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authorThomas Huth <thuth@redhat.com>2020-11-27 09:23:53 +0100
committerCornelia Huck <cohuck@redhat.com>2020-12-21 18:11:33 +0100
commit5b723a5d8df44b69b8ba350e643059c8fd889315 (patch)
tree61d5eb8ec2b024d1667e1e93c65418491e4c6160 /qga
parent99eaf137f4bc709c6a998a250d233a6944293941 (diff)
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qga/commands-posix: Send CCW address on s390x with the fsinfo data
We need the CCW address on the libvirt side to correctly identify the disk, so add this information to the GuestDiskAddress on s390x. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Michael Roth <michael.roth@amd.com> Message-Id: <20201127082353.448251-1-thuth@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'qga')
-rw-r--r--qga/commands-posix.c34
-rw-r--r--qga/qapi-schema.json20
2 files changed, 53 insertions, 1 deletions
diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index c089e38..5aa5eff 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -1029,6 +1029,38 @@ static bool build_guest_fsinfo_for_nonpci_virtio(char const *syspath,
return true;
}
+/*
+ * Store disk device info for CCW devices (s390x channel I/O devices).
+ * Returns true if information has been stored, or false for failure.
+ */
+static bool build_guest_fsinfo_for_ccw_dev(char const *syspath,
+ GuestDiskAddress *disk,
+ Error **errp)
+{
+ unsigned int cssid, ssid, subchno, devno;
+ char *p;
+
+ p = strstr(syspath, "/devices/css");
+ if (!p || sscanf(p + 12, "%*x/%x.%x.%x/%*x.%*x.%x/",
+ &cssid, &ssid, &subchno, &devno) < 4) {
+ g_debug("could not parse ccw device sysfs path: %s", syspath);
+ return false;
+ }
+
+ disk->has_ccw_address = true;
+ disk->ccw_address = g_new0(GuestCCWAddress, 1);
+ disk->ccw_address->cssid = cssid;
+ disk->ccw_address->ssid = ssid;
+ disk->ccw_address->subchno = subchno;
+ disk->ccw_address->devno = devno;
+
+ if (strstr(p, "/virtio")) {
+ build_guest_fsinfo_for_nonpci_virtio(syspath, disk, errp);
+ }
+
+ return true;
+}
+
/* Store disk device info specified by @sysfs into @fs */
static void build_guest_fsinfo_for_real_device(char const *syspath,
GuestFilesystemInfo *fs,
@@ -1081,6 +1113,8 @@ static void build_guest_fsinfo_for_real_device(char const *syspath,
if (strstr(syspath, "/devices/pci")) {
has_hwinf = build_guest_fsinfo_for_pci_dev(syspath, disk, errp);
+ } else if (strstr(syspath, "/devices/css")) {
+ has_hwinf = build_guest_fsinfo_for_ccw_dev(syspath, disk, errp);
} else if (strstr(syspath, "/virtio")) {
has_hwinf = build_guest_fsinfo_for_nonpci_virtio(syspath, disk, errp);
} else {
diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
index 3b3d1d0..9a82b7e 100644
--- a/qga/qapi-schema.json
+++ b/qga/qapi-schema.json
@@ -847,6 +847,22 @@
'slot': 'int', 'function': 'int'} }
##
+# @GuestCCWAddress:
+#
+# @cssid: channel subsystem image id
+# @ssid: subchannel set id
+# @subchno: subchannel number
+# @devno: device number
+#
+# Since: 6.0
+##
+{ 'struct': 'GuestCCWAddress',
+ 'data': {'cssid': 'int',
+ 'ssid': 'int',
+ 'subchno': 'int',
+ 'devno': 'int'} }
+
+##
# @GuestDiskAddress:
#
# @pci-controller: controller's PCI address (fields are set to -1 if invalid)
@@ -856,6 +872,7 @@
# @unit: unit id
# @serial: serial number (since: 3.1)
# @dev: device node (POSIX) or device UNC (Windows) (since: 3.1)
+# @ccw-address: CCW address on s390x (since: 6.0)
#
# Since: 2.2
##
@@ -863,7 +880,8 @@
'data': {'pci-controller': 'GuestPCIAddress',
'bus-type': 'GuestDiskBusType',
'bus': 'int', 'target': 'int', 'unit': 'int',
- '*serial': 'str', '*dev': 'str'} }
+ '*serial': 'str', '*dev': 'str',
+ '*ccw-address': 'GuestCCWAddress'} }
##
# @GuestDiskInfo: