[Xen-devel] tpm front-end problem

["fan he" <hefaneden@xxxxxxxxx>]

Hello

I install 2.6.18-93.el5(contained xen3.1.2 and tpmback) which download from redhat.com to be my Dom0 and install vtpm_manager from a xen3.1.3 source packet, they work together successfully.

However there is no tpm front-end in 2.6.18-93.el5 so i manually add all the tpm related source files from xen3.1.3 packet, Makefile and Kconfig also. Some errors occur after make the kernel, so i edit the evtchn.c located in /driver/xen/core/ and make the kernel with no error.

I start DomU with vtpm configuration, run vtpm_manager in Dom0, i fail to add a tpm0 device after modprobe tpm_xenu. There is no error and no responce from the vtpm_manager. So strange.

Can anyone give me some suggestion about a workable combination of dom0 and domu with tpm front and back.
 
My screen shows as follow:
[root@localhost ~]# vtpm_managerd
INFO[VTPM]: Starting VTPM.
INFO[TCS]: Constructing new TCS:
INFO[TCS]: Calling TCS_OpenContext:
INFO[VTSP]: OIAP.
INFO[VTSP]: Loading Key into TPM.
INFO[VTSP]: Unbinding 256 bytes of data.
INFO[VTPM]: Loaded saved state (dmis = 0).
INFO[VTSP]: Loading Key into TPM.
INFO[VTPM]: Creating new DMI instance 0 attached.
INFO[TCS]: Calling TCS_OpenContext:
INFO[VTPM]: [Backend Listener]: Backend Listener waiting for messages.
INFO[VTPM]: [Hotplug Listener]: Hotplug Listener waiting for messages.
INFO[VTPM]: [VTPM Listener]: VTPM Listener waiting for messages.

[root@localhost dev]# xm info
host                   : localhost.localdomain
release                : 2.6.18-prep
version                : #1 SMP Thu Jun 26 09:50:30 CST 2008
machine                : i686
nr_cpus                : 2
nr_nodes               : 1
sockets_per_node       : 1
cores_per_socket       : 2
threads_per_core       : 1
cpu_mhz                : 1600
hw_caps                : bfebfbff:20000000:00000000:00000140:0000e39d:00000000:00000001
total_memory           : 1022
free_memory            : 2
xen_major              : 3
xen_minor              : 1
xen_extra              : .2
xen_caps               : xen-3.0-x86_32p
xen_pagesize           : 4096
platform_params        : virt_start=0xf5800000
xen_changeset          : unavailable
cc_compiler            : gcc version 4.1.2 20070626 (Red Hat 4.1.2-14)
cc_compile_by          : root
cc_compile_domain      : localdomain
cc_compile_date        : Thu Jun 26 10:16:46 CST 2008
xend_config_format     : 2

Thanks for any help

Oscar

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