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Date: Fri, 20 Dec 2013 10:27:21 -0800
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Subject: Re: svn commit: r259641 - in head/sys/amd64: amd64 include vmm/intel
From: Benjamin Kaduk <bjkfbsd@gmail.com>
To: Neel Natu <neel@freebsd.org>
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On Thu, Dec 19, 2013 at 9:50 PM, Neel Natu <neel@freebsd.org> wrote:

> Author: neel
> Date: Fri Dec 20 05:50:22 2013
> New Revision: 259641
> URL: http://svnweb.freebsd.org/changeset/base/259641
>
> Log:
>   Re-arrange bits in the amd64/pmap 'pm_flags' field.
>
>   The least significant 8 bits of 'pm_flags' are now used for the IPI
> vector
>   to use for nested page table TLB shootdown.
>
>   Previously we used IPI_AST to interrupt the host cpu which is
> functionally
>   correct but could lead to misleading interrupt counts for AST handler.
> The
>   AST handler was also doing a lot more than what is required for the
> nested
>   page table TLB shootdown (EOI and IRET).
>

This represents a KBI change, does it not?  Should __FreeBSD_version be
bumped?

-Ben