Re: linux-next: build failure after merge of the kvm tree

[Sean Christopherson]

On Tue, Apr 19, 2022, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the kvm tree, today's linux-next build (arm64 defconfig)
> failed like this:
> 
> arch/arm64/kvm/psci.c: In function 'kvm_prepare_system_event':
> arch/arm64/kvm/psci.c:184:32: error: 'struct <anonymous>' has no member named 'flags'
>   184 |         vcpu->run->system_event.flags = flags;
>       |                                ^
> 
> Caused by commit
> 
>   c24a950ec7d6 ("KVM, SEV: Add KVM_EXIT_SHUTDOWN metadata for SEV-ES")
> 
> In this commit, the uapi structure changes do not match the documentation
> changes :-(  Does it matter that the ABI may be changed by this commit
> (depending on the alignment of the structure members)?

Yeah, it's a bit of mess.  I believe we have a way out, waiting on Paolo to weigh in.

https://lore.kernel.org/all/YlisiF4BU6Uxe+iU@xxxxxxxxxx