[PATCH v3 12/14] hw/arm: Prefer arm_feature(GENERIC_TMR) over 'kvm-no-adjvtime' property

[Philippe Mathieu-Daudé]

First, the "kvm-no-adjvtime" and "kvm-steal-time" are only
available when KVM is available, so guard this block within
a 'kvm_enabled()' check. Since the "kvm-steal-time" property
is always available under KVM, directly set it.

Then, the "kvm-no-adjvtime" property is added to ARMCPU when
the ARM_FEATURE_GENERIC_TIMER feature is available. Rather than
checking whether the QOM property is present, directly check
the feature.

Finally, since we are sure the properties are available, we can
use &error_abort instead of NULL error. Replace:

  object_property_set_bool(..., PROPERTY, ..., &error_abort);

by:

  qdev_prop_set_bit(..., PROPERTY, ...);

which is a one-to-one replacement.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/arm/virt.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 6d1cb24a6e..49ed5309ff 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -2150,14 +2150,13 @@ static void machvirt_init(MachineState *machine)
             object_property_set_bool(cpuobj, "has_el2", false, NULL);
         }
 
-        if (vmc->kvm_no_adjvtime &&
-            object_property_find(cpuobj, "kvm-no-adjvtime")) {
-            object_property_set_bool(cpuobj, "kvm-no-adjvtime", true, NULL);
-        }
-
-        if (vmc->no_kvm_steal_time &&
-            object_property_find(cpuobj, "kvm-steal-time")) {
-            object_property_set_bool(cpuobj, "kvm-steal-time", false, NULL);
+        if (kvm_enabled()) {
+            if (arm_feature(cpu_env(cs), ARM_FEATURE_GENERIC_TIMER)) {
+                qdev_prop_set_bit(DEVICE(cs), "kvm-no-adjvtime",
+                                  vmc->kvm_no_adjvtime);
+            }
+            qdev_prop_set_bit(DEVICE(cs), "kvm-steal-time",
+                              !vmc->no_kvm_steal_time);
         }
 
         if (arm_feature(cpu_env(cs), ARM_FEATURE_PMU) && vmc->no_pmu) {
-- 
2.41.0