From 115488f1ea6f28cd860c97709b86255575be1131 Mon Sep 17 00:00:00 2001
From: "awilliam@xenbuild2.aw" <awilliam@xenbuild2.aw>
Date: Thu, 8 Mar 2007 09:50:25 -0700
Subject: [PATCH] [IA64] Add HYPERVISOR_vcpu_op

For support of steal time accounting, only supports
VCPUOP_register_runstate_memory_area right now.

Signed-off-by: Atsushi SAKAI <sakaia@jp.fujitsu.com>
---
 .../arch/ia64/xen/xcom_hcall.c                 | 18 ++++++++++++++++++
 .../include/asm-ia64/hypercall.h               |  7 +++++++
 .../include/asm-ia64/xen/xcom_hcall.h          |  2 ++
 3 files changed, 27 insertions(+)

diff --git a/linux-2.6-xen-sparse/arch/ia64/xen/xcom_hcall.c b/linux-2.6-xen-sparse/arch/ia64/xen/xcom_hcall.c
index 49f9ea6708..135a9e1533 100644
--- a/linux-2.6-xen-sparse/arch/ia64/xen/xcom_hcall.c
+++ b/linux-2.6-xen-sparse/arch/ia64/xen/xcom_hcall.c
@@ -33,6 +33,7 @@
 #include <xen/interface/acm_ops.h>
 #include <xen/interface/hvm/params.h>
 #include <xen/interface/xenoprof.h>
+#include <xen/interface/vcpu.h>
 #include <asm/hypercall.h>
 #include <asm/page.h>
 #include <asm/uaccess.h>
@@ -363,3 +364,20 @@ xencomm_hypercall_perfmon_op(unsigned long cmd, void* arg, unsigned long count)
 	                                         xencomm_create_inline(arg),
 	                                         count);
 }
+
+long
+xencomm_hypercall_vcpu_op(int cmd, int cpu, void *arg)
+{
+	switch (cmd) {
+	case VCPUOP_register_runstate_memory_area:
+		xencommize_memory_reservation((xen_memory_reservation_t *)arg);
+		break;
+
+	default:
+		printk("%s: unknown vcpu op %d\n", __func__, cmd);
+		return -ENOSYS;
+	}
+
+	return xencomm_arch_hypercall_vcpu_op(cmd, cpu,
+					      xencomm_create_inline(arg));
+}
diff --git a/linux-2.6-xen-sparse/include/asm-ia64/hypercall.h b/linux-2.6-xen-sparse/include/asm-ia64/hypercall.h
index 9ae66fe781..62073e6950 100644
--- a/linux-2.6-xen-sparse/include/asm-ia64/hypercall.h
+++ b/linux-2.6-xen-sparse/include/asm-ia64/hypercall.h
@@ -205,6 +205,12 @@ xencomm_arch_hypercall_hvm_op(int cmd, void *arg)
 	return _hypercall2(unsigned long, hvm_op, cmd, arg);
 }
 
+static inline long
+xencomm_arch_hypercall_vcpu_op(int cmd, int cpu, void *arg)
+{
+	return _hypercall3(long, vcpu_op, cmd, cpu, arg);
+}
+
 static inline int
 HYPERVISOR_physdev_op(int cmd, void *arg)
 {
@@ -405,5 +411,6 @@ xencomm_arch_hypercall_perfmon_op(unsigned long cmd,
 #endif
 
 #define HYPERVISOR_suspend xencomm_hypercall_suspend
+#define HYPERVISOR_vcpu_op xencomm_hypercall_vcpu_op
 
 #endif /* __HYPERCALL_H__ */
diff --git a/linux-2.6-xen-sparse/include/asm-ia64/xen/xcom_hcall.h b/linux-2.6-xen-sparse/include/asm-ia64/xen/xcom_hcall.h
index 79e790d75b..913f2761ee 100644
--- a/linux-2.6-xen-sparse/include/asm-ia64/xen/xcom_hcall.h
+++ b/linux-2.6-xen-sparse/include/asm-ia64/xen/xcom_hcall.h
@@ -51,6 +51,8 @@ extern int xencomm_hypercall_xenoprof_op(int op, void *arg);
 extern int xencomm_hypercall_perfmon_op(unsigned long cmd, void* arg,
                                         unsigned long count);
 
+extern long xencomm_hypercall_vcpu_op(int cmd, int cpu, void *arg);
+
 /* Using mini xencomm.  */
 extern int xencomm_mini_hypercall_console_io(int cmd, int count, char *str);
 
-- 
2.30.2