tree 5c8593b0ba2a42cbeacf314572402fdc71b3aab8
parent 328762247cd33b4533f9dd89a4faf40288f359b7
author Marc Zyngier <marc.zyngier@arm.com> 1422546475 +0000
committer Marc Zyngier <marc.zyngier@arm.com> 1456770857 +0000

arm64: KVM: VHE: Implement VHE activate/deactivate_traps

Running the kernel in HYP mode requires the HCR_E2H bit to be set
at all times, and the HCR_TGE bit to be set when running as a host
(and cleared when running as a guest). At the same time, the vector
 must be set to the current role of the kernel (either host or
hypervisor), and a couple of system registers differ between VHE
and non-VHE.

We implement these by using another set of alternate functions
that get dynamically patched.

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