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 88424C432BE for ; Mon, 26 Jul 2021 09:29:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 743F060243 for ; Mon, 26 Jul 2021 09:29:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233207AbhGZItX (ORCPT ); Mon, 26 Jul 2021 04:49:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45116 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233267AbhGZItI (ORCPT ); Mon, 26 Jul 2021 04:49:08 -0400 Received: from mail-wr1-x449.google.com (mail-wr1-x449.google.com [IPv6:2a00:1450:4864:20::449]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 43C03C061757 for ; Mon, 26 Jul 2021 02:29:37 -0700 (PDT) Received: by mail-wr1-x449.google.com with SMTP id z10-20020adfdf8a0000b02901536d17cd63so1769766wrl.21 for ; Mon, 26 Jul 2021 02:29:37 -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=fyCHOW6maJF9L7guSoQxIXFDKYajZ5tEfL0M1nzcu3g=; b=b6cEmvJ0vdEy2FGe8oxQq0HlmnKC08AOEIcGg2mj6fy+SSGskiuESRrYptCgJBbUZu mt0BDG+nEREOBOG2gON7kzVvLlgj83N/3hY4W0c6StPuMfpFjuKVeuGnNBubwob1lg/y noakRpnUfRpGOAidTPg/rki9g0KqzEwYypxs4M7HTnvPXf7iFxu/B6GlMaKalYBVBH14 YkQii/9BBIPj6M2rqhx9TIywxni7ift1Cnpcz6Om6njwYOV6G8R2RL+mltGn89rqQd3x lPyubLT/kp4B80c1Rt5WC3DkG7lsQlG7ga2RipuW01KExo0V3PSpKTM1DAMcXKZlw0ft 7ibg== 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=fyCHOW6maJF9L7guSoQxIXFDKYajZ5tEfL0M1nzcu3g=; b=QPWFVpJw6T0i/qJ8Jn+U6VdVivKFsA7cF+xeUo7bnXhWR56UKhqO6aQ1lVm/wh2EI2 1d4YbjCTcIeqfUOxH7GmbDC3iw4m0fl2kh0I7scKX/WQeCWgcdFFCeEGA/3d2xiuJh1Q femGB1xB14tq1YT7KoxG2sjWYONn2A36JKniCI0pKqwz8HTSXZOd6ZCOYOimQ57XRjhj VNdFr3sptAV52/Jr/ulMEnVQQnkBJNbBssAQxkJ7jc3ZQEOmRzZ5EJi21GEhe+pCVtid 7qWvSUDEWSrHg3XIN0NwIuAw9WQIj65A2oEBeHifZ73HKqVSGpcxmGumeHepiWPUP3aE NVOg== X-Gm-Message-State: AOAM5306Nv/pzmCPuS1B8Tu5rNhGZgAh+dkJEf4O45w25wLpIVr9ShyL zhdgVFA0mvTd/zAeqjvin0tPmYeFNQJH X-Google-Smtp-Source: ABdhPJwpwF4hCeEcD8WP2F52FmGpoCMVmSoE2R/VRCPmMc5vvMGS4yzbAZ1WyJM7j6+dONr435cj4ZE0ccVT X-Received: from luke.lon.corp.google.com ([2a00:79e0:d:210:23a0:2f14:433:e6cb]) (user=qperret job=sendgmr) by 2002:a7b:cb4d:: with SMTP id v13mr14985934wmj.68.1627291775721; Mon, 26 Jul 2021 02:29:35 -0700 (PDT) Date: Mon, 26 Jul 2021 10:29:00 +0100 In-Reply-To: <20210726092905.2198501-1-qperret@google.com> Message-Id: <20210726092905.2198501-12-qperret@google.com> Mime-Version: 1.0 References: <20210726092905.2198501-1-qperret@google.com> X-Mailer: git-send-email 2.32.0.432.gabb21c7263-goog Subject: [PATCH v2 11/16] KVM: arm64: Introduce and export host_stage2_idmap_locked() 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 We will need to manipulate the host stage-2 page-table from outside mem_protect.c soon. Introduce a function wrapping the host_stage2_try() call and make it usable to users of mem_protect.h. 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, 7 insertions(+), 1 deletion(-) diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h index facbd9a7ab99..8e5725d032b2 100644 --- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h +++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h @@ -50,6 +50,7 @@ extern struct host_kvm host_kvm; int __pkvm_prot_finalize(void); int __pkvm_mark_hyp(phys_addr_t start, phys_addr_t end); +int host_stage2_idmap_locked(u64 start, u64 end, enum kvm_pgtable_prot prot); int kvm_host_prepare_stage2(void *pgt_pool_base); void handle_host_mem_abort(struct kvm_cpu_context *host_ctxt); diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c index 2d41d4fa8901..223c541a7051 100644 --- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c +++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c @@ -266,6 +266,11 @@ static int host_stage2_find_range(u64 addr, struct kvm_mem_range *range) return 0; } +int host_stage2_idmap_locked(u64 start, u64 end, enum kvm_pgtable_prot prot) +{ + return host_stage2_try(__host_stage2_idmap, start, end, prot); +} + static bool host_stage2_force_pte_cb(u64 addr, u64 end, enum kvm_pgtable_prot prot) { /* @@ -303,7 +308,7 @@ static int host_stage2_idmap(u64 addr) if (ret) goto unlock; - ret = host_stage2_try(__host_stage2_idmap, range.start, range.end, prot); + ret = host_stage2_idmap_locked(range.start, range.end, prot); unlock: hyp_spin_unlock(&host_kvm.lock); -- 2.32.0.432.gabb21c7263-goog