[Xen-changelog] [xen master] libxl: Update xenstore on VCPU hotplug for all guest types

[patchbot@xxxxxxx]

commit f50e4912b763df0c56c01c163a3d9427794a6905
Author:     Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
AuthorDate: Tue Jan 3 09:04:12 2017 -0500
Commit:     Wei Liu <wei.liu2@xxxxxxxxxx>
CommitDate: Thu Jan 5 16:38:22 2017 +0000

    libxl: Update xenstore on VCPU hotplug for all guest types
    
    Currently HVM guests that use upstream qemu do not update xenstore's
    availability entry for VCPUs. While it is not strictly necessary for
    hotplug to work, xenstore ends up not reflecting actual status of
    VCPUs. We should fix this.
    
    Signed-off-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
    Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
---
 tools/libxl/libxl.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/libxl/libxl.c b/tools/libxl/libxl.c
index d03e939..0622311 100644
--- a/tools/libxl/libxl.c
+++ b/tools/libxl/libxl.c
@@ -5155,7 +5155,6 @@ int libxl_set_vcpuonline(libxl_ctx *ctx, uint32_t domid, 
libxl_bitmap *cpumap)
         switch (libxl__device_model_version_running(gc, domid)) {
         case LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN_TRADITIONAL:
         case LIBXL_DEVICE_MODEL_VERSION_NONE:
-            rc = libxl__set_vcpuonline_xenstore(gc, domid, cpumap, &info);
             break;
         case LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN:
             rc = libxl__set_vcpuonline_qmp(gc, domid, cpumap, &info);
@@ -5165,11 +5164,14 @@ int libxl_set_vcpuonline(libxl_ctx *ctx, uint32_t 
domid, libxl_bitmap *cpumap)
         }
         break;
     case LIBXL_DOMAIN_TYPE_PV:
-        rc = libxl__set_vcpuonline_xenstore(gc, domid, cpumap, &info);
         break;
     default:
         rc = ERROR_INVAL;
     }
+
+    if (!rc)
+        rc = libxl__set_vcpuonline_xenstore(gc, domid, cpumap, &info);
+
 out:
     libxl_dominfo_dispose(&info);
     GC_FREE;
--
generated by git-patchbot for /home/xen/git/xen.git#master

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