| Message ID | 20211103150910.69732-6-ilias.apalodimas@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | TPM cleanups and MMIO driver | expand |
On Wed, 3 Nov 2021 at 09:09, Ilias Apalodimas <ilias.apalodimas@linaro.org> wrote: > > A previous patch added support for an mmio based TPM. > Add an example in QEMU on it's usage > > Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> > --- > doc/board/emulation/qemu-arm.rst | 25 +++++++++++++++++++++++++ > 1 file changed, 25 insertions(+) > Reviewed-by: Simon Glass <sjg@chromium.org> Any particular QEMU version? We should enable this in CI. > diff --git a/doc/board/emulation/qemu-arm.rst b/doc/board/emulation/qemu-arm.rst > index 8d7fda10f15e..584ef0a7e150 100644 > --- a/doc/board/emulation/qemu-arm.rst > +++ b/doc/board/emulation/qemu-arm.rst > @@ -81,6 +81,31 @@ can be enabled with the following command line parameters: > > These have been tested in QEMU 2.9.0 but should work in at least 2.5.0 as well. > > +Enabling TPMv2 support > +---------------------- > + > +To emulate a TPM the swtpm package may be used. It can be built from the > +following repositories: > + > + https://github.com/stefanberger/swtpm.git > + > +Swtpm provides a socket for the TPM emulation which can be consumed by QEMU. > + > +In a first console invoke swtpm with:: > + > + swtpm socket --tpmstate dir=/tmp/mytpm1 \ > + --ctrl type=unixio,path=/tmp/mytpm1/swtpm-sock --log level=20 > + > +In a second console invoke qemu-system-aarch64 with:: > + > + -chardev socket,id=chrtpm,path=/tmp/mytpm1/swtpm-sock \ > + -tpmdev emulator,id=tpm0,chardev=chrtpm \ > + -device tpm-tis-device,tpmdev=tpm0 > + > +Enable the TPM on U-Boot's command line with:: > + > + tpm2 startup TPM2_SU_CLEAR > + > Debug UART > ---------- > > -- > 2.33.1 > Regards, Simon
diff --git a/doc/board/emulation/qemu-arm.rst b/doc/board/emulation/qemu-arm.rst index 8d7fda10f15e..584ef0a7e150 100644 --- a/doc/board/emulation/qemu-arm.rst +++ b/doc/board/emulation/qemu-arm.rst @@ -81,6 +81,31 @@ can be enabled with the following command line parameters: These have been tested in QEMU 2.9.0 but should work in at least 2.5.0 as well. +Enabling TPMv2 support +---------------------- + +To emulate a TPM the swtpm package may be used. It can be built from the +following repositories: + + https://github.com/stefanberger/swtpm.git + +Swtpm provides a socket for the TPM emulation which can be consumed by QEMU. + +In a first console invoke swtpm with:: + + swtpm socket --tpmstate dir=/tmp/mytpm1 \ + --ctrl type=unixio,path=/tmp/mytpm1/swtpm-sock --log level=20 + +In a second console invoke qemu-system-aarch64 with:: + + -chardev socket,id=chrtpm,path=/tmp/mytpm1/swtpm-sock \ + -tpmdev emulator,id=tpm0,chardev=chrtpm \ + -device tpm-tis-device,tpmdev=tpm0 + +Enable the TPM on U-Boot's command line with:: + + tpm2 startup TPM2_SU_CLEAR + Debug UART ----------
A previous patch added support for an mmio based TPM. Add an example in QEMU on it's usage Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> --- doc/board/emulation/qemu-arm.rst | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) -- 2.33.1