From: "Andres Lagar-Cavilla" <andres@lagarcavilla.org>
To: Tim Deegan <tim@xen.org>
Cc: olaf@aepfle.de, keir@xen.org, andres@gridcentric.ca,
xen-devel@lists.xen.org, wei.wang2@amd.com, jbeulich@suse.com,
adin@gridcentric.ca
Subject: Re: [PATCH 0 of 2] Support for Paging/Sharing on AMD
Date: Thu, 29 Mar 2012 07:46:35 -0700 [thread overview]
Message-ID: <7e6f4eefa902b1d9bbfc918e29c867d7.squirrel@webmail.lagarcavilla.org> (raw)
In-Reply-To: <20120329110357.GE72859@ocelot.phlegethon.org>
> At 11:43 -0400 on 27 Mar (1332848606), Andres Lagar-Cavilla wrote:
>> This is a partial repost of the series first sent on Mar 22nd.
>>
>> It currently contains two patches
>> - Teach paging types to p2m-pt.
>> - Add interlock for iommu and mem paging/sharing.
>>
>> The first patch is rebased to apply on top of
>> http://lists.xen.org/archives/html/xen-devel/2012-03/msg01982.html
>> and addresses some feedbackfrom Tim Deegan.
>>
>> The second patch prevents a passthrough device from being assigned to a
>> domain
>> if mem paging or sharing have been turned on. And viceversa. This is a
>> missing
>> check that is necessary for both Intel and AMD processors.
>>
>> Signed-off-by: Andres Lagar-Cavilla <andres@lagarcavilla.org>
>
> Applied, thanks.
Great, thanks.
The question now is what to do for AMD+paging in Xen 4.2. It works
partially, there are still VMEXIT_shutdown hvm crashes happening with pv
drivers.
I see two options
- leave as is, disabled
- enable it and tag it experimental (printk, documentation, etc)
The patch for option 2 is straight-forward. Thoughts?
Andres
>
> Tim.
>
>
next prev parent reply other threads:[~2012-03-29 14:46 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-27 15:43 [PATCH 0 of 2] Support for Paging/Sharing on AMD Andres Lagar-Cavilla
2012-03-27 15:43 ` [PATCH 1 of 2] x86/mm: Teach paging to page table-based p2m Andres Lagar-Cavilla
2012-03-27 15:43 ` [PATCH 2 of 2] x86/mm: Make iommu passthrough and mem paging/sharing mutually exclusive Andres Lagar-Cavilla
2012-03-29 11:03 ` [PATCH 0 of 2] Support for Paging/Sharing on AMD Tim Deegan
2012-03-29 14:46 ` Andres Lagar-Cavilla [this message]
2012-03-29 15:01 ` Tim Deegan
2012-03-29 15:26 ` Andres Lagar-Cavilla
2012-03-29 15:42 ` Tim Deegan
2012-03-29 15:48 ` Andres Lagar-Cavilla
2012-03-29 16:00 ` Tim Deegan
2012-03-29 16:01 ` Olaf Hering
2012-03-29 16:05 ` Andres Lagar-Cavilla
2012-03-29 16:08 ` Tim Deegan
2012-03-29 16:41 ` Olaf Hering
2012-03-29 16:58 ` Tim Deegan
2012-04-03 14:42 ` Olaf Hering
2012-04-03 15:10 ` Andres Lagar-Cavilla
2012-04-03 15:16 ` Olaf Hering
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