Re: [Qemu-devel] [Xen-devel] [PATCH RESEND] fix MSI injection on Xen

2016-01-28 Thread Stefano Stabellini
On Wed, 27 Jan 2016, Konrad Rzeszutek Wilk wrote: > On Wed, Jan 13, 2016 at 02:59:09PM +, Stefano Stabellini wrote: > > On Xen MSIs can be remapped into pirqs, which are a type of event > > channels. It's mostly for the benefit of PCI passthrough devices, to > > avoid the overhead of

Re: [Qemu-devel] [Xen-devel] [PATCH RESEND] fix MSI injection on Xen

2016-01-27 Thread Konrad Rzeszutek Wilk
On Wed, Jan 13, 2016 at 02:59:09PM +, Stefano Stabellini wrote: > On Xen MSIs can be remapped into pirqs, which are a type of event > channels. It's mostly for the benefit of PCI passthrough devices, to > avoid the overhead of interacting with the emulated lapic. > > However remapping