[Xen-changelog] [xen-unstable] xc_ptrace: Allow gdbserver to connect to a guest before APs are

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1222943528 -3600
# Node ID 8dc05a2b3beb62738cceebffa1371bcf654bff52
# Parent  60937c4c5a673d3b2179255e0f9b2e17bfd8f8be
xc_ptrace: Allow gdbserver to connect to a guest before APs are
brought online.

Signed-off-by: Kip Macy <kmacy@xxxxxxxxxxx>
Signed-off-by: Keir Fraser <keir.fraser@xxxxxxxxxx>
---
 tools/libxc/xc_ptrace.c |    9 ++++-----
 1 files changed, 4 insertions(+), 5 deletions(-)

diff -r 60937c4c5a67 -r 8dc05a2b3beb tools/libxc/xc_ptrace.c
--- a/tools/libxc/xc_ptrace.c   Thu Oct 02 10:37:28 2008 +0100
+++ b/tools/libxc/xc_ptrace.c   Thu Oct 02 11:32:08 2008 +0100
@@ -112,17 +112,16 @@ get_online_cpumap(int xc_handle, struct 
 get_online_cpumap(int xc_handle, struct xen_domctl_getdomaininfo *d,
                   uint64_t *cpumap)
 {
-    int i, online, retval;
+    int i, online;
 
     *cpumap = 0;
     for (i = 0; i <= d->max_vcpu_id; i++) {
-        if ((retval = fetch_regs(xc_handle, i, &online)))
-            return retval;
+        fetch_regs(xc_handle, i, &online);
         if (online)
             *cpumap |= (1 << i);
     }
-
-    return 0;
+    
+    return (*cpumap == 0) ? -1 : 0;
 }
 
 /*

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