On Fri, 05 Jul 2019 13:42:18 +0300 Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx> wrote: > On Wed, 2019-07-03 at 23:32 -0400, Nayna Jain wrote: > > The nr_allocated_banks and allocated banks are initialized as part of > > tpm_chip_register. Currently, this is done as part of auto startup > > function. However, some drivers, like the ibm vtpm driver, do not run > > auto startup during initialization. This results in uninitialized memory > > issue and causes a kernel panic during boot. > > > > This patch moves the pcr allocation outside the auto startup function > > into tpm_chip_register. This ensures that allocated banks are initialized > > in any case. > > > > Fixes: 879b589210a9 ("tpm: retrieve digest size of unknown algorithms with > > PCR read") > > Signed-off-by: Nayna Jain <nayna@xxxxxxxxxxxxx> > > Please add > > Reported-by: Michal Suchanek <msuchanek@xxxxxxx> > > It is missing. Michal is there a chance you could try this out once > Nayna send a new version? Should be easy to test. Without the patch the machine crashes on boot so it is quite obvious case. I have a few VMs with the vTPM available. Thanks Michal