Re: [Xen-devel] [PATCH] VT-d PI: disable VT-d PI when APICv is disabled

2017-06-06 Thread Jan Beulich
>>> On 01.06.17 at 18:00, wrote: > From the context calling pi_desc_init(), we can conclude the current > implementation of VT-d PI depends on CPU-side PI. If we disable APICv > but enable VT-d PI explicitly in xen boot command line, we would get > an assertion failure. > > This patch disables VT

[Xen-devel] [PATCH] VT-d PI: disable VT-d PI when APICv is disabled

2017-06-01 Thread Chao Gao
From the context calling pi_desc_init(), we can conclude the current implementation of VT-d PI depends on CPU-side PI. If we disable APICv but enable VT-d PI explicitly in xen boot command line, we would get an assertion failure. This patch disables VT-d PI when APICv is disabled and adds some rel