From patchwork Mon Sep 30 09:26:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Duan, Zhenzhong" X-Patchwork-Id: 13815748 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 A0F27CF6497 for ; Mon, 30 Sep 2024 09:30:43 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1svCj1-00079g-K2; Mon, 30 Sep 2024 05:29:51 -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 1svCiz-000734-Oh for qemu-devel@nongnu.org; Mon, 30 Sep 2024 05:29:49 -0400 Received: from mgamail.intel.com ([198.175.65.21]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1svCiy-0006o0-5G for qemu-devel@nongnu.org; Mon, 30 Sep 2024 05:29:49 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1727688588; x=1759224588; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=88uz1UM1GGahDK2LNy5CbGB+pZ76LOKNLEqrvFGThgU=; b=UJ/isuFJVq4/i6JRYQwLHFPLL46GWdfj1YzWsiqEsByE0JklSzlJh+M4 PiQJipIH+N1pxljoflvmR5CzLjzdEDzZdf8mGZ1dWAgvUN8v2DgZnclQQ YmZhefm7hrTeuHlk1IcqO2UGeoFtb0hnaR30hiFG0S1WsHUS4ie2KAZ/O so5mqpAJPFlHyUvsvIC7+OucuuJmy9oljf/IJgwag6hU2DPBtAYTh2wRL fGs9U08FWmlpt2SSFRppNykqT3C89+xlTMdcG4jJQS0wPmxHoYHXPx+qP q+YRjssLjTdqEi9qs36exo+gH3SkJirXPP1esVIOPZNBUFDE3GKFmdbCv A==; X-CSE-ConnectionGUID: SDzzop0qQueW943Rv3O0BA== X-CSE-MsgGUID: FFeMxSqiTcKZnIXzhVvg6Q== X-IronPort-AV: E=McAfee;i="6700,10204,11210"; a="26721634" X-IronPort-AV: E=Sophos;i="6.11,165,1725346800"; d="scan'208";a="26721634" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Sep 2024 02:29:46 -0700 X-CSE-ConnectionGUID: PD6F3U8lTlWImd/4XU/AeA== X-CSE-MsgGUID: KV2eD3JFRWeXmJNr8DGRog== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,165,1725346800"; d="scan'208";a="77749396" Received: from spr-s2600bt.bj.intel.com ([10.240.192.127]) by fmviesa004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Sep 2024 02:29:42 -0700 From: Zhenzhong Duan To: qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, clg@redhat.com, eric.auger@redhat.com, mst@redhat.com, peterx@redhat.com, jasowang@redhat.com, jgg@nvidia.com, nicolinc@nvidia.com, joao.m.martins@oracle.com, clement.mathieu--drif@eviden.com, kevin.tian@intel.com, yi.l.liu@intel.com, chao.p.peng@intel.com, Zhenzhong Duan , Paolo Bonzini , Richard Henderson , Eduardo Habkost , Marcel Apfelbaum Subject: [PATCH v4 02/17] intel_iommu: Make pasid entry type check accurate Date: Mon, 30 Sep 2024 17:26:16 +0800 Message-Id: <20240930092631.2997543-3-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240930092631.2997543-1-zhenzhong.duan@intel.com> References: <20240930092631.2997543-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=198.175.65.21; envelope-from=zhenzhong.duan@intel.com; helo=mgamail.intel.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.095, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=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 When guest configures Nested Translation(011b) or First-stage Translation only (001b), type check passed unaccurately. Fails the type check in those cases as their simulation isn't supported yet. Fixes: fb43cf739e1 ("intel_iommu: scalable mode emulation") Suggested-by: Yi Liu Signed-off-by: Zhenzhong Duan Reviewed-by: Clément Mathieu--Drif Reviewed-by: Yi Liu Acked-by: Jason Wang --- hw/i386/intel_iommu.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 378e417b27..be7c8a670b 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -759,20 +759,16 @@ static inline bool vtd_pe_type_check(X86IOMMUState *x86_iommu, VTDPASIDEntry *pe) { switch (VTD_PE_GET_TYPE(pe)) { - case VTD_SM_PASID_ENTRY_FLT: case VTD_SM_PASID_ENTRY_SLT: - case VTD_SM_PASID_ENTRY_NESTED: - break; + return true; case VTD_SM_PASID_ENTRY_PT: - if (!x86_iommu->pt_supported) { - return false; - } - break; + return x86_iommu->pt_supported; + case VTD_SM_PASID_ENTRY_FLT: + case VTD_SM_PASID_ENTRY_NESTED: default: /* Unknown type */ return false; } - return true; } static inline bool vtd_pdire_present(VTDPASIDDirEntry *pdire)