From nobody Thu Sep 18 07:00:25 2025 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 CDB7AC4167B for ; Thu, 8 Dec 2022 23:36:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230252AbiLHXgO (ORCPT ); Thu, 8 Dec 2022 18:36:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45540 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230076AbiLHXfz (ORCPT ); Thu, 8 Dec 2022 18:35:55 -0500 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9E9096BCA7; Thu, 8 Dec 2022 15:35:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1670542554; x=1702078554; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=+sQP4o0OJhYPC5qL5BglaZeRAlQ+9kwaddW+ppgbLVk=; b=RLwThGfJGe21vbvqdstR1tedwwtkM7smjuq/XxWH5B0sXvDZPgy454kl eTyvXQxTKbMGwlcGQjIMF3o96vUZodte6mEzkFdDWZoYPglms9S7WbW7f ubLyPpGrkB4chNXeVkKlgC/LZjGtfLTyN9oKA1tXR9lyyZmBo+3T5B5vL jj8Zc0nF+iQ6IHEw5C/tUKuKWoZHUCtGujWFQ77CRR4NuNLPPiAYMaEjr tBsmiWo+0Y3nfcviqIwDOiNIqq/WbwOHXtMPO0HX+WIH1hABjtC4cQMU6 D1lwJQ+HzOMqq+lh1rkN5TLbN/gAgmAj4m51Cp8L4MYacUi0FHTJHe9QG Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10555"; a="403586493" X-IronPort-AV: E=Sophos;i="5.96,228,1665471600"; d="scan'208";a="403586493" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Dec 2022 15:35:53 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10555"; a="677950904" X-IronPort-AV: E=Sophos;i="5.96,228,1665471600"; d="scan'208";a="677950904" Received: from ls.sc.intel.com (HELO localhost) ([143.183.96.54]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Dec 2022 15:35:53 -0800 From: isaku.yamahata@intel.com To: kvm@vger.kernel.org, linux-kernel@vger.kernel.org Cc: isaku.yamahata@intel.com, isaku.yamahata@gmail.com, Paolo Bonzini , Sean Christopherson , David Matlack Subject: [RFC PATCH v2 04/15] KVM: TDX: Pass size to tdx_measure_page() Date: Thu, 8 Dec 2022 15:35:39 -0800 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Xiaoyao Li Extend tdx_measure_page() to pass size info so that it can measure large page as well. Signed-off-by: Xiaoyao Li Signed-off-by: Isaku Yamahata --- arch/x86/kvm/vmx/tdx.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/arch/x86/kvm/vmx/tdx.c b/arch/x86/kvm/vmx/tdx.c index 4f8479c20553..5b392d9baa25 100644 --- a/arch/x86/kvm/vmx/tdx.c +++ b/arch/x86/kvm/vmx/tdx.c @@ -1273,13 +1273,15 @@ void tdx_load_mmu_pgd(struct kvm_vcpu *vcpu, hpa_t = root_hpa, int pgd_level) td_vmcs_write64(to_tdx(vcpu), SHARED_EPT_POINTER, root_hpa & PAGE_MASK); } =20 -static void tdx_measure_page(struct kvm_tdx *kvm_tdx, hpa_t gpa) +static void tdx_measure_page(struct kvm_tdx *kvm_tdx, hpa_t gpa, int size) { struct tdx_module_output out; u64 err; int i; =20 - for (i =3D 0; i < PAGE_SIZE; i +=3D TDX_EXTENDMR_CHUNKSIZE) { + WARN_ON_ONCE(size % TDX_EXTENDMR_CHUNKSIZE); + + for (i =3D 0; i < size; i +=3D TDX_EXTENDMR_CHUNKSIZE) { err =3D tdh_mr_extend(kvm_tdx->tdr.pa, gpa + i, &out); if (KVM_BUG_ON(err, &kvm_tdx->kvm)) { pr_tdx_error(TDH_MR_EXTEND, err, &out); @@ -1371,7 +1373,7 @@ static int tdx_sept_set_private_spte(struct kvm *kvm,= gfn_t gfn, tdx_unpin(kvm, pfn); return -EIO; } else if (measure) - tdx_measure_page(kvm_tdx, gpa); + tdx_measure_page(kvm_tdx, gpa, KVM_HPAGE_SIZE(level)); =20 return 0; } --=20 2.25.1