1 /******************************************************************************
6 * Copyright (c) 2006, Ian Campbell, XenSource Inc.
8 #include <linux/types.h>
9 #include <linux/cache.h>
10 #include <linux/module.h>
11 #include <asm/hypervisor.h>
12 #include <xen/features.h>
14 u8 xen_features[XENFEAT_NR_SUBMAPS * 32] __read_mostly;
15 /* Not a GPL symbol: used in ubiquitous macros, so too restrictive. */
16 EXPORT_SYMBOL(xen_features);
18 void setup_xen_features(void)
20 xen_feature_info_t fi;
23 for (i = 0; i < XENFEAT_NR_SUBMAPS; i++) {
25 if (HYPERVISOR_xen_version(XENVER_get_features, &fi) < 0)
28 xen_features[i*32+j] = !!(fi.submap & 1<<j);