Tolerate lack of platform-specific hosts in old Xen branches

Right now we have a situation where these can't all be made to work
because because some older Xen branches are hard to make work on
current Debian stable, and we have some hardware (which we have tagged
as specific "platforms") which doesn't work with oldstable.

This seems like a general problem, so fix it this way.

Note that we still treat these failed allocations as failures, so they
are subject to regression analysis and ought not to appear willy-nilly
on existing branches.

Runvar dump shows the addition of this runvar
   hostalloc_missing_expected=1
to
   qemu-upstream-4.6-testing
   xen-4.6-testing
   ...
   qemu-upstream-4.14-testing
   xen-4.14-testing
inclusive.

Signed-off-by: Ian Jackson <iwj@xenproject.org>

diff --git a/make-flight b/make-flight
index d5a3d99a92514703ba6868effd112ff4cb6a2946..fb38bc5041bc8c03b3b22be8103f93405afa5148 100755 (executable)
--- a/make-flight
+++ b/make-flight
@@ -643,13 +643,27 @@ do_pv_debian_tests () {
   for xsm in $xsms ; do
     # Basic PV Linux test with xl
     for platform in '' `getplatforms $xenarch $defsuite` ; do
+      platform_runvars=''
 
       # xsm test is not platform specific
       if [ x$xsm = xtrue -a x$platform != x ]; then
           continue
       fi
 
-      do_pv_debian_test_one xl '' xl "$platform" enable_xsm=$xsm
+      missing_expected=false
+      if [ x$platform != x ]; then
+        case "$xenbranch" in
+          xen-3.*-testing)  missing_expected=true ;;
+          xen-4.*-testing)  missing_expected=true ;;
+          *) ;;
+        esac
+      fi
+      if $missing_expected; then
+        platform_runvars+=hostalloc_missing_expected=1
+      fi
+
+      do_pv_debian_test_one xl '' xl "$platform" enable_xsm=$xsm \
+                            $platform_runvars
 
     done
   done