[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

[libvirt] [PATCHv3 2/2] S390: Enable SCLP Console in QEMU driver



From: "J.B. Joret" <jb linux vnet ibm com>

This is the QEMU backend code for the SCLP console support.
It includes SCLP capability detection, QEMU command line generation
and a test case.

Signed-off-by: J.B. Joret <jb linux vnet ibm com>
Signed-off-by: Viktor Mihajlovski <mihajlov linux vnet ibm com>
---
 src/qemu/qemu_capabilities.c                       |  3 ++
 src/qemu/qemu_capabilities.h                       |  1 +
 src/qemu/qemu_command.c                            | 59 ++++++++++++++++++++++
 .../qemuxml2argv-console-sclp.args                 |  8 +++
 .../qemuxml2argvdata/qemuxml2argv-console-sclp.xml | 24 +++++++++
 tests/qemuxml2argvtest.c                           |  3 ++
 6 files changed, 98 insertions(+)
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-console-sclp.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-console-sclp.xml

diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 01a1b98..7d32314 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -194,6 +194,8 @@ VIR_ENUM_IMPL(qemuCaps, QEMU_CAPS_LAST,
               "usb-redir.bootindex",
               "usb-host.bootindex",
               "blockdev-snapshot-sync",
+              "s390-sclp",
+
     );
 
 struct _qemuCaps {
@@ -1318,6 +1320,7 @@ struct qemuCapsStringFlags qemuCapsObjectTypes[] = {
     { "usb-hub", QEMU_CAPS_USB_HUB },
     { "ich9-ahci", QEMU_CAPS_ICH9_AHCI },
     { "virtio-blk-s390", QEMU_CAPS_VIRTIO_S390 },
+    { "sclpconsole", QEMU_CAPS_SCLP_S390 },
     { "lsi53c895a", QEMU_CAPS_SCSI_LSI },
     { "virtio-scsi-pci", QEMU_CAPS_VIRTIO_SCSI_PCI },
     { "spicevmc", QEMU_CAPS_DEVICE_SPICEVMC },
diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
index 3da8672..acbd16a 100644
--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
@@ -156,6 +156,7 @@ enum qemuCapsFlags {
     QEMU_CAPS_USB_REDIR_BOOTINDEX = 116, /* usb-redir.bootindex */
     QEMU_CAPS_USB_HOST_BOOTINDEX = 117, /* usb-host.bootindex */
     QEMU_CAPS_DISK_SNAPSHOT      = 118, /* blockdev-snapshot-sync command */
+    QEMU_CAPS_SCLP_S390          = 119, /* -device sclp* */
 
     QEMU_CAPS_LAST,                   /* this must always be the last item */
 };
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 9009bd2..6e2ece0 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -4096,6 +4096,37 @@ error:
     return NULL;
 }
 
+static char *qemuBuildSclpDevStr(virDomainChrDefPtr dev)
+{
+    virBuffer buf = VIR_BUFFER_INITIALIZER;
+    if (dev->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE) {
+        switch (dev->targetType) {
+        case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLP:
+            virBufferAddLit(&buf, "sclpconsole");
+            break;
+        case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLPLM:
+            virBufferAddLit(&buf, "sclplmconsole");
+            break;
+        }
+    } else {
+        virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                       _("Cannot use slcp with devices other than console"));
+        goto error;
+    }
+    virBufferAsprintf(&buf, ",chardev=char%s,id=%s",
+                      dev->info.alias, dev->info.alias);
+    if (virBufferError(&buf)) {
+        virReportOOMError();
+        goto error;
+    }
+
+    return virBufferContentAndReset(&buf);
+
+error:
+    virBufferFreeAndReset(&buf);
+    return NULL;
+}
+
 static char *qemuBuildSmbiosBiosStr(virSysinfoDefPtr def)
 {
     virBuffer buf = VIR_BUFFER_INITIALIZER;
@@ -6348,6 +6379,34 @@ qemuBuildCommandLine(virConnectPtr conn,
         char *devstr;
 
         switch (console->targetType) {
+        case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLP:
+        case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLPLM:
+            if (!qemuCapsGet(caps, QEMU_CAPS_DEVICE)) {
+                virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                               _("sclp console requires QEMU to support -device"));
+                goto error;
+            }
+            if (!qemuCapsGet(caps, QEMU_CAPS_SCLP_S390)) {
+                virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                               _("sclp console requires QEMU to support s390-sclp"));
+                goto error;
+            }
+
+            virCommandAddArg(cmd, "-chardev");
+            if (!(devstr = qemuBuildChrChardevStr(&console->source,
+                                                  console->info.alias,
+                                                  caps)))
+                goto error;
+            virCommandAddArg(cmd, devstr);
+            VIR_FREE(devstr);
+
+            virCommandAddArg(cmd, "-device");
+            if (!(devstr = qemuBuildSclpDevStr(console)))
+                goto error;
+            virCommandAddArg(cmd, devstr);
+            VIR_FREE(devstr);
+            break;
+
         case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_VIRTIO:
             if (!qemuCapsGet(caps, QEMU_CAPS_DEVICE)) {
                 virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-console-sclp.args b/tests/qemuxml2argvdata/qemuxml2argv-console-sclp.args
new file mode 100644
index 0000000..7dc1c49
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-console-sclp.args
@@ -0,0 +1,8 @@
+LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M \
+s390-virtio -m 214 -smp 1 -nographic -nodefconfig -nodefaults -chardev \
+socket,id=charmonitor,path=/tmp/test-monitor,server,nowait -mon \
+chardev=charmonitor,id=monitor,mode=readline -no-acpi -boot c \
+-usb -drive file=/dev/HostVG/QEMUGuest1,if=none,id=drive-virtio-disk0 -device \
+virtio-blk-s390,drive=drive-virtio-disk0,id=virtio-disk0 \
+-chardev pty,id=charconsole0 \
+-device sclpconsole,chardev=charconsole0,id=console0
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-console-sclp.xml b/tests/qemuxml2argvdata/qemuxml2argv-console-sclp.xml
new file mode 100644
index 0000000..7d28b55
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-console-sclp.xml
@@ -0,0 +1,24 @@
+<domain type='qemu'>
+  <name>QEMUGuest1</name>
+  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+  <memory>219100</memory>
+  <currentMemory>219100</currentMemory>
+  <os>
+    <type arch='s390x' machine='s390-virtio'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu</emulator>
+    <disk type='block' device='disk'>
+      <source dev='/dev/HostVG/QEMUGuest1'/>
+      <target dev='hda' bus='virtio'/>
+    </disk>
+    <console type='pty'>
+      <target type='sclp'/>
+    </console>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index bb233ed..da75ed0 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -677,6 +677,9 @@ mymain(void)
     DO_TEST("console-virtio-s390",
             QEMU_CAPS_DEVICE, QEMU_CAPS_CHARDEV, QEMU_CAPS_NODEFCONFIG,
             QEMU_CAPS_DRIVE,  QEMU_CAPS_VIRTIO_S390);
+    DO_TEST("console-sclp",
+            QEMU_CAPS_DEVICE, QEMU_CAPS_CHARDEV, QEMU_CAPS_NODEFCONFIG,
+            QEMU_CAPS_DRIVE, QEMU_CAPS_VIRTIO_S390, QEMU_CAPS_SCLP_S390);
     DO_TEST("channel-spicevmc",
             QEMU_CAPS_DEVICE, QEMU_CAPS_NODEFCONFIG,
             QEMU_CAPS_SPICE, QEMU_CAPS_CHARDEV_SPICEVMC);
-- 
1.7.12.4


[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]