Re: [Qemu-devel] The maximum limit of virtual network device

2017-07-06 Thread Wu, Jiaxin
NICs per PCI bridge, each NIC into a separate slot. Best regards! Jiaxin > -Original Message- > From: Laszlo Ersek [mailto:ler...@redhat.com] > Sent: Thursday, July 6, 2017 5:46 PM > To: Marcel Apfelbaum ; Wu, Jiaxin > ; qemu-devel@nongnu.org; Alexander Bezzubikov > &g

Re: [Qemu-devel] The maximum limit of virtual network device

2017-07-06 Thread Laszlo Ersek
On 07/06/17 11:24, Marcel Apfelbaum wrote: > On 06/07/2017 11:31, Laszlo Ersek wrote: >> > Now, I would normally recommend sticking with i440fx for simplicity. >> However, each PCI bridge requires 4KB of IO space (meaning (1 + 5) * 4KB >> = 24KB), and OVMF on the i440fx does not support that much

Re: [Qemu-devel] The maximum limit of virtual network device

2017-07-06 Thread Marcel Apfelbaum
On 06/07/2017 11:31, Laszlo Ersek wrote: Hi Jiaxin, it's nice to see a question from you on qemu-devel! :) On 07/06/17 08:20, Wu, Jiaxin wrote: Hello experts, We know QEMU has the capability to create the multiple network devices in one QEMU guest with the -device syntax. But I met the below

Re: [Qemu-devel] The maximum limit of virtual network device

2017-07-06 Thread Laszlo Ersek
Hi Jiaxin, it's nice to see a question from you on qemu-devel! :) On 07/06/17 08:20, Wu, Jiaxin wrote: > Hello experts, > > We know QEMU has the capability to create the multiple network devices > in one QEMU guest with the -device syntax. But I met the below failure > when I'm trying to create m

Re: [Qemu-devel] The maximum limit of virtual network device

2017-07-06 Thread Daniel P. Berrange
On Thu, Jul 06, 2017 at 06:20:54AM +, Wu, Jiaxin wrote: > Hello experts, > > We know QEMU has the capability to create the multiple network devices in one > QEMU guest with the -device syntax. But I met the below failure when I'm > trying to create more than 30 virtual devices with the each

[Qemu-devel] The maximum limit of virtual network device

2017-07-05 Thread Wu, Jiaxin
Hello experts, We know QEMU has the capability to create the multiple network devices in one QEMU guest with the -device syntax. But I met the below failure when I'm trying to create more than 30 virtual devices with the each TAP backend: qemu-system-x86_64: -device e1000: PCI: no slot/function