Re: [PATCH [RFC]] PCI: hv: add explicit fencing to config space access

2016-05-04 Thread Bjorn Helgaas
On Tue, May 03, 2016 at 02:22:00PM +0200, Vitaly Kuznetsov wrote: > I'm trying to pass-through Broadcom BCM5720 NIC (Dell Device 1f5b) on Dell > R720 server. Everything works fine when target VM has only one CPU, but > SMP guests reboot when NIC driver is trying to access PCI config space > (with

RE: [PATCH [RFC]] PCI: hv: add explicit fencing to config space access

2016-05-03 Thread Jake Oshins
e > Oshins > Subject: [PATCH [RFC]] PCI: hv: add explicit fencing to config space access > > I'm trying to pass-through Broadcom BCM5720 NIC (Dell Device 1f5b) on Dell > R720 server. Everything works fine when target VM has only one CPU, but > SMP guests reboot when NIC driver

[PATCH [RFC]] PCI: hv: add explicit fencing to config space access

2016-05-03 Thread Vitaly Kuznetsov
I'm trying to pass-through Broadcom BCM5720 NIC (Dell Device 1f5b) on Dell R720 server. Everything works fine when target VM has only one CPU, but SMP guests reboot when NIC driver is trying to access PCI config space (with hv_pcifront_read_config/hv_pcifront_write_config). The reboot appears to b