Re: [Xen-devel] [PATCH] Prevent changing a memory size ofDomain-0 even if users make a careless mistake

[Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>]

I as the vendor cannot say it... (^^;)

 Kan

Fri, 04 Apr 2008 11:13:33 +0100, Keir Fraser wrote:

>I think it's fair to just say "Don't do that then, you idiot!". :-)
>
> -- Keir
>
>On 4/4/08 11:06, "Masaki Kanno" <kanno.masaki@xxxxxxxxxxxxxx> wrote:
>
>> Hi,
>> 
>> If users accidentally change a memory size of Domain-0 to very small
>> memory size by xm mem-set command, users will be not able to operate
>> Domain-0.  I think that Domain-0 is important for Xen, so I'd like to
>> prevent the accident by xm mem-set command.
>> 
>> This patch prevents changing the memory size of Domain-0 by xm mem-set
>> command if specified memory size is smaller than dom0-min-mem in
>> xend-config.sxp. 
>> 
>>  # cat /etc/xen/xend-config.sxp | grep "(dom0-min-mem"
>>  (dom0-min-mem 384)
>>  # xm list Domain-0
>>  Name                                        ID   Mem VCPUs      State
>> Time(s)
>>  Domain-0                                     0   941     2     r-----
>> 62.6
>>  # xm mem-set Domain-0 1
>>  Error: memory_dynamic_max cannot be changed for safety reasons
>>  Usage: xm mem-set <Domain> <Mem>
>>  
>>  Set the current memory usage for a domain.
>>  # xm list Domain-0
>>  Name                                        ID   Mem VCPUs      State
>> Time(s)
>>  Domain-0                                     0   941     2     r-----
>> 63.6
>> 
>> 
>> Signed-off-by: Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>
>> 
>> Best regards,
>>  Kan
>> 
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@xxxxxxxxxxxxxxxxxxx
>> http://lists.xensource.com/xen-devel
>
>
>
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