From patchwork Thu May 27 15:05:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pasha Tatashin X-Patchwork-Id: 12284529 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=-16.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,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 A494AC4708B for ; Thu, 27 May 2021 15:05:35 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 5119061358 for ; Thu, 27 May 2021 15:05:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5119061358 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=soleen.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 4405B6B0072; Thu, 27 May 2021 11:05:34 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 4157C6B0073; Thu, 27 May 2021 11:05:34 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 1A38D8D0001; Thu, 27 May 2021 11:05:34 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0071.hostedemail.com [216.40.44.71]) by kanga.kvack.org (Postfix) with ESMTP id D183A6B0072 for ; Thu, 27 May 2021 11:05:33 -0400 (EDT) Received: from smtpin20.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 583D41811E9E9 for ; Thu, 27 May 2021 15:05:33 +0000 (UTC) X-FDA: 78187334946.20.8B0B164 Received: from mail-qk1-f176.google.com (mail-qk1-f176.google.com [209.85.222.176]) by imf20.hostedemail.com (Postfix) with ESMTP id C4BD22F9 for ; Thu, 27 May 2021 15:05:22 +0000 (UTC) Received: by mail-qk1-f176.google.com with SMTP id 76so898913qkn.13 for ; Thu, 27 May 2021 08:05:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=soleen.com; s=google; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=l3SGBPbH3T8MZIM5VPxw+w4kFGUdmwAVrjo+9WKhb6A=; b=lKkn7FEbTutFu0AJibWJbh7gvLM6Up0Orzxu/3QynB6mWeF920eLv/nRIAjn0HTWbz kRhnM1FhPgEgKDcFLc0RU7+8HDyuVrDf1nOdQR+DxW+V/MU79MqDfiJMev3LvByNYJcG mosH1G9Mvi/NBnrEeQoBPbalZSrRc9viFcC8kFho3Oq48p2L9WDorq4FQts5PrzjhPvY PQXufesw6t3klHivvCa41fH7WyDUbQwQhgjcy69LGoTTy5HoW5rSaakGdTqk4RRi31+u qU/1ksTD7uZt2uZRkEseLan5+B9wF27wnlPJAwpkKXvmMj1unG3unZvMI0rv/GW8p4o1 xqPA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=l3SGBPbH3T8MZIM5VPxw+w4kFGUdmwAVrjo+9WKhb6A=; b=UAN3nTNNJMuLN9rf2qb7xlMVoGqthGWd5Jtz2O6OieOFOT7WLL1EV1G/NpVw53nfSx myPPYTuYsSfv0UeMCQJJ6utigKN1Lt6//2GLncZoJ2pMU7lFBNXS4sOaigj7kIaSFtdw pEUVBXCSKkLUgq7AY9ZHO+GrvotqEFTJUCSfM5VrKnuyM37I5mRvjMlbrLxzRnygD5Xh 18WKTNJbBWwYqj4Sv1KRssHFzqc1PavHDsmS+Zc/dl4swX8Irwjfw2iDXKghXCf3AvVd G7d0XIHqEG/8dk5Yc9lVI9plCpv5beBKUKDqJRiH0IRTj9Vst7zcJ/oXdozShTdTW3qU vMMA== X-Gm-Message-State: AOAM531uR86ae9aeHJPOSoRliLxzPGiYg8o2fOeBX1OEwjjQL+AinwDi n9OBb7IhrXohWSZbCepNB4no1A== X-Google-Smtp-Source: ABdhPJxOofNUG3149CvRQe7xgHOAYxhjpmqWLXhWUL/moDKhXxMhTLFFTYyF/8yiB65KCQQlF0YIPQ== X-Received: by 2002:a37:f909:: with SMTP id l9mr2053163qkj.428.1622127932312; Thu, 27 May 2021 08:05:32 -0700 (PDT) Received: from localhost.localdomain (c-73-69-118-222.hsd1.nh.comcast.net. [73.69.118.222]) by smtp.gmail.com with ESMTPSA id x10sm1447468qkh.124.2021.05.27.08.05.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 May 2021 08:05:31 -0700 (PDT) From: Pavel Tatashin To: pasha.tatashin@soleen.com, jmorris@namei.org, sashal@kernel.org, ebiederm@xmission.com, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, corbet@lwn.net, catalin.marinas@arm.com, will@kernel.org, linux-arm-kernel@lists.infradead.org, maz@kernel.org, james.morse@arm.com, vladimir.murzin@arm.com, matthias.bgg@gmail.com, linux-mm@kvack.org, mark.rutland@arm.com, steve.capper@arm.com, rfontana@redhat.com, tglx@linutronix.de, selindag@gmail.com, tyhicks@linux.microsoft.com, kernelfans@gmail.com, akpm@linux-foundation.org, madvenka@linux.microsoft.com Subject: [PATCH 02/18] arm64: hyp-stub: Move invalid vector entries into the vectors Date: Thu, 27 May 2021 11:05:10 -0400 Message-Id: <20210527150526.271941-3-pasha.tatashin@soleen.