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authorIsaku Yamahata <yamahata@valinux.co.jp>2009-03-04 21:05:33 +0900
committerTony Luck <tony.luck@intel.com>2009-03-26 10:38:06 -0700
commitac93925acbf841d70a95ab576b76b15a34d194eb (patch)
treed8e7d69ba09e3e9bec3096d2240c64ab5781cc7b /arch/ia64/include/asm/xen
parente8c3b42057be44cff9dd225bd9930956c5f34776 (diff)
ia64/xen: short-circuit tests for dom0
This patch is ia64 counter part of clean up of the xen predicates. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/include/asm/xen')
-rw-r--r--arch/ia64/include/asm/xen/hypervisor.h39
1 files changed, 18 insertions, 21 deletions
diff --git a/arch/ia64/include/asm/xen/hypervisor.h b/arch/ia64/include/asm/xen/hypervisor.h
index 7a804e80fc6..e425227a418 100644
--- a/arch/ia64/include/asm/xen/hypervisor.h
+++ b/arch/ia64/include/asm/xen/hypervisor.h
@@ -33,9 +33,6 @@
#ifndef _ASM_IA64_XEN_HYPERVISOR_H
#define _ASM_IA64_XEN_HYPERVISOR_H
-#ifdef CONFIG_XEN
-
-#include <linux/init.h>
#include <xen/interface/xen.h>
#include <xen/interface/version.h> /* to compile feature.c */
#include <xen/features.h> /* to comiple xen-netfront.c */
@@ -43,22 +40,32 @@
/* xen_domain_type is set before executing any C code by early_xen_setup */
enum xen_domain_type {
- XEN_NATIVE,
- XEN_PV_DOMAIN,
- XEN_HVM_DOMAIN,
+ XEN_NATIVE, /* running on bare hardware */
+ XEN_PV_DOMAIN, /* running in a PV domain */
+ XEN_HVM_DOMAIN, /* running in a Xen hvm domain*/
};
+#ifdef CONFIG_XEN
extern enum xen_domain_type xen_domain_type;
+#else
+#define xen_domain_type XEN_NATIVE
+#endif
#define xen_domain() (xen_domain_type != XEN_NATIVE)
-#define xen_pv_domain() (xen_domain_type == XEN_PV_DOMAIN)
-#define xen_initial_domain() (xen_pv_domain() && \
+#define xen_pv_domain() (xen_domain() && \
+ xen_domain_type == XEN_PV_DOMAIN)
+#define xen_hvm_domain() (xen_domain() && \
+ xen_domain_type == XEN_HVM_DOMAIN)
+
+#ifdef CONFIG_XEN_DOM0
+#define xen_initial_domain() (xen_pv_domain() && \
(xen_start_info->flags & SIF_INITDOMAIN))
-#define xen_hvm_domain() (xen_domain_type == XEN_HVM_DOMAIN)
+#else
+#define xen_initial_domain() (0)
+#endif
-/* deprecated. remove this */
-#define is_running_on_xen() (xen_domain_type == XEN_PV_DOMAIN)
+#ifdef CONFIG_XEN
extern struct shared_info *HYPERVISOR_shared_info;
extern struct start_info *xen_start_info;
@@ -74,16 +81,6 @@ void force_evtchn_callback(void);
/* For setup_arch() in arch/ia64/kernel/setup.c */
void xen_ia64_enable_opt_feature(void);
-
-#else /* CONFIG_XEN */
-
-#define xen_domain() (0)
-#define xen_pv_domain() (0)
-#define xen_initial_domain() (0)
-#define xen_hvm_domain() (0)
-#define is_running_on_xen() (0) /* deprecated. remove this */
#endif
-#define is_initial_xendomain() (0) /* deprecated. remove this */
-
#endif /* _ASM_IA64_XEN_HYPERVISOR_H */