linux-kernel - Re: [PATCH] KVM: SVM: switch to raw spinlock for svm->ir_list

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Message-ID: <176227788402.3933803.15173176547209151653.b4-ty@google.com>
Date: Tue,  4 Nov 2025 09:44:58 -0800
From: Sean Christopherson <seanjc@...gle.com>
To: Sean Christopherson <seanjc@...gle.com>, kvm@...r.kernel.org, 
	Maxim Levitsky <mlevitsk@...hat.com>
Cc: Dave Hansen <dave.hansen@...ux.intel.com>, Ingo Molnar <mingo@...hat.com>, 
	Borislav Petkov <bp@...en8.de>, Thomas Gleixner <tglx@...utronix.de>, Paolo Bonzini <pbonzini@...hat.com>, 
	linux-kernel@...r.kernel.org, "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org
Subject: Re: [PATCH] KVM: SVM: switch to raw spinlock for svm->ir_list_lock

On Thu, 30 Oct 2025 15:41:30 -0400, Maxim Levitsky wrote:
> svm->ir_list_lock can be taken during __avic_vcpu_put which can be called
> from schedule() via kvm_sched_out.
> 
> Therefore use a raw spinlock instead.
> 
> This fixes the following lockdep warning:
> 
> [...]

Applied to kvm-x86 fixes.  Thanks for doing this, it's been on my todo list for
several months :-)

[1/1] KVM: SVM: switch to raw spinlock for svm->ir_list_lock
      https://github.com/kvm-x86/linux/commit/fd92bd3b4445

--
https://github.com/kvm-x86/linux/tree/next