[prev in list] [next in list] [prev in thread] [next in thread] 

List:       xen-ia64-devel
Subject:    [Xen-ia64-devel] [PATCH] xen: support domctl [gs]et_address_size
From:       Isaku Yamahata <yamahata () valinux ! co ! jp>
Date:       2009-01-15 3:46:49
Message-ID: 20090115034649.GJ1565%yamahata () valinux ! co ! jp
[Download RAW message or body]

This patch is necessary for xm dump-core patch.

[IA64] support XEN_DOMCTL_[gs]et_address_size

support XEN_DOMCTL_[gs]et_address_size to support
the updated xm dump-core.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>

diff --git a/xen/arch/ia64/xen/dom0_ops.c b/xen/arch/ia64/xen/dom0_ops.c
--- a/xen/arch/ia64/xen/dom0_ops.c
+++ b/xen/arch/ia64/xen/dom0_ops.c
@@ -649,6 +649,39 @@ long arch_do_domctl(xen_domctl_t *op, XE
     }
     break;
 
+    case XEN_DOMCTL_set_address_size:
+    {
+        struct domain *d = rcu_lock_domain_by_id(op->domain);
+
+        ret = -ESRCH;
+        if (d == NULL)
+            break;
+
+        ret = -EINVAL;
+        if (op->u.address_size.size == BITS_PER_LONG)
+            ret = 0;
+
+        rcu_unlock_domain(d);
+    }
+    break;
+        
+    case XEN_DOMCTL_get_address_size:
+    {
+        struct domain *d = rcu_lock_domain_by_id(op->domain);
+
+        ret = -ESRCH;
+        if (d  == NULL)
+            break;
+
+        ret = 0;
+        op->u.address_size.size = BITS_PER_LONG;
+        rcu_unlock_domain(d);
+
+        if (copy_to_guest(u_domctl, op, 1))
+            ret = -EFAULT;
+    }
+    break;
+    
     default:
         printk("arch_do_domctl: unrecognized domctl: %d!!!\n",op->cmd);
         ret = -ENOSYS;


-- 
yamahata

_______________________________________________
Xen-ia64-devel mailing list
Xen-ia64-devel@lists.xensource.com
http://lists.xensource.com/xen-ia64-devel
[prev in list] [next in list] [prev in thread] [next in thread]