[Qemu-arm] [PATCH] ARM: GIC: error out early when creating VGICv2 failed

[Shannon Zhao]

Currently if creating a gicv2 VM on the platform without
VGICv2 support, it failed in kvm_arm_pmu_set_irq while
trying to set the interrupt number for PMU with below
error message.
KVM_SET_DEVICE_ATTR failed: Invalid argument

This error log is a little confused. Also it should error
out in kvm_arm_gic_realize early.

Signed-off-by: Shannon Zhao <address@hidden>
---
 hw/intc/arm_gic_kvm.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/hw/intc/arm_gic_kvm.c b/hw/intc/arm_gic_kvm.c
index a611e8e..b4f2133 100644
--- a/hw/intc/arm_gic_kvm.c
+++ b/hw/intc/arm_gic_kvm.c
@@ -554,8 +554,9 @@ static void kvm_arm_gic_realize(DeviceState *dev, Error 
**errp)
                               KVM_DEV_ARM_VGIC_CTRL_INIT, NULL, true,
                               &error_abort);
         }
-    } else if (ret != -ENODEV && ret != -ENOTSUP) {
-        error_setg_errno(errp, -ret, "error creating in-kernel VGIC");
+    } else if (ret != -ENOTSUP) {
+        error_setg_errno(errp, -ret, "error creating in-kernel VGIC, maybe "
+                                     "vGICv2 not support on this platform");
         return;
     }
 
-- 
1.8.3.1