Re: [Xen-devel] [RFC 21/22] xen/arm: p2m: Re-implement p2m_set_mem_access using p2m_{set, get}_entry

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

On Tue, 6 Sep 2016, Razvan Cojocaru wrote:
> On 09/06/16 22:06, Stefano Stabellini wrote:
> > On Thu, 28 Jul 2016, Julien Grall wrote:
> >> > The function p2m_set_mem_access can be re-implemented using the generic
> >> > functions p2m_get_entry and __p2m_set_entry.
> >> > 
> >> > Note that because of the implementation of p2m_get_entry, a TLB
> >> > invalidation instruction will be issued for each 4KB page. Therefore the
> >> > performance of memaccess will be impacted, however the function is now
> >> > safe on all the processors.
> >> > 
> >> > Also the function apply_p2m_changes is dropped completely as it is not
> >> > unused anymore.
> >> > 
> >> > Signed-off-by: Julien Grall <julien.grall@xxxxxxx>
> >> > Cc: Razvan Cojocaru <rcojocaru@xxxxxxxxxxxxxxx>
> >> > Cc: Tamas K Lengyel <tamas@xxxxxxxxxxxxx>
> > Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
> 
> How far is this patch from landing into staging? Considering the recent
> discussion about the patch I'm working on, this would certainly impact
> the upcoming ARM part of it.

The patch depends on previous patches on this series. Some of them are
acked but not all.

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