Messages in this thread | | | Date | Thu, 2 Apr 2015 13:28:33 +0200 | From | Joerg Roedel <> | Subject | Re: [v4 0/8] Add VT-d Posted-Interrupts support - IOMMU part |
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On Mon, Feb 02, 2015 at 04:06:56PM +0800, Feng Wu wrote: > VT-d Posted-Interrupts is an enhancement to CPU side Posted-Interrupt. > With VT-d Posted-Interrupts enabled, external interrupts from > direct-assigned devices can be delivered to guests without VMM > intervention when guest is running in non-root mode. > > You can find the VT-d Posted-Interrtups Spec. in the following URL: > http://www.intel.com/content/www/us/en/intelligent-systems/intel-technology/vt-directed-io-spec.html > > This series was part of http://thread.gmane.org/gmane.linux.kernel.iommu/7708. To make things clear, send out IOMMU part here.
Besides the modify_irte() changes I asked for the patch-set looks good. I just have some concerns what these changes mean for the VT-d kdump improvements Zhen-Hua Li is working on. Can you please discuss the implications of having both patch-sets applied with him and make sure they work together? I think in its current form your patch-set breaks the kdump support patches. I added Zhen-Hua to Cc.
Thanks,
Joerg
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