[libvirt] [PATCH] Add support for multiple serial ports into the Xen driver

Hi, this is the patch to add support for multiple serial ports to the libvirt Xen driver. It support both old style (serial = "pty") and new style (serial = [ "/dev/ttyS0", "/dev/ttyS1" ]) definition and tests for xml2sexpr, sexpr2xml and xmconfig have been added as well. Written and tested on RHEL-5 Xen dom0 and working as designed but the Xen version have to have patch for RHBZ #614004. Also, this patch is addressing issue described in RHBZ #670789. Michal Signed-off-by: Michal Novotny <minovotn(a)redhat.com&gt; --- src/xen/xend_internal.c | 73 ++++++++++- src/xen/xm_internal.c | 141 +++++++++++++++++--- .../sexpr2xml-fv-serial-dev-2-ports.sexpr | 1 + .../sexpr2xml-fv-serial-dev-2-ports.xml | 53 ++++++++ tests/sexpr2xmltest.c | 1 + .../test-fullvirt-serial-dev-2-ports.cfg | 25 ++++ .../test-fullvirt-serial-dev-2-ports.xml | 55 ++++++++ tests/xmconfigtest.c | 1 + .../xml2sexpr-fv-serial-dev-2-ports.sexpr | 1 + .../xml2sexpr-fv-serial-dev-2-ports.xml | 44 ++++++ tests/xml2sexprtest.c | 1 + 11 files changed, 370 insertions(+), 26 deletions(-) create mode 100644 tests/sexpr2xmldata/sexpr2xml-fv-serial-dev-2-ports.sexpr create mode 100644 tests/sexpr2xmldata/sexpr2xml-fv-serial-dev-2-ports.xml create mode 100644 tests/xmconfigdata/test-fullvirt-serial-dev-2-ports.cfg create mode 100644 tests/xmconfigdata/test-fullvirt-serial-dev-2-ports.xml create mode 100644 tests/xml2sexprdata/xml2sexpr-fv-serial-dev-2-ports.sexpr create mode 100644 tests/xml2sexprdata/xml2sexpr-fv-serial-dev-2-ports.xml diff --git a/src/xen/xend_internal.c b/src/xen/xend_internal.c index 44d5a22..493736e 100644 --- a/src/xen/xend_internal.c +++ b/src/xen/xend_internal.c @@ -1218,6 +1218,9 @@ xenDaemonParseSxprChar(const char *value, if (value[0] == '/') { def->source.type = VIR_DOMAIN_CHR_TYPE_DEV; + def->data.file.path = strdup(value); + if (!def->data.file.path) + goto error; } else { if ((tmp = strchr(value, ':')) != NULL) { *tmp = '\0'; @@ -2334,6 +2337,8 @@ xenDaemonParseSxpr(virConnectPtr conn, tty = xenStoreDomainGetConsolePath(conn, def->id); xenUnifiedUnlock(priv); if (hvm) { + + tmp = sexpr_node(root, "domain/image/hvm/serial"); if (tmp && STRNEQ(tmp, "none")) { virDomainChrDefPtr chr; @@ -2346,6 +2351,54 @@ xenDaemonParseSxpr(virConnectPtr conn, chr->deviceType = VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL; def->serials[def->nserials++] = chr; } + + + const struct sexpr *serial_root; + bool have_multiple_serials = false; + + serial_root = sexpr_lookup(root, "domain/image/hvm/serial"); + if (serial_root) { + const struct sexpr *cur, *node, *cur2; + + for (cur = serial_root; cur->kind == SEXPR_CONS; cur = cur->u.s.cdr) { + node = cur->u.s.car; + + for (cur2 = node; cur2->kind == SEXPR_CONS; cur2 = cur2->u.s.cdr) { + tmp = cur2->u.s.car->u.value; + + if (tmp && STRNEQ(tmp, "none")) { + virDomainChrDefPtr chr; + if ((chr = xenDaemonParseSxprChar(tmp, tty)) == NULL) + goto error; + if (VIR_REALLOC_N(def->serials, def->nserials+1) < 0) { + virDomainChrDefFree(chr); + goto no_memory; + } + chr->targetType = VIR_DOMAIN_CHR_TARGET_TYPE_SERIAL; + chr->target.port = def->nserials; + def->serials[def->nserials++] = chr; + } + have_multiple_serials = true; + } + } + } + + /* If no serial port has been defined (using the new-style definition) use the old way */ + if (!have_multiple_serials) { + tmp = sexpr_node(root, "domain/image/hvm/serial"); + if (tmp && STRNEQ(tmp, "none")) { + virDomainChrDefPtr chr; + if ((chr = xenDaemonParseSxprChar(tmp, tty)) == NULL) + goto error; + if (VIR_REALLOC_N(def->serials, def->nserials+1) < 0) { + virDomainChrDefFree(chr); + goto no_memory; + } + chr->targetType = VIR_DOMAIN_CHR_TARGET_TYPE_SERIAL; + def->serials[def->nserials++] = chr; + } + } + tmp = sexpr_node(root, "domain/image/hvm/parallel"); if (tmp && STRNEQ(tmp, "none")) { virDomainChrDefPtr chr; @@ -5958,10 +6011,22 @@ xenDaemonFormatSxpr(virConnectPtr conn, virBufferAddLit(&buf, "(parallel none)"); } if (def->serials) { - virBufferAddLit(&buf, "(serial "); - if (xenDaemonFormatSxprChr(def->serials[0], &buf) < 0) - goto error; - virBufferAddLit(&buf, ")"); + if (def->nserials > 1) { + virBufferAddLit(&buf, "(serial ("); + for (i = 0; i < def->nserials; i++) { + if (xenDaemonFormatSxprChr(def->serials[i], &buf) < 0) + goto error; + if (i < def->nserials - 1) + virBufferAddLit(&buf, " "); + } + virBufferAddLit(&buf, "))"); + } + else { + virBufferAddLit(&buf, "(serial "); + if (xenDaemonFormatSxprChr(def->serials[0], &buf) < 0) + goto error; + virBufferAddLit(&buf, ")"); + } } else { virBufferAddLit(&buf, "(serial none)"); } diff --git a/src/xen/xm_internal.c b/src/xen/xm_internal.c index bfb6698..f457d80 100644 --- a/src/xen/xm_internal.c +++ b/src/xen/xm_internal.c @@ -1432,20 +1432,54 @@ xenXMDomainConfigParse(virConnectPtr conn, virConfPtr conf) { chr = NULL; } - if (xenXMConfigGetString(conf, "serial", &str, NULL) < 0) - goto cleanup; - if (str && STRNEQ(str, "none") && - !(chr = xenDaemonParseSxprChar(str, NULL))) - goto cleanup; + /* Try to get the list of values to support multiple serial ports */ + list = virConfGetValue(conf, "serial"); + if (list && list->type == VIR_CONF_LIST) { + list = list->list; + while (list) { + char *port; + + if ((list->type != VIR_CONF_STRING) || (list->str == NULL)) { + xenXMError(VIR_ERR_INTERNAL_ERROR, + _("config value %s was malformed"), port); + goto cleanup; + } - if (chr) { - if (VIR_ALLOC_N(def->serials, 1) < 0) { - virDomainChrDefFree(chr); - goto no_memory; + port = list->str; + if (VIR_ALLOC(chr) < 0) + goto no_memory; + if (!(chr = xenDaemonParseSxprChar(port, NULL))) + goto cleanup; + + if (VIR_REALLOC_N(def->serials, def->nserials+1) < 0) + goto no_memory; + + chr->targetType = VIR_DOMAIN_CHR_TARGET_TYPE_SERIAL; + chr->target.port = def->nserials; + + def->serials[def->nserials++] = chr; + chr = NULL; + + list = list->next; + } + } + /* If domain is not using multiple serial ports we parse data old way */ + else { + if (xenXMConfigGetString(conf, "serial", &str, NULL) < 0) + goto cleanup; + if (str && STRNEQ(str, "none") && + !(chr = xenDaemonParseSxprChar(str, NULL))) + goto cleanup; + + if (chr) { + if (VIR_ALLOC_N(def->serials, 1) < 0) { + virDomainChrDefFree(chr); + goto no_memory; + } + chr->targetType = VIR_DOMAIN_CHR_TARGET_TYPE_SERIAL; + def->serials[0] = chr; + def->nserials++; } - chr->deviceType = VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL; - def->serials[0] = chr; - def->nserials++; } } else { if (!