From patchwork Wed May 12 15:09:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Stamatis, Ilias" X-Patchwork-Id: 12254095 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 41D06C433B4 for ; Wed, 12 May 2021 15:16:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0C67761C47 for ; Wed, 12 May 2021 15:16:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233263AbhELPRt (ORCPT ); Wed, 12 May 2021 11:17:49 -0400 Received: from smtp-fw-80007.amazon.com ([99.78.197.218]:13419 "EHLO smtp-fw-80007.amazon.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233758AbhELPOo (ORCPT ); Wed, 12 May 2021 11:14:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1620832417; x=1652368417; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=oMhJxrjs2Es+3529yXwQICPY1v/fvMiXw1lk6BUiGrw=; b=ewQH27FlzuHxE0FFpiB4EiqJBIMP7B2kPDH0SI4bLUfbebuKsF3G8OFn opHigdIfThhBVoFLpK1gfx93PThNiTktioKMxfURapY5Zf0rIi5AQfkSp bSAgkRGghNTtVMcjqr9ysWGgo72tPuEK9LHxKsqzXJklUXGTKg4Jq2FB9 Y=; X-IronPort-AV: E=Sophos;i="5.82,293,1613433600"; d="scan'208";a="984968" Received: from pdx4-co-svc-p1-lb2-vlan3.amazon.com (HELO email-inbound-relay-1a-807d4a99.us-east-1.amazon.com) ([10.25.36.214]) by smtp-border-fw-80007.pdx80.corp.amazon.com with ESMTP; 12 May 2021 15:13:29 +0000 Received: from EX13MTAUEB001.ant.amazon.com (iad12-ws-svc-p26-lb9-vlan2.iad.amazon.com [10.40.163.34]) by email-inbound-relay-1a-807d4a99.us-east-1.amazon.com (Postfix) with ESMTPS id 5D4A6A1F8E; Wed, 12 May 2021 15:13:25 +0000 (UTC) Received: from EX13D08UEB003.ant.amazon.com (10.43.60.11) by EX13MTAUEB001.ant.amazon.com (10.43.60.129) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 12 May 2021 15:13:15 +0000 Received: from EX13MTAUEB002.ant.amazon.com (10.43.60.12) by EX13D08UEB003.ant.amazon.com (10.43.60.11) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 12 May 2021 15:13:15 +0000 Received: from uae075a0dfd4c51.ant.amazon.com (10.106.82.24) by mail-relay.amazon.com (10.43.60.234) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 12 May 2021 15:13:13 +0000 From: Ilias Stamatis To: , , CC: , , , , , , , , , Subject: [PATCH v2 09/10] KVM: VMX: Expose TSC scaling to L2 Date: Wed, 12 May 2021 16:09:44 +0100 Message-ID: <20210512150945.4591-10-ilstam@amazon.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210512150945.4591-1-ilstam@amazon.com> References: <20210512150945.4591-1-ilstam@amazon.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Expose the TSC scaling feature to nested guests. Signed-off-by: Ilias Stamatis Reviewed-by: Maxim Levitsky --- arch/x86/kvm/vmx/nested.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c index f1dff1ebaccb..d431e17dbc5b 100644 --- a/arch/x86/kvm/vmx/nested.c +++ b/arch/x86/kvm/vmx/nested.c @@ -2277,7 +2277,8 @@ static void prepare_vmcs02_early(struct vcpu_vmx *vmx, struct vmcs12 *vmcs12) SECONDARY_EXEC_ENABLE_USR_WAIT_PAUSE | SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY | SECONDARY_EXEC_APIC_REGISTER_VIRT | - SECONDARY_EXEC_ENABLE_VMFUNC); + SECONDARY_EXEC_ENABLE_VMFUNC | + SECONDARY_EXEC_TSC_SCALING); if (nested_cpu_has(vmcs12, CPU_BASED_ACTIVATE_SECONDARY_CONTROLS)) exec_control |= vmcs12->secondary_vm_exec_control; @@ -6479,7 +6480,8 @@ void nested_vmx_setup_ctls_msrs(struct nested_vmx_msrs *msrs, u32 ept_caps) SECONDARY_EXEC_RDRAND_EXITING | SECONDARY_EXEC_ENABLE_INVPCID | SECONDARY_EXEC_RDSEED_EXITING | - SECONDARY_EXEC_XSAVES; + SECONDARY_EXEC_XSAVES | + SECONDARY_EXEC_TSC_SCALING; /* * We can emulate "VMCS shadowing," even if the hardware