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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DC660C433FE for ; Wed, 17 Nov 2021 08:10:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BC0D261BE2 for ; Wed, 17 Nov 2021 08:10:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234426AbhKQINV (ORCPT ); Wed, 17 Nov 2021 03:13:21 -0500 Received: from mail.kernel.org ([198.145.29.99]:55710 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232086AbhKQINV (ORCPT ); Wed, 17 Nov 2021 03:13:21 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id A970D61B7D; Wed, 17 Nov 2021 08:10:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1637136623; bh=r95Z+70f1SxANDfTBZzjaeB9B3eWiVZJu26oU6UqTm8=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=jzK9va+Hbe2/5w6dtqZcck3jrN6+Uoi/rIiYnVzZD0f1gE8MPIqO9hleJ7aTMquvg S+fpeodj1jERXc5vQNt9suP08x1sTEZuBjYf7Q4IRH7E9HHacG/g4Ay+e/MTkSmFCO 0Iu+c+GYTogBJ4RfaH4QmFC/XT9IXNeVAA98bFj/mCEtwWSg5Kad59PUusa9WPjaff EPXfajoX1kVeo9G7I6hqcanqSuNm9NqNybdu3doO069b3WUnv1wb6drsSMKeaBnL17 aJuDSyWE7vamtBFo0FMnTWRTvt6r93FV5Wb2xHB1YckGdWKsLrvK2TnINf1QjebbLs GP0xUEt+hBJEA== Message-ID: Subject: Re: [PATCH v19 3/5] tpm: tpm_tis: Verify TPM_STS register is valid after locality request From: Jarkko Sakkinen To: amirmizi6@gmail.com, Eyal.Cohen@nuvoton.com, oshrialkoby85@gmail.com, alexander.steffen@infineon.com, robh+dt@kernel.org, mark.rutland@arm.com, peterhuewe@gmx.de, jgg@ziepe.ca, arnd@arndb.de, gregkh@linuxfoundation.org, benoit.houyere@st.com, eajames@linux.ibm.com, joel@jms.id.au Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-integrity@vger.kernel.org, oshri.alkoby@nuvoton.com, tmaimon77@gmail.com, gcwilson@us.ibm.com, kgoldman@us.ibm.com, Dan.Morav@nuvoton.com, oren.tanami@nuvoton.com, shmulik.hager@nuvoton.com, amir.mizinski@nuvoton.com Date: Wed, 17 Nov 2021 10:10:20 +0200 In-Reply-To: <20211104140211.6258-4-amirmizi6@gmail.com> References: <20211104140211.6258-1-amirmizi6@gmail.com> <20211104140211.6258-4-amirmizi6@gmail.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: base64 User-Agent: Evolution 3.40.4-1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gVGh1LCAyMDIxLTExLTA0IGF0IDE2OjAyICswMjAwLCBhbWlybWl6aTZAZ21haWwuY29tIHdy b3RlOgo+IEZyb206IEFtaXIgTWl6aW5za2kgPGFtaXJtaXppNkBnbWFpbC5jb20+Cj4gCj4gQW4g aW52YWxpZCBUUE1fU1RTIHZhbHVlIGNvdWxkIGJlIHVzZWQgd2hlbiB0aGUgZm9sbG93aW5nIHR3 byBldmVudHMgb2NjdXI6Cj4gVFBNIGRvZXMgbm90IHVwZGF0ZSBUUE1fU1RTIHJlZ2lzdGVyIGFm dGVyIGEgbG9jYWxpdHkgcmVxdWVzdCAoVFBNX1NUUwo+IEluaXRpYWwgdmFsdWUgPSAweEZGKSwg YW5kIGEgVFBNX1NUUyByZWdpc3RlciByZWFkIG9jY3VycyBpbiB0aGUKPiB0cG1fdGlzX3N0YXR1 cyhjaGlwKSBmdW5jdGlvbiBjYWxsLgo+IAo+IEluIHByb2JlX2l0cG0oKSwgYSBjYWxsIHRvIHRw