(def->console = xenDaemonParseSxprChar("pty", NULL))) @@ -2123,6 +2157,45 @@ cleanup: return -1; } +static int xenXMDomainConfigFormatSerial(virConfValuePtr list, + virDomainChrDefPtr serial) +{ + virBuffer buf = VIR_BUFFER_INITIALIZER; + virConfValuePtr val, tmp; + int ret; + + ret = xenDaemonFormatSxprChr(serial, &buf); + if (ret < 0) { + virReportOOMError(); + goto cleanup; + } + if (virBufferError(&buf)) { + virReportOOMError(); + goto cleanup; + } + + if (VIR_ALLOC(val) < 0) { + virReportOOMError(); + goto cleanup; + } + + val->type = VIR_CONF_STRING; + val->str = virBufferContentAndReset(&buf); + tmp = list->list; + while (tmp && tmp->next) + tmp = tmp->next; + if (tmp) + tmp->next = val; + else + list->list = val; + + return 0; + +cleanup: + virBufferFreeAndReset(&buf); + return -1; +} + static int xenXMDomainConfigFormatNet(virConnectPtr conn, virConfValuePtr list, virDomainNetDefPtr net, @@ -2685,17 +2758,41 @@ virConfPtr xenXMDomainConfigFormat(virConnectPtr conn, } if (def->nserials) { - virBuffer buf = VIR_BUFFER_INITIALIZER; - char *str; - int ret; + /* If there's a single serial port definition use the old approach not to break old configs */ + if (def->nserials == 1) { + virBuffer buf = VIR_BUFFER_INITIALIZER; + char *str; + int ret; + + ret = xenDaemonFormatSxprChr(def->serials[0], &buf); + str = virBufferContentAndReset(&buf); + if (ret == 0) + ret = xenXMConfigSetString(conf, "serial", str); + VIR_FREE(str); + if (ret < 0) + goto no_memory; + } + else { + virConfValuePtr serialVal = NULL; - ret = xenDaemonFormatSxprChr(def->serials[0], &buf); - str = virBufferContentAndReset(&buf); - if (ret == 0) - ret = xenXMConfigSetString(conf, "serial", str); - VIR_FREE(str); - if (ret < 0) - goto no_memory; + if (VIR_ALLOC(serialVal) < 0) + goto no_memory; + serialVal->type = VIR_CONF_LIST; + serialVal->list = NULL; + + for (i = 0; i < def->nserials; i++) { + if (xenXMDomainConfigFormatSerial(serialVal, def->serials[i]) < 0) + goto cleanup; + } + + if (serialVal->list != NULL) { + int ret = virConfSetValue(conf, "serial", serialVal); + serialVal = NULL; + if (ret < 0) + goto no_memory; + } + VIR_FREE(serialVal); + } } else { if (xenXMConfigSetString(conf, "serial", "none") < 0) goto no_memory; diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-serial-dev-2-ports.sexpr b/tests/sexpr2xmldata/sexpr2xml-fv-serial-dev-2-ports.sexpr new file mode 100644 index 0000000..e709eb0 --- /dev/null +++ b/tests/sexpr2xmldata/sexpr2xml-fv-serial-dev-2-ports.sexpr @@ -0,0 +1 @@ +(domain (domid 1)(name 'fvtest')(memory 400)(maxmem 400)(vcpus 1)(uuid 'b5d70dd275cdaca517769660b059d8ff')(on_poweroff 'destroy')(on_reboot 'restart')(on_crash 'restart')(image (hvm (kernel '/usr/lib/xen/boot/hvmloader')(vcpus 1)(boot c)(cdrom '/root/boot.iso')(acpi 1)(usb 1)(parallel none)(serial (/dev/ttyS0 /dev/ttyS1))(device_model '/usr/lib64/xen/bin/qemu-dm')(vnc 1)))(device (vbd (dev 'ioemu:hda')(uname 'file:/root/foo.img')(mode 'w')))(device (vif (mac '00:16:3e:1b:b1:47')(bridge 'xenbr0')(script 'vif-bridge')(type ioemu)))) diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-serial-dev-2-ports.xml b/tests/sexpr2xmldata/sexpr2xml-fv-serial-dev-2-ports.xml new file mode 100644 index 0000000..783cd67 --- /dev/null +++ b/tests/sexpr2xmldata/sexpr2xml-fv-serial-dev-2-ports.xml @@ -0,0 +1,53 @@ +<domain type='xen' id='1'> + <name>fvtest</name> + <uuid>b5d70dd2-75cd-aca5-1776-9660b059d8ff</uuid> + <memory>409600</memory> + <currentMemory>409600</currentMemory> + <vcpu>1</vcpu> + <os> + <type>hvm</type> + <loader>/usr/lib/xen/boot/hvmloader</loader> + <boot dev='hd'/> + </os> + <features> + <acpi/> + </features> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>restart</on_crash> + <devices> + <emulator>/usr/lib64/xen/bin/qemu-dm</emulator> + <disk type='file' device='disk'> + <driver