From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 71BE31E98E3; Fri, 20 Mar 2026 09:04:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.92.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773997445; cv=none; b=udmEJxiMrMLJAcPd+T2Hp/8R8ORf6cSpXzOF6ZpCPFnKwdmx49u9I234I/YLEkB9KsCjw3QqhnIy2/Ag/T1Rp4oeR0IwrK7bzj5oFg2878XNh/S6UDRoQWp01AtNgrSsVUxQGOobWDAa1nlnL5ytriB+TzM51S1mE2u+M3CAZfs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773997445; c=relaxed/simple; bh=tLRV6GWt0nIH04h46cD5fAI/puIETbeyPGCSNjkPhWM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=kL7hvZbt292QRRLw7vgnsI7i26Wq/vQqFiGacL/KmriXThMJmoSwZlVyTJXbeimF2ciHGmqqSzR9X29D3xhSdLni2HV7KN5EDu0olS2skY9K1NTaDwit/VocaIhXlTX53+XpPqnZwRa5S5YteoIFFi+ktYbSRwkJGt53DDbdnJQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=RX25+PQ/; arc=none smtp.client-ip=90.155.92.199 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="RX25+PQ/" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=tLRV6GWt0nIH04h46cD5fAI/puIETbeyPGCSNjkPhWM=; b=RX25+PQ//oLNIUwog0UzVIbDEP uQEotUlu63UWGNG7lcvdJFT2beO1gYq+/Qvr896xR5OnHaQCLVudBWoF2v6l+hrS0/RzZzRpdcccu fm+eBa7b22mZBFL5XFMn2S6+/vGbJH8Q3lo1DyYzBasF+rZOv79yMWc32W1tj00eTIe9ixzYixqEb A5Zz7rQV5VAIMb7pf698D6LwS4Kk864K0cRZvtlLWLhke52kWXWI3DcS0gJ2QF2r38g8/4iXZ9NNP zcvek9+l0a5HnoqZlql5Ciaxl+ISS/w7OAYXgmUA5Z2CpPGv/zfSLYJiJjaGv1NUEArV+zSnPukln 2DyVOwwg==; Received: from 2001-1c00-8d85-5700-266e-96ff-fe07-7dcc.cable.dynamic.v6.ziggo.nl ([2001:1c00:8d85:5700:266e:96ff:fe07:7dcc] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.98.2 #2 (Red Hat Linux)) id 1w3Vld-0000000FCA7-0OpM; Fri, 20 Mar 2026 09:03:41 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 37587301150; Fri, 20 Mar 2026 10:03:40 +0100 (CET) Date: Fri, 20 Mar 2026 10:03:40 +0100 From: Peter Zijlstra To: Pawan Gupta Cc: x86@kernel.org, Nikolay Borisov , "H. Peter Anvin" , Josh Poimboeuf , David Kaplan , Sean Christopherson , Borislav Petkov , Dave Hansen , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , KP Singh , Jiri Olsa , "David S. Miller" , David Laight , Andy Lutomirski , Thomas Gleixner , Ingo Molnar , David Ahern , Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , John Fastabend , Stanislav Fomichev , Hao Luo , Paolo Bonzini , Jonathan Corbet , linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Asit Mallick , Tao Zhang , bpf@vger.kernel.org, netdev@vger.kernel.org, linux-doc@vger.kernel.org Subject: Re: [PATCH v7 07/10] x86/vmscape: Use static_call() for predictor flush Message-ID: <20260320090340.GN3738786@noisy.programming.kicks-ass.net> References: <20260319-vmscape-bhb-v7-0-b76a777a98af@linux.intel.com> <20260319-vmscape-bhb-v7-7-b76a777a98af@linux.intel.com> <20260319205802.GJ3738786@noisy.programming.kicks-ass.net> <20260319213421.br6na4dulrjm6eke@desk> <20260319214409.GL3738786@noisy.programming.kicks-ass.net> <20260320062206.bdrnmnvho6lhmejw@desk> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260320062206.bdrnmnvho6lhmejw@desk> On Thu, Mar 19, 2026 at 11:22:06PM -0700, Pawan Gupta wrote: > This plus extending it to support EXPORT_STATIC_CALL_FOR_KVM() is probably > a better solution. Please let me know which one you prefer. The EXPORT twiddling will do I suppose. I'll try and not forget looking at doing the RO static_call thing some time.