Xen devel - Apr 2010 - libxenlight and xl: missing features

Hi all,
this is a non comprehensive list of missing features in libxenlight
and\or xl:

- xen_platform_pci flag support in VM config files;

- relative paths support in VM config files;

- hap support in VM config files;

- -c option to xl create;

- remus;

- trigger command;

- tmem-* commands;

- sched-* commands;

- usb-* commands;

- scsi-* commands.


In general if you execute "xm help" and "xl help" any
command presents
in the former but not in the latter is a missing feature.

Few items are known to be "work in progress":

- network-* commands;

- network2-* commands;

- block-* commands;


Feel free to pick the missing command of you choice and write a simple
implementation for it :)

Cheers,

Stefano

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I''ll try to do the tmem-* commands after Xen Summit.
> -----Original Message-----
> From: Stefano Stabellini [mailto:stefano.stabellini@eu.citrix.com]
> Sent: Thursday, April 22, 2010 10:44 AM
> To: xen-devel@lists.xensource.com
> Subject: [Xen-devel] libxenlight and xl: missing features
> 
> Hi all,
> this is a non comprehensive list of missing features in libxenlight
> and\or xl:
> 
> - xen_platform_pci flag support in VM config files;
> 
> - relative paths support in VM config files;
> 
> - hap support in VM config files;
> 
> - -c option to xl create;
> 
> - remus;
> 
> - trigger command;
> 
> - tmem-* commands;
> 
> - sched-* commands;
> 
> - usb-* commands;
> 
> - scsi-* commands.
> 
> 
> In general if you execute "xm help" and "xl help" any
command presents
> in the former but not in the latter is a missing feature.
> 
> Few items are known to be "work in progress":
> 
> - network-* commands;
> 
> - network2-* commands;
> 
> - block-* commands;
> 
> 
> Feel free to pick the missing command of you choice and write a simple
> implementation for it :)
> 
> Cheers,
> 
> Stefano
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
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On Thu, 22 Apr 2010, Dan Magenheimer wrote:
> I''ll try to do the tmem-* commands after Xen Summit.
Thanks, that would be appreciated :)


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Hi Stefano,

Stefano Stabellini wrote:
> Hi all,
> this is a non comprehensive list of missing features in libxenlight
> and\or xl:
> 
...
> 
> - -c option to xl create;
> 
How about the following patch.
* I made it base changeset 21236:9a1d7caa2024.

Regards
Yu Zhiguo

--------------------------------------------------------------
Add option ''-c'' for ''xl create''
* -c Connect to the console after the domain is created.

Signed-off-by: Yu Zhiguo <yuzg@cn.fujitsu.com>

diff -r 9a1d7caa2024 -r 880b6a219189 tools/libxl/xl.c
--- a/tools/libxl/xl.c	Mon Apr 26 12:13:23 2010 +0100
+++ b/tools/libxl/xl.c	Fri Apr 30 17:58:25 2010 +0800
@@ -976,7 +976,7 @@
         libxl_domain_unpause(&ctx, domid);
 
     if (!daemonize)
-        return 0; /* caller gets success in parent */
+        return domid; /* caller gets success in parent */
 
     if (need_daemon) {
         char *fullname, *name;
@@ -1000,7 +1000,7 @@
                            "daemonizing child", child1, status);
                 return ERROR_FAIL;
             }
-            return 0; /* caller gets success in parent */
+            return domid; /* caller gets success in parent */
         }
 
         rc = libxl_ctx_postfork(&ctx);
@@ -1113,6 +1113,7 @@
         printf("Options:\n\n");
         printf("-h                     Print this help.\n");
         printf("-p                     Leave the domain paused after it is
created.\n");
+        printf("-c                     Connect to the console after the
domain is created.\n");
         printf("-d                     Enable debug messages.\n");
         printf("-e                     Do not wait in the background for
the death of the domain.\n");
     } else if(!strcmp(command, "list")) {
@@ -1937,7 +1938,7 @@
                        0 /* no config file, use incoming */,
                        "incoming migration stream", 1,
                        0, &migration_domname);
-    if (rc) {
+    if (rc < 0) {
         fprintf(stderr, "migration target: Domain creation failed"
                 " (code %d).\n", rc);
         exit(-rc);
@@ -2047,7 +2048,10 @@
     }
     rc = create_domain(debug, daemonize, config_file,
                        checkpoint_file, paused, -1, 0);
-    exit(-rc);
+    if (rc >= 0)
+        exit(0);
+    else
+        exit(-rc);
 }
 
