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Re: [libvirt] [PATCH v6 00/11] Add support for guests with TPM passthrough device



On 04/12/2013 09:37 AM, Daniel P. Berrange wrote:
On Fri, Apr 12, 2013 at 09:25:14AM -0400, Stefan Berger wrote:
Hello!

The following set of patches adds support to libvirt for
adding a TPM passthrough device to a QEMU guest. Support for
this was recently accepted into QEMU.

This set of patches borrows a lot from the recently added support
for rng's.

Regards,
     Stefan

---
v5->v6:
   - followed tree to 039a3283
   - simplified virTPMFindCancelPath in 4/11 following D. Berrange's comments
ACK to all patches in v6.
Argh, after removing the cancel_path from the virDomainTPMDef structure and now determining the cancel_path at the places where it is needed and verifying that the file actually exists, the test case only works if the device actually exists since it runs through that code when creating the QEMU command line... The idea is to SELinux label the device it in libvirt, which is a 'must', and pass that same file that was labeled via QEMU command line for QEMU to just use it. QEMU, however, can determine this file itself also -- though I should simplify the code there as well. I thought it was better to not assume the two are in lock-step, i.e., can find the same file, but let libvirt pass the file that was determined.

What do you suggest?

   Stefan


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