arm64: KVM: VHE: Split save/restore of registers shared between guest and host

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A handful of system registers are still shared between host and guest,
even while using VHE (tpidr*_el[01] and actlr_el1).

Also, some of the vcpu state (sp_el0, PC and PSTATE) must be
save/restored on entry/exit, as they are used on the host as well.

In order to facilitate the introduction of a VHE-specific sysreg
save/restore, make move the access to these registers to their
own save/restore functions.

No functional change.

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

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Marc Zyngier 2015-10-28 12:39:38 +00:00

parent edef528dc4

commit 9c6c356832

1 changed files with 33 additions and 15 deletions

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arch/arm64/kvm/hyp/sysreg-sr.c

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