Re: [libvirt] [PATCH v4 3/4] qemu: Isolate hostdevs on pSeries guests

2017-07-17 Thread Andrea Bolognani
On Sat, 2017-07-15 at 17:30 +0200, Andrea Bolognani wrote: > All the pieces are now in place, so we can finally start > using isolation groups to achieve our initial goal, which is > separating hostdevs from emulated PCI devices while keeping > hostdevs that belong to the same host IOMMU group toge

Re: [libvirt] [PATCH v4 3/4] qemu: Isolate hostdevs on pSeries guests

2017-07-17 Thread Andrea Bolognani
On Sat, 2017-07-15 at 22:28 -0400, Laine Stump wrote: > > +/* The isolation group for a host device is its IOMMU group, > > + * increased by one: this is because zero is a valid IOMMU group > > but > > + * that's also the default isolation group, which we want to save > > +

Re: [libvirt] [PATCH v4 3/4] qemu: Isolate hostdevs on pSeries guests

2017-07-15 Thread Laine Stump
On 07/15/2017 11:30 AM, Andrea Bolognani wrote: > All the pieces are now in place, so we can finally start > using isolation groups to achieve our initial goal, which is > separating hostdevs from emulated PCI devices while keeping > hostdevs that belong to the same host IOMMU group together. > > R

[libvirt] [PATCH v4 3/4] qemu: Isolate hostdevs on pSeries guests

2017-07-15 Thread Andrea Bolognani
All the pieces are now in place, so we can finally start using isolation groups to achieve our initial goal, which is separating hostdevs from emulated PCI devices while keeping hostdevs that belong to the same host IOMMU group together. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=128054