From patchwork Wed May 22 06:23:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Duan, Zhenzhong" X-Patchwork-Id: 13670475 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 4E9D2C25B77 for ; Wed, 22 May 2024 06:27:08 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s9fQv-0004xo-D6; Wed, 22 May 2024 02:26:41 -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 1s9fQY-0004gi-GB for qemu-devel@nongnu.org; Wed, 22 May 2024 02:26:23 -0400 Received: from mgamail.intel.com ([192.198.163.7]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s9fQV-0006eK-M1 for qemu-devel@nongnu.org; Wed, 22 May 2024 02:26:18 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1716359176; x=1747895176; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=uPUVQFGDFxFSLvmCcNQ6Dut0feFHx5NOEumo20sJpRw=; b=geR+YSrtMlZoaVU+zdnc03/4q1PrifD7SBIdeiXPJ6hYOyOVwhX6r5aA 0a+kSXkrUXscAO7FWqMf3bgQ2ZB4HRuBQq7MpHXlLm0HbU+vwjtz+ovMf gdH4kYfzOB4qCfSYxaYFTST4Y9UuAOC7f9RthhzQ1JZbO27G/6nzvMDkh 7nR2Mn7fg7arTnyAORjLKJmlPYsSHPl/dIFRfn34ooi4slG1LmrUprPgy gLnzguMJAun85/RBLSKNLhXKIQxuqBufC4le/yQ/eAdhArAXakmFzi9ZM XaEgfd1ZNpL0V5FK1Yax97E0eBty0vhxFSUQzb/yighHQDm6qeryfLnqQ g==; X-CSE-ConnectionGUID: fh5bGqBIRrK66zNSQ7pvEw== X-CSE-MsgGUID: 2S/TTeMkQ2iFCaPK/GQqXA== X-IronPort-AV: E=McAfee;i="6600,9927,11079"; a="37972490" X-IronPort-AV: E=Sophos;i="6.08,179,1712646000"; d="scan'208";a="37972490" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 May 2024 23:26:15 -0700 X-CSE-ConnectionGUID: /2IrnlxoSW+ZZGmOi1W3Ug== X-CSE-MsgGUID: BmmNIJUeQlCKl48ONHnT+w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,179,1712646000"; d="scan'208";a="33597713" Received: from unknown (HELO SPR-S2600BT.bj.intel.com) ([10.240.192.124]) by orviesa006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 May 2024 23:26:10 -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, Yi Sun , Zhenzhong Duan , Marcel Apfelbaum , Paolo Bonzini , Richard Henderson , Eduardo Habkost Subject: [PATCH rfcv2 05/17] intel_iommu: Rename slpte to pte Date: Wed, 22 May 2024 14:23:01 +0800 Message-Id: <20240522062313.453317-6-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240522062313.453317-1-zhenzhong.duan@intel.com> References: <20240522062313.453317-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=192.198.163.7; 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, 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 Because we will support both FST(a.k.a, FLT) and SST(a.k.a, SLT) translation, rename slpte to pte to make it generic. Signed-off-by: Yi Liu Signed-off-by: Yi Sun Signed-off-by: Zhenzhong Duan --- hw/i386/intel_iommu_internal.h | 3 ++- include/hw/i386/intel_iommu.h | 2 +- hw/i386/intel_iommu.c | 39 +++++++++++++++++----------------- 3 files changed, 23 insertions(+), 21 deletions(-) diff --git a/hw/i386/intel_iommu_internal.h b/hw/i386/intel_iommu_internal.h index b0d9b1f986..0e240d6d54 100644 --- a/hw/i386/intel_iommu_internal.h +++ b/hw/i386/intel_iommu_internal.h @@ -553,10 +553,11 @@ typedef struct VTDRootEntry VTDRootEntry; #define VTD_SL_RW_MASK 