[libvirt] [PATCH v2] bhyve: add console support through nmdm device
Roman Bogorodskiy
bogorodskiy at gmail.com
Sun Mar 23 12:25:24 UTC 2014
nmdm is a FreeBSD driver which allows to create a pair of tty
devices one of which is passed to the guest and second is used
by the client.
This patch adds new 'nmdm' character device type. Its definition
looks this way:
<serial type='nmdm'>
<source master='/dev/nmdm0A' slave='/dev/nmdm0B'/>
</serial>
Master is passed to the hypervisior and slave is used for client
connection.
Also implement domainOpenConsole() for bhyve driver based on that.
---
src/bhyve/bhyve_command.c | 34 +++++++++++++++++++++++++
src/bhyve/bhyve_driver.c | 45 +++++++++++++++++++++++++++++++++
src/conf/domain_audit.c | 1 +
src/conf/domain_conf.c | 59 +++++++++++++++++++++++++++++++++++++++++++-
src/conf/domain_conf.h | 5 ++++
src/qemu/qemu_command.c | 1 +
src/qemu/qemu_monitor_json.c | 1 +
7 files changed, 145 insertions(+), 1 deletion(-)
diff --git a/src/bhyve/bhyve_command.c b/src/bhyve/bhyve_command.c
index 6d64c27..db5106c 100644
--- a/src/bhyve/bhyve_command.c
+++ b/src/bhyve/bhyve_command.c
@@ -184,6 +184,38 @@ bhyveBuildNetArgStr(const virDomainDef *def, virCommandPtr cmd)
}
static int
+bhyveBuildConsoleArgStr(const virDomainDef *def, virCommandPtr cmd)
+{
+
+ virDomainChrDefPtr chr = NULL;
+
+ if (!def->nserials)
+ return 0;
+
+ chr = def->serials[0];
+
+ if (chr->source.type != VIR_DOMAIN_CHR_TYPE_NMDM) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+ _("only nmdm console types are supported"));
+ return -1;
+ }
+
+ /* bhyve supports only two ports: com1 and com2 */
+ if (chr->target.port > 2) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+ _("only two serial ports are supported"));
+ return -1;
+ }
+
+ virCommandAddArgList(cmd, "-s", "31,lpc", NULL);
+ virCommandAddArg(cmd, "-l");
+ virCommandAddArgFormat(cmd, "com%d,%s",
+ chr->target.port + 1, chr->source.data.file.path);
+
+ return 0;
+}
+
+static int
bhyveBuildDiskArgStr(const virDomainDef *def, virCommandPtr cmd)
{
virDomainDiskDefPtr disk;
@@ -277,6 +309,8 @@ virBhyveProcessBuildBhyveCmd(bhyveConnPtr driver ATTRIBUTE_UNUSED,
goto error;
if (bhyveBuildDiskArgStr(vm->def, cmd) < 0)
goto error;
+ if (bhyveBuildConsoleArgStr(vm->def, cmd) < 0)
+ goto error;
virCommandAddArg(cmd, vm->def->name);
return cmd;
diff --git a/src/bhyve/bhyve_driver.c b/src/bhyve/bhyve_driver.c
index a524d35..9406bdb 100644
--- a/src/bhyve/bhyve_driver.c
+++ b/src/bhyve/bhyve_driver.c
@@ -22,6 +22,7 @@
#include <config.h>
+#include <fcntl.h>
#include <sys/utsname.h>
#include "virerror.h"
@@ -600,6 +601,49 @@ cleanup:
}
static int
+bhyveDomainOpenConsole(virDomainPtr dom,
+ const char *dev_name ATTRIBUTE_UNUSED,
+ virStreamPtr st,
+ unsigned int flags)
+{
+ virDomainObjPtr vm = NULL;
+ virDomainChrDefPtr chr = NULL;
+ int ret = -1;
+
+ virCheckFlags(0, -1);
+
+ if (!(vm = bhyveDomObjFromDomain(dom)))
+ goto cleanup;
+
+ if (virDomainOpenConsoleEnsureACL(dom->conn, vm->def) < 0)
+ goto cleanup;
+
+ if (!virDomainObjIsActive(vm)) {
+ virReportError(VIR_ERR_OPERATION_INVALID,
