From: Eric Auger <eric.au...@redhat.com>
Update the documentation with recent changes related to the
sysbus TPM_TIS device addition and add the command line
to be used with arm VIRT.
Signed-off-by: Eric Auger <eric.au...@redhat.com>
Reviewed-by: Stefan Berger <stef...@linux.ibm.com>
Message-id: 20200226205942.11424-8-eric.au...@redhat.com
Signed-off-by: Stefan Berger <stef...@linux.ibm.com>
---
docs/specs/tpm.rst | 25 ++++++++++++++++++++++++-
1 file changed, 24 insertions(+), 1 deletion(-)
diff --git a/docs/specs/tpm.rst b/docs/specs/tpm.rst
index 2bdf637f55..da9eb39ca9 100644
--- a/docs/specs/tpm.rst
+++ b/docs/specs/tpm.rst
@@ -18,9 +18,15 @@ The TIS interface makes a memory mapped IO region in the area
0xfed40000-0xfed44fff available to the guest operating system.
QEMU files related to TPM TIS interface:
- - ``hw/tpm/tpm_tis.c``
+ - ``hw/tpm/tpm_tis_common.c``
+ - ``hw/tpm/tpm_tis_isa.c``
+ - ``hw/tpm/tpm_tis_sysbus.c``
- ``hw/tpm/tpm_tis.h``
+Both an ISA device and a sysbus device are available. The former is
+used with pc/q35 machine while the latter can be instantiated in the
+ARM virt machine.
+
CRB interface
-------------
@@ -325,6 +331,23 @@ In case a pSeries machine is emulated, use the following
command line:
-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 an ARM virt machine is emulated, use the following command line:
+
+.. code-block:: console
+
+ qemu-system-aarch64 -machine virt,gic-version=3,accel=kvm \
+ -cpu host -m 4G \
+ -nographic -no-acpi \
+ -chardev socket,id=chrtpm,path=/tmp/mytpm1/swtpm-sock \
+ -tpmdev emulator,id=tpm0,chardev=chrtpm \
+ -device tpm-tis-device,tpmdev=tpm0 \
+ -device virtio-blk-pci,drive=drv0 \
+ -drive format=qcow2,file=hda.qcow2,if=none,id=drv0 \
+ -drive if=pflash,format=raw,file=flash0.img,readonly \
+ -drive if=pflash,format=raw,file=flash1.img
+
+ On ARM, ACPI boot with TPM is not yet supported.
+
In case SeaBIOS is used as firmware, it should show the TPM menu item
after entering the menu with 'ESC'.
--
2.24.1