 int main_migrate_receive(int argc, char **argv)
@@ -2291,14 +2295,18 @@
 int main_create(int argc, char **argv)
 {
     char *filename = NULL;
-    int paused = 0, debug = 0, daemonize = 1;
+    char dom[10]; /* long enough */
+    int paused = 0, debug = 0, daemonize = 1, console_autoconnect = 0;
     int opt, rc;
 
-    while ((opt = getopt(argc, argv, "hdep")) != -1) {
+    while ((opt = getopt(argc, argv, "hpcde")) != -1) {
         switch (opt) {
         case ''p'':
             paused = 1;
             break;
+        case ''c'':
+            console_autoconnect = 1;
+            break;
         case ''d'':
             debug = 1;
             break;
@@ -2322,7 +2330,14 @@
     filename = argv[optind];
     rc = create_domain(debug, daemonize, filename, NULL, paused,
                        -1, 0);
-    exit(-rc);
+    if (rc > 0) {
+        if (console_autoconnect) {
+            snprintf(dom, sizeof(dom), "%d", rc);
+            console(dom, 0);
+        }
+        exit(0);
+    } else
+        exit(-rc);
 }
 
 void button_press(char *p, char *b)




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On Fri, 30 Apr 2010, Yu Zhiguo wrote:
> Hi Stefano,
> 
> Stefano Stabellini wrote:
> > Hi all,
> > this is a non comprehensive list of missing features in libxenlight
> > and\or xl:
> > 
> ...
> > 
> > - -c option to xl create;
> > 
> 
> How about the following patch.
> * I made it base changeset 21236:9a1d7caa2024.
> 
it looks good to me, one less item on the list!

Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

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As I have not yet found the time to add the tmem-* commands
to xl, and since others are actively reimplementing all of
the xm commands, I would be grateful if someone would
add in the tmem commands to xl as well.  If there are any
difficulties or questions, I would be happy to help.

Thanks in advance,
Dan
> -----Original Message-----
> From: Stefano Stabellini [mailto:stefano.stabellini@eu.citrix.com]
> Sent: Friday, April 23, 2010 5:06 AM
> To: Dan Magenheimer
> Cc: Stefano Stabellini; xen-devel@lists.xensource.com
> Subject: RE: [Xen-devel] libxenlight and xl: missing features
> 
> On Thu, 22 Apr 2010, Dan Magenheimer wrote:
> > I''ll try to do the tmem-* commands after Xen Summit.
> 
> Thanks, that would be appreciated :)
> 
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Hi Dan,

On 05/13/2010 09:47 PM, Dan Magenheimer wrote:
> As I have not yet found the time to add the tmem-* commands
> to xl, and since others are actively reimplementing all of
> the xm commands, I would be grateful if someone would
> add in the tmem commands to xl as well.  If there are any
> difficulties or questions, I would be happy to help.
Yu and Me will try to do that. It may take some time for
us to accomplish those tmem-* commands and may ask for your
help when met difficulties.
> 
> Thanks in advance,
> Dan
> 
>> -----Original Message-----
>> From: Stefano Stabellini [mailto:stefano.stabellini@eu.citrix.com]
>> Sent: Friday, April 23, 2010 5:06 AM
>> To: Dan Magenheimer
>> Cc: Stefano Stabellini; xen-devel@lists.xensource.com
>> Subject: RE: [Xen-devel] libxenlight and xl: missing features
>>
>> On Thu, 22 Apr 2010, Dan Magenheimer wrote:
>>> I''ll try to do the tmem-* commands after Xen Summit.
>>
>> Thanks, that would be appreciated :)
>>
> 
> 

-- 
Regards
Yang Hongyang

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