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3 Commits

Author SHA1 Message Date
Michal Privoznik
dcc278d04e qemuxml2xmloutdata: Turn tpm-*.xml files into symlinks 
Make the tpm-*.xml files symlinks to their respective input XMLs
from qemuxml2argvdata/ directory. Neither of the XMLs relies on
autofill of any TPM data.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
 2022-01-04 10:23:11 +01:00
Stefan Berger
a5bbe1a8b6 qemu: tpm: Extend TPM domain XML with PCR banks to activate 
Extend the TPM backend XML with a node 'active_pcr_banks' that allows a
user to specify the PCR banks to activate before starting a VM. Valid
choices for PCR banks are sha1, sha256, sha384 and sha512. When the XML
node is provided, the set of active PCR banks is 'enforced' by running
swtpm_setup before every start of the VM. The activation requires that
swtpm_setup v0.7 or later is installed and may not have any effect
otherwise.

<tpm model='tpm-tis'>
  <backend type='emulator' version='2.0'>
    <active_pcr_banks>
      <sha256/>
      <sha384/>
    </active_pcr_banks>
  </backend>
</tpm>

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=2016599

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
 2021-11-05 09:22:50 +01:00
Stefan Berger
8737578d11 conf: Add support for choosing emulation of a TPM 2.0 
This patch extends the TPM's device XML with TPM 2.0 support. This only works
for the emulator type backend and looks as follows:

    <tpm model='tpm-tis'>
      <backend type='emulator' version='2.0'/>
    </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 <stefanb@linux.vnet.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
 2018-06-06 10:48:41 -04:00