Marc Zyngier e5a290c4ff arm/arm64: KVM: Add PSCI version selection API ... commit 85bd0ba1ff upstream. Although we've implemented PSCI 0.1, 0.2 and 1.0, we expose either 0.1 or 1.0 to a guest, defaulting to the latest version of the PSCI implementation that is compatible with the requested version. This is no different from doing a firmware upgrade on KVM. But in order to give a chance to hypothetical badly implemented guests that would have a fit by discovering something other than PSCI 0.2, let's provide a new API that allows userspace to pick one particular version of the API. This is implemented as a new class of "firmware" registers, where we expose the PSCI version. This allows the PSCI version to be save/restored as part of a guest migration, and also set to any supported version if the guest requires it. Cc: stable@vger.kernel.org #4.16 Reviewed-by: Christoffer Dall <cdall@kernel.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-05-01 12:58:27 -07:00
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arm_arch_timer.h	KVM: arm/arm64: Allow setting the timer IRQ numbers from userspace	2017-06-08 16:59:57 +02:00
arm_pmu.h	KVM: arm/arm64: PMU: Fix overflow interrupt injection	2017-07-25 14:18:01 +01:00
arm_psci.h	arm/arm64: KVM: Add PSCI version selection API	2018-05-01 12:58:27 -07:00
arm_vgic.h	KVM: arm64: vgic-v3: Add hook to handle guest GICv3 sysreg accesses at EL2	2017-06-15 09:44:59 +01:00
iodev.h	KVM: move iodev.h from virt/kvm/ to include/kvm	2015-03-26 21:43:12 +00:00