Re: [Xen-devel] [PATCH] Pin vcpu for VMX domain

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 9 Feb 2006, at 08:46, Jiang, Yunhong wrote:

>         Attached is updated patch. It use migrate_timer() function and
> do __vmpclear on arcj_vmx_do_resume.
>         There is still one corner case. Currently the PIT timer is
> initialized on pit_hook. So when migrate the timer, it maybe possible
> that the pit timer is still not initialized. However, this situation 
> may
> happen also on vmx_relinquish_resources. So we plat to provide a patch
> to init the pit timer on hvm_setup_platform, which is called from
> vmx_do_launch.
Even vmx_do_launch may be too late, for vmx_relinquish_resources. 
Consider a VMX domain that is destroyed without ever running -- it will 
never call vmx_do_launch.
However, actually you will be okay because the timer structures are 
initialised to zeroes during domain creation. That is sufficient for 
stop_timer/kill_timer/migrate_timer to work properly, so long as they 
*never* execute concurrently with init_timer.
 -- Keir


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel