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

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 01.08.14 at 09:10, <tiejun.chen@xxxxxxxxx> wrote:
> On 2014/8/1 14:51, Jan Beulich wrote:
>>>>> On 31.07.14 at 11:45, <tiejun.chen@xxxxxxxxx> 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).

Jan


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