Re: [Xen-devel] [RFC v2 00/15] Add VT-d Posted-Interrupts support

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

> From: Wu, Feng
> Sent: Friday, May 08, 2015 5:07 PM
> 
> 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-technolog
> y/vt-directed-io-spec.html
> 
> This patch set follow the following design:
> http://article.gmane.org/gmane.comp.emulators.xen.devel/236476
> 
> v1 -> v2
> 1. Add the design doc.
> 2. Coding style fix.
> 3. Add some comments for struct pi_desc.
> 4. Extend 'struct iremap_entry' to a more common format.
> 5. Delete the atomic helper functions for pi descriptor manipulation.
> 6. Add the new command line in docs/misc/xen-command-line.markdown.
> 7. Use macros to replace some magic numbers.

Though generally this version looks good to me, it'd be clearer if you could
give v1->v2 information per patch to help review. :-)

Thanks
Kevin


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