linux-kernel - Re: [PATCH] vfio powerpc: enabled on powernv platform

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: <50C9755D.6060300@ozlabs.ru>
Date:	Thu, 13 Dec 2012 17:27:41 +1100
From:	Alexey Kardashevskiy <aik@...abs.ru>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
CC:	Alex Williamson <alex.williamson@...hat.com>,
	Paul Mackerras <paulus@...ba.org>,
	linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	kvm@...r.kernel.org, David Gibson <david@...son.dropbear.id.au>
Subject: Re: [PATCH] vfio powerpc: enabled on powernv platform

On 13/12/12 13:29, Benjamin Herrenschmidt wrote:
> On Wed, 2012-12-12 at 07:34 -0700, Alex Williamson wrote:
>>> But what would I put there?... IOMMU ID is more than enough at the moment
>>> and struct iommu_table does not have anything what would have made sense to
>>> show in the sysfs...
>>
>> I believe David mentioned that PEs had user visible names.  Perhaps they
>> match an enclosure location or something.  Group numbers are rather
>> arbitrary and really have no guarantee of persistence.  Thanks,
>
> I agree. Make up something, for example domain[PE] or something like
> that.

To be able to add a PE number, I need to call iommu_group_alloc() in the 
correct place where I know this number OR I have to carry it in iommu_table 
till the moment the iommu_group_alloc() is called (acceptable but not cool).

I will post a patch which would help as a response to this mail.


-- 
Alexey
--
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/