linux-kernel - Re: [GIT PULL] KVM changes for Linux 6.15-rc3

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Message-ID: <CABgObfYzbWspmaEsvSZYkBr1UQ7C5rD0NQ+=UsnSU3OG5tkcDQ@mail.gmail.com>
Date: Fri, 18 Apr 2025 19:06:41 +0200
From: Paolo Bonzini <pbonzini@...hat.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Sean Christopherson <seanjc@...gle.com>, linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [GIT PULL] KVM changes for Linux 6.15-rc3

On Fri, Apr 18, 2025 at 6:13 PM Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
> On Fri, 18 Apr 2025 at 06:06, Paolo Bonzini <pbonzini@...hat.com> wrote:
> >   https://git.kernel.org/pub/scm/virt/kvm/kvm.git tags/for-linus
>
> I pulled this, but then I unpulled it, because this doesn't work for
> me AT ALL. I get
>
>    ERROR: modpost: "kvm_arch_has_irq_bypass" [arch/x86/kvm/kvm-amd.ko]
> undefined!
>
> when building it. I assume it's due to the change in commit
> 73e0c567c24a ("KVM: SVM: Don't update IRTEs if APICv/AVIC is
> disabled") but didn't check any closer.

Yep.

> I think it's literally just because that symbol isn't exported, but I
> also suspect that the *right* fix is to make that function be an
> inline function that doesn't *need* to be exported.

Yes, that's possible since enable_apicv is already exported. Sorry for
the screwup.

Paolo