[PATCH 0/4] KVM: arm/arm64: Fix locking issues

[Paolo Bonzini]

On 15/05/2018 12:26, Christoffer Dall wrote:
> On Fri, May 11, 2018 at 03:20:11PM +0100, Andre Przywara wrote:
>> Jan recently reported lockdep complaints regarding various locks in our
>> VGIC emulation [1][2].
>> This boiled down to two separate issues:
>> - When promoting the vgic_irq->irq_lock to require IRQs being disabled,
>>   we forgot to amend some instances of this lock on the way. Also this
>>   needs to be applied to dependent locks as well. The first two patches
>>   fix that. The patch split is designed to simplify backporting.
>>   Those patches have been posted before, I am resending them as part
>>   of this series.
>> - Calling kvm_read_guest() requires us to be inside an SRCU critical
>>   section. On some architectures we are always in it when handling VCPU
>>   exits, but on ARM we need to lock it individually. Patches 3 and 4
>>   fix that, the split is again made to ease backporting.
>>   Each of the hunks fix an indiviual commit, but I refrained from
>>   splitting this down into eight patches just to put proper Fixes: tags
>>   on it. Eventually those commits are part of one out of two series, I put
>>   the respective kernel release version as a tag to the Cc: stable line.
>>
>> I couldn't reproduce the full lockdep splat on my setup, but at least
>> could show one instance and prove that these patches fixes that.
>>
>>
> For the series:
> 
> Acked-by: Christoffer Dall <christoffer.dall at arm.com>

Shall I put the patches on their route to Linus?

Thanks,

Paolo