Re: [Xen-devel] [Draft B] Boot ABI for HVM guests without a device-model

[Roger Pau Monnà <roger.pau@xxxxxxxxxx>]

El 26/08/15 a les 14.18, Andrew Cooper ha escrit:
> On 26/08/15 12:48, Roger Pau Monnà wrote: 
>> ELFNOTE(Xen, XEN_ELFNOTE_FEATURES,              .asciz, 
>> "writable_descriptor_tables|auto_translated_physmap|supervisor_mode_kernel")
>> ELFNOTE(Xen, XEN_ELFNOTE_SUPPORTED_FEATURES,    .long ((1 << 
>> XENFEAT_writable_page_tables) | \
>>                                                        (1 << 
>> XENFEAT_auto_translated_physmap) | \
>>                                                        (1 << 
>> XENFEAT_supervisor_mode_kernel) | \
>>                                                        (1 << 
>> XENFEAT_hvm_callback_vector))
> 
> Can we see about fixing the overloading of XENFEAT_supervisor_mode_kernel ?
> 
> IMO it should be relegated to history.  It was an old,
> not-fully-implemented pv feature (subsequently removed completely) which
> is not relevant to HVM guests.

Maybe we can get rid of both XEN_ELFNOTE_FEATURES and
XEN_ELFNOTE_SUPPORTED_FEATURES if the kernel only supports PVH?

Roger.


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