Support for TPM command line options
This patch adds support for TPM command line options.
The command line options supported here are
./qemu-... -tpmdev passthrough,path=<path to TPM device>,id=<id>
-device tpm-tis,tpmdev=<id>,id=<other id>
and
./qemu-... -tpmdev help
where the latter works similar to -soundhw help and shows a list of
available TPM backends (for example 'passthrough').
Using the type parameter, the backend is chosen, i.e., 'passthrough' for the
passthrough driver. The interpretation of the other parameters along
with determining whether enough parameters were provided is pushed into
the backend driver, which needs to implement the interface function
'create' and return a TPMDriverOpts structure if the VM can be started or
'NULL' if not enough or bad parameters were provided.
Monitor support for 'info tpm' has been added. It for example prints the
following:
(qemu) info tpm
TPM devices:
tpm0: model=tpm-tis
\ tpm0: type=passthrough,path=/dev/tpm0,cancel-path=/sys/devices/pnp0/00:09/cancel
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com>
Message-id: 1361987275-26289-2-git-send-email-stefanb@linux.vnet.ibm.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/hmp.c b/hmp.c
index 2f47a8a..b0a861c 100644
--- a/hmp.c
+++ b/hmp.c
@@ -607,6 +607,50 @@
}
}
+void hmp_info_tpm(Monitor *mon, const QDict *qdict)
+{
+ TPMInfoList *info_list, *info;
+ Error *err = NULL;
+ unsigned int c = 0;
+ TPMPassthroughOptions *tpo;
+
+ info_list = qmp_query_tpm(&err);
+ if (err) {
+ monitor_printf(mon, "TPM device not supported\n");
+ error_free(err);
+ return;
+ }
+
+ if (info_list) {
+ monitor_printf(mon, "TPM device:\n");
+ }
+
+ for (info = info_list; info; info = info->next) {
+ TPMInfo *ti = info->value;
+ monitor_printf(mon, " tpm%d: model=%s\n",
+ c, TpmModel_lookup[ti->model]);
+
+ monitor_printf(mon, " \\ %s: type=%s",
+ ti->id, TpmType_lookup[ti->type]);
+
+ switch (ti->tpm_options->kind) {
+ case TPM_TYPE_OPTIONS_KIND_TPM_PASSTHROUGH_OPTIONS:
+ tpo = ti->tpm_options->tpm_passthrough_options;
+ monitor_printf(mon, "%s%s%s%s",
+ tpo->has_path ? ",path=" : "",
+ tpo->has_path ? tpo->path : "",
+ tpo->has_cancel_path ? ",cancel-path=" : "",
+ tpo->has_cancel_path ? tpo->cancel_path : "");
+ break;
+ case TPM_TYPE_OPTIONS_KIND_MAX:
+ break;
+ }
+ monitor_printf(mon, "\n");
+ c++;
+ }
+ qapi_free_TPMInfoList(info_list);
+}
+
void hmp_quit(Monitor *mon, const QDict *qdict)
{
monitor_suspend(mon);
