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SubjectRe: [PATCH RFC/RFB] x86_64, i386: interrupt dispatch changes
[Ingo Molnar - Tue, Nov 04, 2008 at 10:52:45PM +0100]
|
| * H. Peter Anvin <hpa@zytor.com> wrote:
|
| > Ingo Molnar wrote:
| > > * Ingo Molnar <mingo@elte.hu> wrote:
| > >
| > >> And as hpa's comments point it out, compressing the rather stupid
| > >> irq stubs might be a third option that looks promising as well.
| > >
| > > ... and we should try and see how far we can compress those stubs,
| > > before we do any segment register based tricks.
| > >
| >
| > Using the techniques previously mentioned, for 224 vectors:
| >
| > 1792 bytes ( 8 bytes/stub) - trivial.
| > 1568 bytes ( 7 bytes/stub) - same without alignment.
| > 952 bytes (~4 bytes/stub) - extra jump needed.
| >
| > For comparison, the IDT itself is 2048 bytes on x86-32 and 4096 bytes on
| > x86-64.
|
| sounds like a plan :)
|
| Ingo
|

Ingo, what the conclusion is? As I understand from the thread --

1) Implement Peter's proposed cleanup/compress.
2) Test Alexander's patche.

Did I miss something?

- Cyrill -


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