test(interrupts): secure interrupt target in WAITING state
This patch adds a new test to exercise secure interrupt targeted
for an SP in WAITING state. The test is made part of a new test suite
named secure_interrupts.
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
Change-Id: I08cd13558e7ee3c598948815463901100ca291c9
diff --git a/test/vmapi/ffa_secure_partitions/secure_interrupts.c b/test/vmapi/ffa_secure_partitions/secure_interrupts.c
index 92776d3..53049ca 100644
--- a/test/vmapi/ffa_secure_partitions/secure_interrupts.c
+++ b/test/vmapi/ffa_secure_partitions/secure_interrupts.c
@@ -6,11 +6,39 @@
* https://opensource.org/licenses/BSD-3-Clause.
*/
+#include "hf/arch/barriers.h"
+
#include "ffa_secure_partitions.h"
+#include "msr.h"
#include "partition_services.h"
#include "sp_helpers.h"
#define SP_SLEEP_TIME 400U
+#define NS_SLEEP_TIME 200U
+
+static inline uint64_t syscounter_read(void)
+{
+ isb();
+ return read_msr(cntvct_el0);
+}
+
+static void waitus(uint64_t us)
+{
+ uint64_t start_count_val = syscounter_read();
+ uint64_t wait_cycles = (us * read_msr(cntfrq_el0)) / 1000000;
+
+ while ((syscounter_read() - start_count_val) < wait_cycles) {
+ /* Busy wait... */;
+ }
+}
+
+static void waitms(uint64_t ms)
+{
+ while (ms > 0) {
+ waitus(1000);
+ ms--;
+ }
+}
static void configure_trusted_wdog_interrupt(ffa_vm_id_t source,
ffa_vm_id_t dest, bool enable)
@@ -104,3 +132,33 @@
check_and_disable_trusted_wdog_timer(own_id, receiver_id);
}
+
+/*
+ * Test secure interrupt handling while the Secure Partition is in WAITING
+ * state.
+ */
+TEST(secure_interrupts, sp_waiting)
+{
+ ffa_vm_id_t own_id = hf_vm_get_id();
+ struct ffa_partition_info *service2_info = service2();
+ const ffa_vm_id_t receiver_id = service2_info->vm_id;
+ uint64_t time1;
+ volatile uint64_t time_lapsed;
+ uint64_t timer_freq = read_msr(cntfrq_el0);
+
+ enable_trigger_trusted_wdog_timer(own_id, receiver_id, 100);
+ time1 = syscounter_read();
+
+ /*
+ * Sleep for NS_SLEEP_TIME ms. This ensures secure wdog timer triggers
+ * during this time.
+ */
+ waitms(NS_SLEEP_TIME);
+
+ /* Lapsed time should be at least equal to sleep time. */
+ time_lapsed = ((syscounter_read() - time1) * 1000) / timer_freq;
+
+ EXPECT_GE(time_lapsed, NS_SLEEP_TIME);
+
+ check_and_disable_trusted_wdog_timer(own_id, receiver_id);
+}