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 64313C4338F for ; Thu, 29 Jul 2021 13:29:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4DDB960EFD for ; Thu, 29 Jul 2021 13:29:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237802AbhG2N3u (ORCPT ); Thu, 29 Jul 2021 09:29:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46350 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237764AbhG2N3B (ORCPT ); Thu, 29 Jul 2021 09:29:01 -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 8058BC061796 for ; Thu, 29 Jul 2021 06:28:58 -0700 (PDT) Received: by mail-wm1-x34a.google.com with SMTP id g187-20020a1c20c40000b02902458d430db6so820371wmg.9 for ; Thu, 29 Jul 2021 06:28:58 -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=OjC24vlLeAeaPgTOLWCqiGMhh2YFKJ1LYBLN6vgVBCE=; b=FUVDUhP/Rgin9C5BP59XMAHUmYRtf8wsXok+/g39vfdccCUCbbIVDOgFIm6+T7feET OomVLcyL10A24g9qFkGVaYhLGSLUP+7LPM2rYyJvJcTC/EXcS3QMcQy9Zjn2OfviE4Vv pqDLpQ9h2b8lvFh1vVNIwNeokffqlvkzEHZ/4KbVuW5P3FYo7Kz/ngnmtxczHYdDl2aY dn8R3JChCBT+YQ6mC/tGYOavge71IRXVQjA3y7zhUwAZ9lCCEAZhdKwSqg682Veyp4Op H6zjmSwxexlMkOT79IpXhHTF8vO1H6IiZx2lHKa9zI3DieJ1lud/goMYV8Lz8Fg4Utho 4szg== 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=OjC24vlLeAeaPgTOLWCqiGMhh2YFKJ1LYBLN6vgVBCE=; b=T2aJSQ3awN3C2Malw2FdUyAnFLkJUjpsAEG+pSkS0N8/IOWL4rDcg8EwNaw9ICRrXN yXu7yBH4yko2NuWd6iQaU4ZVFlBzQzaKXFnaI1WJmX9tMdH/5IlXLX8TPCc0R2gvhlMU dukF4UzsfUhLAYEl/hq+Ca7B1LXNGpBWVfX5zUZCyhAnrvlIgo7F7B75cOFi6KozmbLE 7SJsRj0qwAeT/0VUCxWXzsF1bP91ZB452REtZvbtxT/TykjScU+iUac0VYsYLuEdNZP5 muLY1j2R0IGCrv9ljGyShXwrGmX1ur4AwFy+1PCUds4KSrftKhMH4pl86sYOzbMWNBXk JkpA== X-Gm-Message-State: AOAM533eB4AkkGAoMTczKL23h3kesnp7fNPJ/XnAJdnqwyp+zsRyYUI7 JZurHamLIR3b5hBMdYwpCFPxukUU5Evt X-Google-Smtp-Source: ABdhPJypNTDOJ5B4zDhDCdj5CCbjzdEdEoifMoEeuxe0LOvoyI2vi5S+2I0+5g7DpCtXnyU4MWjdIokkLn73 X-Received: from luke.lon.corp.google.com ([2a00:79e0:d:210:293a:bc89:7514:5218]) (user=qperret job=sendgmr) by 2002:a1c:1b14:: with SMTP id b20mr3965963wmb.170.1627565337101; Thu, 29 Jul 2021 06:28:57 -0700 (PDT) Date: Thu, 29 Jul 2021 14:28:12 +0100 In-Reply-To: <20210729132818.4091769-1-qperret@google.com> Message-Id: <20210729132818.4091769-16-qperret@google.com> Mime-Version: 1.0 References: <20210729132818.4091769-1-qperret@google.com> X-Mailer: git-send-email 2.32.0.432.gabb21c7263-goog Subject: [PATCH v3 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, Quentin Perret 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 cc86598654b9..5968fbbb3514 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(u64 start, u64 end, enum kvm_pgtable_prot prot); int host_stage2_set_owner_locked(u64 start, u64 end, 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 bb18940c3d12..4532f3d55a1a 100644 --- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c +++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c @@ -196,6 +196,13 @@ 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; -- 2.32.0.432.gabb21c7263-goog