Re: [Xen-devel] [PATCH v3] docs: add PVH specification

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 20.09.14 at 21:15, <konrad.wilk@xxxxxxxxxx> wrote:
> On Thu, Sep 18, 2014 at 07:19:24PM +0200, Roger Pau Monne wrote:
>> +All the segments selectors are set with a flat base at zero.
>> +
>> +The `cs` segment selector attributes are set to 0x0a09b, which describes an
>> +executable and readable code segment only accessible by the most privileged
>> +level. The segment is also set as a 64-bit code segment (`L` flag set, `D` 
>> flag
>> +unset).
>> +
>> +The remaining segment selectors (`ds`, `ss`, `es`, `fs` and `gs`) are all 
>> set
>> +to the same values. The attributes are set to 0x0c093, which implies a read 
>> and
>> +write data segment only accessible by the most privileged level.
> 
> I think the SS, ES, FS, GS are set to the null selector in 64-bit mode.

Right - with their hidden portions set to what is being said in
Roger's description.

Jan


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