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=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL 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 94D97C4338F for ; Mon, 9 Aug 2021 15:26:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7666460F93 for ; Mon, 9 Aug 2021 15:26:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235695AbhHIP0U (ORCPT ); Mon, 9 Aug 2021 11:26:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57814 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235673AbhHIPZq (ORCPT ); Mon, 9 Aug 2021 11:25:46 -0400 Received: from mail-wm1-x34a.google.com (mail-wm1-x34a.google.com [IPv6:2a00:1450:4864:20::34a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 848E5C06179B for ; Mon, 9 Aug 2021 08:25:25 -0700 (PDT) Received: by mail-wm1-x34a.google.com with SMTP id f25-20020a1c6a190000b029024fa863f6b0so6909623wmc.1 for ; Mon, 09 Aug 2021 08:25:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=sKHyMUAJ6pCT8dHKiixvyVxL5Tun5Zpw8bNGyjRM47Q=; b=bWc7R9nxej9wKPmFw7s2yZ0f0yAf+KeBkNmo6SjyRjbG3l1cLWkJ//rfxcBol1QBM7 bPkIAEFKVfFoHoK13PoLaqLoJvb6nZ3IXRULnN60HmZseVOfW7IqrDGLo5xPMyCUrFYa QNp5B+AsF9CfudlTwOj1BQzPPvVR8mxu0Bizz9YrQIoIl8n/VrGwG34KxyaGSU7CCCg1 ws45RKPPDGF2xUU2uTgxTbXSiMCwkNafZGCQQq9m57SYZjOC8Q9Sj6QFY5BE4m4nTDdN hWUNQ6xQnQ4fYbDe7R/P172LCOSA+nh7JJzs1dGHaL8xRuNJIqL3Qo7NbiHOilWilPRF LnzA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=sKHyMUAJ6pCT8dHKiixvyVxL5Tun5Zpw8bNGyjRM47Q=; b=qkJNusEi9zDtcp8vGKGnb/lHWoV9DyJxeZO8iJRfKshc1LsXnf3CoyQNsVVBVFrO80 1EI8Lr+QTGRjcBSSI+L/Bk6WUwdsqH07d1oOZSFGdLx2B1NYeDpNBrXHNo6C5kh6diIr AmHn1A5EbULaFM4JzY59QjEk8wzmNwhhlGFL23aXR9eIR4q90HF+xmEi3BgCh8A/OLf3 znKaUl+I0jTr1MZrhnmR0DQARstVw3o7zhue7dA9yCNk/bf1u8IAHAyUBQlFAu+Ct8fb DdvBVbivSi00VsKZ0j7v9lEK9zj6Fm77IKcO/WBNsVGfMTE1LrlRh4u37hCYWG5rtwf3 JivA== X-Gm-Message-State: AOAM530BGYGIxc/j8btkxxas7Fs+0VxSb6lA8Q7FfGwjlhUh+/Gfx0mQ vIlWZZtCfItprlJdADJxdHkjDKbh9jWM X-Google-Smtp-Source: ABdhPJwsP/UADjMl4ruQIGRGBcaP9Ad7CMQNtdJiMCBKVwCsIFF2Gv3r4iqTKkuIpNzqlGVjFMa4yXaF8yoo X-Received: from luke.lon.corp.google.com ([2a00:79e0:d:210:b0e8:d460:758b:a0ae]) (user=qperret job=sendgmr) by 2002:a05:600c:4f46:: with SMTP id m6mr17616703wmq.68.1628522724126; Mon, 09 Aug 2021 08:25:24 -0700 (PDT) Date: Mon, 9 Aug 2021 16:24:42 +0100 In-Reply-To: <20210809152448.1810400-1-qperret@google.com> Message-Id: <20210809152448.1810400-16-qperret@google.com> Mime-Version: 1.0 References: <20210809152448.1810400-1-qperret@google.com> X-Mailer: git-send-email 2.32.0.605.g8dce9f2422-goog Subject: [PATCH v4 15/21] KVM: arm64: Introduce addr_is_memory() From: Quentin Perret To: maz@kernel.org, james.morse@arm.com, alexandru.elisei@arm.com, suzuki.poulose@arm.com, catalin.marinas@arm.com, will@kernel.org Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org, ardb@kernel.org, qwandor@google.com, tabba@google.com, dbrazdil@google.com, kernel-team@android.com, qperret@google.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Introduce a helper usable in nVHE protected mode to check whether a physical address is in a RAM region or not. Signed-off-by: Quentin Perret --- arch/arm64/kvm/hyp/include/nvhe/mem_protect.h | 1 + arch/arm64/kvm/hyp/nvhe/mem_protect.c | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h index 23316a021880..49db0ec5a606 100644 --- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h +++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h @@ -51,6 +51,7 @@ extern const u8 pkvm_hyp_id; int __pkvm_prot_finalize(void); int __pkvm_mark_hyp(phys_addr_t start, phys_addr_t end); +bool addr_is_memory(phys_addr_t phys); int host_stage2_idmap_locked(phys_addr_t addr, u64 size, enum kvm_pgtable_prot prot); int host_stage2_set_owner_locked(phys_addr_t addr, u64 size, u8 owner_id); int kvm_host_prepare_stage2(void *pgt_pool_base); diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c index ee255171945c..cb023d31666e 100644 --- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c +++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c @@ -197,6 +197,13 @@ static bool find_mem_range(phys_addr_t addr, struct kvm_mem_range *range) return false; } +bool addr_is_memory(phys_addr_t phys) +{ + struct kvm_mem_range range; + + return find_mem_range(phys, &range); +} + static bool range_is_memory(u64 start, u64 end) { struct kvm_mem_range r1, r2; -- 2.32.0.605.g8dce9f2422-goog