From nobody Mon Feb 9 10:50:01 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BB6C7EB64DD for ; Tue, 25 Jul 2023 22:25:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232740AbjGYWZ5 (ORCPT ); Tue, 25 Jul 2023 18:25:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39446 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233224AbjGYWXj (ORCPT ); Tue, 25 Jul 2023 18:23:39 -0400 Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E80041989; Tue, 25 Jul 2023 15:19:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1690323543; x=1721859543; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=XyzpfNDy09U+StlZT/CFQG86sC3VE7VJAC/TT4mf+pA=; b=EDgHvTFJA+x97pyEmw/oxGrcLpk02rch/PT1MGVlVfn08tbZN/qXDc+d WZN4ejK0JEmE7ZUbPGLKW0O/0l2e4TRlBxBZgpKO3VWXOFAvC4F7QpGA+ F/md6MLUSd43c183JaH2LfsgBhbzxbpI7ngOXolQnMkd/I0w8xROkFEbo 8JgyoLKWwIr81Ef+ltbDIy8YcQfsKecK/PQgcp0RhnMMIu5+DMmBSVIDk C7ySFxR7lwOenUnmgppoCJnwuO8KHEkm3jZgpTJ1blkf5NXe1Gb/TwPhk Vga+k8uIg8R9VxDs3AwKCcC/cCi0J2jrqAQeLjVWjAMW4vHpX9rKy00ou g==; X-IronPort-AV: E=McAfee;i="6600,9927,10782"; a="367882758" X-IronPort-AV: E=Sophos;i="6.01,231,1684825200"; d="scan'208";a="367882758" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Jul 2023 15:16:08 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10782"; a="840001949" X-IronPort-AV: E=Sophos;i="6.01,231,1684825200"; d="scan'208";a="840001949" Received: from ls.sc.intel.com (HELO localhost) ([172.25.112.31]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Jul 2023 15:16:08 -0700 From: isaku.yamahata@intel.com To: kvm@vger.kernel.org, linux-kernel@vger.kernel.org Cc: isaku.yamahata@intel.com, isaku.yamahata@gmail.com, Paolo Bonzini , erdemaktas@google.com, Sean Christopherson , Sagi Shahar , David Matlack , Kai Huang , Zhi Wang , chen.bo@intel.com, hang.yuan@intel.com, tina.zhang@intel.com Subject: [PATCH v15 105/115] KVM: TDX: Add a method to ignore dirty logging Date: Tue, 25 Jul 2023 15:14:56 -0700 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Isaku Yamahata Currently TDX KVM doesn't support tracking dirty pages (yet). Implement a method to ignore it. Because the flag for kvm memory slot to enable dirty logging isn't accepted for TDX, warn on the method is called for TDX. Signed-off-by: Isaku Yamahata --- arch/x86/kvm/vmx/main.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/vmx/main.c b/arch/x86/kvm/vmx/main.c index fc443afbdbc7..38a782c28b72 100644 --- a/arch/x86/kvm/vmx/main.c +++ b/arch/x86/kvm/vmx/main.c @@ -827,6 +827,14 @@ static u8 vt_get_mt_mask(struct kvm_vcpu *vcpu, gfn_t = gfn, bool is_mmio) return vmx_get_mt_mask(vcpu, gfn, is_mmio); } =20 +static void vt_update_cpu_dirty_logging(struct kvm_vcpu *vcpu) +{ + if (KVM_BUG_ON(is_td_vcpu(vcpu), vcpu->kvm)) + return; + + vmx_update_cpu_dirty_logging(vcpu); +} + static int vt_mem_enc_ioctl(struct kvm *kvm, void __user *argp) { if (!is_td(kvm)) @@ -969,7 +977,7 @@ struct kvm_x86_ops vt_x86_ops __initdata =3D { .sched_in =3D vt_sched_in, =20 .cpu_dirty_log_size =3D PML_ENTITY_NUM, - .update_cpu_dirty_logging =3D vmx_update_cpu_dirty_logging, + .update_cpu_dirty_logging =3D vt_update_cpu_dirty_logging, =20 .nested_ops =3D &vmx_nested_ops, =20 --=20 2.25.1