Re: [Xen-devel] [PATCH for-4.5 v12 0/3] Refactoring for future mem_event and mem_access support on ARM

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Wed, Oct 01, 2014 at 11:59:07AM +0100, Ian Campbell wrote:
> On Mon, 2014-09-29 at 17:55 +0200, Tamas K Lengyel wrote:
> > These patches are the refactoring and minor patches that will be required
> > for future mem_access support on ARM that could be merged now.
> 
> Needs a release exception.
> 
> Konrad,
> 
> We'd like to get some of these into 4.5 so as to ease life for people
> who want to backport ARM xenaccess and/or continue developing it for
> 4.6.

Right.
> 
> I'm in favour of only "xen/xsm: Wrap mem_access blocks into
> HAS_MEM_ACCESS ifdefs" and "xen/arm: Add p2m_set_permission and
> p2m_shatter_page helpers." for now IMO, the new hypercall can/should
> wait and come along with the user in 4.6.

OK.
> 
> Those two patches are a slight refactoring and a refactoring+ifdeffing
> (refactorings/movements painful to rebase without introducing errors).
> IMHO if they build then the risk of other regressions is slight.

Release-Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
> 
> Ian.
> 
> > 
> > This PATCH series is also available at:
> > https://github.com/tklengyel/xen/tree/arm_memaccess_12-for-4.5
> > 
> > Julien Grall (1):
> >   xen/arm: Implement domain_get_maximum_gpfn
> > 
> > Tamas K Lengyel (2):
> >   xen/xsm: Wrap mem_access blocks into HAS_MEM_ACCESS ifdefs
> >   xen/arm: Add p2m_set_permission and p2m_shatter_page helpers.
> > 
> >  xen/arch/arm/mm.c       |   2 +-
> >  xen/arch/arm/p2m.c      | 137 
> > +++++++++++++++++++++++++++++++++---------------
> >  xen/include/xsm/dummy.h |  26 ++++-----
> >  xen/include/xsm/xsm.h   |  29 +++++-----
> >  xen/xsm/dummy.c         |   7 ++-
> >  xen/xsm/flask/hooks.c   |  33 +++++++-----
> >  6 files changed, 151 insertions(+), 83 deletions(-)
> > 
> 
> 

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