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 1BE11C4167B for ; Sun, 24 Apr 2022 10:16:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239042AbiDXKTI (ORCPT ); Sun, 24 Apr 2022 06:19:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59956 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238998AbiDXKTA (ORCPT ); Sun, 24 Apr 2022 06:19:00 -0400 Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 04FD02A70E; Sun, 24 Apr 2022 03:15:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1650795360; x=1682331360; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=e1HVGt2MfbFAhIqpB5yM3pi/exzDn5R49eSSkwTGqR4=; b=ldOvGh1JoeHpyzGjKbU5FfQHvr2idu2De6YDxFHC+ttUivtLhLmVCevo mor9wdJee7/mSFkKj+UUROyqmN0jfzXuKOLaMsPPE35zmFYyTo40VHwxk aGcDP1tfxXzinsg1eRGj+vQ1pYFmEBFhatmCU9g38qKd6Oy2KoK16erWz 2EMA+CPD4E8AFtkWjhzTdSl3itgvnOLVsABdXPkq0Ff5DV2F4eXzKzLQF sNxiv5ynbJEgeO5flI32NUdGGp1HbmuoCFddJSDkXreg3h7FU0T0F29cx 3keybRtEd6XM/aOAaASd1jIF85H0PikgC/09SpgK1tgkP/xz8OEAosR4U w==; X-IronPort-AV: E=McAfee;i="6400,9594,10326"; a="264813942" X-IronPort-AV: E=Sophos;i="5.90,286,1643702400"; d="scan'208";a="264813942" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Apr 2022 03:15:58 -0700 X-IronPort-AV: E=Sophos;i="5.90,286,1643702400"; d="scan'208";a="616086707" Received: from 984fee00be24.jf.intel.com ([10.165.54.246]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Apr 2022 03:15:58 -0700 From: Lei Wang To: pbonzini@redhat.com, seanjc@google.com, vkuznets@redhat.com, wanpengli@tencent.com, jmattson@google.com, joro@8bytes.org Cc: lei4.wang@intel.com, chenyi.qiang@intel.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v7 1/8] KVM: VMX: Introduce PKS VMCS fields Date: Sun, 24 Apr 2022 03:15:50 -0700 Message-Id: <20220424101557.134102-2-lei4.wang@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220424101557.134102-1-lei4.wang@intel.com> References: <20220424101557.134102-1-lei4.wang@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Chenyi Qiang PKS(Protection Keys for Supervisor Pages) is a feature that extends the Protection Key architecture to support thread-specific permission restrictions on supervisor pages. A new PKS MSR(PKRS) is defined in kernel to support PKS, which holds a set of permissions associated with each protection domain. Two VMCS fields {HOST,GUEST}_IA32_PKRS are introduced in {host,guest}-state area to store the respective values of PKRS. Every VM exit saves PKRS into guest-state area. If VM_EXIT_LOAD_IA32_PKRS = 1, VM exit loads PKRS from the host-state area. If VM_ENTRY_LOAD_IA32_PKRS = 1, VM entry loads PKRS from the guest-state area. Signed-off-by: Chenyi Qiang Reviewed-by: Jim Mattson --- arch/x86/include/asm/vmx.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h index 0ffaa3156a4e..7962d506ba91 100644 --- a/arch/x86/include/asm/vmx.h +++ b/arch/x86/include/asm/vmx.h @@ -95,6 +95,7 @@ #define VM_EXIT_CLEAR_BNDCFGS 0x00800000 #define VM_EXIT_PT_CONCEAL_PIP 0x01000000 #define VM_EXIT_CLEAR_IA32_RTIT_CTL 0x02000000 +#define VM_EXIT_LOAD_IA32_PKRS 0x20000000 #define VM_EXIT_ALWAYSON_WITHOUT_TRUE_MSR 0x00036dff @@ -108,6 +109,7 @@ #define VM_ENTRY_LOAD_BNDCFGS 0x00010000 #define VM_ENTRY_PT_CONCEAL_PIP 0x00020000 #define VM_ENTRY_LOAD_IA32_RTIT_CTL 0x00040000 +#define VM_ENTRY_LOAD_IA32_PKRS 0x00400000 #define VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR 0x000011ff @@ -245,12 +247,16 @@ enum vmcs_field { GUEST_BNDCFGS_HIGH = 0x00002813, GUEST_IA32_RTIT_CTL = 0x00002814, GUEST_IA32_RTIT_CTL_HIGH = 0x00002815, + GUEST_IA32_PKRS = 0x00002818, + GUEST_IA32_PKRS_HIGH = 0x00002819, HOST_IA32_PAT = 0x00002c00, HOST_IA32_PAT_HIGH = 0x00002c01, HOST_IA32_EFER = 0x00002c02, HOST_IA32_EFER_HIGH = 0x00002c03, HOST_IA32_PERF_GLOBAL_CTRL = 0x00002c04, HOST_IA32_PERF_GLOBAL_CTRL_HIGH = 0x00002c05, + HOST_IA32_PKRS = 0x00002c06, + HOST_IA32_PKRS_HIGH = 0x00002c07, PIN_BASED_VM_EXEC_CONTROL = 0x00004000, CPU_BASED_VM_EXEC_CONTROL = 0x00004002, EXCEPTION_BITMAP = 0x00004004, -- 2.25.1