On 05/21/2018 06:49 PM, John Ferlan wrote:

On 05/15/2018 08:26 PM, Stefan Berger wrote:
This patch extends the TPM's device XML with TPM 2 support. This only works
for the emulator type backend and looks as follows:

     <tpm model='tpm-tis'>
       <backend type='emulator' version='2'/>
     </tpm>

The swtpm process now has --tpm2 as an additional parameter:

system_u:system_r:svirt_t:s0:c597,c632 tss 18477 11.8  0.0 28364  3868 ?        
Rs   11:13  13:50 /usr/bin/swtpm socket --daemon --ctrl 
type=unixio,path=/var/run/libvirt/qemu/swtpm/testvm-swtpm.sock,mode=0660 
--tpmstate dir=/var/lib/libvirt/swtpm/testvm/tpm2,mode=0640 --log 
file=/var/log/swtpm/libvirt/qemu/testvm-swtpm.log --tpm2 --pid 
file=/var/run/libvirt/qemu/swtpm/testvm-swtpm.pid

The version of the TPM can be changed and the state of the TPM is preserved.

Signed-off-by: Stefan Berger <stef...@linux.vnet.ibm.com>
---
  docs/formatdomain.html.in                          | 15 ++++-
  docs/schemas/domaincommon.rng                      | 12 ++++
  src/conf/domain_conf.c                             | 27 ++++++++-
  src/conf/domain_conf.h                             |  6 ++
  src/qemu/qemu_tpm.c                                | 64 +++++++++++++++++++++-
  .../tpm-emulator-tpm2.x86_64-latest.args           | 33 +++++++++++
  tests/qemuxml2argvdata/tpm-emulator-tpm2.xml       | 30 ++++++++++
  tests/qemuxml2argvtest.c                           |  1 +
  tests/qemuxml2xmloutdata/tpm-emulator-tpm2.xml     | 34 ++++++++++++
  9 files changed, 217 insertions(+), 5 deletions(-)
  create mode 100644 tests/qemuxml2argvdata/tpm-emulator-tpm2.x86_64-latest.args
  create mode 100644 tests/qemuxml2argvdata/tpm-emulator-tpm2.xml
  create mode 100644 tests/qemuxml2xmloutdata/tpm-emulator-tpm2.xml

Reviewed-by: John Ferlan <jfer...@redhat.com>

John

Too bad we're stuck with help scraping for swtpm_setup rather than using
some sort of ioctl to get the version support...


Thanks for the review. swtpm_setup is not a daemon or so that's running and we could ask for its version...

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