From patchwork Mon Feb 26 08:27:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Isaku Yamahata X-Patchwork-Id: 13571553 Received: from mgamail.intel.com (unknown [192.198.163.8]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C152B12CDB6; Mon, 26 Feb 2024 08:29:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.8 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708936156; cv=none; b=tGxRkKGUZSucO1Ky80xu3qxjmjgL53ZIx+RrDd2Igafzu4BiBnksw6pbDJFHrfilzjNMMed0OB5GFLarPcvJmOHv/f+q2r0N9tVuG7nLmvtborJPhyZa2Na8MV6kl+Da2ALpfDtUIzx6/S5kVmhCwE0EgX/AOXzaiaXfIInIwD0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708936156; c=relaxed/simple; bh=TGyv4NcpisLqfQGp5DS6OP4mOwYZXVYUosr40c4DaB8=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=pGL7mOF3taQEW5odsgYbkwrvc4toHZezfVEbmlL12UJhHXUjPOIoAbFU2x3xKG3qVvZxdVgdyQ6rN9vs3K6o5kO4XHEGZW2bfIvvqA30t8N+QrhsX6dPboBea+L8vTEQbWCy4ubr2zLwtS73yX46YbRY0OXz6XgsrBl/0gflBaA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=YXl9J4E0; arc=none smtp.client-ip=192.198.163.8 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="YXl9J4E0" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1708936155; x=1740472155; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=TGyv4NcpisLqfQGp5DS6OP4mOwYZXVYUosr40c4DaB8=; b=YXl9J4E0ymHwNWqQG5EXaIl5CRCVWLYXWp6/32LgwB2ktOnl8RJt1lEv xxwNs/y2GqMj2NAd/cnU760vDji553ees3Z3aJKFlAoctBg6vYQNiN9ED +hNUCjuByAz5sHT2OmHsaZGY4CO3E+do/oqjJHW3tNh3MiktuU14s9r9L C/D0vZ5cnIuvaNNg/EvbP/B7uklsYDMIX63WYJrHLgVHsrBMDmt6Yh05p +Lcq8ts1TIJrqJVEoF/dnuLudAV0BGcCHTMw7EWeoa2qvFN4mJ9CBp/v+ 3LF3j6HqZhQGPvkXE+0qX6CVytOojSL0WjCj8/XvwUSSjvgeQE54qJxUL A==; X-IronPort-AV: E=McAfee;i="6600,9927,10995"; a="20751387" X-IronPort-AV: E=Sophos;i="6.06,185,1705392000"; d="scan'208";a="20751387" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Feb 2024 00:29:09 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.06,185,1705392000"; d="scan'208";a="6735120" Received: from ls.sc.intel.com (HELO localhost) ([172.25.112.31]) by fmviesa008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Feb 2024 00:29:09 -0800 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 , Kai Huang , chen.bo@intel.com, hang.yuan@intel.com, tina.zhang@intel.com Subject: [PATCH v19 120/130] KVM: TDX: Add a method to ignore dirty logging Date: Mon, 26 Feb 2024 00:27:02 -0800 Message-Id: <1491dd247829bf1a29df1904aeed5ed6b464d29c.1708933498.git.isaku.yamahata@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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 9aaa9bd7abf3..991bfdecaed2 100644 --- a/arch/x86/kvm/vmx/main.c +++ b/arch/x86/kvm/vmx/main.c @@ -834,6 +834,14 @@ 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); } +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)) @@ -1008,7 +1016,7 @@ struct kvm_x86_ops vt_x86_ops __initdata = { .sched_in = vt_sched_in, .cpu_dirty_log_size = PML_ENTITY_NUM, - .update_cpu_dirty_logging = vmx_update_cpu_dirty_logging, + .update_cpu_dirty_logging = vt_update_cpu_dirty_logging, .nested_ops = &vmx_nested_ops,