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Diffstat (limited to 'qga/commands-posix.c')
-rw-r--r--qga/commands-posix.c166
1 files changed, 118 insertions, 48 deletions
diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index 1a62a3a70d..af5a58a9fd 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -861,28 +861,26 @@ static int build_hosts(char const *syspath, char const *host, bool ata,
return i;
}
-/* Store disk device info specified by @sysfs into @fs */
-static void build_guest_fsinfo_for_real_device(char const *syspath,
- GuestFilesystemInfo *fs,
- Error **errp)
+/*
+ * Store disk device info for devices on the PCI bus.
+ * Returns true if information has been stored, or false for failure.
+ */
+static bool build_guest_fsinfo_for_pci_dev(char const *syspath,
+ GuestDiskAddress *disk,
+ Error **errp)
{
unsigned int pci[4], host, hosts[8], tgt[3];
int i, nhosts = 0, pcilen;
- GuestDiskAddress *disk;
- GuestPCIAddress *pciaddr;
- GuestDiskAddressList *list = NULL;
+ GuestPCIAddress *pciaddr = disk->pci_controller;
bool has_ata = false, has_host = false, has_tgt = false;
char *p, *q, *driver = NULL;
-#ifdef CONFIG_LIBUDEV
- struct udev *udev = NULL;
- struct udev_device *udevice = NULL;
-#endif
+ bool ret = false;
p = strstr(syspath, "/devices/pci");
if (!p || sscanf(p + 12, "%*x:%*x/%x:%x:%x.%x%n",
pci, pci + 1, pci + 2, pci + 3, &pcilen) < 4) {
g_debug("only pci device is supported: sysfs path '%s'", syspath);
- return;
+ return false;
}
p += 12 + pcilen;
@@ -903,7 +901,7 @@ static void build_guest_fsinfo_for_real_device(char const *syspath,
}
g_debug("unsupported driver or sysfs path '%s'", syspath);
- return;
+ return false;
}
p = strstr(syspath, "/target");
@@ -929,38 +927,11 @@ static void build_guest_fsinfo_for_real_device(char const *syspath,
}
}
- pciaddr = g_malloc0(sizeof(*pciaddr));
pciaddr->domain = pci[0];
pciaddr->bus = pci[1];
pciaddr->slot = pci[2];
pciaddr->function = pci[3];
- disk = g_malloc0(sizeof(*disk));
- disk->pci_controller = pciaddr;
-
- list = g_malloc0(sizeof(*list));
- list->value = disk;
-
-#ifdef CONFIG_LIBUDEV
- udev = udev_new();
- udevice = udev_device_new_from_syspath(udev, syspath);
- if (udev == NULL || udevice == NULL) {
- g_debug("failed to query udev");
- } else {
- const char *devnode, *serial;
- devnode = udev_device_get_devnode(udevice);
- if (devnode != NULL) {
- disk->dev = g_strdup(devnode);
- disk->has_dev = true;
- }
- serial = udev_device_get_property_value(udevice, "ID_SERIAL");
- if (serial != NULL && *serial != 0) {
- disk->serial = g_strdup(serial);
- disk->has_serial = true;
- }
- }
-#endif
-
if (strcmp(driver, "ata_piix") == 0) {
/* a host per ide bus, target*:0:<unit>:0 */
if (!has_host || !has_tgt) {
@@ -1018,21 +989,111 @@ static void build_guest_fsinfo_for_real_device(char const *syspath,
goto cleanup;
}
- list->next = fs->disk;
- fs->disk = list;
- goto out;
+ ret = true;
cleanup:
- if (list) {
- qapi_free_GuestDiskAddressList(list);
- }
-out:
g_free(driver);
+ return ret;
+}
+
+/*
+ * Store disk device info for non-PCI virtio devices (for example s390x
+ * channel I/O devices). Returns true if information has been stored, or
+ * false for failure.
+ */
+static bool build_guest_fsinfo_for_nonpci_virtio(char const *syspath,
+ GuestDiskAddress *disk,
+ Error **errp)
+{
+ unsigned int tgt[3];
+ char *p;
+
+ if (!strstr(syspath, "/virtio") || !strstr(syspath, "/block")) {
+ g_debug("Unsupported virtio device '%s'", syspath);
+ return false;
+ }
+
+ p = strstr(syspath, "/target");
+ if (p && sscanf(p + 7, "%*u:%*u:%*u/%*u:%u:%u:%u",
+ &tgt[0], &tgt[1], &tgt[2]) == 3) {
+ /* virtio-scsi: target*:0:<target>:<unit> */
+ disk->bus_type = GUEST_DISK_BUS_TYPE_SCSI;
+ disk->bus = tgt[0];
+ disk->target = tgt[1];
+ disk->unit = tgt[2];
+ } else {
+ /* virtio-blk: 1 disk per 1 device */
+ disk->bus_type = GUEST_DISK_BUS_TYPE_VIRTIO;
+ }
+
+ return true;
+}
+
+/* Store disk device info specified by @sysfs into @fs */
+static void build_guest_fsinfo_for_real_device(char const *syspath,
+ GuestFilesystemInfo *fs,
+ Error **errp)
+{
+ GuestDiskAddress *disk;
+ GuestPCIAddress *pciaddr;
+ GuestDiskAddressList *list = NULL;
+ bool has_hwinf;
+#ifdef CONFIG_LIBUDEV
+ struct udev *udev = NULL;
+ struct udev_device *udevice = NULL;
+#endif
+
+ pciaddr = g_new0(GuestPCIAddress, 1);
+ pciaddr->domain = -1; /* -1 means field is invalid */
+ pciaddr->bus = -1;
+ pciaddr->slot = -1;
+ pciaddr->function = -1;
+
+ disk = g_new0(GuestDiskAddress, 1);
+ disk->pci_controller = pciaddr;
+ disk->bus_type = GUEST_DISK_BUS_TYPE_UNKNOWN;
+
+ list = g_new0(GuestDiskAddressList, 1);
+ list->value = disk;
+
#ifdef CONFIG_LIBUDEV
+ udev = udev_new();
+ udevice = udev_device_new_from_syspath(udev, syspath);
+ if (udev == NULL || udevice == NULL) {
+ g_debug("failed to query udev");
+ } else {
+ const char *devnode, *serial;
+ devnode = udev_device_get_devnode(udevice);
+ if (devnode != NULL) {
+ disk->dev = g_strdup(devnode);
+ disk->has_dev = true;
+ }
+ serial = udev_device_get_property_value(udevice, "ID_SERIAL");
+ if (serial != NULL && *serial != 0) {
+ disk->serial = g_strdup(serial);
+ disk->has_serial = true;
+ }
+ }
+
udev_unref(udev);
udev_device_unref(udevice);
#endif
- return;
+
+ if (strstr(syspath, "/devices/pci")) {
+ has_hwinf = build_guest_fsinfo_for_pci_dev(syspath, disk, errp);
+ } else if (strstr(syspath, "/virtio")) {
+ has_hwinf = build_guest_fsinfo_for_nonpci_virtio(syspath, disk, errp);
+ } else {
+ g_debug("Unsupported device type for '%s'", syspath);
+ has_hwinf = false;
+ }
+
+ if (has_hwinf || disk->has_dev || disk->has_serial) {
+ list->next = fs->disk;
+ fs->disk = list;
+ } else {
+ qapi_free_GuestDiskAddressList(list);
+ }
}
static void build_guest_fsinfo_for_device(char const *devpath,
@@ -2761,6 +2822,8 @@ GList *ga_command_blacklist_init(GList *blacklist)
blacklist = g_list_append(blacklist, g_strdup("guest-fstrim"));
#endif
+ blacklist = g_list_append(blacklist, g_strdup("guest-get-devices"));
+
return blacklist;
}
@@ -2981,3 +3044,10 @@ GuestOSInfo *qmp_guest_get_osinfo(Error **errp)
return info;
}
+
+GuestDeviceInfoList *qmp_guest_get_devices(Error **errp)
+{
+ error_setg(errp, QERR_UNSUPPORTED);
+
+ return NULL;
+}