[RFC PATCH v2 8/8] qemu: Extend swtpm_setup command line to set a profile by its name

[Stefan Berger <stefanb@xxxxxxxxxxxxx>]

Runs swtpm_setup with the --profile-name option if the user provided the
name of a profile. swtpm_setup will try to load the profile from
directories with local profiles and distro profiles and if no profile
by this name with appended '.json' suffix could be found there, it will
fall back to try to use an internal profile with the given name.

Also set the --profile-remove-disabled option if the user provided a value
in the remove_disabled attribute in the profile XML node.

Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxxxxx>
---
 src/qemu/qemu_tpm.c | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/src/qemu/qemu_tpm.c b/src/qemu/qemu_tpm.c
index e8e7e8b5c1..48446cd631 100644
--- a/src/qemu/qemu_tpm.c
+++ b/src/qemu/qemu_tpm.c
@@ -340,6 +340,40 @@ qemuTPMVirCommandAddEncryption(virCommand *cmd,
 }
 
 
+/*
+ * Add a (optional) profile to the swtpm_setup command line.
+ *
+ * @cmd: virCommand to add options to
+ * @emulator: emulator parameters
+ *
+ * Returns 0 on success, -1 on failure.
+ */
+static int
+qemuTPMVirCommandAddProfile(virCommand *cmd,
+                            const virDomainTPMEmulatorDef *emulator)
+{
+    if (!emulator->profile_name)
+        return 0;
+
+    if (!virTPMSwtpmSetupCapsGet(
+            VIR_TPM_SWTPM_SETUP_FEATURE_CMDARG_PROFILE)) {
+        virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
+                       _("swtpm_setup has no support for profiles"));
+        return -1;
+    }
+
+    virCommandAddArgList(cmd,
+                         "--profile-name", emulator->profile_name,
+                         NULL);
+
+    if (emulator->profile_remove_disabled)
+        virCommandAddArgList(cmd,
+                             "--profile-remove-disable",
+                             emulator->profile_remove_disabled,
+                             NULL);
+    return 0;
+}
+
 /*
  * qemuTPMEmulatorRunSetup
  *
@@ -416,6 +450,8 @@ qemuTPMEmulatorRunSetup(const char *storagepath,
                              "--lock-nvram",
                              "--not-overwrite",
                              NULL);
+        if (qemuTPMVirCommandAddProfile(cmd, emulator) < 0)
+            return -1;
     } else {
         virCommandAddArgList(cmd,
                              "--tpm-state", storagepath,
-- 
2.46.1