Xen devel - Sep 2006 - 32E (64bit) VMX keyboard is out of control, if given an addition ''hde''

Hi,

This issue only happens on my IA32E VMX domain. IA32 VMX domain is okay.

I am trying VBD disk in IA32E VMX domain. I used following disk configuration to
create an IA32E VMX domain.
	disk = [ ''file:/mnt/disk1.img,hda,w'',
''file:/mnt/disk2.img,hde,w'' ]

After creating VMX, its keyboard can not be used properly. For example, if
pressing ''Backspace'', it shows ''m''; if
pressing ''Enter'', it just said Unknown key pressed.

If I didn''t set ''hde'', or just change
''hde'' to ''hdd'', everything is okay. Could
anyone help to reproduce and explain this strange issue?

Best Regards,
Yongkang (Kangkang) 永康

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>>> "You, Yongkang" <yongkang.you@intel.com> 12.09.06
09:53 >>>
>Hi,
>
>This issue only happens on my IA32E VMX domain. IA32 VMX domain is okay.
>
>I am trying VBD disk in IA32E VMX domain. I used following disk
configuration to create an IA32E VMX domain.
>	disk = [ ''file:/mnt/disk1.img,hda,w'',
''file:/mnt/disk2.img,hde,w'' ]
>
>After creating VMX, its keyboard can not be used properly. For example, if
pressing ''Backspace'', it shows ''m''; if
pressing ''Enter'', it just said
>Unknown key pressed.
What OS are you running as the particular HVM guest?

Jan

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On Tue, 12 Sep 2006 15:53:34 +0800, You, Yongkang wrote:
> Hi,
> 
> This issue only happens on my IA32E VMX domain. IA32 VMX domain is okay.
> 
> I am trying VBD disk in IA32E VMX domain. I used following disk
> configuration to create an IA32E VMX domain.
> 	disk = [ ''file:/mnt/disk1.img,hda,w'',
''file:/mnt/disk2.img,hde,w'' ]
>
I don''t think hde is a valid disk drive for HVM.  QEMU only emulates a
standard IDE controller which would only allow 4 disks (hda, hdb, hdc,
hdd).  AFAIK, Xen has not added an additional IDE controller.

Sounds like we''re not doing appropriate error checking somewhere...

Regards,

Anthony Liguori
> After creating VMX, its keyboard can not be used properly. For example, if
> pressing ''Backspace'', it shows ''m''; if
pressing ''Enter'', it just said
> Unknown key pressed.
> 
> If I didn''t set ''hde'', or just change
''hde'' to ''hdd'', everything is okay.
> Could anyone help to reproduce and explain this strange issue?
> 
> Best Regards,
> Yongkang (Kangkang)


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On Tue, 12 Sep 2006 09:01:16 -0500, Anthony Liguori wrote:
> On Tue, 12 Sep 2006 15:53:34 +0800, You, Yongkang wrote:
> 
> I don''t think hde is a valid disk drive for HVM.  QEMU only
emulates a
> standard IDE controller which would only allow 4 disks (hda, hdb, hdc,
> hdd).  AFAIK, Xen has not added an additional IDE controller.
Sorry ''bout the noise.  Still catching up.  Didn''t realize hde
could be
used for paravirt devices.

Regards,

Anthony Liguori
> Sounds like we''re not doing appropriate error checking
somewhere...
> 
> Regards,
> 
> Anthony Liguori
> 
>> [quoted text muted]


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Hi,

I can reproduce this problem and fixed it.
The following patches probably fixed this problem.

