From patchwork Mon Jan 15 10:37:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Duan, Zhenzhong" X-Patchwork-Id: 13519521 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 91A17C47DA2 for ; Mon, 15 Jan 2024 10:43:43 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rPKOZ-0002TO-Dd; Mon, 15 Jan 2024 05:40:43 -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 1rPKOX-0002ID-57 for qemu-devel@nongnu.org; Mon, 15 Jan 2024 05:40:41 -0500 Received: from mgamail.intel.com ([192.198.163.8]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rPKOT-0003GV-Fd for qemu-devel@nongnu.org; Mon, 15 Jan 2024 05:40:40 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1705315237; x=1736851237; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=6qvtGAeRI65jpIn0RDpdA0bxkS0bbMXh5alkN//6KZk=; b=CF9GlQX7tPfUFjd5TUaQztssTSZdXCPkLQQabMxAshkQXPUXYdU8FUlK zhsYO92p861yETJIQp5DqpCkkZb88rJTnXQ+y8J4D7BbTT+jBj7ZkSfcD SV/b6uYPA9h884MkCGj4N2moxiPJ8OKFNK2m1DzWz9QFxelxokd+utOzR nWkiLwyd7rRBw0ag9ack2eBO9heVhBgY1hMtji3GCnMqd36IZWhyT5SRs 6mbKrINEM6BHmaPW6M2fl5y6xxuPMwmoDeJXZGwX8XY06efrqpQ1i3dEY CtbbeSZP9VuePj00hsG4YH93CeTAnIAdFzjoLVcnp6XhfFhMqk0KKS7Yw A==; X-IronPort-AV: E=McAfee;i="6600,9927,10953"; a="13067761" X-IronPort-AV: E=Sophos;i="6.04,196,1695711600"; d="scan'208";a="13067761" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Jan 2024 02:40:35 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10953"; a="874065387" X-IronPort-AV: E=Sophos;i="6.04,196,1695711600"; d="scan'208";a="874065387" Received: from spr-s2600bt.bj.intel.com ([10.240.192.124]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Jan 2024 02:40:30 -0800 From: Zhenzhong Duan To: qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, clg@redhat.com, eric.auger@redhat.com, peterx@redhat.com, jasowang@redhat.com, mst@redhat.com, jgg@nvidia.com, nicolinc@nvidia.com, joao.m.martins@oracle.com, kevin.tian@intel.com, yi.l.liu@intel.com, yi.y.sun@intel.com, chao.p.peng@intel.com, Zhenzhong Duan , Marcel Apfelbaum , Paolo Bonzini , Richard Henderson , Eduardo Habkost Subject: [PATCH rfcv1 13/23] intel_iommu: process PASID-based iotlb invalidation Date: Mon, 15 Jan 2024 18:37:25 +0800 Message-Id: <20240115103735.132209-14-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240115103735.132209-1-zhenzhong.duan@intel.com> References: <20240115103735.132209-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=192.198.163.8; envelope-from=zhenzhong.duan@intel.com; helo=mgamail.intel.com X-Spam_score_int: -48 X-Spam_score: -4.9 X-Spam_bar: ---- X-Spam_report: (-4.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-2.758, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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 PASID-based iotlb (piotlb) is used during walking Intel VT-d stage-1 page table. This adds the basic framework for piotlb invalidation, detailed handling will be added in next patch. Signed-off-by: Yi Liu Signed-off-by: Zhenzhong Duan --- hw/i386/intel_iommu_internal.h | 13 +++++++++ hw/i386/intel_iommu.c | 52 ++++++++++++++++++++++++++++++++++ 2 files changed, 65 insertions(+) diff --git a/hw/i386/intel_iommu_internal.h b/hw/i386/intel_iommu_internal.h index 65fe07c13b..40361de207 100644 --- a/hw/i386/intel_iommu_internal.h +++ b/hw/i386/intel_iommu_internal.h @@ -458,6 +458,19 @@ typedef union VTDInvDesc VTDInvDesc; #define VTD_INV_DESC_PASIDC_PASID_SI (1ULL << 4) #define VTD_INV_DESC_PASIDC_GLOBAL (3ULL << 4) +#define VTD_INV_DESC_PIOTLB_ALL_IN_PASID (2ULL << 4) +#define VTD_INV_DESC_PIOTLB_PSI_IN_PASID (3ULL << 4) + +#define VTD_INV_DESC_PIOTLB_RSVD_VAL0 0xfff000000000ffc0ULL +#define VTD_INV_DESC_PIOTLB_RSVD_VAL1 0xf80ULL + +#define VTD_INV_DESC_PIOTLB_PASID(val) (((val) >> 32) & 0xfffffULL) +#define VTD_INV_DESC_PIOTLB_DID(val) (((val) >> 16) & \ + VTD_DOMAIN_ID_MASK) +#define VTD_INV_DESC_PIOTLB_ADDR(val) ((val) & ~0xfffULL) +#define VTD_INV_DESC_PIOTLB_AM(val) ((val) & 0x3fULL) +#define VTD_INV_DESC_PIOTLB_IH(val) (((val) >> 6) & 0x1) + /* Information about page-selective IOTLB invalidate */ struct VTDIOTLBPageInvInfo { uint16_t domain_id; diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 9058be9efd..6aa44b80d6 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -3786,6 +3786,54 @@ static bool vtd_process_pasid_desc(IntelIOMMUState *s, return !pc_info.error_happened ? true : false; } +static void vtd_piotlb_pasid_invalidate(IntelIOMMUState *s, + uint16_t domain_id, uint32_t pasid) +{ +} + +static void vtd_piotlb_page_invalidate(IntelIOMMUState *s, uint16_t domain_id, + uint32_t pasid, hwaddr addr, uint8_t am, + bool ih) +{ +} + +static bool vtd_process_piotlb_desc(IntelIOMMUState *s, + VTDInvDesc *inv_desc) +{ + uint16_t domain_id; + uint32_t pasid; + uint8_t am; + hwaddr addr; + + if ((inv_desc->val[0] & VTD_INV_DESC_PIOTLB_RSVD_VAL0) || + (inv_desc->val[1] & VTD_INV_DESC_PIOTLB_RSVD_VAL1)) { + error_report_once("non-zero-field-in-piotlb_inv_desc hi: 0x%" PRIx64 + " lo: 0x%" PRIx64, inv_desc->val[1], inv_desc->val[0]); + return false; + } + + domain_id = VTD_INV_DESC_PIOTLB_DID(inv_desc->val[0]); + pasid = VTD_INV_DESC_PIOTLB_PASID(inv_desc->val[0]); + switch (inv_desc->val[0] & VTD_INV_DESC_IOTLB_G) { + case VTD_INV_DESC_PIOTLB_ALL_IN_PASID: + vtd_piotlb_pasid_invalidate(s, domain_id, pasid); + break; + + case VTD_INV_DESC_PIOTLB_PSI_IN_PASID: + am = VTD_INV_DESC_PIOTLB_AM(inv_desc->val[1]); + addr = (hwaddr) VTD_INV_DESC_PIOTLB_ADDR(inv_desc->val[1]); + vtd_piotlb_page_invalidate(s, domain_id, pasid, addr, am, + VTD_INV_DESC_PIOTLB_IH(inv_desc->val[1])); + break; + + default: + error_report_once("Invalid granularity in P-IOTLB desc hi: 0x%" PRIx64 + " lo: 0x%" PRIx64, inv_desc->val[1], inv_desc->val[0]); + return false; + } + return true; +} + static bool vtd_process_inv_iec_desc(IntelIOMMUState *s, VTDInvDesc *inv_desc) { @@ -3895,6 +3943,10 @@ static bool vtd_process_inv_desc(IntelIOMMUState *s) break; case VTD_INV_DESC_PIOTLB: + trace_vtd_inv_desc("p-iotlb", inv_desc.val[1], inv_desc.val[0]); + if (!vtd_process_piotlb_desc(s, &inv_desc)) { + return false; + } break; case VTD_INV_DESC_WAIT: