From patchwork Mon Jul 17 15:18:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arjan van de Ven X-Patchwork-Id: 13315900 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 855C9C001DF for ; Mon, 17 Jul 2023 15:20:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231691AbjGQPUB (ORCPT ); Mon, 17 Jul 2023 11:20:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51776 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231715AbjGQPTl (ORCPT ); Mon, 17 Jul 2023 11:19:41 -0400 Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 435021739 for ; Mon, 17 Jul 2023 08:19:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1689607169; x=1721143169; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=HDyxnFMW6ToDi+AVUzlUAgIJLjyTYn/1ND+QK+JrqIk=; b=UMq2iuZo9kid36PgF48qyE8kYaC926BtR1WUPWe6pXArE6l9KiZYOhKq xZHP/cBVn01UW98cmc4cq4aw1COTAqtvSANsTHazRl7075b4USsb99f5l I+pKyauAwaCMhGtUon67IKDePrpu1qFVQ6X6d5dZkIglpRNwbkd9hgGcF BIEIP88p6BvTPc6L0VD1q0m1ntV5599CxXr2+5bndjJJWpfTHasZlvkCH 4Szoz5o+4lsVIQEEzL5TBBPgPAYkVIfbgOz13XbnTu1lkni1LgBkmeZK/ UPRLbZJTScboMrVHYYBnz+50igVrtTz3KaruZpz70kK3m1STRIFtSjxAp A==; X-IronPort-AV: E=McAfee;i="6600,9927,10774"; a="429716547" X-IronPort-AV: E=Sophos;i="6.01,211,1684825200"; d="scan'208";a="429716547" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Jul 2023 08:19:11 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10774"; a="726581590" X-IronPort-AV: E=Sophos;i="6.01,211,1684825200"; d="scan'208";a="726581590" Received: from arjan-box.jf.intel.com ([10.54.74.119]) by fmsmga007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Jul 2023 08:19:11 -0700 From: arjan@linux.intel.com To: linux-pm@vger.kernel.org Cc: rafael@kernel.org, Arjan van de Ven Subject: [PATCH 3/4] intel_idle: add VM guest (non)handling to model_specific_fixups Date: Mon, 17 Jul 2023 15:18:55 +0000 Message-ID: <20230717151856.2529029-3-arjan@linux.intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230717151856.2529029-1-arjan@linux.intel.com> References: <20230717151856.2529029-1-arjan@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org From: Arjan van de Ven The model specific fixups don't make sense in a VM guest; all the MSR accesses at best will be fiction, and at worse cause logspam Signed-off-by: Arjan van de Ven --- drivers/idle/intel_idle.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index f3eba9b147d2..4dd8081d2406 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -1957,6 +1957,10 @@ static bool should_verify_mwait(struct cpuidle_state *state) static void __init model_specific_fixups(void) { + /* when running in a hypervisor, none of these fixups will work */ + if (boot_cpu_has(X86_FEATURE_HYPERVISOR)) + return; + switch (boot_cpu_data.x86_model) { case INTEL_FAM6_IVYBRIDGE_X: ivt_idle_state_table_update();