Re: [PATCH v2 0/8] RFC: ovmf: preliminary TPM2 support

["Shi, Steven" <steven.shi@intel.com>]

Hi Marcandre,
Thanks for your command steps and I tried them, but my qemu failed to connect the socket tpmemu.sock. When I added the control channel to the TPM, the swtpm socket command stuck there and never exit. Not sure whether it was successful. 
Below are the command steps running output in my side

> Then you can run:
> mkdir tpmstatedir
> swtpm_setup.sh --tpm2 --tpm-state tpmstatedir
$ swtpm_setup.sh --tpm2 --tpm-state tpmstatedir
Starting vTPM manufacturing as jshi19:jshi19 @ 2018年03月09日 星期五 10时28分39秒
TPM is listening on TCP port 47364.
Successfully authored TPM state.
Ending vTPM manufacturing @ 2018年03月09日 星期五 10时28分39秒

> Run the emulator:
> swtpm socket --tpmstate dir=tpmstatedir --ctrl type=unixio,path=tpmemu.sock  --tpm2
$ swtpm socket --tpmstate dir=tpmstatedir --ctrl type=unixio,path=tpmemu.sock --tpm2
(the swtpm socket command stuck there and never exit)

> Run qemu (from git) with ovmf (with this series):
> qemu ... -chardev socket,id=chrtpm,path=tpmemu.sock -tpmdev
> emulator,id=tpm0,chardev=chrtpm  -device tpm-crb,tpmdev=tpm0
> -drive if=pflash,format=raw,file=OVMF_CODE.fd,readonly -drive
> if=pflash,format=raw,file=OVMF_VARS.fd ..
$ qemu-system-x86_64  -serial file:serial.log -m 5120 -hda fat:. -monitor stdio --enable-kvm -smp 4 -bios ../Ovmf3264/NOOPT_GCC5/FV/OVMF.fd -chardev socket,id=chrtpm,path=tpmemu.sock -tpmdev emulator,id=tpm0,chardev=chrtpm  -device tpm-crb,tpmdev=tpm0
qemu-system-x86_64: -chardev socket,id=chrtpm,path=tpmemu.sock: Failed to connect socket tpmemu.sock: No such file or directory

I use the latest version qemu as below:
$ qemu-system-x86_64 --version
QEMU emulator version 2.11.50 (v2.10.0-4184-g930b01138b-dirty)
Copyright (c) 2003-2017 Fabrice Bellard and the QEMU Project developers

Thanks
Steven Shi