arm64: KVM: trap VM system registers until MMU and caches are ON

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In order to be able to detect the point where the guest enables
its MMU and caches, trap all the VM related system registers.

Once we see the guest enabling both the MMU and the caches, we
can go back to a saner mode of operation, which is to leave these
registers in complete control of the guest.

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

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This commit is contained in:

Marc Zyngier 2014-01-14 18:00:55 +00:00

parent 2072d29c46

commit 4d44923b17

3 changed files with 82 additions and 14 deletions

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3

arch/arm64/include/asm/kvm_arm.h

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3

arch/arm64/include/asm/kvm_asm.h

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90

arch/arm64/kvm/sys_regs.c

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