[libvirt PATCH] tests: add warning that qemucapsprobe prefers native host/guest arch

[Daniel P. Berrangé <berrange@xxxxxxxxxx>]

Generally we want the QEMU capabilities data in git to report KVM
related features, and thus we strongly prefer that the capabilities are
generated on a native host.

Signed-off-by: Daniel P. Berrangé <berrange@xxxxxxxxxx>
---
 tests/qemucapsprobe.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/tests/qemucapsprobe.c b/tests/qemucapsprobe.c
index 26ea9ff5ed..e4d09468bd 100644
--- a/tests/qemucapsprobe.c
+++ b/tests/qemucapsprobe.c
@@ -46,6 +46,7 @@ main(int argc, char **argv)
 {
     virThread thread;
     virQEMUCapsPtr caps;
+    virArch guest, host;
     const char *mock = VIR_TEST_MOCK("qemucapsprobe");
 
     if (!virFileIsExecutable(mock)) {
@@ -80,6 +81,17 @@ main(int argc, char **argv)
                                                  -1, -1, NULL, 0, NULL)))
         return EXIT_FAILURE;
 
+    host = virArchFromHost();
+    guest = virQEMUCapsGetArch(caps);
+
+    if (host != guest)
+        fprintf(stderr,
+                "WARNING: guest architecture '%s' does not match host '%s'.\n"
+                "WARNING: When generating capabilities for the libvirt test\n"
+                "WARNING: suite, it is strongly desired to generate capabilities\n"
+                "WARNING: on the native host to capture KVM related features.\n",
+                virArchToString(guest), virArchToString(host));
+
     virObjectUnref(caps);
 
     return EXIT_SUCCESS;
-- 
2.30.2