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=-17.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 6D738C4338F for ; Thu, 12 Aug 2021 19:05:03 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 1DD68610A7 for ; Thu, 12 Aug 2021 19:05:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 1DD68610A7 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org 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=PVVnkd38E4rnl0fc0WoQC37qIF3k3a0nxUmHuGAii/w=; b=Z3cZwDi7/hSoyy V8U9P8sADVk3oLAQwfA24nxFq0I2yCBm+IbBbgh2639PSErqs9OOTI7hYnRmW9X4S+XmxoDUTnOHf ruI8V1j8mEs7z1ZVuIK367FmjL/zcQVG51Nz5nzS8vbAz2JxoI+M/rDnJP/TjgnhNQmlVS42EnbfJ 2T3tpaiUEy7kazzasIuEPVX0wwP2rjN73Bpeka2Ke2P5yBHdsSKmw6JxJzKY9+MiV19NxfcehEik0 MUwMdCTLshd6P9AXjYUxlQJaXr3Et0P8aRcoJbOk+a3bFONnyC9w/mzJpR0XCFW5y9xbzURGJo6oF OUNjUbqYyF0ArVHQ+Cxw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mEFyQ-00Axa0-Jp; Thu, 12 Aug 2021 19:02:38 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mEFyM-00AxY7-Eu for linux-arm-kernel@lists.infradead.org; Thu, 12 Aug 2021 19:02:35 +0000 Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E8A9C610A3; Thu, 12 Aug 2021 19:02:33 +0000 (UTC) Received: from sofa.misterjones.org ([185.219.108.64] helo=why.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1mEFyK-004c9r-A5; Thu, 12 Aug 2021 20:02:32 +0100 From: Marc Zyngier To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= , Will Deacon , Catalin Marinas , Mark Rutland , Ard Biesheuvel , Florian Fainelli , bcm-kernel-feedback-list@broadcom.com, kernel-team@android.com Subject: [PATCH 1/5] arm64: Directly expand __init_el2_nvhe_prepare_eret where needed Date: Thu, 12 Aug 2021 20:02:09 +0100 Message-Id: <20210812190213.2601506-2-maz@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210812190213.2601506-1-maz@kernel.org> References: <20210812190213.2601506-1-maz@kernel.org> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, zajec5@gmail.com, will@kernel.org, catalin.marinas@arm.com, mark.rutland@arm.com, ardb@kernel.org, f.fainelli@gmail.com, bcm-kernel-feedback-list@broadcom.com, kernel-team@android.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210812_120234_599922_10A71061 X-CRM114-Status: GOOD ( 14.70 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org As we are about to enable taking exceptions extremely early, it becomes pointless to pre-populate SPSR_EL2 in init_el2_state. We already have the stuck-in-VHE handling code that needs some special casing, so let's bite the bullet and get rid of the macros by expanding them where needed. Signed-off-by: Marc Zyngier --- arch/arm64/include/asm/el2_setup.h | 6 ------ arch/arm64/kernel/head.S | 2 ++ 2 files changed, 2 insertions(+), 6 deletions(-) diff --git a/arch/arm64/include/asm/el2_setup.h b/arch/arm64/include/asm/el2_setup.h index 21fa330f498d..0b5c8033eaf2 100644 --- a/arch/arm64/include/asm/el2_setup.h +++ b/arch/arm64/include/asm/el2_setup.h @@ -164,11 +164,6 @@ .Lskip_fgt_\@: .endm -.macro __init_el2_nvhe_prepare_eret - mov x0, #INIT_PSTATE_EL1 - msr spsr_el2, x0 -.endm - /** * Initialize EL2 registers to sane values. This should be called early on all * cores that were booted in EL2. Note that everything gets initialised as @@ -189,7 +184,6 @@ __init_el2_nvhe_cptr __init_el2_nvhe_sve __init_el2_fgt - __init_el2_nvhe_prepare_eret .endm #endif /* __ARM_KVM_INIT_H__ */ diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S index c5c994a73a64..9d5aa56a98cc 100644 --- a/arch/arm64/kernel/head.S +++ b/arch/arm64/kernel/head.S @@ -547,6 +547,8 @@ SYM_INNER_LABEL(init_el2, SYM_L_LOCAL) mov_q x0, INIT_SCTLR_EL1_MMU_OFF msr sctlr_el1, x0 + mov_q x0, INIT_PSTATE_EL1 + msr spsr_el2, x0 msr elr_el2, lr mov w0, #BOOT_CPU_MODE_EL2 eret -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel