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[Bug 1615823] Re: Windows 10 reports no compatible TPM found yet device
From: |
Thomas Huth |
Subject: |
[Bug 1615823] Re: Windows 10 reports no compatible TPM found yet device manager shows it? |
Date: |
Tue, 10 Nov 2020 14:53:19 -0000 |
The QEMU project is currently considering to move its bug tracking to another
system. For this we need to know which bugs are still valid and which could be
closed already. Thus we are setting older bugs to "Incomplete" now.
If you still think this bug report here is valid, then please switch the state
back to "New" within the next 60 days, otherwise this report will be marked as
"Expired". Or mark it as "Fix Released" if the problem has been solved with a
newer version of QEMU already. Thank you and sorry for the inconvenience.
** Changed in: qemu
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1615823
Title:
Windows 10 reports no compatible TPM found yet device manager shows
it?
Status in QEMU:
Incomplete
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://git.qemu.org/?p=qemu.git;a=commit;h=2b1c2e8e5f1990f0a201a8cbf9d366fca60f4aa8
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-system-x86_64 \
-enable-kvm \
-machine q35 \
-cpu host \
-m 4096 \
-smp 4,sockets=1,cores=2,threads=2 \
-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 \
-device
qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,vgamem_mb=16,bus=pcie.0,addr=0x2
\
-drive file=/usr/share/qemu/OVMF.fd,if=pflash,format=raw,unit=0,readonly=on \
-drive file=/mnt/120GB_SSD/wintpm_VARS.fd,if=pflash,format=raw,unit=1 \
-drive
file=/mnt/120GB_SSD/wintpm.qcow2,format=qcow2,if=none,id=drive-virtio-disk0 \
-device
virtio-blk-pci,scsi=off,bus=pci.2,addr=0x3,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=2
\
-drive file="/mnt/share/Filestorage/Images/Microsoft Windows 10 Pro
x64.iso",format=raw,if=none,media=cdrom,id=drive-sata0-0-0,readonly=on \
-device ide-cd,bus=ide.0,drive=drive-sata0-0-0,id=sata0-0-0 \
-drive
file=/mnt/share/Filestorage/Images/virtio-win-0.1.117.iso,format=raw,if=none,media=cdrom,id=drive-sata0-0-1,readonly=on
\
-device ide-cd,bus=ide.1,drive=drive-sata0-0-1,id=sata0-0-1 \
-tpmdev
passthrough,id=tpm-tpm0,path=/dev/tpm0,cancel-path=/sys/class/tpm/tpm0/device/cancel
\
-device tpm-tis,tpmdev=tpm-tpm0,id=tpm0
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