Hiromichi Ito

Signed-off-by: Hiromichi Ito <ito@begi.net>

diff -r 7d4def53936c tools/ioemu/xenstore.c
--- a/tools/ioemu/xenstore.c    Tue Sep 12 16:33:33 2006 +0100
+++ b/tools/ioemu/xenstore.c    Wed Sep 13 14:34:32 2006 +0900
@@ -100,7 +100,7 @@ void xenstore_parse_domain_config(int do
         if (strncmp(dev, "hd", 2) || strlen(dev) != 3)
             continue;
         hd_index = dev[2] - ''a'';
-       if (hd_index > MAX_DISKS)
+       if (hd_index > MAX_DISKS - 1)
             continue;
         /* read the type of the device */
         if (pasprintf(&buf, "%s/device/vbd/%s/device-type", path,
e
[i]) == -1)


On 2006/09/12, at 16:53, You, Yongkang wrote:
> Hi,
>
> This issue only happens on my IA32E VMX domain. IA32 VMX domain is  
> okay.
>
> I am trying VBD disk in IA32E VMX domain. I used following disk  
> configuration to create an IA32E VMX domain.
> 	disk = [ ''file:/mnt/disk1.img,hda,w'',
''file:/mnt/disk2.img,hde,w'' ]
>
> After creating VMX, its keyboard can not be used properly. For  
> example, if pressing ''Backspace'', it shows
''m''; if pressing
> ''Enter'', it just said Unknown key pressed.
>
> If I didn''t set ''hde'', or just change
''hde'' to ''hdd'', everything is
> okay. Could anyone help to reproduce and explain this strange issue?
>
> Best Regards,
> Yongkang (Kangkang) 永康
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel

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Hi,

I have tried that patch. It fixes the issue in 32E VMX. With it, keyboard is
normal when I use "hde+" disk configuration for VMX. And after insmod
VBD modules, that hde disk can work. Will that patch go into xen-unstable? :)

A little puzzled why it only influent 32E VMX. 

Also thanks to Anthony, the ''xvda'' more likes a clear way to
use VBD in VMX. :)

Best Regards,
Yongkang (Kangkang) 永康
>-----Original Message-----
>From: Hiromichi Itou [mailto:ito@begi.net]
>Sent: 2006年9月13日 13:42
>To: xen-devel
>Cc: You, Yongkang
>Subject: Re: [Xen-devel] 32E (64bit) VMX keyboard is out of control, if
given
>an addition ''hde''
>
>Hi,
>
>I can reproduce this problem and fixed it.
>The following patches probably fixed this problem.
>
>Hiromichi Ito
>
>Signed-off-by: Hiromichi Ito <ito@begi.net>
>
>diff -r 7d4def53936c tools/ioemu/xenstore.c
>--- a/tools/ioemu/xenstore.c    Tue Sep 12 16:33:33 2006 +0100
>+++ b/tools/ioemu/xenstore.c    Wed Sep 13 14:34:32 2006 +0900
>@@ -100,7 +100,7 @@ void xenstore_parse_domain_config(int do
>         if (strncmp(dev, "hd", 2) || strlen(dev) != 3)
>             continue;
>         hd_index = dev[2] - ''a'';
>-       if (hd_index > MAX_DISKS)
>+       if (hd_index > MAX_DISKS - 1)
>             continue;
>         /* read the type of the device */
>         if (pasprintf(&buf, "%s/device/vbd/%s/device-type",
path, e
>[i]) == -1)
>
>
>On 2006/09/12, at 16:53, You, Yongkang wrote:
>
>> Hi,
>>
>> This issue only happens on my IA32E VMX domain. IA32 VMX domain is
>> okay.
>>
>> I am trying VBD disk in IA32E VMX domain. I used following disk
>> configuration to create an IA32E VMX domain.
>> 	disk = [ ''file:/mnt/disk1.img,hda,w'',
''file:/mnt/disk2.img,hde,w'' ]
>>
>> After creating VMX, its keyboard can not be used properly. For
>> example, if pressing ''Backspace'', it shows
''m''; if pressing
>> ''Enter'', it just said Unknown key pressed.
>>
>> If I didn''t set ''hde'', or just change
''hde'' to ''hdd'', everything is
>> okay. Could anyone help to reproduce and explain this strange issue?
>>
>> Best Regards,
>> Yongkang (Kangkang) 永康
>>
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@lists.xensource.com
>> http://lists.xensource.com/xen-devel
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