[Xen-changelog] [xen-unstable] libxl: add feature flag to xenstore for XS_RESET_WATCHES

[Xen patchbot-unstable <patchbot@xxxxxxx>]

# HG changeset patch
# User Olaf Hering <olaf@xxxxxxxxx>
# Date 1325788840 -3600
# Node ID ef99b8571a6fe4e53fb9df4da2833f8f5a5b4ec7
# Parent  164ed9b67ad050cbd9efa24f641120733926d7d6
libxl: add feature flag to xenstore for XS_RESET_WATCHES

Tell guest about availibilty of xenstoreds XS_RESET_WATCHES function.
Guests can not issue this command unconditionally because some buggy
toolstacks (such as EC2) do not ignore unknown commands properly.

Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
---


diff -r 164ed9b67ad0 -r ef99b8571a6f tools/libxl/libxl_create.c
--- a/tools/libxl/libxl_create.c        Tue Jan 10 16:04:26 2012 +0000
+++ b/tools/libxl/libxl_create.c        Thu Jan 05 19:40:40 2012 +0100
@@ -452,6 +452,7 @@
     libxl__xs_writev(gc, t, libxl__sprintf(gc, "%s/platform", dom_path), 
info->platformdata);
 
     xs_write(ctx->xsh, t, libxl__sprintf(gc, 
"%s/control/platform-feature-multiprocessor-suspend", dom_path), "1", 1);
+    xs_write(ctx->xsh, t, libxl__sprintf(gc, 
"%s/control/platform-feature-xs_reset_watches", dom_path), "1", 1);
     if (!xs_transaction_end(ctx->xsh, t, 0)) {
         if (errno == EAGAIN) {
             t = 0;
diff -r 164ed9b67ad0 -r ef99b8571a6f tools/python/xen/xend/XendDomainInfo.py
--- a/tools/python/xen/xend/XendDomainInfo.py   Tue Jan 10 16:04:26 2012 +0000
+++ b/tools/python/xen/xend/XendDomainInfo.py   Thu Jan 05 19:40:40 2012 +0100
@@ -1770,6 +1770,7 @@
         f('store/port',       self.store_port)
         f('store/ring-ref',   self.store_mfn)
 
+        f('control/platform-feature-xs_reset_watches', True)
         if arch.type == "x86":
             f('control/platform-feature-multiprocessor-suspend', True)
 

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