Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* bugfixes
* show machine ACPI support in QAPI
* Core Xen emulation support for KVM/x86

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# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (62 commits)
  Makefile: qemu-bundle is a directory
  qapi: Add 'acpi' field to 'query-machines' output
  hw/xen: Subsume xen_be_register_common() into xen_be_init()
  i386/xen: Document Xen HVM emulation
  kvm/i386: Add xen-evtchn-max-pirq property
  hw/xen: Support MSI mapping to PIRQ
  hw/xen: Support GSI mapping to PIRQ
  hw/xen: Implement emulated PIRQ hypercall support
  i386/xen: Implement HYPERVISOR_physdev_op
  hw/xen: Automatically add xen-platform PCI device for emulated Xen guests
  hw/xen: Add basic ring handling to xenstore
  hw/xen: Add xen_xenstore device for xenstore emulation
  hw/xen: Add backend implementation of interdomain event channel support
  i386/xen: handle HVMOP_get_param
  i386/xen: Reserve Xen special pages for console, xenstore rings
  i386/xen: handle PV timer hypercalls
  hw/xen: Implement GNTTABOP_query_size
  i386/xen: Implement HYPERVISOR_grant_table_op and GNTTABOP_[gs]et_verson
  hw/xen: Support mapping grant frames
  hw/xen: Add xen_gnttab device for grant table emulation
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

2 files changed, 25 insertions, 34 deletions

diff --git a/hw/xen/Kconfig b/hw/xen/Kconfig
new file mode 100644
index 0000000..3467efb
--- /dev/null
+++ b/hw/xen/Kconfig
@@ -0,0 +1,3 @@
+config XEN_BUS
+    bool
+    default y if (XEN || XEN_EMU)
diff --git a/hw/xen/xen-legacy-backend.c b/hw/xen/xen-legacy-backend.c
index 085fd31..afba71f 100644
--- a/hw/xen/xen-legacy-backend.c
+++ b/hw/xen/xen-legacy-backend.c
@@ -676,21 +676,30 @@ void xenstore_update_fe(char *watch, struct XenLegacyDevice *xendev)
 }
 /* -------------------------------------------------------------------- */
 
-int xen_be_init(void)
+static void xen_set_dynamic_sysbus(void)
+{
+    Object *machine = qdev_get_machine();
+    ObjectClass *oc = object_get_class(machine);
+    MachineClass *mc = MACHINE_CLASS(oc);
+
+    machine_class_allow_dynamic_sysbus_dev(mc, TYPE_XENSYSDEV);
+}
+
+void xen_be_init(void)
 {
     xengnttab_handle *gnttabdev;
 
     xenstore = xs_daemon_open();
     if (!xenstore) {
         xen_pv_printf(NULL, 0, "can't connect to xenstored\n");
-        return -1;
+        exit(1);
     }
 
     qemu_set_fd_handler(xs_fileno(xenstore), xenstore_update, NULL, NULL);
 
     if (xen_xc == NULL || xen_fmem == NULL) {
-        /* Check if xen_init() have been called */
-        goto err;
+        xen_pv_printf(NULL, 0, "Xen operations not set up\n");
+        exit(1);
     }
 
     gnttabdev = xengnttab_open(NULL, 0);
@@ -706,23 +715,16 @@ int xen_be_init(void)
     xen_sysbus = qbus_new(TYPE_XENSYSBUS, xen_sysdev, "xen-sysbus");
     qbus_set_bus_hotplug_handler(xen_sysbus);
 
-    return 0;
-
-err:
-    qemu_set_fd_handler(xs_fileno(xenstore), NULL, NULL, NULL);
-    xs_daemon_close(xenstore);
-    xenstore = NULL;
-
-    return -1;
-}
-
-static void xen_set_dynamic_sysbus(void)
-{
-    Object *machine = qdev_get_machine();
-    ObjectClass *oc = object_get_class(machine);
-    MachineClass *mc = MACHINE_CLASS(oc);
+    xen_set_dynamic_sysbus();
 
-    machine_class_allow_dynamic_sysbus_dev(mc, TYPE_XENSYSDEV);
+    xen_be_register("console", &xen_console_ops);
+    xen_be_register("vkbd", &xen_kbdmouse_ops);
+#ifdef CONFIG_VIRTFS
+    xen_be_register("9pfs", &xen_9pfs_ops);
+#endif
+#ifdef CONFIG_USB_LIBUSB
+    xen_be_register("qusb", &xen_usb_ops);
+#endif
 }
 
 int xen_be_register(const char *type, struct XenDevOps *ops)
@@ -744,20 +746,6 @@ int xen_be_register(const char *type, struct XenDevOps *ops)
     return xenstore_scan(type, xen_domid, ops);
 }
 
-void xen_be_register_common(void)
-{
-    xen_set_dynamic_sysbus();
-
-    xen_be_register("console", &xen_console_ops);
-    xen_be_register("vkbd", &xen_kbdmouse_ops);
-#ifdef CONFIG_VIRTFS
-    xen_be_register("9pfs", &xen_9pfs_ops);
-#endif
-#ifdef CONFIG_USB_LIBUSB
-    xen_be_register("qusb", &xen_usb_ops);
-#endif
-}
-
 int xen_be_bind_evtchn(struct XenLegacyDevice *xendev)
 {
     if (xendev->local_port != -1) {