Shared Peripheral Interrupts (SPI) can target a specific CPU. Test this
feature by routing the test SPI to each of the vCPUs, then triggering it
and confirm its reception on that requested core.
Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx>
---
arm/gic.c | 31 ++++++++++++++++++++++++++++++-
1 file changed, 30 insertions(+), 1 deletion(-)
diff --git a/arm/gic.c b/arm/gic.c
index 63aa9f4..304b7b9 100644
--- a/arm/gic.c
+++ b/arm/gic.c
@@ -620,16 +620,45 @@ static void spi_test_single(void)
check_acked("now enabled SPI fires", &cpumask);
}
+static void spi_test_smp(void)
+{
+ int cpu;
+ int cores = 1;
+
+ wait_on_ready();
+ for_each_present_cpu(cpu) {
+ if (cpu == smp_processor_id())
+ continue;
+ spi_configure_irq(SPI_IRQ, cpu);
+ if (trigger_and_check_spi(NULL, IRQ_STAT_IRQ, cpu))
+ cores++;
+ else
+ report_info("SPI delivery failed on core %d", cpu);
+ }
+ report("SPI delievered on all cores", cores == nr_cpus);
+}
+
static void spi_send(void)
{
irqs_enable();
spi_test_single();
+ if (nr_cpus > 1)
+ spi_test_smp();
+
check_spurious();
exit(report_summary());
}
+static void spi_test(void *data __unused)
+{
+ if (smp_processor_id() == 0)
+ spi_send();
+ else
+ irq_recv();
+}
+
int main(int argc, char **argv)
{
if (!gic_init()) {
@@ -663,7 +692,7 @@ int main(int argc, char **argv)
report_prefix_pop();
} else if (strcmp(argv[1], "irq") == 0) {
report_prefix_push(argv[1]);
- spi_send();
+ on_cpus(spi_test, NULL);
report_prefix_pop();
} else {
report_abort("Unknown subtest '%s'", argv[1]);
--
2.17.1
_______________________________________________
kvmarm mailing list
kvmarm@xxxxxxxxxxxxxxxxxxxxx
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
