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 60A97C43333 for ; Mon, 15 Mar 2021 14:53:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DE6DB64ED2 for ; Mon, 15 Mar 2021 14:53:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240175AbhCOOwW (ORCPT ); Mon, 15 Mar 2021 10:52:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52432 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233396AbhCOOgt (ORCPT ); Mon, 15 Mar 2021 10:36:49 -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 5BB9CC0613E8 for ; Mon, 15 Mar 2021 07:36:37 -0700 (PDT) Received: by mail-wm1-x34a.google.com with SMTP id i14so8253990wmq.7 for ; Mon, 15 Mar 2021 07:36:37 -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=mHH8Es+4fAlRYM4Ijk/d6yzRk425uhOb6R/MTFLjwSk=; b=Beq9EHGg6u02WrMXoXiha76AJgeGR2zQYFWI3RMPQJ8SJPiBDvDJ2xvMRIKmzcyAPJ UdkFex3yHx9cFx5yrKJXLWNvnHoy/uBfu1nZrSwaDmXrLFXBxW6+W5ed22sngMc58syG np+9HkZ/7pbZEUpi4AtJa4M/Z2Me18qVCq1BStpWKDzWbRrAaeBTPVklx9FMlcr7Laoy MRBsVtZpcer8oyNqQ3cLKBt61n9YmSymtcE8XlwMe2yekPSUedzYitLSMS7CtpGMrvpB /GpMCQWS/OSbMjUqtSIatqCAg86kF5c+5NCA5VM56v/rAF6/dNyEi2smxz9rtCg3Ot4Y 0pMA== 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=mHH8Es+4fAlRYM4Ijk/d6yzRk425uhOb6R/MTFLjwSk=; b=lzIpqiTqOVYC+gCIO/e0Vy/YFidI/FAxHAeAMmByAoAMxu2gXCgZUcCl1N8g45XdWX iXQ7KDmaFcrx0dlrT/NrM1CcgKChgK2blLT/mFevv2i/10WLZqT0uasAUt66lPpJWl+0 +8tJFnUCgRa6Jhtu6MKPCczD5RcuyahR/sMdAVBsLj8UsLKu//G+mr5dl/+3kqphSdb+ 8eWquZ2FU104be5ArELjks1xXS8EyLOzELk4RZ7JX1kAoIbXq/nVLov8Tm49ZVMByI9G xYEf22PfEgHUcDB9dXmwqdyRSipC3e1055WObvV2cxIvbR97Nv5Z5x3RQw2rqp46hb5A HgzQ== X-Gm-Message-State: AOAM533k4BOsyil1QmSqYYAvmhd2FphjPuKAH/weubJGYIDBUCk+9zn1 vg/KJ+mnopHmtT+n5bFNoOcDEP7AFU2c X-Google-Smtp-Source: ABdhPJy/rlP2MoLwwsRH3zKIividik0vk4TUyDoTo37xUZHzbmBcrMY6wwSXCy8hyEXmtWB85Uy6Tkpm2kEw X-Received: from r2d2-qp.c.googlers.com ([fda3:e722:ac3:10:28:9cb1:c0a8:1652]) (user=qperret job=sendgmr) by 2002:a05:6000:191:: with SMTP id p17mr20999wrx.154.1615818996079; Mon, 15 Mar 2021 07:36:36 -0700 (PDT) Date: Mon, 15 Mar 2021 14:35:27 +0000 In-Reply-To: <20210315143536.214621-1-qperret@google.com> Message-Id: <20210315143536.214621-28-qperret@google.com> Mime-Version: 1.0 References: <20210315143536.214621-1-qperret@google.com> X-Mailer: git-send-email 2.31.0.rc2.261.g7f71774620-goog Subject: [PATCH v5 27/36] KVM: arm64: Sort the hypervisor memblocks From: Quentin Perret To: catalin.marinas@arm.com, will@kernel.org, maz@kernel.org, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com Cc: android-kvm@google.com, seanjc@google.com, mate.toth-pal@arm.com, linux-kernel@vger.kernel.org, robh+dt@kernel.org, linux-arm-kernel@lists.infradead.org, kernel-team@android.com, kvmarm@lists.cs.columbia.edu, tabba@google.com, ardb@kernel.org, mark.rutland@arm.com, dbrazdil@google.com, qperret@google.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We will soon need to check if a Physical Address belongs to a memblock at EL2, so make sure to sort them so this can be done efficiently. Acked-by: Will Deacon Signed-off-by: Quentin Perret --- arch/arm64/kvm/hyp/reserved_mem.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/arch/arm64/kvm/hyp/reserved_mem.c b/arch/arm64/kvm/hyp/reserved_mem.c index fd42705a3c26..83ca23ac259b 100644 --- a/arch/arm64/kvm/hyp/reserved_mem.c +++ b/arch/arm64/kvm/hyp/reserved_mem.c @@ -6,6 +6,7 @@ #include #include +#include #include @@ -18,6 +19,23 @@ static unsigned int *hyp_memblock_nr_ptr = &kvm_nvhe_sym(hyp_memblock_nr); phys_addr_t hyp_mem_base; phys_addr_t hyp_mem_size; +static int cmp_hyp_memblock(const void *p1, const void *p2) +{ + const struct memblock_region *r1 = p1; + const struct memblock_region *r2 = p2; + + return r1->base < r2->base ? -1 : (r1->base > r2->base); +} + +static void __init sort_memblock_regions(void) +{ + sort(hyp_memory, + *hyp_memblock_nr_ptr, + sizeof(struct memblock_region), + cmp_hyp_memblock, + NULL); +} + static int __init register_memblock_regions(void) { struct memblock_region *reg; @@ -29,6 +47,7 @@ static int __init register_memblock_regions(void) hyp_memory[*hyp_memblock_nr_ptr] = *reg; (*hyp_memblock_nr_ptr)++; } + sort_memblock_regions(); return 0; } -- 2.31.0.rc2.261.g7f71774620-goog