Move the initialization of kvm_nvhe_init_params in a dedicated function
that is run early, and only once during KVM init, rather than every time
the KVM vectors are set and reset.

This also opens the opportunity for the hypervisor to change the init
structs during boot, hence simplifying the replacement of host-provided
page-tables and stacks by the ones the hypervisor will create for
itself.

Signed-off-by: Quentin Perret <redacted>
---
 arch/arm64/kvm/arm.c | 28 ++++++++++++++++++++--------
 1 file changed, 20 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 04c44853b103..3ac0f3425833 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c

@@ -1807,6 +1813,12 @@ static int init_hyp_mode(void)
 			goto out_err;
 	}
 
+	/*
+	 * Prepare the CPU initialization parameters
+	 */
+	for_each_possible_cpu(cpu)
+		cpu_prepare_hyp_mode(cpu);
+