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 <[email protected]>: > On Fri, 10 Mar 2017 10:42:28 +0800 > rhett rhett <[email protected]> wrote: > > > sorry , update infomation right now > > > > > > i installed centos7.3 at my 8 gpus machine yesterday, and i made a > > successful passthrough, the vm guest os can use gpu with no problem. so i > > think this is a software problem, i need to patch some patch. > > > > i also made a test in my 4 gpus machine without any software change, the > > result is success. the 4 gpus are attached at pci root without pcie > switch > > , so , i think the software problem have some correlation with pcie > switch . > > > > thank you Alex . > > > > [root@64 /data]# lspci|grep NV > > 04:00.0 3D controller: NVIDIA Corporation Device 17fd (rev a1) > > Tesla M40 > > > 05:00.0 3D controller: NVIDIA Corporation Device 1b38 (rev a1) > > Tesla P40 > > > 08:00.0 3D controller: NVIDIA Corporation Device 1b38 (rev a1) > > 09:00.0 3D controller: NVIDIA Corporation Device 1b38 (rev a1) > > 85:00.0 3D controller: NVIDIA Corporation Device 1b38 (rev a1) > > 86:00.0 3D controller: NVIDIA Corporation Device 17fd (rev a1) > > 89:00.0 3D controller: NVIDIA Corporation Device 1b38 (rev a1) > > 8a:00.0 3D controller: NVIDIA Corporation Device 1b38 (rev a1) > > Note that you have all of these in 3D mode, you may need to put these > into VGA mode. NVIDIA provides tools to do this in the host. > > > [root@64 /data]# lspci -t > > -+-[0000:ff]-+-08.0 > > | +-08.2 > > | +-08.3 > > | +-09.0 > > [snip... not useful w/o info per devices] > > > and the xml > > > > <domain type='kvm'> > > <name>win</name> > > <uuid>a2021423-89d8-4a33-aaa5-07102ae7ad4e</uuid> > > <memory unit='KiB'>8388608</memory> > > <currentMemory unit='KiB'>8388608</currentMemory> > > <vcpu placement='static' cpuset='0-8'>8</vcpu> > > <sysinfo type='smbios'> > > <system> > > <entry name='serial'>21aa32e5-8233-40d4-b323-128824f6becf</entry> > > <entry name='uuid'>a2021423-89d8-4a33-aaa5-07102ae7ad4e</entry> > > </system> > > </sysinfo> > > <os> > > <type arch='x86_64' machine='pc'>hvm</type> > > <boot dev='hd'/> > > <smbios mode='sysinfo'/> > > </os> > > <features> > > <acpi/> > > <apic/> > > <pae/> > > <hap/> > > <hyperv> > > <relaxed state='on'/> > > </hyperv> > > </features> > > <cpu> > > <topology sockets='2' cores='6' threads='2'/> > > </cpu> > > <clock offset='localtime'> > > <timer name='pit' tickpolicy='delay'/> > > <timer name='rtc' tickpolicy='catchup' track='guest'/> > > <timer name='hpet' present='no'/> > > </clock> > > <on_poweroff>destroy</on_poweroff> > > <on_reboot>restart</on_reboot> > > <on_crash>restart</on_crash> > > <devices> > > <emulator>/usr/local/bin/qemu-system-x86_64</emulator> > > Running custom QEMU, what version is this? >
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