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author | Amarnath Valluri <amarnath.valluri@intel.com> | 2017-09-29 14:10:20 +0300 |
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committer | Stefan Berger <stefanb@linux.vnet.ibm.com> | 2017-10-13 07:34:33 -0400 |
commit | f4ede81eed29e6140374177d1f2808248c5b5650 (patch) | |
tree | e4d15d8decf07865b35c0ad01e64ef152bcf853f /pc-bios/vgabios-qxl.bin | |
parent | 4a3d80980ebf71d8faf9d0ce2e2e23bdda5728df (diff) |
tpm: Added support for TPM emulator
This change introduces a new TPM backend driver that can communicate with
swtpm(software TPM emulator) using unix domain socket interface. QEMU talks to
the TPM emulator using QEMU's socket-based chardev backend device.
Swtpm uses two Unix sockets for communications, one for plain TPM commands and
responses, and one for out-of-band control messages. QEMU passes the data
socket to be used over the control channel.
The swtpm and associated tools can be found here:
https://github.com/stefanberger/swtpm
The swtpm's control channel protocol specification can be found here:
https://github.com/stefanberger/swtpm/wiki/Control-Channel-Specification
Usage:
# setup TPM state directory
mkdir /tmp/mytpm
chown -R tss:root /tmp/mytpm
/usr/bin/swtpm_setup --tpm-state /tmp/mytpm --createek
# Ask qemu to use TPM emulator with given tpm state directory
qemu-system-x86_64 \
[...] \
-chardev socket,id=chrtpm,path=/tmp/swtpm-sock \
-tpmdev emulator,id=tpm0,chardev=chrtpm \
-device tpm-tis,tpmdev=tpm0 \
[...]
Signed-off-by: Amarnath Valluri <amarnath.valluri@intel.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Diffstat (limited to 'pc-bios/vgabios-qxl.bin')
0 files changed, 0 insertions, 0 deletions