[PULL 16/19] kvm: arm: don't treat unavailable HYP mode as an error

Christoffer Dall cdall at kernel.org
Mon Dec 4 06:03:45 PST 2017


From: Ard Biesheuvel <ard.biesheuvel at linaro.org>

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 at arm.com>
Acked-by: Christoffer Dall <christoffer.dall at linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel at linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall at linaro.org>
---
 virt/kvm/arm/arm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
index 322c570d211e..ca65d06b38a8 100644
--- a/virt/kvm/arm/arm.c
+++ b/virt/kvm/arm/arm.c
@@ -1507,7 +1507,7 @@ 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;
 	}
 
-- 
2.14.2




More information about the linux-arm-kernel mailing list