[Lguest] [PATCH RFC/RFB] x86_64, i386: interrupt dispatch changes

[Avi Kivity]

H. Peter Anvin wrote:
>
>> I suspect we could get it down to three bytes, by sharing the last 
>> byte of the four-byte call sequence with the first byte of the next:
>>
>>  66 e8 ff 66 e8 fc 66 e8 f9 66 e8 f6 ...
>>
>> Every three bytes a new stub begins; it's a four-byte call to offset 
>> 0x6703 relative to the beginning of the first stub.
>>
>> Can anyone better 24 bits/stub?
>
> On the entirely silly level...
>
> CC xx

Nice.  Can actually go to zero, by pointing the IDT at (unmapped_area + 
vector), and deducing the vector in the page fault handler from cr2.

-- 
error compiling committee.c: too many arguments to function