[libvirt PATCH 2/3] cpu_x86: Prepare virCPUx86UpdateLive for easier extension
Adding more checks into the existing if statements would turn them into
an unreadable mess.
Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com>
---
src/cpu/cpu_x86.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/src/cpu/cpu_x86.c b/src/cpu/cpu_x86.c
index dca9ed2979..5a6b7bb1d8 100644
--- a/src/cpu/cpu_x86.c
+++ b/src/cpu/cpu_x86.c
@@ -3036,9 +3036,15 @@ virCPUx86UpdateLive(virCPUDefPtr cpu,
for (i = 0; i < map->nfeatures; i++) {
virCPUx86FeaturePtr feature = map->features[i];
+ virCPUFeaturePolicy expected = VIR_CPU_FEATURE_LAST;
- if (x86DataIsSubset(&enabled, &feature->data) &&
- !x86DataIsSubset(&model->data, &feature->data)) {
+ if (x86DataIsSubset(&model->data, &feature->data))
+ expected = VIR_CPU_FEATURE_REQUIRE;
+ else
+ expected = VIR_CPU_FEATURE_DISABLE;
+
+ if (expected == VIR_CPU_FEATURE_DISABLE &&
+ x86DataIsSubset(&enabled, &feature->data)) {
VIR_DEBUG("Feature '%s' enabled by the hypervisor",
feature->name);
if (cpu->check == VIR_CPU_CHECK_FULL)
virBufferAsprintf(&bufAdded, "%s,", feature->name);
@@ -3048,7 +3054,7 @@ virCPUx86UpdateLive(virCPUDefPtr cpu,
}
if (x86DataIsSubset(&disabled, &feature->data) ||
- (x86DataIsSubset(&model->data, &feature->data) &&
+ (expected == VIR_CPU_FEATURE_REQUIRE &&
!x86DataIsSubset(&enabled, &feature->data))) {
VIR_DEBUG("Feature '%s' disabled by the hypervisor",
feature->name);
if (cpu->check == VIR_CPU_CHECK_FULL)
--
2.25.1