[Xen-devel] [PATCH] ia64, xencomm: support XEN_SYSCTL_topologyinfo and XEN_SYSCTL_numainfo

["KUWAMURA Shin'ya" <kuwa@xxxxxxxxxxxxxx>]

Hi,

This patch enables ia64 to support XEN_SYSCTL_topologyinfo and
XEN_SYSCTL_numainfo.

Signed-off-by: KUWAMURA Shin'ya <kuwa@xxxxxxxxxxxxxx>
-- 
  KUWAMURA Shin'ya

# HG changeset patch
# User KUWAMURA Shin'ya <kuwa@xxxxxxxxxxxxxx>
# Date 1274752784 -32400
# Node ID df836bdec13b4faf104f857de9502a05c87e02f1
# Parent  948c933f8839f77f436f3df5548ed2101b887a55
ia64, xencomm: support XEN_SYSCTL_topologyinfo and XEN_SYSCTL_numainfo

This patch enables ia64 to support XEN_SYSCTL_topologyinfo and
XEN_SYSCTL_numainfo.

Signed-off-by: KUWAMURA Shin'ya <kuwa@xxxxxxxxxxxxxx>

diff -r 948c933f8839 -r df836bdec13b arch/ia64/xen/xcom_privcmd.c
--- a/arch/ia64/xen/xcom_privcmd.c      Thu May 06 15:52:48 2010 +0100
+++ b/arch/ia64/xen/xcom_privcmd.c      Tue May 25 10:59:44 2010 +0900
@@ -87,6 +87,7 @@ xencomm_privcmd_sysctl(privcmd_hypercall
        struct xencomm_handle *op_desc;
        struct xencomm_handle *desc = NULL;
        struct xencomm_handle *desc1 = NULL;
+       struct xencomm_handle *desc2 = NULL;
        int ret = 0;
 
        user_op = (xen_sysctl_t __user *)hypercall->arg[0];
@@ -111,6 +112,7 @@ xencomm_privcmd_sysctl(privcmd_hypercall
                                     (void *)desc);
                break;
        case XEN_SYSCTL_tbuf_op:
+       case XEN_SYSCTL_physinfo:
        case XEN_SYSCTL_sched_id:
        case XEN_SYSCTL_availheap:
                break;
@@ -183,18 +185,6 @@ xencomm_privcmd_sysctl(privcmd_hypercall
                                     (void *)desc);
                break;
 
-       case XEN_SYSCTL_physinfo:
-               desc = xencomm_map(
-                       xen_guest_handle(kern_op.u.physinfo.cpu_to_node),
-                       kern_op.u.physinfo.max_cpu_id * sizeof(uint32_t));
-               if (xen_guest_handle(kern_op.u.physinfo.cpu_to_node) != NULL &&
-                   kern_op.u.physinfo.max_cpu_id > 0 && desc == NULL)
-                       return -ENOMEM;
-
-               set_xen_guest_handle(kern_op.u.physinfo.cpu_to_node,
-                                    (void *)desc);
-               break;
-
        case XEN_SYSCTL_get_pmstat:
                if (kern_op.u.get_pmstat.type == PMSTAT_get_pxstat) {
                        struct pm_px_stat *getpx =
@@ -219,6 +209,79 @@ xencomm_privcmd_sysctl(privcmd_hypercall
                }
                break;
 
+       case XEN_SYSCTL_topologyinfo:
+       {
+               xen_sysctl_topologyinfo_t *info = &kern_op.u.topologyinfo;
+               unsigned long size =
+                       (info->max_cpu_index + 1) * sizeof(uint32_t);
+
+               desc = xencomm_map(xen_guest_handle(info->cpu_to_core), size);
+               if (xen_guest_handle(info->cpu_to_core) != NULL &&
+                   info->max_cpu_index > 0 && desc == NULL)
+                       return -ENOMEM;
+
+               set_xen_guest_handle(info->cpu_to_core, (void *)desc);
+
+               desc1 = xencomm_map(
+                       xen_guest_handle(info->cpu_to_socket), size);
+               if (xen_guest_handle(info->cpu_to_socket) != NULL &&
+                   info->max_cpu_index > 0 && desc1 == NULL) {
+                       xencomm_free(desc);
+                       return -ENOMEM;
+               }
+
+               set_xen_guest_handle(info->cpu_to_socket, (void *)desc1);
+
+               desc2 = xencomm_map(xen_guest_handle(info->cpu_to_node), size);
+               if (xen_guest_handle(info->cpu_to_node) != NULL &&
+                   info->max_cpu_index > 0 && desc2 == NULL) {
+                       xencomm_free(desc1);
+                       xencomm_free(desc);
+                       return -ENOMEM;
+               }
+
+               set_xen_guest_handle(info->cpu_to_node, (void *)desc2);
+               break;
+       }
+
+       case XEN_SYSCTL_numainfo:
+       {
+               xen_sysctl_numainfo_t *info = &kern_op.u.numainfo;
+               uint32_t max = info->max_node_index;
+
+               desc = xencomm_map(xen_guest_handle(info->node_to_memsize),
+                                  (max + 1) * sizeof(uint64_t));
+               if (xen_guest_handle(info->node_to_memsize) != NULL &&
+                   desc == NULL)
+                       return -ENOMEM;
+
+               set_xen_guest_handle(info->node_to_memsize, (void *)desc);
+
+               desc1 = xencomm_map(xen_guest_handle(info->node_to_memfree),
+                                   (max + 1) * sizeof(uint64_t));
+               if (xen_guest_handle(info->node_to_memfree) != NULL &&
+                   desc1 == NULL) {
+                       xencomm_free(desc);
+                       return -ENOMEM;
+               }
+
+               set_xen_guest_handle(info->node_to_memfree, (void *)desc1);
+
+               desc2 = xencomm_map(
+                       xen_guest_handle(info->node_to_node_distance),
+                       (max + 1) * (max + 1) * sizeof(uint32_t));
+               if (xen_guest_handle(info->node_to_node_distance) != NULL &&
+                   desc2 == NULL) {
+                       xencomm_free(desc1);
+                       xencomm_free(desc);
+                       return -ENOMEM;
+               }
+
+               set_xen_guest_handle(info->node_to_node_distance,
+                                    (void *)desc2);
+               break;
+       }
+
        default:
                printk("%s: unknown sysctl cmd %d\n", __func__, kern_op.cmd);
                return -ENOSYS;
@@ -237,6 +300,7 @@ xencomm_privcmd_sysctl(privcmd_hypercall
 
        xencomm_free(desc);
        xencomm_free(desc1);
+       xencomm_free(desc2);
        return ret;
 }
 

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