Messages in this thread | | | Date | Tue, 30 Apr 2013 11:09:34 +0100 | From | Serban Constantinescu <> | Subject | Re: [PATCH v3 0/6] Android Binder IPC Fixes |
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On 30/04/13 11:04, Kirill A. Shutemov wrote: > On Tue, Apr 30, 2013 at 09:52:34AM +0100, Serban Constantinescu wrote: >> Hi Kirill, >> >> On 30/04/13 08:31, Kirill A. Shutemov wrote: >>> On Fri, Apr 12, 2013 at 01:25:49PM +0100, Serban Constantinescu wrote: >>>> The patch set has been successfully tested with a 64bit Linux userspace and >>>> 64bit binder unit-tests. >>>> >>>> This patch set has been successfully tested on 32bit platforms(ARMv7 VExpress) >>>> and 64bit platforms(ARMv8 RTSM) running a 32bit Android userspace and an in >>>> kernel binder compat layer. >>> >>> I've tried to replace ugly hack with your patches to be able to boot >>> 32-bit userspace on x86-64. It fails. :( >>> >> >> This patch set fixes the binder interface so that it works on 32/32 >> or 64/64 systems and preps the driver for the compat layer - 64bit >> kernel/32bit userspace. As discussed with the Android developers the >> binder compat will live in the userspace. > > Does the compat layer already exist or it's a plan? We were working with a kernel compat layer. However this wasn't encouraged by the Android developers who would prefer a userspace binder compat.
The changes in this patch set fix the kernel interface so that it will work with the yet to be developed userspace wrapper.
Some support for 64/32 systems has already been integrated - see ashmem.
Thanks, Serban
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