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SubjectRe: [PATCH v5 1/3] x86, mpx: add documentation on Intel MPX
On 02/27/2014 05:44 AM, H. Peter Anvin wrote:
> On 02/26/2014 11:17 AM, Dave Hansen wrote:
>> On 02/23/2014 05:27 AM, Qiaowei Ren wrote:
>>> +Bounds Directory (BD) and Bounds Tables (BT) are stored in
>>> +application memory and are allocated by the application (in case
>>> +of kernel use, the structures will be in kernel memory). The
>>> +bound directory and each instance of bound table are in contiguous
>>> +linear memory.
>> Hi Qiaowei,
>> Does this mean that if userspace decided to map something in the way of
>> the bounds tables that it would break MPX?
>> Also, in the description, could we s/linear/virtual/? Linear seems to
>> be the term that Intel likes to use in its documents, but we almost
>> universally call them virtual addresses in the kernel.
> It might be useful to clarify, though, just so noone gets confused with
> effective addresses (offsets).
Ok. Some words here come from some MPX public documents. I need to go
through more carefully.


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