test: arch timer in nwd is honored across world switch
This patch introduces a test to ensure that the functionality of arch
(EL1 physical) timer configured by NWd endpoint, such as an hypervisor,
is not corrupted by SPMC when an SP also configures the arch timer for
its own use.
Also, necessary helpers and utilities to create the test scenario have
been added.
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: I1cfd1e1117412b2b23a57af30064c41dc2e66e0b
diff --git a/spm/cactus/cactus_main.c b/spm/cactus/cactus_main.c
index b608d7b..40f7618 100644
--- a/spm/cactus/cactus_main.c
+++ b/spm/cactus/cactus_main.c
@@ -288,6 +288,12 @@
enable_irq();
enable_fiq();
+ /* Disable the arch timer at boot. */
+ write_cntp_ctl_el0(0);
+
+ /* Enable the arch timer virtual interrupt. */
+ spm_interrupt_enable(TIMER_VIRTUAL_INTID, true, 0);
+
if (primary_cold_boot == false) {
goto msg_loop;
}