name='file'/> + <source file='/root/foo.img'/> + <target dev='hda' bus='ide'/> + </disk> + <disk type='file' device='cdrom'> + <driver name='file'/> + <source file='/root/boot.iso'/> + <target dev='hdc' bus='ide'/> + <readonly/> + </disk> + <interface type='bridge'> + <mac address='00:16:3e:1b:b1:47'/> + <source bridge='xenbr0'/> + <script path='vif-bridge'/> + <target dev='vif1.0'/> + </interface> + <serial type='dev'> + <source path='/dev/ttyS0'/> + <target port='0'/> + </serial> + <serial type='dev'> + <source path='/dev/ttyS1'/> + <target port='1'/> + </serial> + <console type='dev'> + <source path='/dev/ttyS0'/> + <target port='0'/> + </console> + <input type='mouse' bus='ps2'/> + <graphics type='vnc' port='5901' autoport='no'/> + </devices> +</domain> diff --git a/tests/sexpr2xmltest.c b/tests/sexpr2xmltest.c index f100dd8..4b5766d 100644 --- a/tests/sexpr2xmltest.c +++ b/tests/sexpr2xmltest.c @@ -158,6 +158,7 @@ mymain(int argc, char **argv) DO_TEST("fv-serial-null", "fv-serial-null", 1); DO_TEST("fv-serial-file", "fv-serial-file", 1); + DO_TEST("fv-serial-dev-2-ports", "fv-serial-dev-2-ports", 1); DO_TEST("fv-serial-stdio", "fv-serial-stdio", 1); DO_TEST("fv-serial-pty", "fv-serial-pty", 1); DO_TEST("fv-serial-pipe", "fv-serial-pipe", 1); diff --git a/tests/xmconfigdata/test-fullvirt-serial-dev-2-ports.cfg b/tests/xmconfigdata/test-fullvirt-serial-dev-2-ports.cfg new file mode 100644 index 0000000..86e7998 --- /dev/null +++ b/tests/xmconfigdata/test-fullvirt-serial-dev-2-ports.cfg @@ -0,0 +1,25 @@ +name = "XenGuest2" +uuid = "c7a5fdb2-cdaf-9455-926a-d65c16db1809" +maxmem = 579 +memory = 394 +vcpus = 1 +builder = "hvm" +kernel = "/usr/lib/xen/boot/hvmloader" +boot = "d" +pae = 1 +acpi = 1 +apic = 1 +localtime = 0 +on_poweroff = "destroy" +on_reboot = "restart" +on_crash = "restart" +device_model = "/usr/lib/xen/bin/qemu-dm" +sdl = 0 +vnc = 1 +vncunused = 1 +vnclisten = "127.0.0.1" +vncpasswd = "123poi" +disk = [ "phy:/dev/HostVG/XenGuest2,hda,w", "file:/root/boot.iso,hdc:cdrom,r" ] +vif = [ "mac=00:16:3e:66:92:9c,bridge=xenbr1,script=vif-bridge,model=e1000,type=ioemu" ] +parallel = "none" +serial = [ "/dev/ttyS0", "/dev/ttyS1" ] diff --git a/tests/xmconfigdata/test-fullvirt-serial-dev-2-ports.xml b/tests/xmconfigdata/test-fullvirt-serial-dev-2-ports.xml new file mode 100644 index 0000000..e4d3f16 --- /dev/null +++ b/tests/xmconfigdata/test-fullvirt-serial-dev-2-ports.xml @@ -0,0 +1,55 @@ +<domain type='xen'> + <name>XenGuest2</name> + <uuid>c7a5fdb2-cdaf-9455-926a-d65c16db1809</uuid> + <memory>592896</memory> + <currentMemory>403456</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='xenfv'>hvm</type> + <loader>/usr/lib/xen/boot/hvmloader</loader> + <boot dev='cdrom'/> + </os> + <features> + <acpi/> + <apic/> + <pae/> + </features> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>restart</on_crash> + <devices> + <emulator>/usr/lib/xen/bin/qemu-dm</emulator> + <disk type='block' device='disk'> + <driver name='phy'/> + <source dev='/dev/HostVG/XenGuest2'/> + <target dev='hda' bus='ide'/> + </disk> + <disk type='file' device='cdrom'> + <driver name='file'/> + <source file='/root/boot.iso'/> + <target dev='hdc' bus='ide'/> + <readonly/> + </disk> + <interface type='bridge'> + <mac address='00:16:3e:66:92:9c'/> + <source bridge='xenbr1'/> + <script path='vif-bridge'/> + <model type='e1000'/> + </interface> + <serial type='dev'> + <source path='/dev/ttyS0'/> + <target port='0'/> + </serial> + <serial