ARM: KVM: Add banked registers save/restore

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Banked registers are one of the many perks of the 32bit architecture,
and the world switch needs to cope with it.

This requires some "special" accessors, as these are not accessed
using a standard coprocessor instruction.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

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This commit is contained in:

Marc Zyngier 2016-01-05 18:38:09 +00:00

parent 59cbcdb5d8

commit 33280b4cd1

3 changed files with 89 additions and 0 deletions

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1

arch/arm/kvm/hyp/Makefile

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77

arch/arm/kvm/hyp/banked-sr.c

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11

arch/arm/kvm/hyp/hyp.h

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