Re: [v6][PATCH 2/2] xen:vtd: missing RMRR mapping while share EPT

["Chen, Tiejun" <tiejun.chen@intel.com>]

On 2014/8/1 15:21, Jan Beulich wrote:
>>>> On 01.08.14 at 09:10, <tiejun.chen@intel.com> wrote:
>> On 2014/8/1 14:51, Jan Beulich wrote:
>>>>>> On 31.07.14 at 11:45, <tiejun.chen@intel.com> wrote:
>>>> Additionally, I'm trying to figure out that solution. As I mentioned
>>>> previously, I think we can reserve all RMRR once when a guest call
>>>> XENMEM_machine_memory_map to create its own memory. What about this
>>>> idea? Or other better suggestions?
>>>
>>> I don't think any HVM guest would ever call this, even more so that
>>> the call is restricted to Dom0. The reservation needs to be done
>>
>> Thanks for your correction. Actually I'm also afraid I may not find a
>> correct place where I want to go indeed since I'm not familiar this
>> process.
>>
>>> when guest memory gets populated (and its E820 constructed).
>>
>> Could you hint me where this action is covered?
>
> Memory population happens in tools/libxc/xc_hvm_build.c:setup_guest(),
> the E820 for the guest gets constructed in hvmloader (just grep for
> [eE]820).
>

Thanks for your information.

With further looking into this, instead of XENMEM_machine_memory_map, I 
think we can go XENMEM_set_memory_map path, right?

Thanks
Tiejun