[PATCH 3/3] ci: Update comment for migration-compat-aarch64

[peterx@redhat.com]

From: Peter Xu <peterx@redhat.com>

It turns out that we may not be able to enable this test even for the
upcoming v9.0.  Document what we're still missing.

Signed-off-by: Peter Xu <peterx@redhat.com>
---
 .gitlab-ci.d/buildtest.yml | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/.gitlab-ci.d/buildtest.yml b/.gitlab-ci.d/buildtest.yml
index df48c9d31d..f01d6d0cdf 100644
--- a/.gitlab-ci.d/buildtest.yml
+++ b/.gitlab-ci.d/buildtest.yml
@@ -219,9 +219,10 @@ build-previous-qemu:
     - QTEST_QEMU_BINARY_DST=./qemu-system-${TARGET}
           QTEST_QEMU_BINARY=../build/qemu-system-${TARGET} ./tests/qtest/migration-test
 
-# This job is disabled until we release 9.0. The existing
-# migration-test in 8.2 is broken on aarch64. The fix was already
-# commited, but it will only take effect once 9.0 is out.
+# This job needs to be disabled until we can have an aarch64 CPU model that
+# will both (1) support both KVM and TCG, and (2) provide a stable ABI.
+# Currently only "-cpu max" can provide (1), however it doesn't guarantee
+# (2).  Mark this test skipped until later.
 migration-compat-aarch64:
   extends: .migration-compat-common
   variables:
-- 
2.43.0