KVM: arm64: Prepare to handle deferred save/restore of 32-bit registers

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32-bit registers are not used by a 64-bit host kernel and can be
deferred, but we need to rework the accesses to these register to access
the latest values depending on whether or not guest system registers are
loaded on the CPU or only reside in memory.

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

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Christoffer Dall 2017-12-27 21:59:09 +01:00 • committed by Marc Zyngier

parent fc7563b340

commit a892819560

2 changed files with 59 additions and 40 deletions

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32

arch/arm64/include/asm/kvm_emulate.h

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69

arch/arm64/kvm/regmap.c

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