diff options
author | Isaku Yamahata <yamahata@valinux.co.jp> | 2008-04-02 13:53:54 -0400 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-04-24 17:57:32 -0400 |
commit | af711cda4f94b5fddcdc5eb4134387ae026e3171 (patch) | |
tree | 291b77deb0ad3f6fe83e8f77d8b0cfd553d07924 /drivers | |
parent | 2724426924a471dc9fd8989dae56ab4d79519e34 (diff) |
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 <yamahata@valinux.co.jp>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/xen/Makefile | 2 | ||||
-rw-r--r-- | drivers/xen/features.c | 29 |
2 files changed, 30 insertions, 1 deletions
diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile index 56592f0d6cef..609fdda90a34 100644 --- a/drivers/xen/Makefile +++ b/drivers/xen/Makefile | |||
@@ -1,2 +1,2 @@ | |||
1 | obj-y += grant-table.o | 1 | obj-y += grant-table.o features.o |
2 | obj-y += xenbus/ | 2 | obj-y += xenbus/ |
diff --git a/drivers/xen/features.c b/drivers/xen/features.c new file mode 100644 index 000000000000..0707714e40d6 --- /dev/null +++ b/drivers/xen/features.c | |||
@@ -0,0 +1,29 @@ | |||
1 | /****************************************************************************** | ||
2 | * features.c | ||
3 | * | ||
4 | * Xen feature flags. | ||
5 | * | ||
6 | * Copyright (c) 2006, Ian Campbell, XenSource Inc. | ||
7 | */ | ||
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> | ||
13 | |||
14 | u8 xen_features[XENFEAT_NR_SUBMAPS * 32] __read_mostly; | ||
15 | EXPORT_SYMBOL_GPL(xen_features); | ||
16 | |||
17 | void xen_setup_features(void) | ||
18 | { | ||
19 | struct xen_feature_info fi; | ||
20 | int i, j; | ||
21 | |||
22 | for (i = 0; i < XENFEAT_NR_SUBMAPS; i++) { | ||
23 | fi.submap_idx = i; | ||
24 | if (HYPERVISOR_xen_version(XENVER_get_features, &fi) < 0) | ||
25 | break; | ||
26 | for (j = 0; j < 32; j++) | ||
27 | xen_features[i * 32 + j] = !!(fi.submap & 1<<j); | ||
28 | } | ||
29 | } | ||