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Re: [Xen-devel] [PATCH] VT-d/ATS: misc fixes
| To: | Jan Beulich <JBeulich@xxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH] VT-d/ATS: misc fixes |
| From: | Joanna Rutkowska <joanna@xxxxxxxxxxxxxxxxxxxxxx> |
| Date: | Tue, 18 Jan 2011 22:19:48 +0100 |
| Cc: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Tue, 18 Jan 2011 13:20:12 -0800 |
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On 01/18/11 12:32, Jan Beulich wrote: > First of all there were three places potentially de-referencing NULL > (two after an allocation failure, and one after a failed lookup). > > Second, if ATS_ENABLE was already set, the device would not have got > added to the ats_devices list, potentially resulting in > dev_invalidate_iotlb() doing an incomplete job. > > Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx> > Jan, Please excuse the slightly off-topic question, but I'm very curious to know where one can find ATS-enabled hardware? Is it the new Sandy Bridge platforms that support ATS, or is it some developers hardware (i.e. not available for mere mortals)? Thanks, joanna.
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