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tests/qtest/migration-test: Enable on ppc64 TCG

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ppc64 with TCG seems to no longer be failing this test, perhaps since
commit 03bfc2188f061 ("physmem: Fix migration dirty bitmap coherency
with TCG memory access") which is not ppc specific but was seen to hit
ppc64 quite easily.

Let's enable it again.

The s390x problem has been identified so mention it while we are
adjusting the comment.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Prasad Pandit <pjp@fedoraproject.org>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
This commit is contained in:
Nicholas Piggin 2024-05-30 17:44:51 +10:00 committed by Fabiano Rosas
parent ea6ce9109e
commit bd1dcd86a0
1 changed files with 3 additions and 13 deletions
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16
tests/qtest/migration-test.c
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@ -3454,19 +3454,9 @@ int main(int argc, char **argv)
#endif
/*
* On ppc64, the test only works with kvm-hv, but not with kvm-pr and TCG
* is touchy due to race conditions on dirty bits (especially on PPC for
* some reason)
*/
if (g_str_equal(arch, "ppc64") &&
(!has_kvm || access("/sys/module/kvm_hv", F_OK))) {
g_test_message("Skipping tests: kvm_hv not available");
goto test_add_done;
}
/*
* Similar to ppc64, s390x seems to be touchy with TCG, so disable it
* there until the problems are resolved
* On s390x with TCG, migration is observed to hang due to the 'pending'
* state of the flic interrupt controller not being migrated or
* reconstructed post-migration. Disable it until the problem is resolved.
*/
if (g_str_equal(arch, "s390x") && !has_kvm) {
g_test_message("Skipping tests: s390x host with KVM is required");