pau Monné
2017-02-10 10:11 ` Paul Durrant
2017-02-10 12:57 ` Roger Pau Monne
2017-02-10 13:02 ` Paul Durrant
2017-02-10 21:04 ` Stefano Stabellini
2017-02-02 12:38 ` Julien Grall
2017-02-02 23:06 ` Stefano Stabellini
2017-03-08 19:06 ` Julien Grall
2017-03-08 19:12 ` Konrad Rzeszutek Wilk
2017-03-08 19:55 ` Stefano Stabellini
2017-03-08 21:51 ` Julien Grall
2017-03-09 2:59 ` Roger Pau Monné
2017-03-09 11:17 ` Konrad Rzeszutek Wilk
2017-03-09 13:26 ` Julien Grall
2017-03-10 0:29 ` Konrad Rzeszutek Wilk
2017-03-10 3:23 ` Roger Pau Monné
2017-03-10 15:28 ` Konrad Rzeszutek Wilk
2017-03-15 12:07 ` Roger Pau Monné
2017-03-15 12:42 ` Konrad Rzeszutek Wilk
2017-03-15 12:56 ` Roger Pau Monné
2017-03-15 15:11 ` Venu Busireddy
2017-03-15 16:38 ` Roger Pau Monn?
2017-03-15 16:54 ` Venu Busireddy
2017-03-15 17:00 ` Roger Pau Monn?
2017-05-03 12:38 ` Julien Grall
2017-05-03 12:53 ` Julien Grall
2017-01-25 4:23 ` Manish Jaggi
2017-01-06 15:12 ` Roger Pau Monné
2017-01-06 21:16 ` Stefano Stabellini
2017-01-24 17:17 ` Julien Grall
2017-01-25 11:42 ` Roger Pau Monné
2017-01-31 15:59 ` Julien Grall
2017-01-31 22:03 ` Stefano Stabellini
2017-02-01 10:28 ` Roger Pau Monné
2017-02-01 18:45 ` Stefano Stabellini
2017-01-06 16:27 ` Edgar E. Iglesias
2017-01-06 21:12 ` Stefano Stabellini
2017-01-09 17:50 ` Edgar E. Iglesias
2017-01-19 5:09 ` Manish Jaggi
2017-01-24 17:43 ` Julien Grall
2017-01-25 4:37 ` Manish Jaggi
2017-01-25 15:25 ` Julien Grall
2017-01-30 7:41 ` Manish Jaggi
2017-01-31 13:33 ` Julien Grall
2017-05-19 6:38 ` Goel, Sameer
2017-05-19 16:48 ` Julien Grall
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