On Tue, Sep 04, 2018 at 06:55:45PM -0300, Martin Galvan wrote: > El mar., 4 sept. 2018 a las 18:33, Jason Gunthorpe (<jgg@xxxxxxxx>) escribió: > > Recursive sounds bad.. what are you seeing? > > At least on my system, /sys/class/tpm/tpm0/device has a 'tpm' dir > which seems to replicate the tpm0/device struct endlessly. Digging a > bit deeper I see: > > $ ls -l /sys/class/tpm/tpm0/device > lrwxrwxrwx 1 root root 0 Sep 4 12:15 /sys/class/tpm/tpm0/device -> > ../../../00:09 > > The 00:09 dir in turn refers to ls /sys/devices/pnp0/00:09. > > On an unrelated note: I was recently told that > /sys/class/tpm/tpm0/caps doesn't exist for TPM 2.0. This is > inconvenient, since the manufacturer and version info exposed through > that file can be used to detect CVE-2017-15361. Is there an equivalent > file for TPM 2.0? Those files do not make sense because you can get the same information by talking to /dev/tpm0. /Jarkko