+ "%s", _("domain is not running"));
+ goto cleanup;
+ }
+
+ if (!vm->def->nserials) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ "%s", _("no console devices available"));
+ goto cleanup;
+ }
+
+ chr = vm->def->serials[0];
+
+ if (virFDStreamOpenPTY(st, chr->source.data.nmdm.slave,
+ 0, 0, O_RDWR) < 0)
+ goto cleanup;
+
+ ret = 0;
+
+cleanup:
+ virObjectUnlock(vm);
+ return ret;
+}
+
+static int
bhyveNodeGetCPUStats(virConnectPtr conn,
int cpuNum,
virNodeCPUStatsPtr params,
@@ -803,6 +847,7 @@ static virDriver bhyveDriver = {
.domainGetXMLDesc = bhyveDomainGetXMLDesc, /* 1.2.2 */
.domainIsActive = bhyveDomainIsActive, /* 1.2.2 */
.domainIsPersistent = bhyveDomainIsPersistent, /* 1.2.2 */
+ .domainOpenConsole = bhyveDomainOpenConsole, /* 1.2.3 */
.nodeGetCPUStats = bhyveNodeGetCPUStats, /* 1.2.2 */
.nodeGetMemoryStats = bhyveNodeGetMemoryStats, /* 1.2.2 */
.nodeGetInfo = bhyveNodeGetInfo, /* 1.2.3 */
diff --git a/src/conf/domain_audit.c b/src/conf/domain_audit.c
index 69632b0..cae891c 100644
--- a/src/conf/domain_audit.c
+++ b/src/conf/domain_audit.c
@@ -72,6 +72,7 @@ virDomainAuditChardevPath(virDomainChrSourceDefPtr chr)
case VIR_DOMAIN_CHR_TYPE_DEV:
case VIR_DOMAIN_CHR_TYPE_FILE:
case VIR_DOMAIN_CHR_TYPE_PIPE:
+ case VIR_DOMAIN_CHR_TYPE_NMDM:
return chr->data.file.path;
case VIR_DOMAIN_CHR_TYPE_UNIX:
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index b3592a0..a159c7c 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -442,7 +442,8 @@ VIR_ENUM_IMPL(virDomainChr, VIR_DOMAIN_CHR_TYPE_LAST,
"tcp",
"unix",
"spicevmc",
- "spiceport")
+ "spiceport",
+ "nmdm")
VIR_ENUM_IMPL(virDomainChrTcpProtocol, VIR_DOMAIN_CHR_TCP_PROTOCOL_LAST,
"raw",
@@ -1485,6 +1486,11 @@ virDomainChrSourceDefClear(virDomainChrSourceDefPtr def)
VIR_FREE(def->data.file.path);
break;
+ case VIR_DOMAIN_CHR_TYPE_NMDM:
+ VIR_FREE(def->data.nmdm.master);
+ VIR_FREE(def->data.nmdm.slave);
+ break;
+
case VIR_DOMAIN_CHR_TYPE_UDP:
VIR_FREE(def->data.udp.bindHost);
VIR_FREE(def->data.udp.bindService);
@@ -1553,6 +1559,14 @@ virDomainChrSourceDefCopy(virDomainChrSourceDefPtr dest,
if (VIR_STRDUP(dest->data.nix.path, src->data.nix.path) < 0)
return -1;
break;
+
+ case VIR_DOMAIN_CHR_TYPE_NMDM:
+ if (VIR_STRDUP(dest->data.nmdm.master, src->data.nmdm.master) < 0)
+ return -1;
+ if (VIR_STRDUP(dest->data.nmdm.slave, src->data.nmdm.slave) < 0)
+ return -1;
+
+ break;
}
dest->type = src->type;
@@ -1591,6 +1605,10 @@ virDomainChrSourceDefIsEqual(const virDomainChrSourceDef *src,
case VIR_DOMAIN_CHR_TYPE_PIPE:
return STREQ_NULLABLE(src->data.file.path, tgt->data.file.path);
break;
+ case VIR_DOMAIN_CHR_TYPE_NMDM:
+ return STREQ_NULLABLE(src->data.nmdm.master, tgt->data.nmdm.master) &&
+ STREQ_NULLABLE(src->data.nmdm.slave, tgt->data.nmdm.slave);
+ break;
case VIR_DOMAIN_CHR_TYPE_UDP:
return STREQ_NULLABLE(src->data.udp.bindHost, tgt->data.udp.bindHost) &&
STREQ_NULLABLE(src->data.udp.bindService, tgt->data.udp.bindService) &&
@@ -7241,6 +7259,8 @@ virDomainChrSourceDefParseXML(virDomainChrSourceDefPtr def,
char *mode = NULL;
char *protocol = NULL;
char *channel = NULL;
