From patchwork Wed Sep 14 08:34:45 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Will Deacon X-Patchwork-Id: 12975789 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 05F9EC6FA8B for ; Wed, 14 Sep 2022 08:36:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230189AbiINIgC (ORCPT ); Wed, 14 Sep 2022 04:36:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36146 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230188AbiINIft (ORCPT ); Wed, 14 Sep 2022 04:35:49 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E8EFA696E3 for ; Wed, 14 Sep 2022 01:35:45 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 877196192A for ; Wed, 14 Sep 2022 08:35:45 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D9CB1C43141; Wed, 14 Sep 2022 08:35:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1663144544; bh=jj0KRwqJsGqbuaGft+eGpD/iOl0pF+Q/VTKAhx/Vl3g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=A9eTgKz2mtqaXuLdjw/KaFDJc+kWSV9bEBbhWl01FO/LgYlfgGSu8h3dIde/xu7EH 7GMhVUMeXNKBHXo1UmKzeMDF+rY79rYCDj9RR024LYoQgTe/qZZpUbx1aY77HLm3ol okw5euXVBmnxwwsD/ROlZxMgkssOrr87eOaByunbgCinPu8v4tGgQtDmWjZ6jPQjls p0ebENFRxss2zJA+aRAy1q9x+ijGOtTGi09vunPVx9AXTjj8/drdHsXWYlZzv8m0G+ dh5gOFl7HVVMX50/ljdzWs03D68mrdxV4AH43Q7T7hM7FWSzjf88mzIMRzboOr6kVh UkNrYzavj/uTQ== From: Will Deacon To: kvmarm@lists.cs.columbia.edu Cc: Will Deacon , Sean Christopherson , Vincent Donnefort , Alexandru Elisei , Catalin Marinas , James Morse , Chao Peng , Quentin Perret , Suzuki K Poulose , Mark Rutland , Fuad Tabba , Oliver Upton , Marc Zyngier , kernel-team@android.com, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 10/25] KVM: arm64: Add hyp_spinlock_t static initializer Date: Wed, 14 Sep 2022 09:34:45 +0100 Message-Id: <20220914083500.5118-11-will@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20220914083500.5118-1-will@kernel.org> References: <20220914083500.5118-1-will@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Fuad Tabba Introduce a static initializer macro for 'hyp_spinlock_t' so that it is straightforward to instantiate global locks at EL2. This will be later utilised for locking the VM table in the hypervisor. Signed-off-by: Fuad Tabba Signed-off-by: Will Deacon --- arch/arm64/kvm/hyp/include/nvhe/spinlock.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/arch/arm64/kvm/hyp/include/nvhe/spinlock.h b/arch/arm64/kvm/hyp/include/nvhe/spinlock.h index 4652fd04bdbe..7c7ea8c55405 100644 --- a/arch/arm64/kvm/hyp/include/nvhe/spinlock.h +++ b/arch/arm64/kvm/hyp/include/nvhe/spinlock.h @@ -28,9 +28,17 @@ typedef union hyp_spinlock { }; } hyp_spinlock_t; +#define __HYP_SPIN_LOCK_INITIALIZER \ + { .__val = 0 } + +#define __HYP_SPIN_LOCK_UNLOCKED \ + ((hyp_spinlock_t) __HYP_SPIN_LOCK_INITIALIZER) + +#define DEFINE_HYP_SPINLOCK(x) hyp_spinlock_t x = __HYP_SPIN_LOCK_UNLOCKED + #define hyp_spin_lock_init(l) \ do { \ - *(l) = (hyp_spinlock_t){ .__val = 0 }; \ + *(l) = __HYP_SPIN_LOCK_UNLOCKED; \ } while (0) static inline void hyp_spin_lock(hyp_spinlock_t *lock)