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=-6.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 42C5FC43603 for ; Mon, 16 Dec 2019 20:48:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1474A24682 for ; Mon, 16 Dec 2019 20:48:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="JuT3wKT0" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727435AbfLPUsQ (ORCPT ); Mon, 16 Dec 2019 15:48:16 -0500 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:32342 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727036AbfLPUsO (ORCPT ); Mon, 16 Dec 2019 15:48:14 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1576529294; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5QgGQR5lmCzHdU2tw8u26Dp0LVz138MaKuXfv7AyzLc=; b=JuT3wKT0NUxnVUL8Gyg/dpTnyQoBym9nVOgh7O523VxgLg16wTTrR8XwacysfLy3N4Z3VT pxi4oGbx5gpTW6aOO6jv28TTY0FisaXEoQltAep1ztiMamCqhIvgZ3s0jEZoRVpnKQbU75 Im3JH9SwdXCDxTxbinBcqRvqPOntw8c= 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-209-BnUFytWeO2mWLhhFFJvweA-1; Mon, 16 Dec 2019 15:48:12 -0500 X-MC-Unique: BnUFytWeO2mWLhhFFJvweA-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id AA7BC108EE8B; Mon, 16 Dec 2019 20:48:10 +0000 (UTC) Received: from laptop.redhat.com (ovpn-116-117.ams2.redhat.com [10.36.116.117]) by smtp.corp.redhat.com (Postfix) with ESMTP id F38875D9C9; Mon, 16 Dec 2019 20:48:07 +0000 (UTC) From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, maz@kernel.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, qemu-devel@nongnu.org, qemu-arm@nongnu.org Cc: drjones@redhat.com, andrew.murray@arm.com, andre.przywara@arm.com, peter.maydell@linaro.org, alexandru.elisei@arm.com Subject: [kvm-unit-tests PATCH 01/10] arm64: Provide read/write_sysreg_s Date: Mon, 16 Dec 2019 21:47:48 +0100 Message-Id: <20191216204757.4020-2-eric.auger@redhat.com> In-Reply-To: <20191216204757.4020-1-eric.auger@redhat.com> References: <20191216204757.4020-1-eric.auger@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Content-Transfer-Encoding: quoted-printable Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Andrew Jones Sometimes we need to test access to system registers which are missing assembler mnemonics. Signed-off-by: Andrew Jones Reviewed-by: Alexandru Elisei --- lib/arm64/asm/sysreg.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/lib/arm64/asm/sysreg.h b/lib/arm64/asm/sysreg.h index a03830b..a45eebd 100644 --- a/lib/arm64/asm/sysreg.h +++ b/lib/arm64/asm/sysreg.h @@ -38,6 +38,17 @@ asm volatile("msr " xstr(r) ", %x0" : : "rZ" (__val)); \ } while (0) =20 +#define read_sysreg_s(r) ({ \ + u64 __val; \ + asm volatile("mrs_s %0, " xstr(r) : "=3Dr" (__val)); \ + __val; \ +}) + +#define write_sysreg_s(v, r) do { \ + u64 __val =3D (u64)v; \ + asm volatile("msr_s " xstr(r) ", %x0" : : "rZ" (__val));\ +} while (0) + asm( " .irp num,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23= ,24,25,26,27,28,29,30\n" " .equ .L__reg_num_x\\num, \\num\n" --=20 2.20.1