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: 12975814 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4E625ECAAD3 for ; Wed, 14 Sep 2022 08:41:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=38F/+4NL67OTvct+y1/HYnoNQFPnSRoM+rrFW52gGiY=; b=jdEPv1QUzTzU1I jAJcI9WuDW1dzXC3JbzNyY1e4mk1wYFskamsrruKC1IA3OffcqC6J7RqPwmTY1TUjnPK/jpGWBUFe O6zQ5c7U1Jr9VWVRAGsREPDCkxOw+Ulef0GQMB/G8Kc11YiZfUeH4vd/HVSzJiu9oVf45y73KpRBg EYDE+hGeAx86iCZ1Bwg+DoMQwpvW53+i5WetMgJ7rOlZa4nJDgbwMjcpcca2wG9KeZpwFBpG9Nyxp s9TJcV2wrXLMOCXhXvYtGLssFbAcP4mpK5SgIzjgP5QX/sDKy6+QGClj4MyBWMqPz2Pb+P2kv81V6 G9ng6eyC0HXKcZ3kGWZQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oYNwX-00DeF7-TF; Wed, 14 Sep 2022 08:40:26 +0000 Received: from ams.source.kernel.org ([2604:1380:4601:e00::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oYNs5-00DcA0-9H for linux-arm-kernel@lists.infradead.org; Wed, 14 Sep 2022 08:35:50 +0000 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 ams.source.kernel.org (Postfix) with ESMTPS id 3BABBB8167C; Wed, 14 Sep 2022 08:35:46 +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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220914_013549_539032_53C6407D X-CRM114-Status: GOOD ( 12.97 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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)