On 8/12/25 03:06, Philippe Mathieu-Daudé wrote:
+bool host_cpu_feature_supported(enum arm_features feat, bool can_emulate)
+{
+#if defined(CONFIG_KVM) || defined(CONFIG_HVF)
+ static enum { F_UNKN, F_SUPP, F_UNSUPP } supported[64] = { };
+
+ assert(feat < ARRAY_SIZE(supported));
+ if (supported[feat] == F_UNKN) {
+ supported[feat] = arm_hw_accel_cpu_feature_supported(feat,
can_emulate);
+ }
+ return supported[feat] == F_SUPP;
+#elif defined(CONFIG_TCG)
+ return can_emulate;
+#else
+#error
+#endif
+}
How much startup time is saved by this cache?
This feels like premature optimization.
r~
