Add injection tests that use writing into the ISPENDR register (to mark
IRQs as pending). This is typically used by migration code.
Signed-off-by: Ricardo Koller <ricarkol@xxxxxxxxxx>
---
.../testing/selftests/kvm/aarch64/vgic_irq.c | 22 +++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/tools/testing/selftests/kvm/aarch64/vgic_irq.c b/tools/testing/selftests/kvm/aarch64/vgic_irq.c
index 121113f24ed3..ab39f0bf18e7 100644
--- a/tools/testing/selftests/kvm/aarch64/vgic_irq.c
+++ b/tools/testing/selftests/kvm/aarch64/vgic_irq.c
@@ -65,6 +65,7 @@ typedef enum {
KVM_SET_IRQ_LINE_HIGH,
KVM_SET_LEVEL_INFO_HIGH,
KVM_INJECT_IRQFD,
+ KVM_WRITE_ISPENDR,
} kvm_inject_cmd;
struct kvm_inject_args {
@@ -105,6 +106,7 @@ static struct kvm_inject_desc inject_edge_fns[] = {
/* sgi ppi spi */
{ KVM_INJECT_EDGE_IRQ_LINE, false, false, true },
{ KVM_INJECT_IRQFD, false, false, true },
+ { KVM_WRITE_ISPENDR, true, false, true },
{ 0, },
};
@@ -113,6 +115,7 @@ static struct kvm_inject_desc inject_level_fns[] = {
{ KVM_SET_IRQ_LINE_HIGH, false, true, true },
{ KVM_SET_LEVEL_INFO_HIGH, false, true, true },
{ KVM_INJECT_IRQFD, false, false, true },
+ { KVM_WRITE_ISPENDR, false, true, true },
{ 0, },
};
@@ -495,6 +498,20 @@ static void kvm_set_gsi_routing_irqchip_check(struct kvm_vm *vm,
}
}
+static void kvm_irq_write_ispendr_check(int gic_fd, uint32_t intid,
+ uint32_t vcpu, bool expect_failure)
+{
+ /*
+ * Ignore this when expecting failure as invalid intids will lead to
+ * either trying to inject SGIs when we configured the test to be
+ * level_sensitive (or the reverse), or inject large intids which
+ * will lead to writing above the ISPENDR register space (and we
+ * don't want to do that either).
+ */
+ if (!expect_failure)
+ kvm_irq_write_ispendr(gic_fd, intid, vcpu);
+}
+
static void kvm_routing_and_irqfd_check(struct kvm_vm *vm,
uint32_t intid, uint32_t num, uint32_t kvm_max_routes,
bool expect_failure)
@@ -597,6 +614,11 @@ static void run_guest_cmd(struct kvm_vm *vm, int gic_fd,
test_args->kvm_max_routes,
expect_failure);
break;
+ case KVM_WRITE_ISPENDR:
+ for (i = intid; i < intid + num; i++)
+ kvm_irq_write_ispendr_check(gic_fd, i,
+ VCPU_ID, expect_failure);
+ break;
default:
break;
}
--
2.34.0.rc0.344.g81b53c2807-goog
