libxc: eliminate static variables, use xentoollog; API change

This patch eliminate the global variables in libxenctrl (used for
logging and error reporting).

Instead the information which was in the global variables is now in a
new xc_interface* opaque structure, which xc_interface open returns
instead of the raw file descriptor; furthermore, logging is done via
xentoollog.

There are three new parameters to xc_interface_open to control the
logging, but existing callers can just pass "0" for all three to get
the old behaviour.

All libxc callers have been adjusted accordingly.

Also update QEMU_TAG for corresponding qemu change.

Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>

1 files changed, 5 insertions, 3 deletions

diff --git a/tools/libxc/xg_private.h b/tools/libxc/xg_private.h
index a15dd91825..5f67d8cf35 100644
--- a/tools/libxc/xg_private.h
+++ b/tools/libxc/xg_private.h
@@ -27,8 +27,10 @@
 #endif
 #endif
 
-char *xc_read_image(const char *filename, unsigned long *size);
-char *xc_inflate_buffer(const char *in_buf,
+char *xc_read_image(xc_interface *xch,
+                    const char *filename, unsigned long *size);
+char *xc_inflate_buffer(xc_interface *xch,
+                        const char *in_buf,
                         unsigned long in_size,
                         unsigned long *out_size);
 
@@ -174,7 +176,7 @@ struct domain_info_context {
 #define PAEKERN_extended_cr3 2
 #define PAEKERN_bimodal      3
 
-int pin_table(int xc_handle, unsigned int type, unsigned long mfn,
+int pin_table(xc_interface *xch, unsigned int type, unsigned long mfn,
               domid_t dom);
 
 #endif /* XG_PRIVATE_H */