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 <[email protected]> --- 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 [email protected] https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
