linux-kernel - Re: [PATCH v7 00/10] x86: Add support for NMI-source reporting with FRED

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Message-ID: <20250613070619.GF2273038@noisy.programming.kicks-ass.net>
Date: Fri, 13 Jun 2025 09:06:19 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: Sohil Mehta <sohil.mehta@...el.com>
Cc: x86@...nel.org, linux-kernel@...r.kernel.org, Xin Li <xin@...or.com>,
	"H . Peter Anvin" <hpa@...or.com>,
	Andy Lutomirski <luto@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Sean Christopherson <seanjc@...gle.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Kan Liang <kan.liang@...ux.intel.com>,
	Tony Luck <tony.luck@...el.com>, Zhang Rui <rui.zhang@...el.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Andrew Cooper <andrew.cooper3@...rix.com>,
	"Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>,
	Jacob Pan <jacob.pan@...ux.microsoft.com>,
	Andi Kleen <ak@...ux.intel.com>, Kai Huang <kai.huang@...el.com>,
	Sandipan Das <sandipan.das@....com>,
	linux-perf-users@...r.kernel.org, linux-edac@...r.kernel.org,
	kvm@...r.kernel.org, linux-pm@...r.kernel.org,
	linux-trace-kernel@...r.kernel.org
Subject: Re: [PATCH v7 00/10] x86: Add support for NMI-source reporting with
 FRED

On Thu, Jun 12, 2025 at 02:48:39PM -0700, Sohil Mehta wrote:

> Jacob Pan (1):
>   perf/x86: Enable NMI-source reporting for perfmon
> 
> Sean Christopherson (1):
>   x86/fred: Provide separate IRQ vs. NMI wrappers for entry from KVM
> 
> Sohil Mehta (8):
>   x86/fred: Pass event data to the NMI entry point from KVM
>   x86/cpufeatures: Add the CPUID feature bit for NMI-source reporting
>   x86/nmi: Extend the registration interface to include the NMI-source
>     vector
>   x86/nmi: Assign and register NMI-source vectors
>   x86/nmi: Add support to handle NMIs with source information
>   x86/nmi: Prepare for the new NMI-source vector encoding
>   x86/nmi: Enable NMI-source for IPIs delivered as NMIs
>   x86/nmi: Print source information with the unknown NMI console message

Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>