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

[Stefan Berger <stefanb@linux.vnet.ibm.com>]

On 03/08/2018 10:03 PM, Shi, Steven wrote:
> 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

Try giving it both, swtpm and qemu, the full path to the socket.


>
> 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
>