From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Jones Subject: [kvm-unit-tests PATCH v5 08/11] libcflat: add IS_ALIGNED() macro, and page sizes Date: Thu, 10 Nov 2016 18:21:18 +0100 Message-ID: <1478798481-25030-9-git-send-email-drjones@redhat.com> References: <1478798481-25030-1-git-send-email-drjones@redhat.com> 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 To: kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, qemu-devel@nongnu.org, qemu-arm@nongnu.org Return-path: Received: from mx1.redhat.com ([209.132.183.28]:32788 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935049AbcKJRVr (ORCPT ); Thu, 10 Nov 2016 12:21:47 -0500 In-Reply-To: <1478798481-25030-1-git-send-email-drjones@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: 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] Signed-off-by: Andrew Jones --- lib/libcflat.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lib/libcflat.h b/lib/libcflat.h index 82005f5d014f..143fc53061fe 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 (0x1000) +#define SZ_64K (0x10000) +#define SZ_2M (0x200000) +#define SZ_1G (0x40000000) typedef uint8_t u8; typedef int8_t s8; -- 2.7.4