RE: [Xen-ia64-devel] [Patch] Add more dom0 operations

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

>-----Original Message-----
>From: Matt Chapman [mailto:matthewc@xxxxxx]
>Sent: Thursday, June 16, 2005 12:13 AM
>To: Tian, Kevin
>
>On Wed, Jun 15, 2005 at 05:49:57PM +0800, Tian, Kevin wrote:
>>
>> A simplified flow of control panel is:
>>
>> 1. DOM0_DO_CREATEDOMAIN to create housekeeping structures within
>HV
>> 2. DOM_MEM_OP to allocate configured memory to specified domain.
>>      Note: In this step, all required machine pages have already been
>> allocated and linked under page_list of that domain.
>> 3. DOM0_GET_MEMLIST to get active page list of domain to be
constructed
>>      Note: No newly allocation should happen within this hypercall,
>> which just aims to get list from step 2.
>> 4. Then CP will manipulate domain's memory based on info from step3.
>
>Yes, so far so good.  But the memory isn't mapped into the target
>domain's physical address space yet, so the target domain will die
>as soon as you start it.  Where do you do this?
>
>Matt

It's control panel's responsibility to update physical->machine and
machine->physical mapping for target domain. You can look at other part
of my last mail, DOM0_GET_MEMLIST actually give control panel that type
of info. Then control panel will call mmu_update to setup necessary
mapping as a necessary step before resuming to 1st instruction of target
domain. Then target domain back to alive. :)

Thanks,
Kevin

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