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, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 4A141C43461 for ; Fri, 16 Apr 2021 15:42:11 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id E505A61222 for ; Fri, 16 Apr 2021 15:42:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E505A61222 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 111A490000B; Fri, 16 Apr 2021 11:42:01 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 0C1D3900007; Fri, 16 Apr 2021 11:42:00 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id DE45B90000B; Fri, 16 Apr 2021 11:42:00 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0224.hostedemail.com [216.40.44.224]) by kanga.kvack.org (Postfix) with ESMTP id B5E6B900007 for ; Fri, 16 Apr 2021 11:42:00 -0400 (EDT) Received: from smtpin39.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 6968A181E25A6 for ; Fri, 16 Apr 2021 15:42:00 +0000 (UTC) X-FDA: 78038646000.39.BEDEE87 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by imf29.hostedemail.com (Postfix) with ESMTP id A1A14DE for ; Fri, 16 Apr 2021 15:41:57 +0000 (UTC) IronPort-SDR: v9PEP7K0YVwVWmB0Vt8UBG3MmfPj2/CeY3vKxa3h4cKaDz3jG7wClsRc8BRbd+Lf1LXC/y96DL Th9E8DghKMEg== X-IronPort-AV: E=McAfee;i="6200,9189,9956"; a="280375309" X-IronPort-AV: E=Sophos;i="5.82,226,1613462400"; d="scan'208";a="280375309" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Apr 2021 08:41:44 -0700 IronPort-SDR: 3HYELYXhQ0Mx8RIPOamGTgbBRpB0AncsovXkZNC/8m2JSdrcRS+o6IlhQliG1Z6k8LBgLQ4zTa Vj7+eJtHfebw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.82,226,1613462400"; d="scan'208";a="453378493" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga002.fm.intel.com with ESMTP; 16 Apr 2021 08:41:37 -0700 Received: by black.fi.intel.com (Postfix, from userid 1000) id F3CE424D; Fri, 16 Apr 2021 18:41:49 +0300 (EEST) From: "Kirill A. Shutemov" To: Dave Hansen , Andy Lutomirski , Peter Zijlstra , Sean Christopherson , Jim Mattson Cc: David Rientjes , "Edgecombe, Rick P" , "Kleen, Andi" , "Yamahata, Isaku" , Erdem Aktas , Steve Rutherford , Peter Gonda , David Hildenbrand , x86@kernel.org, kvm@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" Subject: [RFCv2 05/13] x86/kvmclock: Share hvclock memory with the host Date: Fri, 16 Apr 2021 18:40:58 +0300 Message-Id: <20210416154106.23721-6-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210416154106.23721-1-kirill.shutemov@linux.intel.com> References: <20210416154106.23721-1-kirill.shutemov@linux.intel.com> MIME-Version: 1.0 X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: A1A14DE X-Stat-Signature: eerfyomjhg4w4a95hwyeecu88r7k5auy Received-SPF: none (linux.intel.com>: No applicable sender policy available) receiver=imf29; identity=mailfrom; envelope-from=""; helo=mga05.intel.com; client-ip=192.55.52.43 X-HE-DKIM-Result: none/none X-HE-Tag: 1618587717-973328 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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 =3D set_memory_decrypted((unsigned long) hvclock_mem, 1UL << order); if (r) { --=20 2.26.3