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/xen/hypervisor.h>
12 #include <xen/features.h>
14 u8 xen_features[XENFEAT_NR_SUBMAPS * 32] __read_mostly;
15 EXPORT_SYMBOL_GPL(xen_features);
17 void xen_setup_features(void)
19 struct xen_feature_info fi;
22 for (i = 0; i < XENFEAT_NR_SUBMAPS; i++) {
24 if (HYPERVISOR_xen_version(XENVER_get_features, &fi) < 0)
26 for (j = 0; j < 32; j++)
27 xen_features[i * 32 + j] = !!(fi.submap & 1<<j);