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Date: Thu, 27 Jun 2019 12:20:47 +0200 From: Gerd Hoffmann <kraxel@...hat.com> To: "Zhang, Tina" <tina.zhang@...el.com> Cc: "Tian, Kevin" <kevin.tian@...el.com>, "kvm@...r.kernel.org" <kvm@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "zhenyuw@...ux.intel.com" <zhenyuw@...ux.intel.com>, "Yuan, Hang" <hang.yuan@...el.com>, "alex.williamson@...hat.com" <alex.williamson@...hat.com>, "Lv, Zhiyuan" <zhiyuan.lv@...el.com>, "intel-gvt-dev@...ts.freedesktop.org" <intel-gvt-dev@...ts.freedesktop.org>, "Wang, Zhi A" <zhi.a.wang@...el.com> Subject: Re: [RFC PATCH v3 1/4] vfio: Define device specific irq type capability On Thu, Jun 27, 2019 at 08:55:21AM +0000, Zhang, Tina wrote: > > > > -----Original Message----- > > From: intel-gvt-dev [mailto:intel-gvt-dev-bounces@...ts.freedesktop.org] On > > Behalf Of Gerd Hoffmann > > Sent: Thursday, June 27, 2019 2:20 PM > > To: Zhang, Tina <tina.zhang@...el.com> > > Cc: Tian, Kevin <kevin.tian@...el.com>; kvm@...r.kernel.org; linux- > > kernel@...r.kernel.org; zhenyuw@...ux.intel.com; Yuan, Hang > > <hang.yuan@...el.com>; alex.williamson@...hat.com; Lv, Zhiyuan > > <zhiyuan.lv@...el.com>; intel-gvt-dev@...ts.freedesktop.org; Wang, Zhi A > > <zhi.a.wang@...el.com> > > Subject: Re: [RFC PATCH v3 1/4] vfio: Define device specific irq type > > capability > > > > Hi, > > > > > +struct vfio_irq_info_cap_type { > > > + struct vfio_info_cap_header header; > > > + __u32 type; /* global per bus driver */ > > > + __u32 subtype; /* type specific */ > > > > Do we really need both type and subtype? > Then, if one device has several irqs, how can we identify them? > Thanks. Just assign multiple types? cheers, Gerd
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