@@ -111,6 +111,12 @@ Configures the default script used by Remus to setup network buffering.
Default: C</etc/xen/scripts/remus-netbuf-setup>
+=item B<colo.default.proxyscript="PATH">
+
+Configures the default script used by COLO to setup colo-proxy.
+
+Default: C</etc/xen/scripts/colo-proxy-setup>
+
=item B<output_format="json|sxp">
Configures the default output format used by xl when printing "machine
@@ -458,8 +458,6 @@ Remus support in xl is still in experimental (proof-of-concept) phase.
Disk replication support is limited to DRBD disks.
COLO support in xl is still in experimental (proof-of-concept) phase.
-There is no support for network, so the guest will confuse its network
-peers at the moment.
=back
@@ -483,6 +481,11 @@ and it's used by secondary.
=item B<hidden-disk> :Primary's modified contents will be buffered in this
disk, and it's used by secondary.
+(b) An example for COLO network configuration: vif =[ '...,forwarddev=xxx,...']
+
+=item B<forwarddev> :Forward devices for primary and secondary, there are
+directly connected.
+
=back
B<OPTIONS>
@@ -3378,6 +3378,11 @@ void libxl__device_nic_add(libxl__egc *egc, uint32_t domid,
flexarray_append(back, nic->ifname);
}
+ if (nic->coloft_forwarddev) {
+ flexarray_append(back, "forwarddev");
+ flexarray_append(back, nic->coloft_forwarddev);
+ }
+
flexarray_append(back, "mac");
flexarray_append(back,GCSPRINTF(LIBXL_MAC_FMT, LIBXL_MAC_BYTES(nic->mac)));
if (nic->ip) {
@@ -3500,6 +3505,7 @@ static int libxl__device_nic_from_xs_be(libxl__gc *gc,
nic->ip = READ_BACKEND(NOGC, "ip");
nic->bridge = READ_BACKEND(NOGC, "bridge");
nic->script = READ_BACKEND(NOGC, "script");
+ nic->coloft_forwarddev = READ_BACKEND(NOGC, "forwarddev");
/* vif_ioemu nics use the same xenstore entries as vif interfaces */
tmp = READ_BACKEND(gc, "type");
@@ -233,6 +233,11 @@ void libxl__colo_restore_setup(libxl__egc *egc,
crcs->crs = crs;
crs->qdisk_setuped = false;
crs->qdisk_used = false;
+ if (dcs->colo_proxy_script)
+ crs->colo_proxy_script = libxl__strdup(gc, dcs->colo_proxy_script);
+ else
+ crs->colo_proxy_script = GCSPRINTF("%s/colo-proxy-setup",
+ libxl__xen_script_dir_path());
/* setup dsps */
crcs->dsps.ao = ao;
@@ -1690,6 +1690,7 @@ static void domain_create_cb(libxl__egc *egc,
static int do_domain_create(libxl_ctx *ctx, libxl_domain_config *d_config,
uint32_t *domid, int restore_fd, int send_back_fd,
const libxl_domain_restore_params *params,
+ const char *colo_proxy_script,
const libxl_asyncop_how *ao_how,
const libxl_asyncprogress_how *aop_console_how)
{
@@ -1713,6 +1714,7 @@ static int do_domain_create(libxl_ctx *ctx, libxl_domain_config *d_config,
}
cdcs->dcs.callback = domain_create_cb;
cdcs->dcs.domid_soft_reset = INVALID_DOMID;
+ cdcs->dcs.colo_proxy_script = colo_proxy_script;
libxl__ao_progress_gethow(&cdcs->dcs.aop_console_how, aop_console_how);
cdcs->domid_out = domid;
@@ -1900,7 +1902,7 @@ int libxl_domain_create_new(libxl_ctx *ctx, libxl_domain_config *d_config,
const libxl_asyncprogress_how *aop_console_how)
{
unset_disk_colo_restore(d_config);
- return do_domain_create(ctx, d_config, domid, -1, -1, NULL,
+ return do_domain_create(ctx, d_config, domid, -1, -1, NULL, NULL,
ao_how, aop_console_how);
}
@@ -1911,14 +1913,17 @@ int libxl_domain_create_restore(libxl_ctx *ctx, libxl_domain_config *d_config,
const libxl_asyncop_how *ao_how,
const libxl_asyncprogress_how *aop_console_how)
{
+ char *colo_proxy_script = NULL;
+
if (params->checkpointed_stream == LIBXL_CHECKPOINTED_STREAM_COLO) {
+ colo_proxy_script = params->colo_proxy_script;
set_disk_colo_restore(d_config);
} else {
unset_disk_colo_restore(d_config);
}
return do_domain_create(ctx, d_config, domid, restore_fd, send_back_fd,
- params, ao_how, aop_console_how);
+ params, colo_proxy_script, ao_how, aop_console_how);
}
int libxl_domain_soft_reset(libxl_ctx *ctx,
@@ -386,6 +386,7 @@ libxl_domain_create_info = Struct("domain_create_info",[
libxl_domain_restore_params = Struct("domain_restore_params", [
("checkpointed_stream", integer),
("stream_version", uint32, {'init_val': '1'}),
+ ("colo_proxy_script", string),
])
libxl_domain_sched_params = Struct("domain_sched_params",[
@@ -45,6 +45,7 @@ char *default_bridge = NULL;
char *default_gatewaydev = NULL;
char *default_vifbackend = NULL;
char *default_remus_netbufscript = NULL;
+char *default_colo_proxy_script = NULL;
enum output_format default_output_format = OUTPUT_FORMAT_JSON;
int claim_mode = 1;
bool progress_use_cr = 0;
@@ -179,6 +180,8 @@ static void parse_global_config(const char *configfile,
