linux-kernel - Re: [PATCH 3/6] x86/kvm/emulate: Avoid RET for fastops

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Message-ID: <20250426100134.GB4198@noisy.programming.kicks-ass.net>
Date: Sat, 26 Apr 2025 12:01:34 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: Josh Poimboeuf <jpoimboe@...nel.org>
Cc: x86@...nel.org, kys@...rosoft.com, haiyangz@...rosoft.com,
	wei.liu@...nel.org, decui@...rosoft.com, tglx@...utronix.de,
	mingo@...hat.com, bp@...en8.de, dave.hansen@...ux.intel.com,
	hpa@...or.com, pawan.kumar.gupta@...ux.intel.com, seanjc@...gle.com,
	pbonzini@...hat.com, ardb@...nel.org, kees@...nel.org,
	Arnd Bergmann <arnd@...db.de>, gregkh@...uxfoundation.org,
	linux-hyperv@...r.kernel.org, linux-kernel@...r.kernel.org,
	kvm@...r.kernel.org, linux-efi@...r.kernel.org,
	samitolvanen@...gle.com, ojeda@...nel.org
Subject: Re: [PATCH 3/6] x86/kvm/emulate: Avoid RET for fastops

On Wed, Apr 16, 2025 at 10:38:59AM +0200, Peter Zijlstra wrote:

> Yeah, I finally got there. I'll go cook up something else.

Sean, Paolo, can I once again ask how best to test this fastop crud?