Messages in this thread | | | Date | Wed, 2 Mar 2016 00:19:23 +0300 | From | Yury Norov <> | Subject | Re: [PATCH v2 0/8] arm64: Support for systems without AArch32 state |
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On Thu, Feb 25, 2016 at 09:52:40AM +0000, Suzuki K Poulose wrote: > This series add checks to make sure that the AArch32 state is > supported before we process the 32bit ID registers. Also > checks the same for COMPAT binary execution. > > (Painfully) applies on top of 4.5-rc5 + [1] + [2]. > > Or it is available here : > git://linux-arm.org/linux-skp.git noaarch32/v2-4.5-rc5 > > [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2016-February/410556.html > [2] http://lists.infradead.org/pipermail/linux-arm-kernel/2016-January/401913.html > > Changes since V1: > - Prevent changing the personality to PER_LINUX32 by adding > wrapper for personality() syscall. > - Add the check to KVM before initialising a AArch32 vcpu > - Tested on hardware. > > Btw, linux32 doesn't complain when the personality() syscall fails to change > to PER_LINUX32. You can verify the personality by running > $ cat /proc/cpuinfo > which would still list the 64bit features for the CPUs.
Hi Suzuki,
I have some troubles with access to appropriate hardware to test it, but I didn't forget.
Yury.
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