Hi, > On Thu, 2019-06-27 at 16:30 +0300, Ilias Apalodimas wrote: > > is really useful. I don't have hardware to test this at the moment, but once i > > get it, i'll give it a spin. > > Thank you for responding, really appreciate it. > No worries > Please note, however, that I already did my v5.3 PR so there is a lot of > time to give it a spin. In all cases, we will find a way to put this to > my v5.4 PR. I don't see any reason why not. > > As soon as the cosmetic stuff is fixed that I remarked in v7 I'm ready > to take this to my tree and after that soonish make it available on > linux-next. I managed to do some quick testing in QEMU. Everything works fine when i build this as a module (using IBM's TPM 2.0 TSS) - As module # insmod /lib/modules/5.2.0-rc1/kernel/drivers/char/tpm/tpm_ftpm_tee.ko # getrandom -by 8 randomBytes length 8 23 b9 3d c3 90 13 d9 6b - Built-in # dmesg | grep optee ftpm-tee firmware:optee: ftpm_tee_probe:tee_client_open_session failed, err=ffff0008 ftpm-tee: probe of firmware:optee failed with error -22 # getrandom -by 8 random: fast init done urandom_read: 2 callbacks suppressed random: getrandom: uninitialized urandom read (32 bytes read) TSS_Dev_Open: Error opening /dev/tpm0 getrandom: failed, rc 000b0008 TSS_RC_NO_CONNECTION - Failure connecting to lower layer Am i missing anything? Thanks /Ilias