xlu_cfg_replace_string (config, "remus.default.netbufscript",
&default_remus_netbufscript, 0);
+ xlu_cfg_replace_string (config, "colo.default.proxyscript",
+ &default_colo_proxy_script, 0);
xlu_cfg_destroy(config);
}
@@ -194,6 +194,7 @@ extern char *default_bridge;
extern char *default_gatewaydev;
extern char *default_vifbackend;
extern char *default_remus_netbufscript;
+extern char *default_colo_proxy_script;
extern char *blkdev_start;
enum output_format {
@@ -158,6 +158,7 @@ struct domain_create {
const char *config_file;
char *extra_config; /* extra config string */
const char *restore_file;
+ char *colo_proxy_script;
int migrate_fd; /* -1 means none */
int send_back_fd; /* -1 means none */
char **migration_domname_r; /* from malloc */
@@ -1053,6 +1054,8 @@ static int parse_nic_config(libxl_device_nic *nic, XLU_Config **config, char *to
replace_string(&nic->model, oparg);
} else if (MATCH_OPTION("rate", token, oparg)) {
parse_vif_rate(config, oparg, nic);
+ } else if (MATCH_OPTION("forwarddev", token, oparg)) {
+ replace_string(&nic->coloft_forwarddev, oparg);
} else if (MATCH_OPTION("accel", token, oparg)) {
fprintf(stderr, "the accel parameter for vifs is currently not supported\n");
} else {
@@ -3001,6 +3004,7 @@ start:
params.checkpointed_stream = dom_info->checkpointed_stream;
params.stream_version =
(hdr.mandatory_flags & XL_MANDATORY_FLAG_STREAMv2) ? 2 : 1;
+ params.colo_proxy_script = dom_info->colo_proxy_script;
ret = libxl_domain_create_restore(ctx, &d_config,
&domid, restore_fd,
@@ -4733,7 +4737,8 @@ static void migrate_domain(uint32_t domid, const char *rune, int debug,
static void migrate_receive(int debug, int daemonize, int monitor,
int send_fd, int recv_fd,
- libxl_checkpointed_stream checkpointed)
+ libxl_checkpointed_stream checkpointed,
+ char *colo_proxy_script)
{
uint32_t domid;
int rc, rc2;
@@ -4762,6 +4767,7 @@ static void migrate_receive(int debug, int daemonize, int monitor,
dom_info.send_back_fd = send_fd;
dom_info.migration_domname_r = &migration_domname;
dom_info.checkpointed_stream = checkpointed;
+ dom_info.colo_proxy_script = colo_proxy_script;
rc = create_domain(&dom_info);
if (rc < 0) {
@@ -4955,8 +4961,10 @@ int main_migrate_receive(int argc, char **argv)
int debug = 0, daemonize = 1, monitor = 1;
libxl_checkpointed_stream checkpointed = LIBXL_CHECKPOINTED_STREAM_NONE;
int opt;
+ char *script = NULL;
static struct option opts[] = {
{"colo", 0, 0, 0x100},
+ {"coloft-script", 1, 0, 0x200},
COMMON_LONG_OPTS
};
@@ -4977,6 +4985,9 @@ int main_migrate_receive(int argc, char **argv)
case 0x100:
checkpointed = LIBXL_CHECKPOINTED_STREAM_COLO;
break;
+ case 0x200:
+ script = optarg;
+ break;
}
if (argc-optind != 0) {
@@ -4985,7 +4996,7 @@ int main_migrate_receive(int argc, char **argv)
}
migrate_receive(debug, daemonize, monitor,
STDOUT_FILENO, STDIN_FILENO,
- checkpointed);
+ checkpointed, script);
return 0;
}
@@ -8395,8 +8406,10 @@ int main_remus(int argc, char **argv)
r_info.interval = 200;
if (libxl_defbool_val(r_info.colo)) {
- if (r_info.interval || libxl_defbool_val(r_info.blackhole)) {
- perror("Option -c conflicts with -i or -b");
+ if (r_info.interval || libxl_defbool_val(r_info.blackhole) ||
+ !libxl_defbool_is_default(r_info.netbuf) ||
+ !libxl_defbool_is_default(r_info.diskbuf)) {
+ perror("option -c is conflict with -i, -d, -n or -b");
exit(-1);
}
@@ -8407,8 +8420,12 @@ int main_remus(int argc, char **argv)
}
}
- if (!r_info.netbufscript)
- r_info.netbufscript = default_remus_netbufscript;
+ if (!r_info.netbufscript) {
+ if (libxl_defbool_val(r_info.colo))
+ r_info.netbufscript = default_colo_proxy_script;
+ else
+ r_info.netbufscript = default_remus_netbufscript;
+ }
if (libxl_defbool_val(r_info.blackhole)) {
send_fd = open("/dev/null", O_RDWR, 0644);
@@ -8421,10 +8438,19 @@ int main_remus(int argc, char **argv)
if (!ssh_command[0]) {
rune = host;
} else {
- xasprintf(&rune, "exec %s %s xl migrate-receive %s %s",
- ssh_command, host,
- libxl_defbool_val(r_info.colo) ? "-c" : "-r",
- daemonize ? "" : " -e");
+ if (!libxl_defbool_val(r_info.colo)) {
+ xasprintf(&rune, "exec %s %s xl migrate-receive %s %s",
+ ssh_command, host,
+ "-r",
+ daemonize ? "" : " -e");
+ } else {
+ xasprintf(&rune, "exec %s %s xl migrate-receive %s %s %s %s",
+ ssh_command, host,
+ "--colo",
+ r_info.netbufscript ? "--coloft-script" : "",
+ r_info.netbufscript ? r_info.netbufscript : "",
+ daemonize ? "" : " -e");
+ }
}
save_domain_core_begin(domid, NULL, &config_data, &config_len);