From patchwork Thu Sep 14 03:51:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaoyao Li X-Patchwork-Id: 13384407 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9F4ACEE021E for ; Thu, 14 Sep 2023 03:54:09 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qgdP0-0007FM-Rv; Wed, 13 Sep 2023 23:52:26 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qgdOz-0007Dl-Bo for qemu-devel@nongnu.org; Wed, 13 Sep 2023 23:52:25 -0400 Received: from mgamail.intel.com ([134.134.136.24]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qgdOx-0000r7-Kp for qemu-devel@nongnu.org; Wed, 13 Sep 2023 23:52:25 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1694663543; x=1726199543; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=eKloPCcRi+HIRDzS+h7jCyuEt7bYm6PhIvGdqysJsx8=; b=CODPZ7y83/toBuJ3Pa9/G2/PjbH4unXpjTi+5msW0fxteLbWFkhxEoKk hDCb0GfUllPgV20Vrlk6LsJNeKA3vndNP/2o+PszsQfRUk6mQqNSKuF2I 5qszPDMaB9WzQdiZRg6ba17skSUTStQBwVKNVxMEk2iD6RDdEo7zV+naY yPmVIB2e7cztFgZf+pxkCzL4nfqQomqxT3Rr30mjZQYw+IM+ngYs7JS6r p3XazqPwwBGeqVZX1/Bpe8hPNP8ImmZXT5HC4QTffd58cxY/91l1twc3J F4FuHvE3mPtbEQZDXZALIjm68t9oDwk/Y9X3Xk1mQzHR1zQf3Av96g4Kw w==; X-IronPort-AV: E=McAfee;i="6600,9927,10832"; a="381528480" X-IronPort-AV: E=Sophos;i="6.02,144,1688454000"; d="scan'208";a="381528480" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Sep 2023 20:52:22 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10832"; a="814500625" X-IronPort-AV: E=Sophos;i="6.02,144,1688454000"; d="scan'208";a="814500625" Received: from lxy-clx-4s.sh.intel.com ([10.239.48.52]) by fmsmga004.fm.intel.com with ESMTP; 13 Sep 2023 20:52:18 -0700 From: Xiaoyao Li To: Paolo Bonzini , David Hildenbrand , Igor Mammedov , "Michael S. Tsirkin" , Marcel Apfelbaum , Richard Henderson , Peter Xu , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Cornelia Huck , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eric Blake , Markus Armbruster , Marcelo Tosatti Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org, xiaoyao.li@intel.com, Michael Roth , isaku.yamahata@gmail.com, Sean Christopherson , Claudio Fontana Subject: [RFC PATCH v2 13/21] i386/kvm: Set memory to default private for KVM_X86_SW_PROTECTED_VM Date: Wed, 13 Sep 2023 23:51:09 -0400 Message-Id: <20230914035117.3285885-14-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230914035117.3285885-1-xiaoyao.li@intel.com> References: <20230914035117.3285885-1-xiaoyao.li@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=134.134.136.24; envelope-from=xiaoyao.li@intel.com; helo=mgamail.intel.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.001, HK_RANDOM_FROM=0.001, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Register a memory listener for KVM_X86_SW_PROVTED_VM. It set RAM to private by default. Signed-off-by: Xiaoyao Li --- include/exec/memory.h | 1 + target/i386/kvm/sw-protected-vm.c | 18 ++++++++++++++++++ 2 files changed, 19 insertions(+) diff --git a/include/exec/memory.h b/include/exec/memory.h index 2c738b5dc420..a2602b783a38 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -820,6 +820,7 @@ struct IOMMUMemoryRegion { #define MEMORY_LISTENER_PRIORITY_MIN 0 #define MEMORY_LISTENER_PRIORITY_ACCEL 10 #define MEMORY_LISTENER_PRIORITY_DEV_BACKEND 10 +#define MEMORY_LISTENER_PRIORITY_ACCEL_HIGH 20 /** * struct MemoryListener: callbacks structure for updates to the physical memory map diff --git a/target/i386/kvm/sw-protected-vm.c b/target/i386/kvm/sw-protected-vm.c index 3cfcc89202a6..f47ac383e1dd 100644 --- a/target/i386/kvm/sw-protected-vm.c +++ b/target/i386/kvm/sw-protected-vm.c @@ -12,14 +12,32 @@ #include "qemu/osdep.h" #include "qapi/error.h" #include "qom/object_interfaces.h" +#include "exec/address-spaces.h" +#include "sysemu/kvm.h" #include "hw/i386/x86.h" #include "sw-protected-vm.h" +static void kvm_x86_sw_protected_vm_region_add(MemoryListener *listenr, + MemoryRegionSection *section) +{ + memory_region_set_default_private(section->mr); +} + +static MemoryListener kvm_x86_sw_protected_vm_memory_listener = { + .name = "kvm_x86_sw_protected_vm_memory_listener", + .region_add = kvm_x86_sw_protected_vm_region_add, + /* Higher than KVM memory listener = 10. */ + .priority = MEMORY_LISTENER_PRIORITY_ACCEL_HIGH, +}; + int sw_protected_vm_kvm_init(MachineState *ms, Error **errp) { SwProtectedVm *spvm = SW_PROTECTED_VM(OBJECT(ms->cgs)); + memory_listener_register(&kvm_x86_sw_protected_vm_memory_listener, + &address_space_memory); + spvm->parent_obj.ready = true; return 0; }