From: Keir Fraser <keir.fraser@citrix.com>
Date: Mon, 7 Jun 2010 05:57:11 +0000 (+0100)
Subject: ia64, xencomm: support XEN_SYSCTL_cpupool_op
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=a95b991bd0a298f612944c6970cc7cdefd792e83;p=legacy%2Flinux-2.6.18-xen.git

ia64, xencomm: support XEN_SYSCTL_cpupool_op

Signed-off-by: KUWAMURA Shin'ya <kuwa@jp.fujitsu.com>
---

diff --git a/arch/ia64/xen/xcom_privcmd.c b/arch/ia64/xen/xcom_privcmd.c
index f9371a0d..90fdfa91 100644
--- a/arch/ia64/xen/xcom_privcmd.c
+++ b/arch/ia64/xen/xcom_privcmd.c
@@ -229,6 +229,18 @@ xencomm_privcmd_sysctl(privcmd_hypercall_t *hypercall)
 		return ret;
 	}
 
+	case XEN_SYSCTL_cpupool_op:
+		desc = xencomm_map(
+			xen_guest_handle(kern_op.u.cpupool_op.cpumap.bitmap),
+			ROUND_DIV(kern_op.u.cpupool_op.cpumap.nr_cpus, 8));
+		if (xen_guest_handle(kern_op.u.cpupool_op.cpumap.bitmap) !=
+		    NULL && kern_op.u.cpupool_op.cpumap.nr_cpus > 0 &&
+		    desc == NULL)
+			return -ENOMEM;
+		set_xen_guest_handle(kern_op.u.cpupool_op.cpumap.bitmap,
+		                     (void *)desc);
+		break;
+
 	ret = xencomm_arch_hypercall_sysctl(op_desc);
 
 	/* FIXME: should we restore the handles?  */