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Re: [Xen-devel] xsave=0 workaround needed on 3.2 kernels with Xen 4.1 or Xen-unstable.

On 05/07/2012 12:15 AM, Jan Beulich wrote:
> The primary thing that strikes me as odd is that both calls are still
> indirect ones, even though I thought that they should get replaced
> by direct ones (or even the actual instruction, namely in the
> read_cr4() case) upon first use. Konrad, Jeremy - am I wrong here?

Patching happens as an explicit step during (moderately late) boot, not
as a side-effect of the first call, so it doesn't surprise me too much
that they haven't been updated at this point.


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