Re: [Xen-devel] using debug registers in hypervisor to intercept access to a function inside HVM

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Sun, 2012-07-29 at 00:41 +0100, LL wrote:
> What am I missing in my implementation?

It's rather hard to say when you haven't posted your implementation.

Have you considered any distinction between the DRs used in root vs
non-root mode? Have you considered the differences between virtual,
physical and machine addresses in those modes and what they may mean for
the use of addresses in DRs? Have you considered which context an INT1
in non-root mode will be delivered in?

Ian.


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