3ULL #define VTD_SL_R 1ULL #define VTD_SL_W (1ULL << 1) -#define VTD_SL_PT_BASE_ADDR_MASK(aw) (~(VTD_PAGE_SIZE - 1) & VTD_HAW_MASK(aw)) #define VTD_SL_IGN_COM 0xbff0000000000000ULL #define VTD_SL_TM (1ULL << 62) +/* Common for both First Level and Second Level */ +#define VTD_PT_BASE_ADDR_MASK(aw) (~(VTD_PAGE_SIZE - 1) & VTD_HAW_MASK(aw)) typedef struct VTDHostIOMMUDevice { IntelIOMMUState *iommu_state; diff --git a/include/hw/i386/intel_iommu.h b/include/hw/i386/intel_iommu.h index 9ba9c45015..011f374883 100644 --- a/include/hw/i386/intel_iommu.h +++ b/include/hw/i386/intel_iommu.h @@ -153,7 +153,7 @@ struct VTDIOTLBEntry { uint64_t gfn; uint16_t domain_id; uint32_t pasid; - uint64_t slpte; + uint64_t pte; uint64_t mask; uint8_t access_flags; }; diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index ed95b5ba2e..544e8f0e40 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -360,7 +360,7 @@ out: /* Must be with IOMMU lock held */ static void vtd_update_iotlb(IntelIOMMUState *s, uint16_t source_id, - uint16_t domain_id, hwaddr addr, uint64_t slpte, + uint16_t domain_id, hwaddr addr, uint64_t pte, uint8_t access_flags, uint32_t level, uint32_t pasid) { @@ -368,7 +368,7 @@ static void vtd_update_iotlb(IntelIOMMUState *s, uint16_t source_id, struct vtd_iotlb_key *key = g_malloc(sizeof(*key)); uint64_t gfn = vtd_get_iotlb_gfn(addr, level); - trace_vtd_iotlb_page_update(source_id, addr, slpte, domain_id); + trace_vtd_iotlb_page_update(source_id, addr, pte, domain_id); if (g_hash_table_size(s->iotlb) >= VTD_IOTLB_MAX_SIZE) { trace_vtd_iotlb_reset("iotlb exceeds size limit"); vtd_reset_iotlb_locked(s); @@ -376,7 +376,7 @@ static void vtd_update_iotlb(IntelIOMMUState *s, uint16_t source_id, entry->gfn = gfn; entry->domain_id = domain_id; - entry->slpte = slpte; + entry->pte = pte; entry->access_flags = access_flags; entry->mask = vtd_slpt_level_page_mask(level); entry->pasid = pasid; @@ -693,9 +693,9 @@ static inline dma_addr_t vtd_ce_get_slpt_base(VTDContextEntry *ce) return ce->lo & VTD_CONTEXT_ENTRY_SLPTPTR; } -static inline uint64_t vtd_get_slpte_addr(uint64_t slpte, uint8_t aw) +static inline uint64_t vtd_get_pte_addr(uint64_t slpte, uint8_t aw) { - return slpte & VTD_SL_PT_BASE_ADDR_MASK(aw); + return slpte & VTD_PT_BASE_ADDR_MASK(aw); } /* Whether the pte indicates the address of the page frame */ @@ -1152,11 +1152,11 @@ static int vtd_iova_to_slpte(IntelIOMMUState *s, VTDContextEntry *ce, *slpte_level = level; break; } - addr = vtd_get_slpte_addr(slpte, aw_bits); + addr = vtd_get_pte_addr(slpte, aw_bits); level--; } - xlat = vtd_get_slpte_addr(*slptep, aw_bits); + xlat = vtd_get_pte_addr(*slptep, aw_bits); size = ~vtd_slpt_level_page_mask(level) + 1; /* @@ -1343,7 +1343,7 @@ static int vtd_page_walk_level(dma_addr_t addr, uint64_t start, * This is a valid PDE (or even bigger than PDE). We need * to walk one further level. */ - ret = vtd_page_walk_level(vtd_get_slpte_addr(slpte, info->aw), + ret = vtd_page_walk_level(vtd_get_pte_addr(slpte, info->aw), iova, MIN(iova_next, end), level - 