+Ilias Apalodimas
On Tue, 15 Nov 2022 at 23:12, Tasos Terzidis <terzana...@gmail.com> wrote: > > Hello, > > I tried to use a tpm2 command for reading the NV memory index of an slb9670 > TPM. > > I noticed in file cmd/tpm-v2.c, that the command tpm2 nv_read_value (as tpm > nv_read_value) > > is not implemented. In file lib/tpm-v2.c there is the tpm2_nv_read_value > function. > > Do you plan to implement the command tpm2 nv_read_value in the future ? > > > > Then I used the > > tpm nv_read_value index addr count > > "Read <count> bytes from space <index> to memory address <addr>". > > > > The syntax I used is > > tpm nv_read_value 0x100000000 0x30000000 20 > > I’m trying to read 32 bytes from 0x100000000 index nv memory of TPM > > to 0x30000000 memory of u-boot > > U-boot can’t understand the command and returns the help listing all the > commands for tpm. > > I also used > > tpm nv_read_value 0x0 0x30000000 20 > > 0x0 as an offset to 0x100000000 index of NV memory (following the syntax of > tpm2_nvread command o TSS tpm –tools) > > > Same result, list of commands for tpm > > > > Other commands of tpm such as tpm2 pcr read or extend functions as expected > in u-boot environment > > > > I can’t understand what I do wrong > > > > Thank you > > Tasos Terzids