Hi Jordi, On Mon, Aug 20, 2012 at 06:12:44PM -0400, Jordi Cucurull Juan wrote: > Dear all, > > I am testing the TPM patches of Stefan Berger to provide TPM support > to QEMU. Nevertheless I have not managed to run them successfully. > During the compilation of QEMU with his patches (V18 for revision > 563987d) I have not had any issue. But, I have a virtual machine > based on CentOS 6.2 and the TPM does not seem to be present. I run > the machine with the following command line (as a root user): > > # /usr/local/bin/qemu-system-x86_64 -hda qemu-disk-centos.img -m > 1024 -boot d -enable-kvm -usbdevice tablet -k es -tpmdev > passthrough,id=tpm0,path=/dev/tpm0 -device tpm-tis,tpmdev=tpm0 > > My real machine has an Infineon TPM v1.2. When I try to load the TSS > library (Trousers) inside the client machine (the CentOS 6.2) it > throws the following error: > > insmod: error inserting > '/lib/modules/2.6.32-279.5.1.el6.x86_64/kernel/drivers/char/tpm/tpm_atmel.ko': > -1 no such device
This should be fine - the tpm_tis driver should be driving the vtpm. > > Apart from this, QEMU does not throw any error. Should I enable > something else to have access to the TPM? In addition, I do not see > any /dev/vtpm0 device in my real machine. As I understand them, the qemu patches allow direct writing from the guest to the host's /dev/tpm0, so you wouldn't see a new device node. Kent > > Best regards, > Jordi. > > > -- > Jordi Cucurull Juan > Researcher > Scytl Secure Electronic Voting > Plaça Gal·la Placidia, 1-3, 1st floor · 08006 Barcelona > Phone: + 34 934 230 324 > Fax + 34 933 251 028 > jordi.cucur...@scytl.com > http://www.scytl.com > > NOTICE: The information in this e-mail and in any of its attachments is > confidential and intended solely for the attention and use of the named > addressee(s). If you are not the intended recipient, any disclosure, copying, > distribution or retaining of this message or any part of it, without the > prior written consent of Scytl Secure Electronic Voting, SA is prohibited and > may be unlawful. If you have received this in error, please contact the > sender and delete the material from any computer. > > Your data are in a file owned by Scytl Secure Electronic Voting, S.A. You can > exercice your rights of access, rectification, cancellation and opposition by > contacting Scytl Secure Electronic Voting, S.A. at the following address: > Gal·la Placídia, 1-3. 1st, 08006 Barcelona (Spain), according to the Organic > Law 15/1999, of 13th December of Protection of Personal Data. > >
