我目前正在尝试使用qemu 2.5和libvirt 1.3.5将nvidia GPU传递给Windows 10客户机。
在设备管理器中，我看到Nvidia GPU上显示“错误43”。
我尝试通过添加“kvm=off”和“hv_vendor_id=123456780ab”来隐藏虚拟化监控程序，但对我无效。我在谷歌上搜索，人们是这样解决问题的。
我还在任务管理器中看到虚拟机：是。
我用错了吗？我可以将AMD GPU传递给Windows客户机（AMD不检查kvm虚拟化）。
我能以其他方式欺骗nvidia吗？
我的系统信息：
#uname -a
Linux ns.mqcache.net 4.2.0-1.el7.elrepo.x86_64 #1 SMP Sun Aug 30 21:25:29 EDT 2015 x86_64 x86_64 x86_64 GNU/Linux
#/root/qemu25/qemu/x86_64-softmmu/qemu-system-x86_64 --version
QEMU emulator version 2.5.1.1, Copyright (c) 2003-2008 Fabrice Bellard
GPU:
02:00.0 VGA compatible controller: NVIDIA Corporation GF119 [GeForce GT 620 OEM] (rev a1)
02:00.1 Audio device: NVIDIA Corporation GF119 HDMI Audio Controller (rev a1)
libvirt.xml
<domain xmlns:qemu="http://libvirt.org/schemas/domain/qemu/1.0" type="kvm">
<name>win10</name>
<os>
<type machine="q35">hvm</type>
<boot dev="hd"/>
<boot dev="cdrom"/>
</os>
<features>
<acpi/>
<apic/>
<hyperv>
<vendor_id state='on' value='1234567890ab'/>
</hyperv>
<kvm>
<hidden state='on'/>
</kvm>
</features>
<clock offset="localtime">
<timer name="rtc" tickpolicy="catchup"/>
<timer name="pit" tickpolicy="delay"/>
<timer name="hpet" present="no"/>
<timer name='hypervclock' present='yes'/>
</clock>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<vcpu current="4">4</vcpu>
<cpu mode="host-passthrough">
<topology sockets="1" cores="4" threads="1"/>
</cpu>
<memory>8388608</memory>
<currentMemory>8388608</currentMemory>
<devices>
<emulator>/root/qemu25/qemu/x86_64-softmmu/qemu-system-x86_64</emulator>
<disk device="disk" type="file">
<driver name="qemu" type="qcow2"/>
<source file="/root/vm/win10/image.qcow2"/>
<target bus="virtio" dev="vda"/>
</disk>
<sound model="ac97"/>
<interface type="bridge">
<mac address="fa:16:3e:81:00:03"/>
<source bridge="eucabr"/>
<model type="virtio"/>
<driver name="qemu"/>
<alias name="net0"/>
</interface>
<hostdev mode="subsystem" type="pci" managed="yes">
<source>
<address domain="0x0000" bus="0x02" slot="0x00" function="0x1"/>
</source>
</hostdev>
</devices>
<qemu:commandline>
<qemu:arg value="-machine"/>
<qemu:arg value="smm=off"/>
<qemu:arg value="-device"/>
<qemu:arg value="ioh3420,bus=pcie.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1"/>
<qemu:arg value="-device"/>
<qemu:arg value="vfio-pci,host=02:00.0,bus=root.1,addr=00.0,multifunction=on,x-vga=on"/>
<qemu:arg value="-vga"/>
<qemu:arg value="none"/>
</qemu:commandline>
</domain>
QEMU命令
/root/qemu25/qemu/x86_64-softmmu/qemu-system-x86_64 \
-name win10 \
-machine q35,accel=kvm,usb=off \
-cpu host,kvm=off,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time,hv_vendor_id=blah \
-m 2048 \
-realtime mlock=off \
-smp 2,sockets=1,cores=2,threads=1 \
-no-user-config \
-nodefaults \
-rtc base=localtime \
-no-shutdown \
-boot strict=on \
-device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
-device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x1 \
-drive file=/root/vm/win10/snap.qcow2,if=none,id=drive-virtio-disk0,format=qcow2 \
-device virtio-blk-pci,scsi=off,bus=pci.2,addr=0x2,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 \
-k en-us \
-device virtio-balloon-pci,id=balloon0,bus=pci.2,addr=0x4 \
-machine smm=off \
-device ioh3420,bus=pcie.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1 \
-device vfio-pci,host=02:00.0,bus=root.1,addr=00.0,multifunction=on,x-vga=on \
-device vfio-pci,host=02:00.1,bus=root.1,addr=00.1 \
-msg timestamp=on \
-vga none
期待您的帮助！