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xen-devel
Re: [Xen-devel] address space reorganization
Kip Macy wrote:
That works OK for the kernel, but you might have user space apps that
have adapted their behviour based on what the've found in /proc/cpuinfo.
A compromise then would be to lie to userspace and still recalibrate the
kernel.
If you're saying what I think you are - I don't think people who have
customized their apps for SSE2 would like that.
This is what Keir was suggesting, but still giving the kernel a chance
to use SSE[12] for its own purposes. It is not perfect, the only perfect
solution would alert user-space apps about the impending change, so that
they can react to or veto the migration.
Jacob
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