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| author | Ilias Apalodimas <ilias.apalodimas@linaro.org> | 2021-11-09 10:02:21 +0300 |
|---|---|---|
| committer | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2021-11-10 22:57:54 +0300 |
| commit | be2868f097ee06ee98e71050f18d5d729106978f (patch) | |
| tree | af2878ffd1816e1e2849eaee30cc0f96b6375dda /doc | |
| parent | 1fb868c6b2e112242c71be8de3be0895ba979f3d (diff) | |
| download | u-boot-be2868f097ee06ee98e71050f18d5d729106978f.tar.xz | |
doc: qemu: Add instructions for swtpm usage
A previous patch added support for an mmio based TPM.
Add an example in QEMU on it's usage
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/board/emulation/qemu-arm.rst | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/doc/board/emulation/qemu-arm.rst b/doc/board/emulation/qemu-arm.rst index 8d7fda10f1..584ef0a7e1 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 ---------- |