type='dev'> + <source path='/dev/ttyS1'/> + <target port='1'/> + </serial> + <console type='dev'> + <source path='/dev/ttyS0'/> + <target port='0'/> + </console> + <input type='mouse' bus='ps2'/> + <graphics type='vnc' port='-1' autoport='yes' listen='127.0.0.1' passwd='123poi'/> + </devices> +</domain> diff --git a/tests/xmconfigtest.c b/tests/xmconfigtest.c index ea00747..0de890c 100644 --- a/tests/xmconfigtest.c +++ b/tests/xmconfigtest.c @@ -218,6 +218,7 @@ mymain(int argc, char **argv) DO_TEST("fullvirt-usbtablet", 2); DO_TEST("fullvirt-usbmouse", 2); DO_TEST("fullvirt-serial-file", 2); + DO_TEST("fullvirt-serial-dev-2-ports", 2); DO_TEST("fullvirt-serial-null", 2); DO_TEST("fullvirt-serial-pipe", 2); DO_TEST("fullvirt-serial-pty", 2); diff --git a/tests/xml2sexprdata/xml2sexpr-fv-serial-dev-2-ports.sexpr b/tests/xml2sexprdata/xml2sexpr-fv-serial-dev-2-ports.sexpr new file mode 100644 index 0000000..2048159 --- /dev/null +++ b/tests/xml2sexprdata/xml2sexpr-fv-serial-dev-2-ports.sexpr @@ -0,0 +1 @@ +(vm (name 'fvtest')(memory 400)(maxmem 400)(vcpus 1)(uuid 'b5d70dd2-75cd-aca5-1776-9660b059d8bc')(on_poweroff 'destroy')(on_reboot 'restart')(on_crash 'restart')(image (hvm (kernel '/usr/lib/xen/boot/hvmloader')(vcpus 1)(boot c)(cdrom '/root/boot.iso')(acpi 1)(usb 1)(parallel none)(serial (/dev/ttyS0 /dev/ttyS1))(device_model '/usr/lib64/xen/bin/qemu-dm')(vnc 1)))(device (vbd (dev 'ioemu:hda')(uname 'file:/root/foo.img')(mode 'w')))(device (vif (mac '00:16:3e:1b:b1:47')(bridge 'xenbr0')(script 'vif-bridge')(model 'e1000')(type ioemu)))) \ No newline at end of file diff --git a/tests/xml2sexprdata/xml2sexpr-fv-serial-dev-2-ports.xml b/tests/xml2sexprdata/xml2sexpr-fv-serial-dev-2-ports.xml new file mode 100644 index 0000000..e5d1817 --- /dev/null +++ b/tests/xml2sexprdata/xml2sexpr-fv-serial-dev-2-ports.xml @@ -0,0 +1,44 @@ +<domain type='xen'> + <name>fvtest</name> + <uuid>b5d70dd275cdaca517769660b059d8bc</uuid> + <os> + <type>hvm</type> + <loader>/usr/lib/xen/boot/hvmloader</loader> + <boot dev='hd'/> + </os> + <memory>409600</memory> + <vcpu>1</vcpu> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>restart</on_crash> + <features> + <acpi/> + </features> + <devices> + <emulator>/usr/lib64/xen/bin/qemu-dm</emulator> + <interface type='bridge'> + <source bridge='xenbr0'/> + <mac address='00:16:3e:1b:b1:47'/> + <script path='vif-bridge'/> + <model type='e1000'/> + </interface> + <disk type='file' device='cdrom'> + <source file='/root/boot.iso'/> + <target dev='hdc'/> + <readonly/> + </disk> + <disk type='file'> + <source file='/root/foo.img'/> + <target dev='ioemu:hda'/> + </disk> + <serial type='dev'> + <source path='/dev/ttyS0'/> + <target port='0'/> + </serial> + <serial type='dev'> + <source path='/dev/ttyS1'/> + <target port='1'/> + </serial> + <graphics type='vnc' port='5917' keymap='ja'/> + </devices> +</domain> diff --git a/tests/xml2sexprtest.c b/tests/xml2sexprtest.c index 8a5d115..ed10dec 100644 --- a/tests/xml2sexprtest.c +++ b/tests/xml2sexprtest.c @@ -148,6 +148,7 @@ mymain(int argc, char **argv) DO_TEST("fv-serial-null", "fv-serial-null", "fvtest", 1); DO_TEST("fv-serial-file", "fv-serial-file", "fvtest", 1); + DO_TEST("fv-serial-dev-2-ports", "fv-serial-dev-2-ports", "fvtest", 1); DO_TEST("fv-serial-stdio", "fv-serial-stdio", "fvtest", 1); DO_TEST("fv-serial-pty", "fv-serial-pty", "fvtest", 1); DO_TEST("fv-serial-pipe", "fv-serial-pipe", "fvtest", 1); -- 1.7.3.2