Windows 10 reports no compatible TPM found yet device manager shows it?
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
QEMU |
Expired
|
Undecided
|
Unassigned |
Bug Description
Ubuntu 16.04 with stock kvm, libvirt, ovmf
Qemu 2.5 installed from stock ubuntu ppa
Qemu 2.6.1 built from tarball.
Qemu 2.7.0-rc4 built from tarball.
Windows 10 guest reports a TPM device is installed and the driver functional under Device Manager-->Security Devices. TPM Administrator however advises no compatible TPM chip can be found.
Qemu 2.5 is buggy and prevents the guest loading the TPM driver, this was addressed by http://
Have tested the below cmd out on both qemu-2.6.1 and qemu-2.7.0-rc4, both suffer the same problem. My TPM is most certainly compatible as installing Win10Pro onto the same host as bare metal provides me the desired and expected functionality aka Bitlocker and TPM Administrator work.
sudo ./qemu-
-enable-kvm \
-machine q35 \
-cpu host \
-m 4096 \
-smp 4,sockets=
-device i82801b11-
-device pci-bridge,
-device qxl-vga,
-drive file=/usr/
-drive file=/mnt/
-drive file=/mnt/
-device virtio-
-drive file="/
-device ide-cd,
-drive file=/mnt/
-device ide-cd,
-tpmdev passthrough,
-device tpm-tis,
Hi, any chance of this bug getting triaged anytime soon? I've posted to the qemu-devel mailing list twice but no response. Am keen to resolve this soon if its user error or not so if its a bonafide bug?
Thanks,
Kelvin