Add an example to the TPM docs for how to add a TPM SPAPR device model to a QEMU VM emulating a pSeries machine.
Signed-off-by: Stefan Berger <stef...@linux.ibm.com> diff --git a/docs/specs/tpm.txt b/docs/specs/tpm.txt index 9c8cca042d..9c3e67d8a7 100644 --- a/docs/specs/tpm.txt +++ b/docs/specs/tpm.txt @@ -34,6 +34,12 @@ The CRB interface makes a memory mapped IO region in the area 0xfed40000 - QEMU files related to TPM CRB interface: - hw/tpm/tpm_crb.c + +pSeries (ppc64) machines offer a tpm-spapr device model. + +QEMU files related to the SPAPR interface: + - hw/tpm/tpm_spapr.c + = fw_cfg interface = The bios/firmware may read the "etc/tpm/config" fw_cfg entry for @@ -281,7 +287,7 @@ swtpm socket --tpmstate dir=/tmp/mytpm1 \ --log level=20 Command line to start QEMU with the TPM emulator device communicating with -the swtpm: +the swtpm (x86): qemu-system-x86_64 -display sdl -accel kvm \ -m 1024 -boot d -bios bios-256k.bin -boot menu=on \ @@ -289,6 +295,18 @@ qemu-system-x86_64 -display sdl -accel kvm \ -tpmdev emulator,id=tpm0,chardev=chrtpm \ -device tpm-tis,tpmdev=tpm0 test.img +In case a pSeries machine is emulated, use the following command line: + +qemu-system-ppc64 -display sdl -machine pseries,accel=kvm \ + -m 1024 -bios slof.bin -boot menu=on \ + -nodefaults -device VGA -device pci-ohci -device usb-kbd \ + -chardev socket,id=chrtpm,path=/tmp/mytpm1/swtpm-sock \ + -tpmdev emulator,id=tpm0,chardev=chrtpm \ + -device tpm-spapr,tpmdev=tpm0 \ + -device spapr-vscsi,id=scsi0,reg=0x00002000 \ + -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x3,drive=drive-virtio-disk0,id=virtio-disk0 \ + -drive file=test.img,format=raw,if=none,id=drive-virtio-disk0 + In case SeaBIOS is used as firmware, it should show the TPM menu item after entering the menu with 'ESC'. -- 2.21.0
