Re: IOMMU+DMAR causing NMIs-s

On 7/13/2016 10:48 AM, Alex Williamson wrote: > On Wed, 13 Jul 2016 12:18:59 +0200 > Joerg Roedel wrote: > >> On Wed, Jul 13, 2016 at 12:58:24PM +0300, Meelis Roos wrote: > Just got http://kodu.ut.ee/~mroos/4.6-dmar-fault2.png when playing with > BIOS settings

Re: [GIT PULL] Intel IOMMU for 4.1

On 4/26/2015 2:16 PM, Alex Williamson wrote: On Sun, 2015-04-26 at 18:55 +0100, David Woodhouse wrote: On Sun, 2015-04-26 at 11:33 -0600, Alex Williamson wrote: Curious why these weren't posted to the mailing list. Apologies for that. I was thinking of this tree as *only* collecting the

Re: [GIT PULL] Intel IOMMU for 4.1

On 4/27/2015 11:48 AM, Linus Torvalds wrote: On Mon, Apr 27, 2015 at 8:39 AM, Alex Williamson alex.william...@redhat.com wrote: Since this got pulled anyway, do you plan to follow-up with patches to limit the graphics RMRR exception to the known and acceptable uses and document them, or

Re: [PATCH] iommu/vt-d: Fix broken device issue when using iommu=pt

On 9/25/2014 9:56 AM, Rob Roschewsk wrote: OK ... at first glance the system seems to be operating normally except for the errors every 4 seconds ... that is it's attached to and using the iscsi target ... Is this a problem in iommu OR the emulex driver?? Please make sure your BIOS and

Re: [PATCH v2] iommu/vt-d: Fix broken device issue when using iommu=pt

On 8/25/2014 9:51 PM, Yijing Wang wrote: On 2014/8/25 23:04, David Woodhouse wrote: On Mon, 2014-08-25 at 12:11 +, Sathya Perla wrote: Hi Wang, from the kernel log I can see that the faulting address 0xbdf7 falls in the RMRR range the BIOS requested: [0.111343] DMAR: RMRR base:

Re: [PATCH] iommu/vt-d: Fix broken device issue when using iommu=pt

On 8/11/2014 9:37 PM, Yijing Wang wrote: On 2014/8/11 22:59, Linda Knippers wrote: On 8/11/2014 12:43 AM, Alex Williamson wrote: On Mon, 2014-08-11 at 10:54 +0800, Yijing Wang wrote: We found some strange devices in HP C7000 and Huawei Server. These devices can not be enumerated by OS

Re: [PATCH] iommu/vt-d: Fix broken device issue when using iommu=pt

On 8/11/2014 12:43 AM, Alex Williamson wrote: On Mon, 2014-08-11 at 10:54 +0800, Yijing Wang wrote: We found some strange devices in HP C7000 and Huawei Server. These devices can not be enumerated by OS, but they still did DMA read/write without OS management. Because iommu will not create

Re: [PATCH] iommu/intel: Exclude devices using RMRRs from IOMMU API domains

On 5/21/2014 9:20 AM, Alex Williamson wrote: On Wed, 2014-05-21 at 11:38 +0100, David Woodhouse wrote: On Wed, 2014-05-14 at 13:27 -0600, Alex Williamson wrote: The user of the IOMMU API domain expects to have full control of the IOVA space for the domain. RMRRs are fundamentally incompatible

Re: hpsa driver bug crack kernel down!

On 4/10/2014 11:14 AM, Bjorn Helgaas wrote: On Thu, Apr 10, 2014 at 2:46 AM, Woodhouse, David david.woodho...@intel.com wrote: DMAR:[fault reason 02] Present bit in context entry is clear dmar: DRHD: handling fault status reg 602 dmar: DMAR:[DMA Read] Request device [02:00.0] fault addr

Re: [PATCH 0/9] AMD IOMMU cleanups, fixes and IVRS bug workarounds

On 04/13/13 19:14, Shuah Khan wrote: On Sat, Apr 13, 2013 at 9:26 AM, Joerg Roedel j...@8bytes.org wrote: On Sat, Apr 13, 2013 at 11:06:22PM +0800, Andrew Cooks wrote: On Fri, Apr 12, 2013 at 4:06 PM, Joerg Roedel j...@8bytes.org wrote: Oh, that's sad. You were the only one having a machine

Re: [PATCH v2] Intel IOMMU patch to reprocess RMRR info

Alex Williamson wrote: On Thu, 2012-09-27 at 21:10 +, Mingarelli, Thomas wrote: Alex, Are you suggesting that a solution is to prevent devices with RMRRs from being placed in the SI Domain in the first place (when pt mode is used)? No, it seems like it's preferable that devices with