From patchwork Fri Jan 24 13:20:22 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaoyao Li X-Patchwork-Id: 13949416 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) (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 E49C335947 for ; Fri, 24 Jan 2025 13:38:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.13 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737725921; cv=none; b=HJdkKe9scX4Pi6QPmPe854Bfc85dwE2oH17WMiTHUfpETVVGo05i+jXfO7ecBMQlaL5OVQ0ODIEMuKK3/zVKSitiJU7PEbt1cVMTZcwEYWk2ezPhw9+MG+sXEzgtJQGRm8S4MWASmmmWIz1KaR9vQFF1BM6dWMY6oivJFLxI7kk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737725921; c=relaxed/simple; bh=yjeFsx3DLSpiqpqVn548Wr6nyNm4xYxJhSEfr1UJ2Ho=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=KEUBF5JsWXgB4xqVsMalgJ/DAnDKdTDoniQe/E+OtG8mzA5OL2Cjg9YS9Qzvl64iKZTSoqks0+Fwjxi2JkuqkXPFaHuLHEa6UMShBJElveoYiS0dSiSKmUSn22c6zHPA22WQlYlwKDZyLo4oXyTz9vPMdqyh2Q+JYJFcfRu4ZtE= 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=Qps1qDj6; arc=none smtp.client-ip=198.175.65.13 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="Qps1qDj6" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1737725920; x=1769261920; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=yjeFsx3DLSpiqpqVn548Wr6nyNm4xYxJhSEfr1UJ2Ho=; b=Qps1qDj6zWFLmSq8u4LUDnqWQ+d8nCrH7Z3H81JcY+IS7XqtwoUSUNKc CVEht3XbYiIpti7PH12v7otV6gok+g9rKawXQqGEBPnT52+xOScKge1MU VUaTV5EumumrFZ6bHub3hY0+XmVdkjAS9setM0k3Qrwb8nH5mnn3fldc2 mCk6Lxx9aWYf7NUJNfN8gydihm1IY2oEZIiv0LyAF0TmcIKBDWwAd0PLo fm0Wi4YttkAjM2HWGktTZ19WTGGe2WwpHUrAJIzRWUNch/Hqf2d6PdlWR xA4aWtaa5+iU1+pmzUes4f9vpNr+IpQYJV5c2rjw+npCLeF4ycGLYr1kT g==; X-CSE-ConnectionGUID: isNyObOOQqeAS8TO9rNb2A== X-CSE-MsgGUID: jq9Y/29YTQmfRL7djyjSUA== X-IronPort-AV: E=McAfee;i="6700,10204,11325"; a="49246435" X-IronPort-AV: E=Sophos;i="6.13,231,1732608000"; d="scan'208";a="49246435" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jan 2025 05:38:40 -0800 X-CSE-ConnectionGUID: s85VyDiiTO6zeiWrug6ntg== X-CSE-MsgGUID: BGIFg/2wSx62RdhW/FXsjQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,224,1728975600"; d="scan'208";a="111804331" Received: from lxy-clx-4s.sh.intel.com ([10.239.48.52]) by fmviesa003.fm.intel.com with ESMTP; 24 Jan 2025 05:38:36 -0800 From: Xiaoyao Li To: Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , =?utf-8?q?Phil?= =?utf-8?q?ippe_Mathieu-Daud=C3=A9?= , Igor Mammedov Cc: Zhao Liu , "Michael S. Tsirkin" , Eric Blake , Markus Armbruster , Peter Maydell , Marcelo Tosatti , Huacai Chen , Rick Edgecombe , Francesco Lavra , xiaoyao.li@intel.com, qemu-devel@nongnu.org, kvm@vger.kernel.org Subject: [PATCH v7 26/52] i386/tdx: Enable user exit on KVM_HC_MAP_GPA_RANGE Date: Fri, 24 Jan 2025 08:20:22 -0500 Message-Id: <20250124132048.3229049-27-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250124132048.3229049-1-xiaoyao.li@intel.com> References: <20250124132048.3229049-1-xiaoyao.li@intel.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 KVM translates TDG.VP.VMCALL to KVM_HC_MAP_GPA_RANGE, and QEMU needs to enable user exit on KVM_HC_MAP_GPA_RANGE in order to handle the memory conversion requested by TD guest. Signed-off-by: Xiaoyao Li --- changes in v6: - new patch; --- target/i386/kvm/tdx.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c index d7f7f8301ca2..1d0cf29c39f9 100644 --- a/target/i386/kvm/tdx.c +++ b/target/i386/kvm/tdx.c @@ -19,6 +19,8 @@ #include "system/system.h" #include "exec/ramblock.h" +#include + #include "hw/i386/e820_memory_layout.h" #include "hw/i386/x86.h" #include "hw/i386/tdvf.h" @@ -374,6 +376,11 @@ static int tdx_kvm_init(ConfidentialGuestSupport *cgs, Error **errp) } } + /* TDX relies on KVM_HC_MAP_GPA_RANGE to handle TDG.VP.VMCALL */ + if (!kvm_enable_hypercall(BIT_ULL(KVM_HC_MAP_GPA_RANGE))) { + return -EOPNOTSUPP; + } + qemu_add_machine_init_done_notifier(&tdx_machine_done_notify); tdx_guest = tdx;