bV90aXNfc2VuZF9kYXRhKCkgZnVuY3Rpb24gaXMgbWFkZSBhZnRlciBhCj4gcmVxdWVzdF9sb2Nh bGl0eSgpIGNhbGwsIGFuZCB0aGUgY29uZGl0aW9uCj4gKCJpZiAoKHN0YXR1cyAmIFRQTV9TVFNf Q09NTUFORF9SRUFEWSkgPT0gMCkiKSBpcyBjaGVja2VkLiBBdCB0aGlzIG1vbWVudAo+IGlmIHRo ZSBzdGF0dXMgdmFsdWUgaXMgMHhGRiwgdGhlbiBpdCBpcyBjb25zaWRlcmVkLCB3cm9uZ2x5LCBp biDigJxyZWFkeeKAnQo+IHN0YXRlIChieSBjaGVja2luZyBvbmx5IG9uZSBiaXQpLiBIb3dldmVy LCBhdCB0aGlzIG1vbWVudCB0aGUgVFBNIGlzLCBpbgo+IGZhY3QsIGluICJJZGxlIiBzdGF0ZSBh bmQgcmVtYWlucyBpbiAiSWRsZSIgc3RhdGUgYmVjYXVzZQo+ICJ0cG1fdGlzX3JlYWR5KGNoaXAp OyIgd2FzIG5vdCBleGVjdXRlZC4KPiBXYWl0aW5nIGZvciB0aGUgY29uZGl0aW9uIFRQTV9TVFMu dHBtR28gPT0gMCwgd2lsbCBlbnN1cmUgdGhhdCB0aGUgVFBNCj4gc3RhdHVzIHJlZ2lzdGVyIGhh cyB0aGUgY29ycmVjdCB2YWx1ZS4KCllvdSBzaG91bGQgdXNlIGltcGVyYXRpdmUgZm9ybSBpbiBj b21taXQgbWVzc2FnZSwgZS5nLiAiV2FpdCBmb3IgVFBNX1NUUy50cG1Hbwp0byByZXNldCB0byB6 ZXJvLCAuLi4iLgoKPiAKPiBTdWdnZXN0ZWQtYnk6IEJlbm9pdCBIb3V5ZXJlIDxiZW5vaXQuaG91 eWVyZUBzdC5jb20+Cj4gU2lnbmVkLW9mZi1ieTogQW1pciBNaXppbnNraSA8YW1pcm1pemk2QGdt YWlsLmNvbT4KPiAtLS0KPiDCoGRyaXZlcnMvY2hhci90cG0vdHBtX3Rpc19jb3JlLmMgfCA2ICsr KysrLQo+IMKgMSBmaWxlIGNoYW5nZWQsIDUgaW5zZXJ0aW9ucygrKSwgMSBkZWxldGlvbigtKQo+ IAo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2NoYXIvdHBtL3RwbV90aXNfY29yZS5jIGIvZHJpdmVy cy9jaGFyL3RwbS90cG1fdGlzX2NvcmUuYwo+IGluZGV4IDZmZjhiNDQuLjc3MDY4NWEgMTAwNjQ0 Cj4gLS0tIGEvZHJpdmVycy9jaGFyL3RwbS90cG1fdGlzX2NvcmUuYwo+ICsrKyBiL2RyaXZlcnMv Y2hhci90cG0vdHBtX3Rpc19jb3JlLmMKPiBAQCAtMTc3LDggKzE3NywxMiBAQCBzdGF0aWMgaW50 IHJlcXVlc3RfbG9jYWxpdHkoc3RydWN0IHRwbV9jaGlwICpjaGlwLCBpbnQgbCkKPiDCoMKgwqDC oMKgwqDCoMKgfSBlbHNlIHsKPiDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoC8qIHdh aXQgZm9yIGJ1cnN0Y291bnQgKi8KPiDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoGRv IHsKPiAtwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoGlmIChj aGVja19sb2NhbGl0eShjaGlwLCBsKSkKPiArwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoGlmIChjaGVja19sb2NhbGl0eShjaGlwLCBsKSkgewo+ICvCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoGlm ICh0cG1fdGlzX3dhaXRfZm9yX3N0YXQoY2hpcCwgVFBNX1NUU19HTywgMCwgY2hpcC0+dGltZW91 dF9jLAo+ICvCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgICZwcml2LT5pbnRfcXVldWUsIGZhbHNlKSA8IDApCgpZb3Ugd291bGQgbmVlZCB0byBl eHBsYWluIHRoaXMgd2l0aCBhbiBpbmxpbmUgY29tbWVudC4KCj4gK8KgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoHJldHVybiAtRVRJTUU7Cj4gwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoHJldHVybiBsOwo+ICvCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgfQo+IMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoHRwbV9tc2xlZXAoVFBNX1RJTUVPVVQpOwo+IMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgfSB3aGlsZSAodGltZV9iZWZvcmUoamlmZmllcywg c3RvcCkpOwo+IMKgwqDCoMKgwqDCoMKgwqB9CgoKL0phcmtrbwoK