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authorChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:24:58 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:27:06 +0000
commit33606b41d35115f887ea688b1a16f2ff85bf2fe4 (patch)
tree406b2c7b19a087ba437c68f3dbf0b589fa1d6150 /results/scraper/launchpad-without-comments/1615823
parentadedf8771bc4de3113041ca21bd4d0d1c0014b6a (diff)
downloademulator-bug-study-33606b41d35115f887ea688b1a16f2ff85bf2fe4.tar.gz
emulator-bug-study-33606b41d35115f887ea688b1a16f2ff85bf2fe4.zip
add launchpad bug reports without comments
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+Windows 10 reports no compatible TPM found yet device manager shows it?
+
+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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