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 45164C4338F for ; Thu, 29 Jul 2021 13:29:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2742960184 for ; Thu, 29 Jul 2021 13:29:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237982AbhG2N3k (ORCPT ); Thu, 29 Jul 2021 09:29:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46328 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237733AbhG2N3A (ORCPT ); Thu, 29 Jul 2021 09:29:00 -0400 Received: from mail-qv1-xf4a.google.com (mail-qv1-xf4a.google.com [IPv6:2607:f8b0:4864:20::f4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C50EAC0613CF for ; Thu, 29 Jul 2021 06:28:55 -0700 (PDT) Received: by mail-qv1-xf4a.google.com with SMTP id b6-20020a0cbf460000b02902dbb4e0a8f2so3931685qvj.6 for ; Thu, 29 Jul 2021 06:28:55 -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=RPFJCEtaWTMugcF+NjceDUD4B85Vp1oeldRispcGqoY=; b=bCde7WqPKlxY/xHp5JNTJjJWBNhOJVIwYFfYXuBL6y9hVFcJKQjvu1Mgb3V+PuXsnX mqBCCgRgi/wqWG8KCgA+CMGVirqrgoaOVCFuzncfBsxc8XcDVkSloOQL2ifClKz0If3Y 1wGjcqXn9IBvEFZrjB/A6wvBdmg9otbA4SPJIe1YnoJj2Zoifvf6c0fZu36QDT+x1w2U MwG1JN/XJryBjI4GbZ9IGY2pInQUGfILqs/7RNeTqPYGYAb8DyV5wZCuO40ax1atjGrB w8RvMOQRQqGwRk0P2fFmfVIf+LG2HiF0+IJYdhgVjWw3xx+9XsPAm+vszSyUj/0eUuYl Xufw== 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=RPFJCEtaWTMugcF+NjceDUD4B85Vp1oeldRispcGqoY=; b=Qr/B7AbX6mBxQ9OQ6JNOFGd4Ecf2GminuCDyawkZp9opKZcn33IDrOICc7S1ZK3666 SFMaN3ASTuf5E4t1RIzSET1DFrqb3DuaR8CwLXcnn+fmW5XhK229dYgdgt4O8IBTgXQa RIsWYbHBhXldWLBZVZlruU2KV5trNPV+6CO4f57v4Ra1sh8NERc0THb2+SNCHtD6dFfe R2OYPgf0zIfLgtvz9fo2JZXdt3qCIJKLed4w2nTZXSIumDUAHwzP5SVqQWpCuV5RXm7J 5bI5bkmVlD9s6Syl0xVa3kePrU6AJAORRKYS5AgBYAnq+bJ0xMAMD5vVssmOF1jIwP8F qy2g== X-Gm-Message-State: AOAM531WuDNg5OcSpc9Ql3f4GGGdIfmdAn6CNkteU7yoKFtdsYcBGM7j cRZtz2lteqgRrcdPBXBPglXSuLK7x7ZM X-Google-Smtp-Source: ABdhPJxO1maZxYuMOOkc4lCtsFIycuYzMEuf8no7IwacnRivc5nMk/nvcqWV/4Hs90Z3Rs5fFhvpcPIxnoD0 X-Received: from luke.lon.corp.google.com ([2a00:79e0:d:210:293a:bc89:7514:5218]) (user=qperret job=sendgmr) by 2002:ad4:4a8c:: with SMTP id h12mr5181240qvx.62.1627565334836; Thu, 29 Jul 2021 06:28:54 -0700 (PDT) Date: Thu, 29 Jul 2021 14:28:11 +0100 In-Reply-To: <20210729132818.4091769-1-qperret@google.com> Message-Id: <20210729132818.4091769-15-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 14/21] KVM: arm64: Expose pkvm_hyp_id 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 Allow references to the hypervisor's owner id from outside mem_protect.c. Signed-off-by: Quentin Perret --- arch/arm64/kvm/hyp/include/nvhe/mem_protect.h | 2 ++ arch/arm64/kvm/hyp/nvhe/mem_protect.c | 2 +- 2 files changed, 3 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 47c2a0c51612..cc86598654b9 100644 --- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h +++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h @@ -46,6 +46,8 @@ struct host_kvm { }; extern struct host_kvm host_kvm; +extern const u8 pkvm_hyp_id; + int __pkvm_prot_finalize(void); int __pkvm_mark_hyp(phys_addr_t start, phys_addr_t end); diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c index a7f6134789e0..bb18940c3d12 100644 --- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c +++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c @@ -31,7 +31,7 @@ static struct hyp_pool host_s2_pool; u64 id_aa64mmfr0_el1_sys_val; u64 id_aa64mmfr1_el1_sys_val; -static const u8 pkvm_hyp_id = 1; +const u8 pkvm_hyp_id = 1; static void *host_s2_zalloc_pages_exact(size_t size) { -- 2.32.0.432.gabb21c7263-goog