Trying it on Windows 10 guest and QEMU 2.8.0 has the same issue. However, I noticed that: Supplying 1 NVMe drive -> Win10 sees it. Supplying 2 NVMe drives -> Win10 sees only one of them. Supplying 3 NVMe drives -> Win10 sees only two of them. So I still have been able to create a ReFS mirrored storage space with two NVMe disks under QEMU, I just had to pass three drives instead of two:
qemu-system-x86_64 -enable-kvm <...> -drive file=/media/ssd/NVMe_drvA.qcow2,id=diskNVMeA,format=qcow2,if=none -drive file=/media/ssd/NVMe_drvB.qcow2,id=diskNVMeB,format=qcow2,if=none -drive file=/media/ssd/NVMe_drvC.qcow2,id=diskNVMeC,format=qcow2,if=none -device nvme,drive=diskNVMeA,serial=foo -device nvme,drive=diskNVMeB,serial=foo -device nvme,drive=diskNVMeC,serial=foo Hope this helps, --Sergey -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1576347 Title: Only one NVMe device is usable in Windows (10) guest Status in QEMU: New Bug description: Full command: qemu-system-x86_64 -enable-kvm -cpu host -smp cores=4 -m 4G -net bridge -net nic -full-screen -drive file=ovmf_x64.bin,format=raw,if=pflash -drive file=disks/win16_ide.img,format=raw,cache=none,aio=native -drive file=disks/one.img,if=none,format=qcow2,id=one -drive file=disks/two.img,if=none,format=qcow2,id=two -device nvme,drive=one,serial=E86C3CFC43518D6F -device nvme,drive=two,serial=2BDAC262CF831698 QEMU version: 2.5.0 Kernel: 4.5.1 (Arch Linux) When there are two NVMe devices specified, only the second one will be usable in Windows. The following error is shown under "Device status" of the failed NVMe controller in Device Manager: "This device cannot start. (Code 10) The I/O device is configured incorrectly or the configuration parameters to the driver are incorrect." The only thing seems suspicious to me is that the nvme emulation in qemu does not have WWN/EUI-64 set for the devices, though I have no idea at all whether that is mandatory: "C:\Windows\system32>sg_vpd -i PD1 Device Identification VPD page: Addressed logical unit: designator type: SCSI name string, code set: UTF-8 SCSI name string: 8086QEMU NVMe Ctrl 00012BDAC262CF831698 C:\Windows\system32>sg_vpd -p sn PD1 Unit serial number VPD page: Unit serial number: 0000_0000_0000_0000." To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1576347/+subscriptions
