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 X-Spam-Level: X-Spam-Status: No, score=-9.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 A717EC388F9 for ; Mon, 2 Nov 2020 18:50:52 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 03F8522275 for ; Mon, 2 Nov 2020 18:50:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="RiQcAGBY" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 03F8522275 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 89F0F4B535; Mon, 2 Nov 2020 13:50:51 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@redhat.com Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ZEWfLZwoMsfr; Mon, 2 Nov 2020 13:50:50 -0500 (EST) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 1E4D44B572; Mon, 2 Nov 2020 13:50:50 -0500 (EST) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id A25F44B552 for ; Mon, 2 Nov 2020 13:50:49 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5P487njdEBMQ for ; Mon, 2 Nov 2020 13:50:48 -0500 (EST) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 8CDF54B36F for ; Mon, 2 Nov 2020 13:50:48 -0500 (EST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1604343048; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=WarnExKV2VXUqG/qe/UCSIgZycztg/vXjgJOImCnVMw=; b=RiQcAGBYmmEWiNTW/KqpozDVk6BLXKLZh71Fq2z8QwqRtRTTtgSLZGh9etKpzZ+2UqQhLY mSwPwi2dfyDBKauEoaOUWOOkWLhEPjZwoVLCWmQkuXimBum2DdVcBF+ixqqnENdFZpJVLd ipEM1GjbVtoKWNraLo3mWA44N4EJMO8= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-321-3uBJKwGbNqurjoh4Nt5a7w-1; Mon, 02 Nov 2020 13:50:44 -0500 X-MC-Unique: 3uBJKwGbNqurjoh4Nt5a7w-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 105B31009E23; Mon, 2 Nov 2020 18:50:43 +0000 (UTC) Received: from kamzik.brq.redhat.com (unknown [10.40.193.222]) by smtp.corp.redhat.com (Postfix) with ESMTP id 960E25C22A; Mon, 2 Nov 2020 18:50:41 +0000 (UTC) From: Andrew Jones To: kvmarm@lists.cs.columbia.edu Subject: [PATCH v2 1/3] KVM: arm64: Don't hide ID registers from userspace Date: Mon, 2 Nov 2020 19:50:35 +0100 Message-Id: <20201102185037.49248-2-drjones@redhat.com> In-Reply-To: <20201102185037.49248-1-drjones@redhat.com> References: <20201102185037.49248-1-drjones@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Cc: maz@kernel.org, xu910121@sina.com, Dave.Martin@arm.com, stable@vger.kernel.org X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu SUQgcmVnaXN0ZXJzIGFyZSBSQVogdW50aWwgdGhleSd2ZSBiZWVuIGFsbG9jYXRlZCBhIHB1cnBv c2UsIGJ1dAp0aGF0IGRvZXNuJ3QgbWVhbiB0aGV5IHNob3VsZCBiZSByZW1vdmVkIGZyb20gdGhl IEtWTV9HRVRfUkVHX0xJU1QKbGlzdC4gU28gZmFyIHdlIG9ubHkgaGF2ZSBvbmUgcmVnaXN0ZXIs IFNZU19JRF9BQTY0WkZSMF9FTDEsIHRoYXQKaXMgaGlkZGVuIGZyb20gdXNlcnNwYWNlIHdoZW4g aXRzIGZ1bmN0aW9uIGlzIG5vdCBwcmVzZW50LiBSZW1vdmluZwp0aGUgdXNlcnNwYWNlIHZpc2li aWxpdHkgY2hlY2tzIGlzIGVub3VnaCB0byByZWV4cG9zZSBpdCwgYXMgaXQKYWxyZWFkeSBiZWhh dmVzIGFzIFJBWiB3aGVuIHRoZSBmdW5jdGlvbiBpcyBub3QgcHJlc2VudC4KCkZpeGVzOiA3MzQz