From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by 10.25.150.194 with SMTP id y185csp1205119lfd; Mon, 14 Nov 2016 13:09:06 -0800 (PST) X-Received: by 10.55.157.195 with SMTP id g186mr18741379qke.13.1479157746436; Mon, 14 Nov 2016 13:09:06 -0800 (PST) Return-Path: Received: from mx1.redhat.com (mx1.redhat.com. [209.132.183.28]) by mx.google.com with ESMTPS id y48si4321926qty.300.2016.11.14.13.09.06 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 14 Nov 2016 13:09:06 -0800 (PST) Received-SPF: pass (google.com: domain of drjones@redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; Authentication-Results: mx.google.com; spf=pass (google.com: domain of drjones@redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=drjones@redhat.com Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 7ECA68123F; Mon, 14 Nov 2016 21:09:05 +0000 (UTC) Received: from kamzik.brq.redhat.com (kamzik.brq.redhat.com [10.34.1.143]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id uAEL8fjb014878; Mon, 14 Nov 2016 16:09:02 -0500 From: Andrew Jones To: kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, qemu-devel@nongnu.org, qemu-arm@nongnu.org Cc: pbonzini@redhat.com, andre.przywara@arm.com, peter.maydell@linaro.org, alex.bennee@linaro.org, marc.zyngier@arm.com, eric.auger@redhat.com, christoffer.dall@linaro.org, Peter Xu Subject: [kvm-unit-tests PATCH v6 08/11] libcflat: add IS_ALIGNED() macro, and page sizes Date: Mon, 14 Nov 2016 22:08:36 +0100 Message-Id: <1479157719-31021-9-git-send-email-drjones@redhat.com> In-Reply-To: <1479157719-31021-1-git-send-email-drjones@redhat.com> References: <1479157719-31021-1-git-send-email-drjones@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Mon, 14 Nov 2016 21:09:05 +0000 (UTC) X-TUID: yDTXnge+ichR From: Peter Xu These macros will be useful to do page alignment checks. Reviewed-by: Andre Przywara Signed-off-by: Peter Xu [drew: also added SZ_64K and changed to shifts] Signed-off-by: Andrew Jones --- v6: change to shifts [Alex] --- lib/libcflat.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lib/libcflat.h b/lib/libcflat.h index 82005f5d014f..244e40a724be 100644 --- a/lib/libcflat.h +++ b/lib/libcflat.h @@ -33,6 +33,12 @@ #define __ALIGN_MASK(x, mask) (((x) + (mask)) & ~(mask)) #define __ALIGN(x, a) __ALIGN_MASK(x, (typeof(x))(a) - 1) #define ALIGN(x, a) __ALIGN((x), (a)) +#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0) + +#define SZ_4K (1 << 12) +#define SZ_64K (1 << 16) +#define SZ_2M (1 << 21) +#define SZ_1G (1 << 30) typedef uint8_t u8; typedef int8_t s8; -- 2.7.4