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[PATCH v5 5/5] docs: tpm: Add example command line for ppc64 and tpm-spa

From: Stefan Berger
Subject: [PATCH v5 5/5] docs: tpm: Add example command line for ppc64 and tpm-spapr
Date: Thu, 12 Dec 2019 15:24:30 -0500

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 <address@hidden>

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 
+  -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'.

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