[PATCH v6 09/11] tools, libxl: add helpers to establish if guest is auto-translated

[Arianna Avanzini <avanzini.arianna@gmail.com>]

This commit adds, for each architecture supported by libxl, a helper
function which establishes if a domain uses an auto-translated
physmap from the libxl_domain_config structure related to it.

Signed-off-by: Arianna Avanzini <avanzini.arianna@gmail.com>
Cc: Dario Faggioli <dario.faggioli@citrix.com>
Cc: Paolo Valente <paolo.valente@unimore.it>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Julien Grall <julien.grall@citrix.com>
Cc: Ian Campbell <Ian.Campbell@eu.citrix.com>
Cc: Jan Beulich <JBeulich@suse.com>
Cc: Keir Fraser <keir@xen.org>
Cc: Tim Deegan <tim@xen.org>
Cc: Ian Jackson <Ian.Jackson@eu.citrix.com>
Cc: Eric Trudeau <etrudeau@broadcom.com>
Cc: Viktor Kleinik <viktor.kleinik@globallogic.com>
---
 tools/libxl/libxl_arch.h | 4 ++++
 tools/libxl/libxl_arm.c  | 5 +++++
 tools/libxl/libxl_x86.c  | 6 ++++++
 3 files changed, 15 insertions(+)

diff --git a/tools/libxl/libxl_arch.h b/tools/libxl/libxl_arch.h
index d3bc136..d30112c 100644
--- a/tools/libxl/libxl_arch.h
+++ b/tools/libxl/libxl_arch.h
@@ -27,4 +27,8 @@ int libxl__arch_domain_init_hw_description(libxl__gc *gc,
 int libxl__arch_domain_finalise_hw_description(libxl__gc *gc,
                                       libxl_domain_build_info *info,
                                       struct xc_dom_image *dom);
+
+/* establish whether domain has an auto-translated physmap */
+int libxl__arch_auto_translated_physmap(libxl_domain_config *d_config);
+
 #endif
diff --git a/tools/libxl/libxl_arm.c b/tools/libxl/libxl_arm.c
index 4f0f0e2..c787589 100644
--- a/tools/libxl/libxl_arm.c
+++ b/tools/libxl/libxl_arm.c
@@ -12,6 +12,11 @@ int libxl__arch_domain_create(libxl__gc *gc, libxl_domain_config *d_config,
     return 0;
 }
 
+int libxl__arch_auto_translated_physmap(libxl_domain_config *d_config)
+{
+    return 1;
+}
+
 static struct arch_info {
     const char *guest_type;
     const char *timer_compat;
diff --git a/tools/libxl/libxl_x86.c b/tools/libxl/libxl_x86.c
index 7589060..b4162b8 100644
--- a/tools/libxl/libxl_x86.c
+++ b/tools/libxl/libxl_x86.c
@@ -324,3 +324,9 @@ int libxl__arch_domain_finalise_hw_description(libxl__gc *gc,
 {
     return 0;
 }
+
+int libxl__arch_auto_translated_physmap(libxl_domain_config *d_config)
+{
+    return (d_config->b_info.type == LIBXL_DOMAIN_TYPE_HVM ||
+            libxl_defbool_val(d_config->c_info.pvh));
+}
-- 
1.9.1