[PATCH] libxl: fix regression introduced by commit 4ab8cd77

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Commit 4ab8cd77 added a check requiring input devices to have
a bus type of VIR_DOMAIN_INPUT_BUS_USB, failing to start the
domain otherwise.  But virDomainDefParseXML adds implicit mouse
and keyboard if a graphics device is configured.  See calls to
virDomainDefMaybeAddInput.

The regression is fixed by removing the check requiring USB input
devices, and skipping non-USB input devices when populating USB
'usbdevice' in libxl_domain_build_info struct.

Signed-off-by: Jim Fehlig <jfehlig@xxxxxxxx>
---
 src/libxl/libxl_conf.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c
index 50ef9d8..2b57d0b 100644
--- a/src/libxl/libxl_conf.c
+++ b/src/libxl/libxl_conf.c
@@ -750,13 +750,6 @@ libxlMakeDomBuildInfo(virDomainDefPtr def,
         libxl_defbool_set(&b_info->u.hvm.sdl.enable, 0);
 
         if (def->ninputs) {
-            for (i = 0; i < def->ninputs; i++) {
-                if (def->inputs[i]->bus != VIR_DOMAIN_INPUT_BUS_USB) {
-                    virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-                            _("libxenlight supports only USB input"));
-                    return -1;
-                }
-            }
 #ifdef LIBXL_HAVE_BUILDINFO_USBDEVICE_LIST
             if (VIR_ALLOC_N(b_info->u.hvm.usbdevice_list, def->ninputs+1) < 0)
                 return -1;
@@ -769,6 +762,10 @@ libxlMakeDomBuildInfo(virDomainDefPtr def,
 #endif
             for (i = 0; i < def->ninputs; i++) {
                 char **usbdevice;
+
+                if (def->inputs[i]->bus != VIR_DOMAIN_INPUT_BUS_USB)
+                    continue;
+
 #ifdef LIBXL_HAVE_BUILDINFO_USBDEVICE_LIST
                 usbdevice = &b_info->u.hvm.usbdevice_list[i];
 #else
-- 
1.8.4.5

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