[kvm-unit-tests PATCH v2 1/4] arm64: remove invalid check from its-trigger test

[Alex Bennée]

While an IRQ is not "guaranteed to be visible until an appropriate
invalidation" it doesn't stop the actual implementation delivering it
earlier if it wants to. This is the case for QEMU's TCG and as tests
should only be checking architectural compliance this check is
invalid.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Shashi Mallela <shashi.mallela@linaro.org>
---
 arm/gic.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/arm/gic.c b/arm/gic.c
index 98135ef..bef061a 100644
--- a/arm/gic.c
+++ b/arm/gic.c
@@ -732,21 +732,19 @@ static void test_its_trigger(void)
                        "dev2/eventid=20 does not trigger any LPI");
 
        /*
-        * re-enable the LPI but willingly do not call invall
-        * so the change in config is not taken into account.
-        * The LPI should not hit
+        * re-enable the LPI but willingly do not call invall so the
+        * change in config is not taken into account. While "A change
+        * to the LPI configuration is not guaranteed to be visible
+        * until an appropriate invalidation operation has completed"
+        * hardware that doesn't implement caches may have delivered
+        * the event at any point after the enabling.
         */
        gicv3_lpi_set_config(8195, LPI_PROP_DEFAULT);
        stats_reset();
        cpumask_clear(&mask);
        its_send_int(dev2, 20);
-       wait_for_interrupts(&mask);
-       report(check_acked(&mask, -1, -1),
-                       "dev2/eventid=20 still does not trigger any LPI");
 
        /* Now call the invall and check the LPI hits */
-       stats_reset();
-       cpumask_clear(&mask);
        cpumask_set_cpu(3, &mask);
        its_send_invall(col3);
        wait_for_interrupts(&mask);
-- 
2.20.1