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    SubjectRe: [patch] use __asm__ and __volatile__ in asm-x86_64/msr.h
    On Mon, Jun 18, 2007 at 10:02:21AM -0400, Mike Frysinger wrote:
    > > This is wrong for two reasons:
    > >
    > > - MSRs are not accessible in user space.
    > > - .section .fixup is not applicable to user space.
    > >
    > > Anything MSR-related should be protected by __KERNEL__ instead.
    > >
    > > This NAK doesn't apply to rdtsc* and rdpmc* changes, however, as those
    > > instructions are legitimate in userspace.
    >
    > then someone needs to audit msr.h for this because currently it lacks
    > __KERNEL__ of any kind yet is exported completely to userspace ... i dont
    > know anything about this instructions so that someone != me
    >
    > this is similar to what i heard last time i tried to fixup msr.h for
    > userspace, but the file still hasnt been updated ...

    asm-i386/msr.h should not be exported to userspace at all, it contains
    nothing but kernel-internal helpers.
    -
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