From af711cda4f94b5fddcdc5eb4134387ae026e3171 Mon Sep 17 00:00:00 2001 From: Isaku Yamahata Date: Wed, 2 Apr 2008 10:53:54 -0700 Subject: xen: move features.c from arch/x86/xen/features.c to drivers/xen ia64/xen also uses it too. Move it into common place so that ia64/xen can share the code. Signed-off-by: Isaku Yamahata Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- drivers/xen/features.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 drivers/xen/features.c (limited to 'drivers/xen/features.c') diff --git a/drivers/xen/features.c b/drivers/xen/features.c new file mode 100644 index 00000000000..0707714e40d --- /dev/null +++ b/drivers/xen/features.c @@ -0,0 +1,29 @@ +/****************************************************************************** + * features.c + * + * Xen feature flags. + * + * Copyright (c) 2006, Ian Campbell, XenSource Inc. + */ +#include +#include +#include +#include +#include + +u8 xen_features[XENFEAT_NR_SUBMAPS * 32] __read_mostly; +EXPORT_SYMBOL_GPL(xen_features); + +void xen_setup_features(void) +{ + struct xen_feature_info fi; + int i, j; + + for (i = 0; i < XENFEAT_NR_SUBMAPS; i++) { + fi.submap_idx = i; + if (HYPERVISOR_xen_version(XENVER_get_features, &fi) < 0) + break; + for (j = 0; j < 32; j++) + xen_features[i * 32 + j] = !!(fi.submap & 1<