[Xen-changelog] [qemu-xen stable-4.3] xen: fix usage of xc_domain_create in domain builder

[patchbot@xxxxxxx]

commit dfa931206ef90f27c4998399e03233501d7e8705
Author:     Roger Pau Monne <roger.pau@xxxxxxxxxx>
AuthorDate: Fri Nov 13 17:38:06 2015 +0000
Commit:     Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
CommitDate: Fri Feb 5 14:47:03 2016 +0000

    xen: fix usage of xc_domain_create in domain builder

    Due to the addition of HVMlite and the requirement to always provide a
    valid xc_domain_configuration_t, xc_domain_create now always takes an arch
    domain config, which can be NULL in order to mimic previous behaviour.

    Add a small stub called xen_domain_create that encapsulates the correct
    call to xc_domain_create depending on the libxc version detected.

    Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Acked-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
    Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
---
 configure            | 19 ++++++++++++++++++-
 hw/xen_common.h      | 16 ++++++++++++++++
 hw/xen_domainbuild.c |  2 +-
 3 files changed, 35 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 994f731..4dcbd67 100755
--- a/configure
+++ b/configure
@@ -1432,7 +1432,24 @@ EOF
     fi
     xen=no

-  # Xen unstable
+  # Xen 4.7
+  elif
+      cat > $TMPC <<EOF &&
+#include <xenctrl.h>
+#include <stdint.h>
+int main(void) {
+  xc_interface *xc = NULL;
+  xen_domain_handle_t handle;
+  xc_domain_create(xc, 0, handle, 0, NULL, NULL);
+  return 0;
+}
+EOF
+      compile_prog "" "$xen_libs"
+    then
+    xen_ctrl_version=470
+    xen=yes
+
+  # Xen 4.2
   elif
       cat > $TMPC <<EOF &&
 #include <xenctrl.h>
diff --git a/hw/xen_common.h b/hw/xen_common.h
index 727757a..f6d4951 100644
--- a/hw/xen_common.h
+++ b/hw/xen_common.h
@@ -157,4 +157,20 @@ void destroy_hvm_domain(bool reboot);
 /* shutdown/destroy current domain because of an error */
 void xen_shutdown_fatal_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2);

+#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 470
+static inline int xen_domain_create(XenXC xc, uint32_t ssidref,
+                                    xen_domain_handle_t handle, uint32_t flags,
+                                    uint32_t *pdomid)
+{
+    return xc_domain_create(xc, ssidref, handle, flags, pdomid);
+}
+#else
+static inline int xen_domain_create(XenXC xc, uint32_t ssidref,
+                                    xen_domain_handle_t handle, uint32_t flags,
+                                    uint32_t *pdomid)
+{
+    return xc_domain_create(xc, ssidref, handle, flags, pdomid, NULL);
+}
+#endif
+
 #endif /* QEMU_HW_XEN_COMMON_H */
diff --git a/hw/xen_domainbuild.c b/hw/xen_domainbuild.c
index db14974..f4d170a 100644
--- a/hw/xen_domainbuild.c
+++ b/hw/xen_domainbuild.c
@@ -234,7 +234,7 @@ int xen_domain_build_pv(const char *kernel, const char 
*ramdisk,
     int rc;

     memcpy(uuid, qemu_uuid, sizeof(uuid));
-    rc = xc_domain_create(xen_xc, ssidref, uuid, flags, &xen_domid);
+    rc = xen_domain_create(xen_xc, ssidref, uuid, flags, &xen_domid);
     if (rc < 0) {
         fprintf(stderr, "xen: xc_domain_create() failed\n");
         goto err;
--
generated by git-patchbot for /home/xen/git/qemu-xen.git#stable-4.3

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