diff options
Diffstat (limited to 'qemu-options.hx')
| -rw-r--r-- | qemu-options.hx | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index 981742d191..3728e9b4dd 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -3121,7 +3121,9 @@ DEF("tpmdev", HAS_ARG, QEMU_OPTION_tpmdev, \ "-tpmdev passthrough,id=id[,path=path][,cancel-path=path]\n" " use path to provide path to a character device; default is /dev/tpm0\n" " use cancel-path to provide path to TPM's cancel sysfs entry; if\n" - " not provided it will be searched for in /sys/class/misc/tpm?/device\n", + " not provided it will be searched for in /sys/class/misc/tpm?/device\n" + "-tpmdev emulator,id=id,chardev=dev\n" + " configure the TPM device using chardev backend\n", QEMU_ARCH_ALL) STEXI @@ -3130,8 +3132,8 @@ The general form of a TPM device option is: @item -tpmdev @var{backend} ,id=@var{id} [,@var{options}] @findex -tpmdev -Backend type must be: -@option{passthrough}. +Backend type must be either one of the following: +@option{passthrough}, @option{emulator}. The specific backend type will determine the applicable options. The @code{-tpmdev} option creates the TPM backend and requires a @@ -3181,6 +3183,20 @@ To create a passthrough TPM use the following two options: Note that the @code{-tpmdev} id is @code{tpm0} and is referenced by @code{tpmdev=tpm0} in the device option. +@item -tpmdev emulator, id=@var{id}, chardev=@var{dev} + +(Linux-host only) Enable access to a TPM emulator using Unix domain socket based +chardev backend. + +@option{chardev} specifies the unique ID of a character device backend that provides connection to the software TPM server. + +To create a TPM emulator backend device with chardev socket backend: +@example + +-chardev socket,id=chrtpm,path=/tmp/swtpm-sock -tpmdev emulator,id=tpm0,chardev=chrtpm -device tpm-tis,tpmdev=tpm0 + +@end example + @end table ETEXI |