+ char *master = NULL;
+ char *slave = NULL;
int remaining = 0;
while (cur != NULL) {
@@ -7290,6 +7310,13 @@ virDomainChrSourceDefParseXML(virDomainChrSourceDefPtr def,
channel = virXMLPropString(cur, "channel");
break;
+ case VIR_DOMAIN_CHR_TYPE_NMDM:
+ if (!master)
+ master = virXMLPropString(cur, "master");
+ if (!slave)
+ slave = virXMLPropString(cur, "slave");
+ break;
+
case VIR_DOMAIN_CHR_TYPE_LAST:
case VIR_DOMAIN_CHR_TYPE_NULL:
case VIR_DOMAIN_CHR_TYPE_VC:
@@ -7346,6 +7373,25 @@ virDomainChrSourceDefParseXML(virDomainChrSourceDefPtr def,
path = NULL;
break;
+ case VIR_DOMAIN_CHR_TYPE_NMDM:
+ if (!master) {
+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("Missing master path attribute for nmdm device"));
+ goto error;
+ }
+
+ if (!slave) {
+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("Missing slave path attribute for nmdm device"));
+ goto error;
+ }
+
+ def->data.nmdm.master = master;
+ def->data.nmdm.slave = slave;
+ master = NULL;
+ slave = NULL;
+ break;
+
case VIR_DOMAIN_CHR_TYPE_TCP:
if (!mode || STREQ(mode, "connect")) {
if (!connectHost) {
@@ -7516,6 +7562,11 @@ virDomainChrDefNew(void)
* <target port="1"/>
* </serial>
*
+ * <serial type="nmdm">
+ * <source master="/dev/nmdm0A" slave="/dev/nmdm0B"/>
+ * <target port="1">
+ * </serial>
+ *
*/
static virDomainChrDefPtr
virDomainChrDefParseXML(xmlXPathContextPtr ctxt,
@@ -15801,6 +15852,12 @@ virDomainChrSourceDefFormat(virBufferPtr buf,
}
break;
+ case VIR_DOMAIN_CHR_TYPE_NMDM:
+ virBufferAsprintf(buf, "<source master='%s' slave='%s'/>\n",
+ def->data.nmdm.master,
+ def->data.nmdm.slave);
+ break;
+
case VIR_DOMAIN_CHR_TYPE_UDP:
if (def->data.udp.bindService &&
def->data.udp.bindHost) {
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index bf12414..a806570 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -1107,6 +1107,7 @@ enum virDomainChrType {
VIR_DOMAIN_CHR_TYPE_UNIX,
VIR_DOMAIN_CHR_TYPE_SPICEVMC,
VIR_DOMAIN_CHR_TYPE_SPICEPORT,
+ VIR_DOMAIN_CHR_TYPE_NMDM,
VIR_DOMAIN_CHR_TYPE_LAST
};
@@ -1139,6 +1140,10 @@ struct _virDomainChrSourceDef {
char *path;
} file; /* pty, file, pipe, or device */
struct {
+ char *master;
+ char *slave;
+ } nmdm;
+ struct {
char *host;
char *service;
bool listen;
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 2311d89..32d965e 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -6093,6 +6093,7 @@ qemuBuildChrArgStr(virDomainChrSourceDefPtr dev, const char *prefix)
case VIR_DOMAIN_CHR_TYPE_SPICEVMC:
case VIR_DOMAIN_CHR_TYPE_SPICEPORT:
+ case VIR_DOMAIN_CHR_TYPE_NMDM:
case VIR_DOMAIN_CHR_TYPE_LAST:
break;
}
diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index 7a6aac0..723222c 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -5348,6 +5348,7 @@ qemuMonitorJSONAttachCharDevCommand(const char *chrID,
case VIR_DOMAIN_CHR_TYPE_SPICEPORT:
case VIR_DOMAIN_CHR_TYPE_PIPE:
case VIR_DOMAIN_CHR_TYPE_STDIO:
+ case VIR_DOMAIN_CHR_TYPE_NMDM:
case VIR_DOMAIN_CHR_TYPE_LAST:
virReportError(VIR_ERR_OPERATION_FAILED,
_("Unsupported char device type '%d'"),
--
1.8.4.2
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