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210527150526.271941-1-pasha.tatashin@soleen.com> References: <20210527150526.271941-1-pasha.tatashin@soleen.com> MIME-Version: 1.0 X-Rspamd-Queue-Id: C4BD22F9 Authentication-Results: imf20.hostedemail.com; dkim=pass header.d=soleen.com header.s=google header.b=lKkn7FEb; spf=pass (imf20.hostedemail.com: domain of pasha.tatashin@soleen.com designates 209.85.222.176 as permitted sender) smtp.mailfrom=pasha.tatashin@soleen.com; dmarc=none X-Rspamd-Server: rspam04 X-Stat-Signature: 7hcrxozh3i7dx69kif8yfwffb58iqhby X-HE-Tag: 1622127922-52576 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: James Morse Most of the hyp-stub's vector entries are invalid. These are each a unique function that branches to itself. To move these into the vectors, merge the ventry and invalid_vector macros and give each one a unique name. This means we can copy the hyp-stub as it is self contained within its vectors. Signed-off-by: James Morse [Fixed merging issues] Signed-off-by: Pavel Tatashin --- arch/arm64/kernel/hyp-stub.S | 62 +++++++++++++++--------------------- 1 file changed, 26 insertions(+), 36 deletions(-) diff --git a/arch/arm64/kernel/hyp-stub.S b/arch/arm64/kernel/hyp-stub.S index 91aab4121463..18a97bee3779 100644 --- a/arch/arm64/kernel/hyp-stub.S +++ b/arch/arm64/kernel/hyp-stub.S @@ -16,31 +16,38 @@ #include #include +.macro invalid_vector label +SYM_CODE_START_LOCAL(\label) + .align 7 + b \label +SYM_CODE_END(\label) +.endm + .text .pushsection .hyp.text, "ax" .align 11 SYM_CODE_START(__hyp_stub_vectors) - ventry el2_sync_invalid // Synchronous EL2t - ventry el2_irq_invalid // IRQ EL2t - ventry el2_fiq_invalid // FIQ EL2t - ventry el2_error_invalid // Error EL2t - - ventry elx_sync // Synchronous EL2h - ventry el2_irq_invalid // IRQ EL2h - ventry el2_fiq_invalid // FIQ EL2h - ventry el2_error_invalid // Error EL2h - - ventry elx_sync // Synchronous 64-bit EL1 - ventry el1_irq_invalid // IRQ 64-bit EL1 - ventry el1_fiq_invalid // FIQ 64-bit EL1 - ventry el1_error_invalid // Error 64-bit EL1 - - ventry el1_sync_invalid // Synchronous 32-bit EL1 - ventry el1_irq_invalid // IRQ 32-bit EL1 - ventry el1_fiq_invalid // FIQ 32-bit EL1 - ventry el1_error_invalid // Error 32-bit EL1 + invalid_vector hyp_stub_el2t_sync_invalid // Synchronous EL2t + invalid_vector hyp_stub_el2t_irq_invalid // IRQ EL2t + invalid_vector hyp_stub_el2t_fiq_invalid // FIQ EL2t + invalid_vector hyp_stub_el2t_error_invalid // Error EL2t + + ventry elx_sync // Synchronous EL2h + invalid_vector hyp_stub_el2h_irq_invalid // IRQ EL2h + invalid_vector hyp_stub_el2h_fiq_invalid // FIQ EL2h + invalid_vector hyp_stub_el2h_error_invalid // Error EL2h + + ventry elx_sync // Synchronous 64-bit EL1 + invalid_vector hyp_stub_el1_irq_invalid // IRQ 64-bit EL1 + invalid_vector hyp_stub_el1_fiq_invalid // FIQ 64-bit EL1 + invalid_vector hyp_stub_el1_error_invalid // Error 64-bit EL1 + + invalid_vector hyp_stub_32b_el1_sync_invalid // Synchronous 32-bit EL1 + invalid_vector hyp_stub_32b_el1_irq_invalid // IRQ 32-bit EL1 + invalid_vector hyp_stub_32b_el1_fiq_invalid // FIQ 32-bit EL1 + invalid_vector hyp_stub_32b_el1_error_invalid // Error 32-bit EL1 .align 11 SYM_INNER_LABEL(__hyp_stub_vectors_end, SYM_L_LOCAL) SYM_CODE_END(__hyp_stub_vectors) @@ -174,23 +181,6 @@ SYM_CODE_END(enter_vhe) .popsection -.macro invalid_vector label -SYM_CODE_START_LOCAL(\label) - b \label -SYM_CODE_END(\label) -.endm - - invalid_vector el2_sync_invalid - invalid_vector el2_irq_invalid - invalid_vector el2_fiq_invalid - invalid_vector el2_error_invalid - invalid_vector el1_sync_invalid - invalid_vector el1_irq_invalid - invalid_vector el1_fiq_invalid - invalid_vector el1_error_invalid - - .popsection - /* * __hyp_set_vectors: Call this after boot to set the initial hypervisor * vectors as part of hypervisor installation. On an SMP system, this should