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=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 2D345C43461 for ; Fri, 2 Apr 2021 15:27:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 056FA6113E for ; Fri, 2 Apr 2021 15:27:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236395AbhDBP1R (ORCPT ); Fri, 2 Apr 2021 11:27:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58526 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234723AbhDBP1D (ORCPT ); Fri, 2 Apr 2021 11:27:03 -0400 Received: from mail-lf1-x12f.google.com (mail-lf1-x12f.google.com [IPv6:2a00:1450:4864:20::12f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C50B0C0617AA for ; Fri, 2 Apr 2021 08:27:01 -0700 (PDT) Received: by mail-lf1-x12f.google.com with SMTP id q29so8028853lfb.4 for ; Fri, 02 Apr 2021 08:27:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=shutemov-name.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=V63UJPQR8b6EdyZmr/3VnRg5RBlmH2w6E7wlm6bMVko=; b=AuePuZL2bSIcibmAXbe3zRQxKxvR7sR9qfnsCDZXQjjYH2y03TELhv0GebMP8hJhJV NdD0lX0LVuiK5iFVcEkhiqhX3Tu/wwne8RjfT1xLXVafjf5Rli7LniDVUZEM0SYLkp7l XkFieKDi3UOd1cBwCHVl2eVma9pWmLYpNi2k1nfenF5yzKF+9OkpbkIoH2vepOv+TQoC OPuUiz5gYqYLuzvtOt5iHfoCbSyCqMShaXS/gtgBCABTb5ZPVjn2AUjwrXw0ouX/nvPj Uvu1WZiHdAdsEnA8S7jgQom9BqntEETfUpqIfIuN9t+tBOMNC/GMvRVHrWHEFxyShl9N VQ6A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=V63UJPQR8b6EdyZmr/3VnRg5RBlmH2w6E7wlm6bMVko=; b=Wc2GNr+ozKmC7ekiNb1TTwAWpsEnD//QrnNQyu65VRglcCwrnn3aDqmpBixnlx/Oua W9zew76F75Zc5XSmc2z7D5PnvHzktPi8skrlCDMEU1JB3rj1bome9oPblMN7hZ8wZEXT SWdJ0UH7m1KeKXKYF0dZnTCg2PT+1c2pwYviRE6GMIMzc3gMqIAxzDgSox1ADyvA5v7+ Ax82lzcRnCNA3qGrc+xUnTBGGG1Gj5ZUGUFNczU5PvUDSRCWW9rRBMrVakKFU++C0Prb ZLF6tt2bnjp/vWuJ2kLTK0hQ/YJalMPZtkXgnqkCxU+GBohU1VcuQY+JKIwfMNv9kq0g +Egw== X-Gm-Message-State: AOAM530z7MPrgOBfGKzdRdFIBzWW5kCd/QPfGdwFmgJmIaUOaJcwh6O7 PdXpdXgwDcjd+G9bcXCHBTek6A== X-Google-Smtp-Source: ABdhPJz3LE/aOX7pwxBVzyg+rwnlssxsmbNBVvY5MbgA2FQBPHQiqlCe2VwBUkDjdtmr83SspcKJDA== X-Received: by 2002:ac2:4c0b:: with SMTP id t11mr9139607lfq.241.1617377220305; Fri, 02 Apr 2021 08:27:00 -0700 (PDT) Received: from box.localdomain ([86.57.175.117]) by smtp.gmail.com with ESMTPSA id h62sm885645lfd.234.2021.04.02.08.26.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Apr 2021 08:26:59 -0700 (PDT) From: "Kirill A. Shutemov" X-Google-Original-From: "Kirill A. Shutemov" Received: by box.localdomain (Postfix, from userid 1000) id 465C4102677; Fri, 2 Apr 2021 18:26:59 +0300 (+03) To: Dave Hansen , Andy Lutomirski , Peter Zijlstra , Sean Christopherson , Jim Mattson Cc: David Rientjes , "Edgecombe, Rick P" , "Kleen, Andi" , "Yamahata, Isaku" , x86@kernel.org, kvm@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" Subject: [RFCv1 5/7] x86/kvmclock: Share hvclock memory with the host Date: Fri, 2 Apr 2021 18:26:43 +0300 Message-Id: <20210402152645.26680-6-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 2.26.3 In-Reply-To: <20210402152645.26680-1-kirill.shutemov@linux.intel.com> References: <20210402152645.26680-1-kirill.shutemov@linux.intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org hvclock is shared between the guest and the hypervisor. It has to be accessible by host. Signed-off-by: Kirill A. Shutemov --- arch/x86/kernel/kvmclock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c index aa593743acf6..3d004b278dba 100644 --- a/arch/x86/kernel/kvmclock.c +++ b/arch/x86/kernel/kvmclock.c @@ -252,7 +252,7 @@ static void __init kvmclock_init_mem(void) * hvclock is shared between the guest and the hypervisor, must * be mapped decrypted. */ - if (sev_active()) { + if (sev_active() || kvm_mem_protected()) { r = set_memory_decrypted((unsigned long) hvclock_mem, 1UL << order); if (r) { -- 2.26.3