[Xen-devel] [PATCH 11/14]: libxenlight, write vcpu availability paths in xenstore

[Andres Lagar-Cavilla <andres@xxxxxxxxxxxxxxxx>]

Write cpu availability paths to xenstore. Otherwise,
no vcpus other than the first are enabled.

Signed-off-by: Andres Lagar-Cavilla <andres@xxxxxxxxxxxxxxxx>


# HG changeset patch
# User Andres Lagar-Cavilla <andres@xxxxxxxxxxxxxxxx>
# Date 1259434282 18000
# Node ID e350e5449b66b63eaf4ab13e3b418473cd5e7827
# Parent  9c274dac208ff294bf1d31646910e472cf95cb60
Write cpu availability paths to xenstore. Otherwise, 
no vcpus other than the first are enabled.

Signed-off-by: Andres Lagar-Cavilla <andres@xxxxxxxxxxxxxxxx>

diff -r 9c274dac208f -r e350e5449b66 libxl_dom.c
--- a/libxl_dom.c
+++ b/libxl_dom.c
@@ -74,8 +74,9 @@ int build_post(struct libxl_ctx *ctx, ui
     char *dom_path, *vm_path;
     xs_transaction_t t;
     char **ents;
+    int i;
 
-    ents = libxl_calloc(ctx, 10 * 2, sizeof(char *));
+    ents = libxl_calloc(ctx, (10 + info->max_vcpus) * 2, sizeof(char *));
     ents[0] = "memory/static-max";
     ents[1] = libxl_sprintf(ctx, "%d", info->max_memkb);
     ents[2] = "memory/target";
@@ -86,6 +87,10 @@ int build_post(struct libxl_ctx *ctx, ui
     ents[7] = libxl_sprintf(ctx, "%"PRIu32, state->store_port);
     ents[8] = "store/ring-ref";
     ents[9] = libxl_sprintf(ctx, "%lu", state->store_mfn);
+    for (i = 0; i < info->max_vcpus; i++) {
+        ents[10+(i*2)]   = libxl_sprintf(ctx, "cpu/%d/availability", i);
+        ents[10+(i*2)+1] = "online";
+    }
 
     dom_path = libxl_xs_get_dompath(ctx, domid);
     if (!dom_path)
@@ -104,6 +109,8 @@ retry_transaction:
             goto retry_transaction;
     xs_introduce_domain(ctx->xsh, domid, state->store_mfn, state->store_port);
     free(vm_path);
+    libxl_free(ctx, ents);
+    libxl_free(ctx, dom_path);
     return 0;
 }
 

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