From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.alien8.de (mail.alien8.de [65.109.113.108]) (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 E36F43C5550; Wed, 15 Jul 2026 22:59:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=65.109.113.108 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784156352; cv=none; b=VIW0xow/Gsjlx6F/FMrFHiW9hRkAQv3mP4TThyCsiSJYXH3KZLQ+2dxVEBH9HUUdTqCKmOMfCA7R0ISCSox+58Oc6+CH0frYhGV4UrAgD6ef4l1pQY6m1kk75u8yePD6zjeIlkxlK76GK/J2lz5HWZDVoKuNmlvS0b2llkjANt0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784156352; c=relaxed/simple; bh=/lzFJhABRUy+KiQy0qiOYHx3t8OFYNnY7gqj2PnHe/g=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=mrRHYv0ZPBKU/PeT+pLnRzyIrMnJWY0Hf8675I1bI53/P2pzRBrR7MRCzPtpN/jGiJJny8BiUDSkDfwN3+1ZdmM1oY7uUsl7xjxRCJ2+qGd48Wa0YwdnDz8jBu+6jSm63YRfrqzJr6yR1yADHOAuSNC4jT2U949B0Kh3f3hYdhE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de; spf=pass smtp.mailfrom=alien8.de; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b=Zd/LlOSh; arc=none smtp.client-ip=65.109.113.108 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=alien8.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b="Zd/LlOSh" Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id 74B6B40E019E; Wed, 15 Jul 2026 22:59:07 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at mail.alien8.de Authentication-Results: mail.alien8.de (amavisd-new); dkim=pass (4096-bit key) header.d=alien8.de Received: from mail.alien8.de ([127.0.0.1]) by localhost (mail.alien8.de [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id XclVYafuI90z; Wed, 15 Jul 2026 22:58:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1784156337; bh=N7AjLxWBxSGpWfLKscRnhuR4xi9Boc26YLbIPUVpTHM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Zd/LlOSh9PkXIxBc+HKXIIAc7MlFvjreZMhVBJCPM5gRy6sty7F47teWoATdoMbIp 2iuHi6xOIUzQ07RyNY+pVaSivy5hT5QnS9iuN497vSR0oXRzt+kHFKTBdQYvBWGunK fGbfEnQemHRtcZ8WPMNqQz81yUDCeTk1i5BYSEXvIXO8PXLFmPzJ++THIxQzZP+chK VjWNGGXtf+evW8XvMfIXiJwq/Swo9+8kR074zjCuhVULlA1OXXKAxV5TyoQKX5HnAM oXMIL8oHEb4qcKXoFg0omkNHFi9C7EW207zxahg+UKLHuYkr7O90oURB3GBhT/i1Bs cy3VGADrVwpYOhoe5sCVdl5KYGwVbJ8I/dNG95AyXn3Yo2VBLI9cmR+1SAmSuq99Jo Ypmh5vLq6JhPwYn92I3q5VM6rbStfMr8qcitmKJspM3EakJ+k47pyeAHLSTWtLwgPy hRHGOOOj20mQrYB3Ucs62dLOtc+m4/mmYPeC8XJH5m/kyEyhfJAQEIfx9D61Wr2Vdg +mUNtVrJd7TnuaMd5/Q0enEqqHlISKHGd/lTWZ1Txdg3fsBhld725qHeHJWMy7LHGQ rODWQW98VQNJl8fysSSlM6ddUR28hP7ykS8hyoUZQ27RIbb8W5/oghcw7N2l/cZUot r+B3iF4UMPXz6mXBoC0lzXxc= Received: from stx.tnic (unknown [12.110.208.163]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id D2C7F40E00E6; Wed, 15 Jul 2026 22:58:46 +0000 (UTC) Date: Wed, 15 Jul 2026 15:58:34 -0700 From: Borislav Petkov To: Jason Andryuk Cc: Rong Zhang , Mario Limonciello , Huang Rui , Perry Yuan , K Prateek Nayak , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, "Rafael J. Wysocki" , Viresh Kumar Subject: Re: [PATCH] cpufreq/amd-pstate: Bail out early in virtual machines and don't warn Message-ID: <20260715225834.GAalgQmpfnioYepdbz@fat_crate.local> References: <20260716-amd-pstate-vm-v1-1-2ac97d3cf6e7@rong.moe> <0c55d331-bf98-4e6e-9de5-35803ead3c0a@amd.com> <20260715180454.GAalfLxn3Wyu-fRjoT@fat_crate.local> <61a141cd-c72a-4ee5-8273-ee721aa13f68@amd.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <61a141cd-c72a-4ee5-8273-ee721aa13f68@amd.com> On Wed, Jul 15, 2026 at 04:32:53PM -0400, Jason Andryuk wrote: > I think changing amd_cppc_supported() to return false for > X86_FEATURE_HYPERVISOR makes sense and can remove the message. The > heuristic there doesn't seem relevant when virtualized. I don't maintain that code but if I were, I won't sprinkle if X86_FEATURE_HYPERVISOR for no good reason. And the guest warning is not good enough a reason. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette