kvm: arm: don't treat unavailable HYP mode as an error

[ Upstream commit 58d0d19a204604ca0da26058828a53558b265da3 ]

Since it is perfectly legal to run the kernel at EL1, it is not
actually an error if HYP mode is not available when attempting to
initialize KVM, given that KVM support cannot be built as a module.
So demote the kvm_err() to kvm_info(), which prevents the error from
appearing on an otherwise 'quiet' console.

Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
index 8b6c42dc1aa98fbcc84bd00d88c392cd9f4e8962..1366462a3ab236aa69fde7c635293a78e5e4685a 100644 (file)
--- a/virt/kvm/arm/arm.c
+++ b/virt/kvm/arm/arm.c
@@ -1453,7 +1453,7 @@ int kvm_arch_init(void *opaque)
        bool in_hyp_mode;
 
        if (!is_hyp_mode_available()) {
-               kvm_err("HYP mode not available\n");
+               kvm_info("HYP mode not available\n");
                return -ENODEV;
        }