| Message ID | 1483981368-9965-3-git-send-email-ashijeetacharya@gmail.com |
|---|---|
| State | New |
| Headers | show |
* Ashijeet Acharya (ashijeetacharya@gmail.com) wrote: > Introduce checks for the unmigratable flag in the VMStateDescription > structs of respective devices when user attempts to add them. If the > "--only-migratable" was specified, all unmigratable devices will > rightly fail to add. This feature is made compatible for both "-device" > and "-usbdevice" command line options and covers their hmp and qmp > counterparts as well. > > Signed-off-by: Ashijeet Acharya <ashijeetacharya@gmail.com> > --- > hw/usb/bus.c | 18 ++++++++++++++++++ > qdev-monitor.c | 9 +++++++++ > 2 files changed, 27 insertions(+) > > diff --git a/hw/usb/bus.c b/hw/usb/bus.c > index 25913ad..3d26103 100644 > --- a/hw/usb/bus.c > +++ b/hw/usb/bus.c > @@ -8,6 +8,7 @@ > #include "monitor/monitor.h" > #include "trace.h" > #include "qemu/cutils.h" > +#include "migration/migration.h" > > static void usb_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent); > > @@ -686,6 +687,8 @@ USBDevice *usbdevice_create(const char *cmdline) > const char *params; > int len; > USBDevice *dev; > + ObjectClass *klass; > + DeviceClass *dc; > > params = strchr(cmdline,':'); > if (params) { > @@ -720,6 +723,21 @@ USBDevice *usbdevice_create(const char *cmdline) > return NULL; > } > > + klass = object_class_by_name(f->name); > + if (klass == NULL) { > + return NULL; All error paths should print something, even if it shouldn't happen. Dave > + } > + > + dc = DEVICE_CLASS(klass); > + > + if (only_migratable) { > + if (dc->vmsd->unmigratable) { > + error_report("Device %s is not migratable, but --only-migratable " > + "was specified", f->name); > + return NULL; > + } > + } > + > if (f->usbdevice_init) { > dev = f->usbdevice_init(bus, params); > } else { > diff --git a/qdev-monitor.c b/qdev-monitor.c > index c73410c..81d01df 100644 > --- a/qdev-monitor.c > +++ b/qdev-monitor.c > @@ -29,6 +29,7 @@ > #include "qemu/error-report.h" > #include "qemu/help_option.h" > #include "sysemu/block-backend.h" > +#include "migration/migration.h" > > /* > * Aliases were a bad idea from the start. Let's keep them > @@ -577,6 +578,14 @@ DeviceState *qdev_device_add(QemuOpts *opts, Error **errp) > return NULL; > } > > + if (only_migratable) { > + if (dc->vmsd->unmigratable) { > + error_setg(errp, "Device %s is not migratable, but " > + "--only-migratable was specified", driver); > + return NULL; > + } > + } > + > /* find bus */ > path = qemu_opt_get(opts, "bus"); > if (path != NULL) { > -- > 2.6.2 > -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
diff --git a/hw/usb/bus.c b/hw/usb/bus.c index 25913ad..3d26103 100644 --- a/hw/usb/bus.c +++ b/hw/usb/bus.c @@ -8,6 +8,7 @@ #include "monitor/monitor.h" #include "trace.h" #include "qemu/cutils.h" +#include "migration/migration.h" static void usb_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent); @@ -686,6 +687,8 @@ USBDevice *usbdevice_create(const char *cmdline) const char *params; int len; USBDevice *dev; + ObjectClass *klass; + DeviceClass *dc; params = strchr(cmdline,':'); if (params) { @@ -720,6 +723,21 @@ USBDevice *usbdevice_create(const char *cmdline) return NULL; } + klass = object_class_by_name(f->name); + if (klass == NULL) { + return NULL; + } + + dc = DEVICE_CLASS(klass); + + if (only_migratable) { + if (dc->vmsd->unmigratable) { + error_report("Device %s is not migratable, but --only-migratable " + "was specified", f->name); + return NULL; + } + } + if (f->usbdevice_init) { dev = f->usbdevice_init(bus, params); } else { diff --git a/qdev-monitor.c b/qdev-monitor.c index c73410c..81d01df 100644 --- a/qdev-monitor.c +++ b/qdev-monitor.c @@ -29,6 +29,7 @@ #include "qemu/error-report.h" #include "qemu/help_option.h" #include "sysemu/block-backend.h" +#include "migration/migration.h" /* * Aliases were a bad idea from the start. Let's keep them @@ -577,6 +578,14 @@ DeviceState *qdev_device_add(QemuOpts *opts, Error **errp) return NULL; } + if (only_migratable) { + if (dc->vmsd->unmigratable) { + error_setg(errp, "Device %s is not migratable, but " + "--only-migratable was specified", driver); + return NULL; + } + } + /* find bus */ path = qemu_opt_get(opts, "bus"); if (path != NULL) {
Introduce checks for the unmigratable flag in the VMStateDescription structs of respective devices when user attempts to add them. If the "--only-migratable" was specified, all unmigratable devices will rightly fail to add. This feature is made compatible for both "-device" and "-usbdevice" command line options and covers their hmp and qmp counterparts as well. Signed-off-by: Ashijeet Acharya <ashijeetacharya@gmail.com> --- hw/usb/bus.c | 18 ++++++++++++++++++ qdev-monitor.c | 9 +++++++++ 2 files changed, 27 insertions(+)