From patchwork Tue Nov 5 06:23:36 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaoyao Li X-Patchwork-Id: 13862436 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.18]) (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 4874F1FCF71 for ; Tue, 5 Nov 2024 06:38:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.18 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730788704; cv=none; b=ufm95Thv/7YxhyM5p1MRGvFEUyc3PjCNLO8x91o81eacJZ+u4gcTXh3YVGkThFPdF+hMpf23h4yU3nPTYHUcLn1VnEiKosP5tBDvS6qunVYaNAFkGyRCXgLyWzV/N3VOvIKBOsmv0x2gPEnPjjXd6A1yh6Gn/TJzctGF1zYr1gQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730788704; c=relaxed/simple; bh=yTZNX+NQ5Q3yptqAX7/efQmRoNrRURBtZaK/2Teq53U=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=HnFDuxrmLf9EDgbV57t+SMuJTzpkDXViHYkXfDuCWnrha0lHUATebsE+qxmf8CybtvHnUh9aaIXJhdoHsQ5CjKbBuwI/WGTKlWZr3nbtVkvicPXKML0lp/0UYvh/xWFrZmTNifVeuoUKw/zoPqp74JPSl8pKweYssKSE0fEsl6M= 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=eoplg+BF; arc=none smtp.client-ip=198.175.65.18 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="eoplg+BF" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1730788703; x=1762324703; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=yTZNX+NQ5Q3yptqAX7/efQmRoNrRURBtZaK/2Teq53U=; b=eoplg+BFCHEirWZ7zobYMtfhqY+p9DygR9zjl6afpUBvhEw/mdKP3sBs s461kOqSIBXJl2v7JUrtUMxBvN4FFD3npW3xEJHKfsVc2X2feFkWpfj1Z KgSFuipoZO9TvtRwHg40AhHBtKASpYEwxLn3IiqHv7iBx3xqL3LUyXCzQ P0rOLCtdObc+niQCgAqlvWw8eajdSYjIht679WsXFnvzytzew5S8uP5zP UYZiB2pXUPW9+5Ovy7Z9Qr8kVmDWXQZ2OlzC5POctvmAIZpJwyP4lIm9g OoT2+iFUsJoGl0gEDTmrD6e4OUXU9Sh0GoUgOpGwzg/mwv0kynscBgJx1 Q==; X-CSE-ConnectionGUID: bn/kwFCgQ324J3AqbK9RDA== X-CSE-MsgGUID: TQ2SibEPQ3SbyhjcquxQeQ== X-IronPort-AV: E=McAfee;i="6700,10204,11222"; a="30689615" X-IronPort-AV: E=Sophos;i="6.11,199,1725346800"; d="scan'208";a="30689615" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Nov 2024 22:38:23 -0800 X-CSE-ConnectionGUID: BJdYU1grQeKHRWNJj1QRwA== X-CSE-MsgGUID: M0YwmNanRkGKH2IyrQ+pEw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,259,1725346800"; d="scan'208";a="83989093" Received: from lxy-clx-4s.sh.intel.com ([10.239.48.52]) by fmviesa009.fm.intel.com with ESMTP; 04 Nov 2024 22:38:19 -0800 From: Xiaoyao Li To: Paolo Bonzini , Riku Voipio , Richard Henderson , Zhao Liu , "Michael S. Tsirkin" , Marcel Apfelbaum , Igor Mammedov , Ani Sinha Cc: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Yanan Wang , Cornelia Huck , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eric Blake , Markus Armbruster , Marcelo Tosatti , rick.p.edgecombe@intel.com, kvm@vger.kernel.org, qemu-devel@nongnu.org, xiaoyao.li@intel.com Subject: [PATCH v6 28/60] i386/tdx: Enable user exit on KVM_HC_MAP_GPA_RANGE Date: Tue, 5 Nov 2024 01:23:36 -0500 Message-Id: <20241105062408.3533704-29-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241105062408.3533704-1-xiaoyao.li@intel.com> References: <20241105062408.3533704-1-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 33d7ed039051..b34707e93f4d 100644 --- a/target/i386/kvm/tdx.c +++ b/target/i386/kvm/tdx.c @@ -20,6 +20,8 @@ #include "sysemu/sysemu.h" #include "exec/ramblock.h" +#include + #include "hw/i386/e820_memory_layout.h" #include "hw/i386/x86.h" #include "hw/i386/tdvf.h" @@ -362,6 +364,11 @@ 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;