Mzc2MmZjYWUgKCJLVk06IGFybTY0L3N2ZTogU3lzdGVtIHJlZ2lzdGVyIGNvbnRleHQgc3dpdGNo IGFuZCBhY2Nlc3Mgc3VwcG9ydCIpCkNjOiA8c3RhYmxlQHZnZXIua2VybmVsLm9yZz4gIyB2NS4y KwpSZXBvcnRlZC1ieTog5byg5Lic5petIDx4dTkxMDEyMUBzaW5hLmNvbT4KU2lnbmVkLW9mZi1i eTogQW5kcmV3IEpvbmVzIDxkcmpvbmVzQHJlZGhhdC5jb20+Ci0tLQogYXJjaC9hcm02NC9rdm0v c3lzX3JlZ3MuYyB8IDE4ICstLS0tLS0tLS0tLS0tLS0tLQogMSBmaWxlIGNoYW5nZWQsIDEgaW5z ZXJ0aW9uKCspLCAxNyBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS9hcmNoL2FybTY0L2t2bS9z eXNfcmVncy5jIGIvYXJjaC9hcm02NC9rdm0vc3lzX3JlZ3MuYwppbmRleCBmYjEyZDNlZjQyM2Eu LjZmZjBjMTU1MzFjYSAxMDA2NDQKLS0tIGEvYXJjaC9hcm02NC9rdm0vc3lzX3JlZ3MuYworKysg Yi9hcmNoL2FybTY0L2t2bS9zeXNfcmVncy5jCkBAIC0xMTk1LDE2ICsxMTk1LDYgQEAgc3RhdGlj IHVuc2lnbmVkIGludCBzdmVfdmlzaWJpbGl0eShjb25zdCBzdHJ1Y3Qga3ZtX3ZjcHUgKnZjcHUs CiAJcmV0dXJuIFJFR19ISURERU5fVVNFUiB8IFJFR19ISURERU5fR1VFU1Q7CiB9CiAKLS8qIFZp c2liaWxpdHkgb3ZlcnJpZGVzIGZvciBTVkUtc3BlY2lmaWMgSUQgcmVnaXN0ZXJzICovCi1zdGF0 aWMgdW5zaWduZWQgaW50IHN2ZV9pZF92aXNpYmlsaXR5KGNvbnN0IHN0cnVjdCBrdm1fdmNwdSAq dmNwdSwKLQkJCQkgICAgICBjb25zdCBzdHJ1Y3Qgc3lzX3JlZ19kZXNjICpyZCkKLXsKLQlpZiAo dmNwdV9oYXNfc3ZlKHZjcHUpKQotCQlyZXR1cm4gMDsKLQotCXJldHVybiBSRUdfSElEREVOX1VT RVI7Ci19Ci0KIC8qIEdlbmVyYXRlIHRoZSBlbXVsYXRlZCBJRF9BQTY0WkZSMF9FTDEgdmFsdWUg ZXhwb3NlZCB0byB0aGUgZ3Vlc3QgKi8KIHN0YXRpYyB1NjQgZ3Vlc3RfaWRfYWE2NHpmcjBfZWwx KGNvbnN0IHN0cnVjdCBrdm1fdmNwdSAqdmNwdSkKIHsKQEAgLTEyMzEsOSArMTIyMSw2IEBAIHN0 YXRpYyBpbnQgZ2V0X2lkX2FhNjR6ZnIwX2VsMShzdHJ1Y3Qga3ZtX3ZjcHUgKnZjcHUsCiB7CiAJ dTY0IHZhbDsKIAotCWlmIChXQVJOX09OKCF2Y3B1X2hhc19zdmUodmNwdSkpKQotCQlyZXR1cm4g LUVOT0VOVDsKLQogCXZhbCA9IGd1ZXN0X2lkX2FhNjR6ZnIwX2VsMSh2Y3B1KTsKIAlyZXR1cm4g cmVnX3RvX3VzZXIodWFkZHIsICZ2YWwsIHJlZy0+aWQpOwogfQpAQCAtMTI0Niw5ICsxMjMzLDYg QEAgc3RhdGljIGludCBzZXRfaWRfYWE2NHpmcjBfZWwxKHN0cnVjdCBrdm1fdmNwdSAqdmNwdSwK IAlpbnQgZXJyOwogCXU2NCB2YWw7CiAKLQlpZiAoV0FSTl9PTighdmNwdV9oYXNfc3ZlKHZjcHUp KSkKLQkJcmV0dXJuIC1FTk9FTlQ7Ci0KIAllcnIgPSByZWdfZnJvbV91c2VyKCZ2YWwsIHVhZGRy LCBpZCk7CiAJaWYgKGVycikKIAkJcmV0dXJuIGVycjsKQEAgLTE1MTgsNyArMTUwMiw3IEBAIHN0 YXRpYyBjb25zdCBzdHJ1Y3Qgc3lzX3JlZ19kZXNjIHN5c19yZWdfZGVzY3NbXSA9IHsKIAlJRF9T QU5JVElTRUQoSURfQUE2NFBGUjFfRUwxKSwKIAlJRF9VTkFMTE9DQVRFRCg0LDIpLAogCUlEX1VO QUxMT0NBVEVEKDQsMyksCi0JeyBTWVNfREVTQyhTWVNfSURfQUE2NFpGUjBfRUwxKSwgYWNjZXNz X2lkX2FhNjR6ZnIwX2VsMSwgLmdldF91c2VyID0gZ2V0X2lkX2FhNjR6ZnIwX2VsMSwgLnNldF91 c2VyID0gc2V0X2lkX2FhNjR6ZnIwX2VsMSwgLnZpc2liaWxpdHkgPSBzdmVfaWRfdmlzaWJpbGl0 eSB9LAorCXsgU1lTX0RFU0MoU1lTX0lEX0FBNjRaRlIwX0VMMSksIGFjY2Vzc19pZF9hYTY0emZy MF9lbDEsIC5nZXRfdXNlciA9IGdldF9pZF9hYTY0emZyMF9lbDEsIC5zZXRfdXNlciA9IHNldF9p ZF9hYTY0emZyMF9lbDEsIH0sCiAJSURfVU5BTExPQ0FURUQoNCw1KSwKIAlJRF9VTkFMTE9DQVRF RCg0LDYpLAogCUlEX1VOQUxMT0NBVEVEKDQsNyksCi0tIAoyLjI2LjIKCl9fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmt2bWFybSBtYWlsaW5nIGxpc3QKa3Zt YXJtQGxpc3RzLmNzLmNvbHVtYmlhLmVkdQpodHRwczovL2xpc3RzLmNzLmNvbHVtYmlhLmVkdS9t YWlsbWFuL2xpc3RpbmZvL2t2bWFybQo=