Using the IBM TSS with swtpm

To use the IBM TSS for TPM 2 directly with swtpm, you can use the following commands:

Start swtpm in one terminal:

mkdir /tmp/myvtpm
swtpm socket --tpmstate dir=/tmp/myvtpm --tpm2 --ctrl type=tcp,port=2322 --server type=tcp,port=2321 --flags not-need-init

Do some operations with the TSS stack in another terminal:

export TPM_COMMAND_PORT=2321 TPM_PLATFORM_PORT=2322 TPM_SERVER_NAME=localhost TPM_SERVER_TYPE=raw
tssstartup
tsspcrread -ha 10
count 1 pcrUpdateCounter 21 
 digest length 32
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

To reset swtpm run the following command:

swtpm_ioctl -i --tcp :2322