1, read_cur, write_cur, info); } else { @@ -1360,7 +1360,7 @@ static int vtd_page_walk_level(dma_addr_t addr, uint64_t start, event.entry.perm = IOMMU_ACCESS_FLAG(read_cur, write_cur); event.entry.addr_mask = ~subpage_mask; /* NOTE: this is only meaningful if entry_valid == true */ - event.entry.translated_addr = vtd_get_slpte_addr(slpte, info->aw); + event.entry.translated_addr = vtd_get_pte_addr(slpte, info->aw); event.type = event.entry.perm ? IOMMU_NOTIFIER_MAP : IOMMU_NOTIFIER_UNMAP; ret = vtd_page_walk_one(&event, info); @@ -1883,7 +1883,7 @@ static bool vtd_do_iommu_translate(VTDAddressSpace *vtd_as, PCIBus *bus, VTDContextEntry ce; uint8_t bus_num = pci_bus_num(bus); VTDContextCacheEntry *cc_entry; - uint64_t slpte, page_mask; + uint64_t pte, page_mask; uint32_t level, pasid = vtd_as->pasid; uint16_t source_id = PCI_BUILD_BDF(bus_num, devfn); int ret_fr; @@ -1904,13 +1904,13 @@ static bool vtd_do_iommu_translate(VTDAddressSpace *vtd_as, PCIBus *bus, cc_entry = &vtd_as->context_cache_entry; - /* Try to fetch slpte form IOTLB, we don't need RID2PASID logic */ + /* Try to fetch pte form IOTLB, we don't need RID2PASID logic */ if (!rid2pasid) { iotlb_entry = vtd_lookup_iotlb(s, source_id, pasid, addr); if (iotlb_entry) { - trace_vtd_iotlb_page_hit(source_id, addr, iotlb_entry->slpte, + trace_vtd_iotlb_page_hit(source_id, addr, iotlb_entry->pte, iotlb_entry->domain_id); - slpte = iotlb_entry->slpte; + pte = iotlb_entry->pte; access_flags = iotlb_entry->access_flags; page_mask = iotlb_entry->mask; goto out; @@ -1982,21 +1982,22 @@ static bool vtd_do_iommu_translate(VTDAddressSpace *vtd_as, PCIBus *bus, return true; } - /* Try to fetch slpte form IOTLB for RID2PASID slow path */ + /* Try to fetch pte form IOTLB for RID2PASID slow path */ if (rid2pasid) { iotlb_entry = vtd_lookup_iotlb(s, source_id, pasid, addr); if (iotlb_entry) { - trace_vtd_iotlb_page_hit(source_id, addr, iotlb_entry->slpte, + trace_vtd_iotlb_page_hit(source_id, addr, iotlb_entry->pte, iotlb_entry->domain_id); - slpte = iotlb_entry->slpte; + pte = iotlb_entry->pte; access_flags = iotlb_entry->access_flags; page_mask = iotlb_entry->mask; goto out; } } - ret_fr = vtd_iova_to_slpte(s, &ce, addr, is_write, &slpte, &level, + ret_fr = vtd_iova_to_slpte(s, &ce, addr, is_write, &pte, &level, &reads, &writes, s->aw_bits, pasid); + if (ret_fr) { vtd_report_fault(s, -ret_fr, is_fpd_set, source_id, addr, is_write, pasid != PCI_NO_PASID, pasid); @@ -2006,11 +2007,11 @@ static bool vtd_do_iommu_translate(VTDAddressSpace *vtd_as, PCIBus *bus, page_mask = vtd_slpt_level_page_mask(level); access_flags = IOMMU_ACCESS_FLAG(reads, writes); vtd_update_iotlb(s, source_id, vtd_get_domain_id(s, &ce, pasid), - addr, slpte, access_flags, level, pasid); + addr, pte, access_flags, level, pasid); out: vtd_iommu_unlock(s); entry->iova = addr & page_mask; - entry->translated_addr = vtd_get_slpte_addr(slpte, s->aw_bits) & page_mask; + entry->translated_addr = vtd_get_pte_addr(pte, s->aw_bits) & page_mask; entry->addr_mask = ~page_mask; entry->perm = access_flags; return true;