[Qemu-devel] ruk.ansari

http://saborandlight.com/rtsujf/bmdlke.omlathbtcxphzsxe ruk.ansari 7/21/2013 6:38:32 AM

Re: [Qemu-devel] FLR capability hidden in VF config space

Thanks Alex. Pls see my responses below: On Thu, Feb 23, 2012 at 9:34 PM, Alex Williamson wrote: > On Thu, 2012-02-23 at 09:25 +0530, rukhsana ansari wrote: > > Hello, > > > > Was wondering whether someone could shed some light on the issue below. > > Without FLR expo

Re: [Qemu-devel] FLR capability hidden in VF config space

Hello, Was wondering whether someone could shed some light on the issue below. Without FLR exposed in the VF, VF reset via FLR cannot be initiated from the guest. Appreciate any pointers. Thanks, Rukhsana On Wed, Feb 15, 2012 at 2:54 PM, rukhsana ansari wrote: > Hi, > > The follo

[Qemu-devel] FLR capability hidden in VF config space

Hi, The following code snippet (line 1457, function:assigned_device_pci_cap_init() file: hw/device-assignment.c) from the latest qemu-kvm git (qemu-kvm-devel: 1.0.50) implies that FLR capability is unset for VF that is assigned to a guest: /* device capabilities: hide FLR */ dev

Re: [Qemu-devel] [PATCH] vhost: force vhost off for non-MSI guests

Alex, Michael, Thank you for the clarification. On Tue, Mar 15, 2011 at 1:01 AM, Alex Williamson wrote: > On Mon, 2011-03-14 at 21:00 +0200, Michael S. Tsirkin wrote: > > On Mon, Mar 14, 2011 at 10:35:08PM +0530, rukhsana ansari wrote: > > > Seeking clarification to the o

Re: [Qemu-devel] [PATCH] vhost: force vhost off for non-MSI guests

Seeking clarification to the original question I posted: >> >> > This maybe a novice question - Would appreciate it if you can you provide a > pointer to documentation or relevant code that explains what is the > *limitation in supporting level irq support in kvm irqfd.* > > > After browsing the KV

[Qemu-devel] vhost performance numbers and test configuration

The KVM website states: "VhostNet provides better latency (10% less than e1000 on my system) and greater throughput (8x the normal virtio, around 7~8 Gigabits/sec here) for network. " I did look trough the mailing list but couldn't find information on the t

Re: [Qemu-devel] [PATCH] vhost: force vhost off for non-MSI guests

Hi, On Thu, Jan 20, 2011 at 9:05 PM, Michael S. Tsirkin wrote: > When MSI is off, each interrupt needs to be bounced through the io > thread when it's set/cleared, so vhost-net causes more context switches and > higher CPU utilization than userspace virtio which handles networking in > the same

[Qemu-devel] Re: [PATCH] virtio: Use ioeventfd for virtqueue notify

Hi, W.r.t: > Note that this is a tradeoff.  If an idle core is available and the > scheduler places the iothread on that core, then the heavyweight exit is > replaced by a lightweight exit + IPI.  If the iothread is co-located with > the vcpu, then we'll take a heavyweight exit in any case. > Q: D