This is a note to let you know that I've just added the patch titled
kvm: arm: don't treat unavailable HYP mode as an error
to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: kvm-arm-don-t-treat-unavailable-hyp-mode-as-an-error.patch and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From foo@baz Fri Feb 23 11:45:09 CET 2018
From: Ard Biesheuvel ard.biesheuvel@linaro.org Date: Tue, 28 Nov 2017 15:18:19 +0000 Subject: kvm: arm: don't treat unavailable HYP mode as an error
From: Ard Biesheuvel ard.biesheuvel@linaro.org
[ 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 --- virt/kvm/arm/arm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- 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; }
Patches currently in stable-queue which might be from ard.biesheuvel@linaro.org are
queue-4.14/kvm-arm-don-t-treat-unavailable-hyp-mode-as-an-error.patch