From 57a42c756398e8543cdfb5f911e9e1a9a54145ec Mon Sep 17 00:00:00 2001
From: royger <royger@FreeBSD.org>
Date: Tue, 11 Mar 2014 10:07:55 +0000
Subject: xen: add macro to detect if running as Dom0

Approved by: gibbs
Sponsored by: Citrix Systems R&D

xen/xen-os.h:
 - Add macro to detect if running as Dom0.
---
 sys/xen/xen-os.h | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'sys/xen')

diff --git a/sys/xen/xen-os.h b/sys/xen/xen-os.h
index c7474d8..62b5bf6 100644
--- a/sys/xen/xen-os.h
+++ b/sys/xen/xen-os.h
@@ -82,6 +82,13 @@ xen_hvm_domain(void)
 	return (xen_domain_type == XEN_HVM_DOMAIN);
 }
 
+static inline bool
+xen_initial_domain(void)
+{
+	return (xen_domain() && HYPERVISOR_start_info != NULL &&
+	    (HYPERVISOR_start_info->flags & SIF_INITDOMAIN) != 0);
+}
+
 #ifndef xen_mb
 #define xen_mb() mb()
 #endif
-- 
cgit v1.1