From mboxrd@z Thu Jan 1 00:00:00 1970 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 00A55C433FE for ; Mon, 28 Feb 2022 02:15:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232513AbiB1CPm (ORCPT ); Sun, 27 Feb 2022 21:15:42 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60588 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231179AbiB1CPc (ORCPT ); Sun, 27 Feb 2022 21:15:32 -0500 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EB106527F5; Sun, 27 Feb 2022 18:14:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1646014495; x=1677550495; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Ge5i1ep11h5AX/7QSE6NzBNHfdf54JJ+XyE9UORI3J0=; b=C10hkV/UEYvXOBkhDhLdoJBnjcqTuIPuJVPpW/S+rJdwTT0GvNbxbat6 m7zCXrxodHqlA7dwabkwFj3AcIJi6OuDceUPfcIc6c/vxiWHSfY/SZG5W Gz4gvXlILyyhdczz47rlo5CJErZUQ98pKxS3sr6VnaiGwMQGU2veuEXO7 RLpu+0JcLjkM1cp7wSqRnxQqoB+tMbup/XlythBaEqZBGvWRbyp5mlQzo CFg827UmdnzVlX/PYW+2bRFOKp9D2lkFibeukHQ49+egZcrSqvaIqR4YD rvO35+FOj1jPMxqz4f/uLKWXpCY4prMIzqYedIBMyp7RC+c0YYfWVmPep A==; X-IronPort-AV: E=McAfee;i="6200,9189,10271"; a="240191912" X-IronPort-AV: E=Sophos;i="5.90,142,1643702400"; d="scan'208";a="240191912" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Feb 2022 18:14:12 -0800 X-IronPort-AV: E=Sophos;i="5.90,142,1643702400"; d="scan'208";a="777936907" Received: from jdpanhor-mobl2.amr.corp.intel.com (HELO khuang2-desk.gar.corp.intel.com) ([10.254.49.36]) by fmsmga006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Feb 2022 18:14:08 -0800 From: Kai Huang To: x86@kernel.org Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@intel.com, luto@kernel.org, kvm@vger.kernel.org, pbonzini@redhat.com, seanjc@google.com, hpa@zytor.com, peterz@infradead.org, kirill.shutemov@linux.intel.com, sathyanarayanan.kuppuswamy@linux.intel.com, tony.luck@intel.com, ak@linux.intel.com, dan.j.williams@intel.com, chang.seok.bae@intel.com, keescook@chromium.org, hengqi.arch@bytedance.com, laijs@linux.alibaba.com, metze@samba.org, linux-kernel@vger.kernel.org, kai.huang@intel.com Subject: [RFC PATCH 07/21] x86/virt/tdx: Do TDX module global initialization Date: Mon, 28 Feb 2022 15:12:55 +1300 Message-Id: <2fd6826f9df6793f030d949af8a71dc77f946817.1646007267.git.kai.huang@intel.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Do the TDX module global initialization which requires calling TDH.SYS.INIT once on any logical cpu. Signed-off-by: Kai Huang --- arch/x86/virt/vmx/tdx.c | 11 ++++++++++- arch/x86/virt/vmx/tdx.h | 1 + 2 files changed, 11 insertions(+), 1 deletion(-) diff --git a/arch/x86/virt/vmx/tdx.c b/arch/x86/virt/vmx/tdx.c index 17f16ec6cb28..197c721d5388 100644 --- a/arch/x86/virt/vmx/tdx.c +++ b/arch/x86/virt/vmx/tdx.c @@ -464,11 +464,20 @@ static int __tdx_detect(void) static int init_tdx_module(void) { + int ret; + + /* TDX module global initialization */ + ret = seamcall(TDH_SYS_INIT, 0, 0, 0, 0, NULL, NULL); + if (ret) + goto out; + /* * Return -EFAULT until all steps of TDX module * initialization are done. */ - return -EFAULT; + ret = -EFAULT; +out: + return ret; } static void shutdown_tdx_module(void) diff --git a/arch/x86/virt/vmx/tdx.h b/arch/x86/virt/vmx/tdx.h index dcc1f6dfe378..f0983b1936d8 100644 --- a/arch/x86/virt/vmx/tdx.h +++ b/arch/x86/virt/vmx/tdx.h @@ -38,6 +38,7 @@ struct p_seamldr_info { /* * TDX module SEAMCALL leaf functions */ +#define TDH_SYS_INIT 33 #define TDH_SYS_LP_SHUTDOWN 44 struct tdx_module_output; -- 2.33.1