Messages in this thread | | | Date | Mon, 30 May 2016 11:27:33 +0800 | From | Baoquan He <> | Subject | Re: [Patch v4 3/9] iommu/amd: Detect pre enabled translation |
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On 05/30/16 at 11:24am, Baoquan He wrote: > On 05/28/16 at 08:49pm, Wan Zongshun wrote: > In fact I am still debugging and trying to figure out what need be done > further to stop the IO_PAGE_FAULT happened on ethernet network card. I > kept changing code and adjust the patches. Up to now seems I still > didn't figure out why. There must be something I didn't notice and > everything will be fine as soon as I close that valve. With my > understand pci bug scanning will detect each pci device and do the |_ bus > initialization job like setting configuration space registers and > control registers. After that we can safely re-init the pci device and > re-install the new io-page tables, and this is how Joerg has done for > vt-d fix for kdump if my understanding is correct. And I tried to do > like that in this patchset, don't know why it doesn't work.
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