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SubjectRe: [patch] paravirt: isolate module ops
Rusty Russell wrote:
> +int paravirt_write_msr(unsigned int msr, u64 val);

If binary modules using debug registers makes us nervous, the
reprogramming MSRs is also similarly bad.

> +void raw_safe_halt(void);
> +void halt(void);

These shouldn't be done by modules, ever. Only the scheduler should
decide to halt.
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