From b853920b298d19a1905d106c7d965bda29b7a26c Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Mon, 2 Sep 2013 13:26:15 +0200 Subject: [PATCH 09/29] usb: add serial bus property RH-Author: Gerd Hoffmann Message-id: <1378128376-25930-2-git-send-email-kraxel@redhat.com> Patchwork-id: 53989 O-Subject: [RHEL-7 qemu-kvm PATCH 1/2] usb: add serial bus property Bugzilla: 953304 RH-Acked-by: Markus Armbruster RH-Acked-by: Hans de Goede RH-Acked-by: Paolo Bonzini This patch adds a serial property for all usb devices, which can be used to set the serial number of a usb device (as listed by lsusb -v) to a specific value. Applies to emulated devices only. Signed-off-by: Gerd Hoffmann (cherry picked from commit 71938a09d2b9fd4007515fec6c395916cb08f868) --- hw/usb/bus.c | 1 + hw/usb/desc.c | 6 ++++++ hw/usb/dev-hid.c | 3 +++ hw/usb/dev-storage.c | 13 +++---------- include/hw/usb.h | 1 + 5 files changed, 14 insertions(+), 10 deletions(-) Signed-off-by: Miroslav Rezanina --- hw/usb/bus.c | 1 + hw/usb/desc.c | 6 ++++++ hw/usb/dev-hid.c | 3 +++ hw/usb/dev-storage.c | 13 +++---------- include/hw/usb.h | 1 + 5 files changed, 14 insertions(+), 10 deletions(-) diff --git a/hw/usb/bus.c b/hw/usb/bus.c index d1827be..f83d1de 100644 --- a/hw/usb/bus.c +++ b/hw/usb/bus.c @@ -13,6 +13,7 @@ static int usb_qdev_exit(DeviceState *qdev); static Property usb_props[] = { DEFINE_PROP_STRING("port", USBDevice, port_path), + DEFINE_PROP_STRING("serial", USBDevice, serial), DEFINE_PROP_BIT("full-path", USBDevice, flags, USB_DEV_FLAG_FULL_PATH, true), DEFINE_PROP_END_OF_LIST() diff --git a/hw/usb/desc.c b/hw/usb/desc.c index fce303e..bf6c522 100644 --- a/hw/usb/desc.c +++ b/hw/usb/desc.c @@ -566,6 +566,12 @@ void usb_desc_create_serial(USBDevice *dev) char *path; int dst; + if (dev->serial) { + /* 'serial' usb bus property has priority if present */ + usb_desc_set_string(dev, index, dev->serial); + return; + } + assert(index != 0 && desc->str[index] != NULL); dst = snprintf(serial, sizeof(serial), "%s", desc->str[index]); path = qdev_get_dev_path(hcd); diff --git a/hw/usb/dev-hid.c b/hw/usb/dev-hid.c index b48899d..31f3cde 100644 --- a/hw/usb/dev-hid.c +++ b/hw/usb/dev-hid.c @@ -560,6 +560,9 @@ static int usb_hid_initfn(USBDevice *dev, int kind) { USBHIDState *us = DO_UPCAST(USBHIDState, dev, dev); + if (dev->serial) { + usb_desc_set_string(dev, STR_SERIALNUMBER, dev->serial); + } usb_desc_init(dev); us->intr = usb_ep_get(dev, USB_TOKEN_IN, 1); hid_init(&us->hid, kind, usb_hid_changed); diff --git a/hw/usb/dev-storage.c b/hw/usb/dev-storage.c index 1073901..fe914ab 100644 --- a/hw/usb/dev-storage.c +++ b/hw/usb/dev-storage.c @@ -58,7 +58,6 @@ typedef struct { USBPacket *packet; /* usb-storage only */ BlockConf conf; - char *serial; uint32_t removable; } MSDState; @@ -602,7 +601,7 @@ static int usb_msd_initfn_storage(USBDevice *dev) return -1; } - blkconf_serial(&s->conf, &s->serial); + blkconf_serial(&s->conf, &dev->serial); /* * Hack alert: this pretends to be a block device, but it's really @@ -616,16 +615,11 @@ static int usb_msd_initfn_storage(USBDevice *dev) bdrv_detach_dev(bs, &s->dev.qdev); s->conf.bs = NULL; - if (s->serial) { - usb_desc_set_string(dev, STR_SERIALNUMBER, s->serial); - } else { - usb_desc_create_serial(dev); - } - + usb_desc_create_serial(dev); usb_desc_init(dev); scsi_bus_new(&s->bus, &s->dev.qdev, &usb_msd_scsi_info_storage, NULL); scsi_dev = scsi_bus_legacy_add_drive(&s->bus, bs, 0, !!s->removable, - s->conf.bootindex, s->serial); + s->conf.bootindex, dev->serial); if (!scsi_dev) { return -1; } @@ -734,7 +728,6 @@ static const VMStateDescription vmstate_usb_msd = { static Property msd_properties[] = { DEFINE_BLOCK_PROPERTIES(MSDState, conf), - DEFINE_PROP_STRING("serial", MSDState, serial), DEFINE_PROP_BIT("removable", MSDState, removable, 0, false), DEFINE_PROP_END_OF_LIST(), }; diff --git a/include/hw/usb.h b/include/hw/usb.h index 4d9d05e..901b0da 100644 --- a/include/hw/usb.h +++ b/include/hw/usb.h @@ -205,6 +205,7 @@ struct USBDevice { DeviceState qdev; USBPort *port; char *port_path; + char *serial; void *opaque; uint32_t flags; -- 1.7.1