[Xen-devel] Xen and tickless Linux

[Thomas Pfeuffer <thomas.pfeuffer@xxxxxxxx>]

Hello,

I am trying to build a custom kernel 2.6.24 from ubuntu with xen dom0 
support.
Does Xen support a tickless system (CONFIG_TICK_ONESHOT=y) and the 
realtime features of this kernel (CONFIG_PREEMPT=Y instead of 
CONFIG_PREEMP_VOLUNTARY)?
Everytime, I set these options while configuring the kernel, the two 
settings are not regarded during kernel compilation.
I also tried to build the kernel 2.6.27 from OpenSuse 11. The behaviour 
is similar. If I choose xen-compatible=y in menu entry "Subarchitecure 
Type", then the tickless system and CONFIG_PREEMPT options can't be set 
any more.
So I wonder if Xen supports these features.


Thanks in advance,

Thomas

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