[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v9 04/14] arch/arm: unmap partially-mapped I/O-memory regions
On Thu, 2014-07-03 at 16:00 +0100, Julien Grall wrote: > On 07/03/2014 03:40 PM, Ian Campbell wrote: > > On Wed, 2014-07-02 at 20:42 +0200, Arianna Avanzini wrote: > >> This commit changes the function apply_p2m_changes() to unwind changes > >> performed while mapping an I/O-memory region, if errors are seen during > >> the operation. This is useful to avoid that I/O-memory areas are > >> partially accessible to guests. > > > > I think it won't quite unwind, since it will actually destroy whatever > > was there before we tried to put something new. > > > > Is there anything here which is specific to I/O memory areas? It seems > > to affect all mapping types. > > I think it's fine to unmap for mapping types. Agreed, but the commit message doesn't reflect that. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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