It works in my side after specify the full path to swtpm tpmemu.sock in qemu 
command options. Thanks!


Steven Shi
Intel\SSG\STO\UEFI Firmware

Tel: +86 021-61166522
iNet: 821-6522

> -----Original Message-----
> From: Stefan Berger [mailto:stef...@linux.vnet.ibm.com]
> Sent: Friday, March 9, 2018 9:54 PM
> To: Shi, Steven <steven....@intel.com>; Marc-André Lureau
> <marcandre.lur...@gmail.com>
> Cc: edk2-de...@lists.01.org; ler...@redhat.com; pjo...@redhat.com; Yao,
> Jiewen <jiewen....@intel.com>; qemu-devel@nongnu.org;
> javi...@redhat.com
> Subject: Re: [edk2] [PATCH v2 0/8] RFC: ovmf: preliminary TPM2 support
> 
> 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
> >

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