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xen-devel
[Xen-devel] Re: [PATCH, experimental] i386 Allow the fixmap to be reloca
On Fri, 2005-08-05 at 17:09 -0700, Zachary Amsden wrote:
> Also, it seems reasonable that people may want to poke holes in high
> linear space for other hypervisor projects, research, or performance
> reasons without having to build a custom sub-architecture just for
> that. So I think there is some benefit to making the hole size a
> general configurable option (with defaults depending on the sub-arch you
> select).
qemu-fast needs a kernel with __FIXADDR_TOP 0xa7fff000, and PAGE_OFFSET
0x90000000. I used to continually patch my kernels, but these days I
just run full qemu and take the speed hit. If this was easier, it would
be really nice to have that speed back.
Rusty.
--
A bad analogy is like a leaky screwdriver -- Richard Braakman
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