@@ -2084,6 +2084,9 @@ void libxl__device_vtpm_add(libxl__egc *egc, uint32_t domid,
if (rc) goto out;
DEVICE_ADD(vtpm, vtpms, domid, &vtpm_saved, COMPARE_DEVID, &d_config);
+
+ rc = libxl__dm_check_start(gc, &d_config, domid);
+ if (rc) goto out;
}
for (;;) {
@@ -2388,6 +2391,9 @@ static void device_disk_add(libxl__egc *egc, uint32_t domid,
if (rc) goto out;
DEVICE_ADD(disk, disks, domid, &disk_saved, COMPARE_DISK, &d_config);
+
+ rc = libxl__dm_check_start(gc, &d_config, domid);
+ if (rc) goto out;
}
for (;;) {
@@ -2928,6 +2934,9 @@ int libxl_cdrom_insert(libxl_ctx *ctx, uint32_t domid, libxl_device_disk *disk,
DEVICE_ADD(disk, disks, domid, &disk_saved, COMPARE_DISK, &d_config);
+ rc = libxl__dm_check_start(gc, &d_config, domid);
+ if (rc) goto out;
+
if (dm_ver == LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN) {
rc = libxl__qmp_insert_cdrom(gc, domid, disk);
if (rc) goto out;
@@ -3354,6 +3363,9 @@ void libxl__device_nic_add(libxl__egc *egc, uint32_t domid,
if (rc) goto out;
DEVICE_ADD(nic, nics, domid, &nic_saved, COMPARE_DEVID, &d_config);
+
+ rc = libxl__dm_check_start(gc, &d_config, domid);
+ if (rc) goto out;
}
for (;;) {
@@ -2169,6 +2169,28 @@ int libxl__dm_active(libxl__gc *gc, uint32_t domid)
return pid != NULL;
}
+int libxl__dm_check_start(libxl__gc *gc, libxl_domain_config *d_config,
+ uint32_t domid)
+{
+ int rc;
+
+ if (libxl__dm_active(gc, domid))
+ return 0;
+
+ rc = libxl__need_xenpv_qemu(gc, d_config);
+ if (rc < 0)
+ goto out;
+
+ if (!rc)
+ return 0;
+
+ LOG(ERROR, "device model required but not running");
+ rc = ERROR_FAIL;
+
+out:
+ return rc;
+}
+
/*
* Local variables:
* mode: C
@@ -1618,6 +1618,10 @@ _hidden const char *libxl__domain_device_model(libxl__gc *gc,
const libxl_domain_build_info *info);
_hidden int libxl__need_xenpv_qemu(libxl__gc *gc,
libxl_domain_config *d_config);
+_hidden int libxl__dm_active(libxl__gc *gc, uint32_t domid);
+_hidden int libxl__dm_check_start(libxl__gc *gc,
+ libxl_domain_config *d_config,
+ uint32_t domid);
/*
* This function will fix reserved device memory conflict
@@ -169,6 +169,9 @@ static int libxl__device_pci_add_xenstore(libxl__gc *gc, uint32_t domid, libxl_d
DEVICE_ADD(pci, pcidevs, domid, &pcidev_saved, COMPARE_PCI, &d_config);
+ rc = libxl__dm_check_start(gc, &d_config, domid);
+ if (rc) goto out;
+
for (;;) {
rc = libxl__xs_transaction_start(gc, &t);
if (rc) goto out;
@@ -144,6 +144,9 @@ static int libxl__device_usbctrl_add_xenstore(libxl__gc *gc, uint32_t domid,
DEVICE_ADD(usbctrl, usbctrls, domid, &usbctrl_saved,
COMPARE_USBCTRL, &d_config);
+
+ rc = libxl__dm_check_start(gc, &d_config, domid);
+ if (rc) goto out;
}
for (;;) {
@@ -960,6 +963,9 @@ static int libxl__device_usbdev_add_xenstore(libxl__gc *gc, uint32_t domid,
DEVICE_ADD(usbdev, usbdevs, domid, &usbdev_saved,
COMPARE_USB, &d_config);
+
+ rc = libxl__dm_check_start(gc, &d_config, domid);
+ if (rc) goto out;
}
for (;;) {
Add a service routine checking whether a device model must be started after adding a device to a domain. Signed-off-by: Juergen Gross <jgross@suse.com> --- tools/libxl/libxl.c | 12 ++++++++++++ tools/libxl/libxl_dm.c | 22 ++++++++++++++++++++++ tools/libxl/libxl_internal.h | 4 ++++ tools/libxl/libxl_pci.c | 3 +++ tools/libxl/libxl_pvusb.c | 6 ++++++ 5 files changed, 47 insertions(+)