On 9/19/16 20:09, Konrad Rzeszutek Wilk wrote:
On Mon, Sep 19, 2016 at 12:52:39AM -0500, Suravee Suthikulpanit wrote:
Latest git tree can be found at:
    http://github.com/ssuthiku/xen.git    xen_avic_part1_v1

This patch set is the first of the two-part patch series to introduce
the new AMD Advance Virtual Interrupt Controller (AVIC) support.

Basically, SVM AVIC hardware virtualizes local APIC registers of each
vCPU via the virtual APIC (vAPIC) backing page. This allows guest access
to certain APIC registers without the need to emulate the hardware behavior
in the hypervisor. More information about AVIC can be found in the
AMD64 Architecture Programmer’s Manual Volume 2 - System Programming.


For SVM AVIC, we extend the existing kvm_amd driver to:

kvm_amd ?, heheh

Ooops. hehehe

.. snip..
Note: In "w/o evtchn" case, the Linux guest is built w/o
      Xen guest support.

You can also just boot Linux with 'xen_nopv' parameter which would
do the same thing.

Ok, Thanks for the tips.


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