Message ID | 20230818095041.1973309-27-xiaoyao.li@intel.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <kvm-owner@vger.kernel.org> X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 945FEC71145 for <kvm@archiver.kernel.org>; Fri, 18 Aug 2023 09:59:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1359516AbjHRJ7G (ORCPT <rfc822;kvm@archiver.kernel.org>); Fri, 18 Aug 2023 05:59:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40048 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1359523AbjHRJ6j (ORCPT <rfc822;kvm@vger.kernel.org>); Fri, 18 Aug 2023 05:58:39 -0400 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.120]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 185764214 for <kvm@vger.kernel.org>; Fri, 18 Aug 2023 02:58:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1692352699; x=1723888699; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=2N2aM9wH/rXuk9SRUqbVx5Kuno6nIQTpUhHJzi/wXXE=; b=i3MOCcKObymqF0NWGiMbViKOsZKAkQfPmDLn3eOyVNYkgcbrNu87Mocb OSfK0dFrs8rmRFf3Z3rJh+K57HOjdu8aPVZfSki/V5wlzf+y2wxj65Uek SQVkCpF/Pw4Dk5fkPR4nufNhmmGEISLNcrnkqgquPqx32R9L1AGxSxRGI M70tCKKNoKEFDKhg8jLLLRoVQdP7c1pswXFRetNyO2epuxSDSMw2YuxDh yoNNix3RnGDpBDzARLF1Uow/cl5Kn8bZoRF2lZIIkqopiVaVoRxwcSbgR uCxUqUMWU2PGQWdd3FhXVzsqm9JH70x37rSCybv8ryu9YVR4bTvrQgQik Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10805"; a="371966144" X-IronPort-AV: E=Sophos;i="6.01,182,1684825200"; d="scan'208";a="371966144" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Aug 2023 02:56:42 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10805"; a="849235224" X-IronPort-AV: E=Sophos;i="6.01,182,1684825200"; d="scan'208";a="849235224" Received: from lxy-clx-4s.sh.intel.com ([10.239.48.46]) by fmsmga002.fm.intel.com with ESMTP; 18 Aug 2023 02:56:37 -0700 From: Xiaoyao Li <xiaoyao.li@intel.com> To: Paolo Bonzini <pbonzini@redhat.com>, Richard Henderson <richard.henderson@linaro.org>, "Michael S. Tsirkin" <mst@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Igor Mammedov <imammedo@redhat.com>, Ani Sinha <anisinha@redhat.com>, Peter Xu <peterx@redhat.com>, David Hildenbrand <david@redhat.com>, =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= <philmd@linaro.org>, =?utf-8?q?Dani?= =?utf-8?q?el_P=2E_Berrang=C3=A9?= <berrange@redhat.com>, Cornelia Huck <cohuck@redhat.com>, Eric Blake <eblake@redhat.com>, Markus Armbruster <armbru@redhat.com>, Marcelo Tosatti <mtosatti@redhat.com>, Gerd Hoffmann <kraxel@redhat.com> Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org, Eduardo Habkost <eduardo@habkost.net>, Laszlo Ersek <lersek@redhat.com>, xiaoyao.li@intel.com, Isaku Yamahata <isaku.yamahata@gmail.com>, erdemaktas@google.com, Chenyi Qiang <chenyi.qiang@intel.com> Subject: [PATCH v2 26/58] kvm/tdx: Ignore memory conversion to shared of unassigned region Date: Fri, 18 Aug 2023 05:50:09 -0400 Message-Id: <20230818095041.1973309-27-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230818095041.1973309-1-xiaoyao.li@intel.com> References: <20230818095041.1973309-1-xiaoyao.li@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: <kvm.vger.kernel.org> X-Mailing-List: kvm@vger.kernel.org |
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TDX QEMU support
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diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index 9d0aa8c97feb..8d53c89e9dbf 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -3070,6 +3070,18 @@ static int kvm_convert_memory(hwaddr start, hwaddr size, bool to_private) trace_kvm_convert_memory(start, size, to_private ? "shared_to_private" : "private_to_shared"); section = memory_region_find(get_system_memory(), start, size); if (!section.mr) { + /* + * Ignore converting non-assigned region to shared. + * + * TDX requires vMMIO region to be shared to inject #VE to guest. + * OVMF issues conservatively MapGPA(shared) on 32bit PCI MMIO region, + * and vIO-APIC 0xFEC00000 4K page. + * OVMF assigns 32bit PCI MMIO region to + * [top of low memory: typically 2GB=0xC000000, 0xFC00000) + */ + if (!to_private) { + ret = 0; + } return ret; }