x86_64: move ACPI driver to kext

arch/x86_64/init.c

@@ -15,7 +15,10 @@
 #include <socks/libc/stdio.h>
 #include <arch/vgacon.h>
 #include <arch/serial.h>
+
+#ifdef KEXT_NET_DOORSTUCK_SOCKS_ACPI
 #include <arch/acpi.h>
+#endif
 
 #define PTR32(x) ((void *)((uintptr_t)(x)))
 
@@ -85,6 +88,12 @@ static void init_bootfb(multiboot_info_t *mb)
 	__bootfb_fixedinfo.fb_baseptr = mb->framebuffer_addr;
 }
 
+static void use_uniprocessor_topology(void)
+{
+	cpu_set_available(0);
+	cpu_set_online(0);
+}
+
 int ml_init(uintptr_t arg)
 {
 	multiboot_info_t *mb = (multiboot_info_t *)arg;
@@ -105,7 +114,12 @@ int ml_init(uintptr_t arg)
 
 	pmap_bootstrap();
 
+#ifdef KEXT_NET_DOORSTUCK_SOCKS_ACPI
 	acpi_scan_cpu_topology();
+#else
+	use_uniprocessor_topology();
+#endif
+
 	init_per_cpu_areas();
 
 	struct cpu_data *this_cpu = get_this_cpu();
@@ -129,7 +143,10 @@ int ml_init(uintptr_t arg)
 	sched_init();
 
 	device_init();
+
+#ifdef KEXT_NET_DOORSTUCK_SOCKS_ACPI
 	acpi_init();
+#endif
 
 	ml_int_enable();