Re: [Xen-devel] [RFC v1 00/15] Add VT-d Posted-Interrupts support

["Wu, Feng" <feng.wu@xxxxxxxxx>]

> -----Original Message-----
> From: Konrad Rzeszutek Wilk [mailto:konrad.wilk@xxxxxxxxxx]
> Sent: Friday, March 27, 2015 2:51 AM
> To: Wu, Feng
> Cc: xen-devel@xxxxxxxxxxxxx; Zhang, Yang Z; Tian, Kevin; keir@xxxxxxx;
> JBeulich@xxxxxxxx
> Subject: Re: [Xen-devel] [RFC v1 00/15] Add VT-d Posted-Interrupts support
> 
> On Wed, Mar 25, 2015 at 08:31:42PM +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-technolog
> y/vt-directed-io-spec.html
> >
> > This patch set follow the following design:
> > http://article.gmane.org/gmane.comp.emulators.xen.devel/236476
> 
> Would it be possible to put the design in xen/docs/ directory?

That's a good suggestion. I will do it in the next post.

Thanks,
Feng

> 
> Thanks!
> 
> >
> > Feng Wu (15):
> >   iommu: Add iommu_intpost to control VT-d Posted-Interrupts feature
> >   vt-d: VT-d Posted-Interrupts feature detection
> >   vmx: Extend struct pi_desc to support VT-d Posted-Interrupts
> >   vmx: Add some helper functions for Posted-Interrupts
> >   vmx: Initialize VT-d Posted-Interrupts Descriptor
> >   vt-d: Extend struct iremap_entry to support VT-d Posted-Interrupts
> >   vt-d: Add API to update IRTE when VT-d PI is used
> >   Update IRTE according to guest interrupt config changes
> >   Add a new per-vCPU tasklet to wakeup the blocked vCPU
> >   vmx: Define two per-cpu variants
> >   vmx: Add a global wake-up vector for VT-d Posted-Interrupts
> >   vmx: Properly handle notification event when vCPU is running
> >   Update Posted-Interrupts Descriptor during vCPU scheduling
> >   Suppress posting interrupts when 'SN' is set
> >   Add a command line parameter for VT-d posted-interrupts
> >
> >  xen/arch/x86/hvm/vmx/vmcs.c            |   6 ++
> >  xen/arch/x86/hvm/vmx/vmx.c             | 185
> ++++++++++++++++++++++++++++++++-
> >  xen/common/domain.c                    |  11 ++
> >  xen/common/schedule.c                  |   3 +
> >  xen/drivers/passthrough/io.c           |  77 +++++++++++++-
> >  xen/drivers/passthrough/iommu.c        |  17 ++-
> >  xen/drivers/passthrough/vtd/intremap.c |  83 +++++++++++++++
> >  xen/drivers/passthrough/vtd/iommu.c    |  15 ++-
> >  xen/drivers/passthrough/vtd/iommu.h    |  23 ++++
> >  xen/include/asm-x86/hvm/hvm.h          |   1 +
> >  xen/include/asm-x86/hvm/vmx/vmcs.h     |  16 ++-
> >  xen/include/asm-x86/hvm/vmx/vmx.h      |  49 ++++++++-
> >  xen/include/asm-x86/iommu.h            |   2 +
> >  xen/include/xen/iommu.h                |   2 +-
> >  xen/include/xen/sched.h                |   5 +
> >  15 files changed, 485 insertions(+), 10 deletions(-)
> >
> > --
> > 2.1.0
> >
> >
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@xxxxxxxxxxxxx
> > http://lists.xen.org/xen-devel

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