From mboxrd@z Thu Jan 1 00:00:00 1970 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 46D3BCEACEF for ; Mon, 17 Nov 2025 09:41:46 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vKviW-0005GR-4p; Mon, 17 Nov 2025 04:40:12 -0500 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 1vKvi5-0004pm-Ao for qemu-devel@nongnu.org; Mon, 17 Nov 2025 04:39:46 -0500 Received: from mgamail.intel.com ([192.198.163.9]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vKvi2-0006HR-PQ for qemu-devel@nongnu.org; Mon, 17 Nov 2025 04:39:44 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1763372383; x=1794908383; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=fdEvgt4Hf5oA1p4+1zLuIE4pSVrInTBr6lVlAKnUoE8=; b=WqXx5Xu9QK2Qm2UOnC6jBeckMVqbRyJPUjE+7LpoSW6Jg7zFjveBzGEt ey6thqebn6O2dO4AFHrrxlGTEmvja2DtG0vOn6ie+zGfwH2Xtv33tY8mA GnnB7gJmmaoucKObj4cSt9c3+Vkk7x9Ns4IywrocW/eMwbXpEpoeTuMPG /qfyalWBq2pKFoB4nbP9ZR1kXnv7KyV5T/4gxSB3iEqjVjt21Jsug8S17 8GQ5CDsXHkzxsYP0Ec/j7QNfpT3Qwe9PBZBWwUk933Kaasr3deq2EGQCq r0WBgNepvyCnBSN3Op7M49RGiUIQB/QT29k+heLWZulFndcOtJi3fgRh+ w==; X-CSE-ConnectionGUID: xdpENSKxS4WkpfCPwE0xmA== X-CSE-MsgGUID: f2sM40GRSKOL9ui+89mjwg== X-IronPort-AV: E=McAfee;i="6800,10657,11615"; a="76046032" X-IronPort-AV: E=Sophos;i="6.19,311,1754982000"; d="scan'208";a="76046032" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by fmvoesa103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Nov 2025 01:39:32 -0800 X-CSE-ConnectionGUID: feAFzhc+TqSeXoKjKL/lwQ== X-CSE-MsgGUID: 8oNdz3zySbm27vvj6+V9rA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,311,1754982000"; d="scan'208";a="190070955" Received: from unknown (HELO gnr-sp-2s-612.sh.intel.com) ([10.112.230.229]) by fmviesa007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Nov 2025 01:39:28 -0800 From: Zhenzhong Duan To: qemu-devel@nongnu.org Cc: alex@shazbot.org, clg@redhat.com, eric.auger@redhat.com, mst@redhat.com, jasowang@redhat.com, peterx@redhat.com, ddutile@redhat.com, jgg@nvidia.com, nicolinc@nvidia.com, skolothumtho@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 Subject: [PATCH v8 15/23] intel_iommu: Replay all pasid bindings when either SRTP or TE bit is changed Date: Mon, 17 Nov 2025 04:37:18 -0500 Message-ID: <20251117093729.1121324-16-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20251117093729.1121324-1-zhenzhong.duan@intel.com> References: <20251117093729.1121324-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=192.198.163.9; envelope-from=zhenzhong.duan@intel.com; helo=mgamail.intel.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, 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 From: Yi Liu When either 'Set Root Table Pointer' or 'Translation Enable' bit is changed, all pasid bindings on host side become stale and need to be updated. Introduce a helper function vtd_replay_pasid_bindings_all() to go through all pasid entries in all passthrough devices to update host side bindings. Signed-off-by: Yi Liu Signed-off-by: Zhenzhong Duan Reviewed-by: Eric Auger --- hw/i386/intel_iommu.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index ccff240660..2c382fe7c8 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -77,6 +77,7 @@ struct vtd_iotlb_key { static void vtd_address_space_refresh_all(IntelIOMMUState *s); static void vtd_address_space_unmap(VTDAddressSpace *as, IOMMUNotifier *n); +static void vtd_replay_pasid_bindings_all(IntelIOMMUState *s); static void vtd_pasid_cache_reset_locked(IntelIOMMUState *s) { @@ -2630,6 +2631,7 @@ static void vtd_handle_gcmd_srtp(IntelIOMMUState *s) vtd_set_clear_mask_long(s, DMAR_GSTS_REG, 0, VTD_GSTS_RTPS); vtd_reset_caches(s); vtd_address_space_refresh_all(s); + vtd_replay_pasid_bindings_all(s); } /* Set Interrupt Remap Table Pointer */ @@ -2664,6 +2666,7 @@ static void vtd_handle_gcmd_te(IntelIOMMUState *s, bool en) vtd_reset_caches(s); vtd_address_space_refresh_all(s); + vtd_replay_pasid_bindings_all(s); } /* Handle Interrupt Remap Enable/Disable */ @@ -3163,6 +3166,13 @@ static void vtd_pasid_cache_sync(IntelIOMMUState *s, VTDPASIDCacheInfo *pc_info) vtd_iommu_unlock(s); } +static void vtd_replay_pasid_bindings_all(IntelIOMMUState *s) +{ + VTDPASIDCacheInfo pc_info = { .type = VTD_INV_DESC_PASIDC_G_GLOBAL }; + + vtd_pasid_cache_sync(s, &pc_info); +} + static bool vtd_process_pasid_desc(IntelIOMMUState *s, VTDInvDesc *inv_desc) { -- 2.47.1