hi Alex， i finally fixed this problem. that's because my code lacks pci
virtual channel support.
after i add drivers\pci\vc.c to support this , everythings runs ok.
thanks a lot.
2017-03-13 10:29 GMT+08:00 rhett rhett :
> it's using qemu 1.2 , i tried the newest qemu , vers
it's using qemu 1.2 , i tried the newest qemu , version 2.8 , the problem
remains.
2017-03-10 22:08 GMT+08:00 Alex Williamson :
> On Fri, 10 Mar 2017 10:42:28 +0800
> rhett rhett wrote:
>
> > sorry , update infomation right now
> >
> >
> > i installed ce
2017-03-09 21:49 GMT+08:00 Alex Williamson :
> On Thu, 9 Mar 2017 11:47:32 +0800
> rhett rhett
somebody can help me ?
2017-03-08 14:34 GMT+08:00 rhett rhett :
> here's some more error log from centos guest:
>
> Mar 7 05:38:07 localhost kernel: NVRM: loading NVIDIA UNIX x86_64 Kernel
> Module 375.39 Tue Jan 31 20:47:00 PST 2017 (using threaded interrupts)
> Mar
:1060)
Mar 7 05:43:40 localhost kernel: NVRM: rm_init_adapter failed for device
bearing minor number 0
Mar 8 05:07:47 localhost kernel: nvidia: module license 'NVIDIA' taints
kernel.
Mar 8 05:07:47 localhost kernel: NVRM: loading NVIDIA UNIX x86_64 Kernel
Module
2017-03-08 14:31 GMT+08
. the biggest different is , that server
is no pcie switcher.
2017-03-08 11:55 GMT+08:00 Alex Williamson :
> On Wed, 8 Mar 2017 11:26:17 +0800
> rhett rhett wrote:
>
> > two gpus share the same irq , i found the reason. because the msi be
> > disabled later , so irq 140 is b
two gpus share the same irq , i found the reason. because the msi be
disabled later , so irq 140 is being reused.
but i don't know why somebady calls vfio_pci_ioctl to disable the msi.
2017-03-08 10:55 GMT+08:00 rhett rhett :
> i have a question about vfio , here is my description.
>
i have a question about vfio , here is my description.
i have 8 gpus in my server machine , but they are all behind a pcie
bridge. when i make a vfio passthrough , i can't use the gpus in my guest
os.
dmesg shows the following message
[ 662.208072] vfio-pci :87:00.0: irq 140 for MSI/MSI-X
