summaryrefslogtreecommitdiffstats
path: root/kernel/arch/powerpc/include/asm/kvm_para.h
diff options
context:
space:
mode:
authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/powerpc/include/asm/kvm_para.h
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/powerpc/include/asm/kvm_para.h')
-rw-r--r--kernel/arch/powerpc/include/asm/kvm_para.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/kernel/arch/powerpc/include/asm/kvm_para.h b/kernel/arch/powerpc/include/asm/kvm_para.h
new file mode 100644
index 000000000..336a91acb
--- /dev/null
+++ b/kernel/arch/powerpc/include/asm/kvm_para.h
@@ -0,0 +1,69 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Copyright IBM Corp. 2008
+ *
+ * Authors: Hollis Blanchard <hollisb@us.ibm.com>
+ */
+#ifndef __POWERPC_KVM_PARA_H__
+#define __POWERPC_KVM_PARA_H__
+
+#include <uapi/asm/kvm_para.h>
+
+#ifdef CONFIG_KVM_GUEST
+
+#include <linux/of.h>
+
+static inline int kvm_para_available(void)
+{
+ struct device_node *hyper_node;
+
+ hyper_node = of_find_node_by_path("/hypervisor");
+ if (!hyper_node)
+ return 0;
+
+ if (!of_device_is_compatible(hyper_node, "linux,kvm"))
+ return 0;
+
+ return 1;
+}
+
+#else
+
+static inline int kvm_para_available(void)
+{
+ return 0;
+}
+
+#endif
+
+static inline unsigned int kvm_arch_para_features(void)
+{
+ unsigned long r;
+
+ if (!kvm_para_available())
+ return 0;
+
+ if(epapr_hypercall0_1(KVM_HCALL_TOKEN(KVM_HC_FEATURES), &r))
+ return 0;
+
+ return r;
+}
+
+static inline bool kvm_check_and_clear_guest_paused(void)
+{
+ return false;
+}
+
+#endif /* __POWERPC_KVM_PARA_H__ */