fix(ci): enable KVM acceleration for GitHub Actions runner

Author: YanLien

.github/workflows/qemu-x86_64.toml

@@ -10,13 +10,12 @@ args = [
   "-drive",
   "id=disk0,if=none,format=raw,file=${workspaceFolder}/tmp/rootfs.img",
   "-nographic",
-#   "-accel",
-#   "kvm",
+  "-accel",
+  "kvm",
   "-cpu",
-  "max"
-#   "host",
+  "host",
 ]
-fail_regex = []
+fail_regex = ["System will reboot, press any key to continue ..."]
 success_regex = ["usertests passed!"]
 to_bin = false
 uefi = false

modules/axconfig/src/lib.rs

@@ -47,7 +47,7 @@ pub mod devices {
 #[doc = ""]
 pub mod plat {
     #[doc = " Number of CPUs."]
-    pub const CPU_NUM: usize = 1;
+    pub const CPU_NUM: usize = 16;
     #[doc = " Platform family (deprecated)."]
     pub const FAMILY: &str = "";
     #[doc = " Kernel address space base."]