ARM: hyp-stub: Implement HVC_RESET_VECTORS stub hypercall

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Let's define a new stub hypercall that resets the HYP configuration
to its default: hyp-stub vectors, and MMU disabled.

Of course, for the hyp-stub itself, this is a trivial no-op.
Hypervisors will have a bit more work to do.

Tested-by: Keerthy <j-keerthy@ti.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <cdall@linaro.org>

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Marc Zyngier 2017-04-03 19:37:52 +01:00 • committed by Christoffer Dall

parent 4c70cf07ce

commit 7d1bf4e057

2 changed files with 13 additions and 1 deletions

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3

arch/arm/include/asm/virt.h

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11

arch/arm/kernel/hyp-stub.S

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