KVM: arm64: Skip computing hyp VA layout for VHE

Computing the hyp VA layout is redundant when the kernel runs in EL2 and
hyp shares its VA mappings. Make calling kvm_compute_layout()
conditional on not just CONFIG_KVM but also !is_kernel_in_hyp_mode().

Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20201208142452.87237-4-dbrazdil@google.com

diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 18e9727..4e585cc 100644 (file)
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -434,7 +434,7 @@ static void __init hyp_mode_check(void)
                           "CPU: CPUs started in inconsistent modes");
        else
                pr_info("CPU: All CPU(s) started at EL1\n");
-       if (IS_ENABLED(CONFIG_KVM))
+       if (IS_ENABLED(CONFIG_KVM) && !is_kernel_in_hyp_mode())
                kvm_compute_layout();
 }