Re: [libvirt] [PATCH 4/3] conf: restrict expander buses to connect only to a root bus

2016-08-09 Thread Andrea Bolognani
On Tue, 2016-08-09 at 11:59 -0400, Laine Stump wrote: > > One thing that's not quite clear to me about pcie-expander-bus: > > according to the code and comment, it has a single slot that > > can accomodate either a pcie-root-port or a dmi-to-pci-bridge. > >  > > It seems like that would limit its u

Re: [libvirt] [PATCH 4/3] conf: restrict expander buses to connect only to a root bus

2016-08-09 Thread Laine Stump
On 08/09/2016 05:01 AM, Andrea Bolognani wrote: On Sat, 2016-08-06 at 19:22 -0400, Laine Stump wrote: More misunderstanding/mistaken assumptions on my part - I had thought that a pci-expander-bus could be plugged into any legacy PCI slot, and that pcie-expander-bus could be plugged into any PCIe

Re: [libvirt] [PATCH 4/3] conf: restrict expander buses to connect only to a root bus

2016-08-09 Thread Andrea Bolognani
On Sat, 2016-08-06 at 19:22 -0400, Laine Stump wrote: > More misunderstanding/mistaken assumptions on my part - I had thought > that a pci-expander-bus could be plugged into any legacy PCI slot, and > that pcie-expander-bus could be plugged into any PCIe slot. This isn't > correct - they can both b

[libvirt] [PATCH 4/3] conf: restrict expander buses to connect only to a root bus

2016-08-06 Thread Laine Stump
More misunderstanding/mistaken assumptions on my part - I had thought that a pci-expander-bus could be plugged into any legacy PCI slot, and that pcie-expander-bus could be plugged into any PCIe slot. This isn't correct - they can both be plugged ontly into their respective root buses. This patch a