/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2013-2015 The FreeBSD Foundation * * This software was developed by Konstantin Belousov * under sponsorship from the FreeBSD Foundation. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef __X86_IOMMU_INTEL_REG_H #define __X86_IOMMU_INTEL_REG_H #define DMAR_PAGE_SIZE PAGE_SIZE #define DMAR_PAGE_MASK (DMAR_PAGE_SIZE - 1) #define DMAR_PAGE_SHIFT PAGE_SHIFT #define DMAR_NPTEPG (DMAR_PAGE_SIZE / sizeof(dmar_pte_t)) #define DMAR_NPTEPGSHIFT 9 #define DMAR_PTEMASK (DMAR_NPTEPG - 1) #define IOMMU_PAGE_SIZE DMAR_PAGE_SIZE #define IOMMU_PAGE_MASK DMAR_PAGE_MASK typedef struct dmar_root_entry { uint64_t r1; uint64_t r2; } dmar_root_entry_t; #define DMAR_ROOT_R1_P 1 /* Present */ #define DMAR_ROOT_R1_CTP_MASK 0xfffffffffffff000 /* Mask for Context-Entry Table Pointer */ #define DMAR_CTX_CNT (DMAR_PAGE_SIZE / sizeof(dmar_root_entry_t)) typedef struct dmar_ctx_entry { uint64_t ctx1; uint64_t ctx2; } dmar_ctx_entry_t; #define DMAR_CTX1_P 1 /* Present */ #define DMAR_CTX1_FPD 2 /* Fault Processing Disable */ /* Translation Type: */ #define DMAR_CTX1_T_UNTR 0 /* only Untranslated */ #define DMAR_CTX1_T_TR 4 /* both Untranslated and Translated */ #define DMAR_CTX1_T_PASS 8 /* Pass-Through */ #define DMAR_CTX1_ASR_MASK 0xfffffffffffff000 /* Mask for the Address Space Root */ #define DMAR_CTX2_AW_2LVL 0 /* 2-level page tables */ #define DMAR_CTX2_AW_3LVL 1 /* 3-level page tables */ #define DMAR_CTX2_AW_4LVL 2 /* 4-level page tables */ #define DMAR_CTX2_AW_5LVL 3 /* 5-level page tables */ #define DMAR_CTX2_AW_6LVL 4 /* 6-level page tables */ #define DMAR_CTX2_DID_MASK 0xffff0 #define DMAR_CTX2_DID(x) ((x) << 8) /* Domain Identifier */ #define DMAR_CTX2_GET_DID(ctx2) (((ctx2) & DMAR_CTX2_DID_MASK) >> 8) typedef struct dmar_pte { uint64_t pte; } dmar_pte_t; #define DMAR_PTE_R 1 /* Read */ #define DMAR_PTE_W (1 << 1) /* Write */ #define DMAR_PTE_SP (1 << 7) /* Super Page */ #define DMAR_PTE_SNP (1 << 11) /* Snoop Behaviour */ #define DMAR_PTE_ADDR_MASK 0xffffffffff000 /* Address Mask */ #define DMAR_PTE_TM (1ULL << 62) /* Transient Mapping */ typedef struct dmar_irte { uint64_t irte1; uint64_t irte2; } dmar_irte_t; /* Source Validation Type */ #define DMAR_IRTE2_SVT_NONE (0ULL << (82 - 64)) #define DMAR_IRTE2_SVT_RID (1ULL << (82 - 64)) #define DMAR_IRTE2_SVT_BUS (2ULL << (82 - 64)) /* Source-id Qualifier */ #define DMAR_IRTE2_SQ_RID (0ULL << (80 - 64)) #define DMAR_IRTE2_SQ_RID_N2 (1ULL << (80 - 64)) #define DMAR_IRTE2_SQ_RID_N21 (2ULL << (80 - 64)) #define DMAR_IRTE2_SQ_RID_N210 (3ULL << (80 - 64)) /* Source Identifier */ #define DMAR_IRTE2_SID_RID(x) ((uint64_t)(x)) #define DMAR_IRTE2_SID_BUS(start, end) ((((uint64_t)(start)) << 8) | (end)) /* Destination Id */ #define DMAR_IRTE1_DST_xAPIC(x) (((uint64_t)(x)) << 40) #define DMAR_IRTE1_DST_x2APIC(x) (((uint64_t)(x)) << 32) /* Vector */ #define DMAR_IRTE1_V(x) (((uint64_t)x) << 16) #define DMAR_IRTE1_IM_POSTED (1ULL << 15) /* Posted */ /* Delivery Mode */ #define DMAR_IRTE1_DLM_FM (0ULL << 5) #define DMAR_IRTE1_DLM_LP (1ULL << 5) #define DMAR_IRTE1_DLM_SMI (2ULL << 5) #define DMAR_IRTE1_DLM_NMI (4ULL << 5) #define DMAR_IRTE1_DLM_INIT (5ULL << 5) #define DMAR_IRTE1_DLM_ExtINT (7ULL << 5) /* Trigger Mode */ #define DMAR_IRTE1_TM_EDGE (0ULL << 4) #define DMAR_IRTE1_TM_LEVEL (1ULL << 4) /* Redirection Hint */ #define DMAR_IRTE1_RH_DIRECT (0ULL << 3) #define DMAR_IRTE1_RH_SELECT (1ULL << 3) /* Destination Mode */ #define DMAR_IRTE1_DM_PHYSICAL (0ULL << 2) #define DMAR_IRTE1_DM_LOGICAL (1ULL << 2) #define DMAR_IRTE1_FPD (1ULL << 1) /* Fault Processing Disable */ #define DMAR_IRTE1_P (1ULL) /* Present */ /* Version register */ #define DMAR_VER_REG 0 #define DMAR_MAJOR_VER(x) (((x) >> 4) & 0xf) #define DMAR_MINOR_VER(x) ((x) & 0xf) /* Capabilities register */ #define DMAR_CAP_REG 0x8 #define DMAR_CAP_PI (1ULL << 59) /* Posted Interrupts */ #define DMAR_CAP_FL1GP (1ULL << 56) /* First Level 1GByte Page */ #define DMAR_CAP_DRD (1ULL << 55) /* DMA Read Draining */ #define DMAR_CAP_DWD (1ULL << 54) /* DMA Write Draining */ #define DMAR_CAP_MAMV(x) ((u_int)(((x) >> 48) & 0x3f)) /* Maximum Address Mask */ #define DMAR_CAP_NFR(x) ((u_int)(((x) >> 40) & 0xff) + 1) /* Num of Fault-recording regs */ #define DMAR_CAP_PSI (1ULL << 39) /* Page Selective Invalidation */ #define DMAR_CAP_SPS(x) ((u_int)(((x) >> 34) & 0xf)) /* Super-Page Support */ #define DMAR_CAP_SPS_2M 0x1 #define DMAR_CAP_SPS_1G 0x2 #define DMAR_CAP_SPS_512G 0x4 #define DMAR_CAP_SPS_1T 0x8 #define DMAR_CAP_FRO(x) ((u_int)(((x) >> 24) & 0x1ff)) /* Fault-recording reg offset */ #define DMAR_CAP_ISOCH (1 << 23) /* Isochrony */ #define DMAR_CAP_ZLR (1 << 22) /* Zero-length reads */ #define DMAR_CAP_MGAW(x) ((u_int)(((x) >> 16) & 0x3f)) /* Max Guest Address Width */ #define DMAR_CAP_SAGAW(x) ((u_int)(((x) >> 8) & 0x1f)) /* Adjusted Guest Address Width */ #define DMAR_CAP_SAGAW_2LVL 0x01 #define DMAR_CAP_SAGAW_3LVL 0x02 #define DMAR_CAP_SAGAW_4LVL 0x04 #define DMAR_CAP_SAGAW_5LVL 0x08 #define DMAR_CAP_SAGAW_6LVL 0x10 #define DMAR_CAP_CM (1 << 7) /* Caching mode */ #define DMAR_CAP_PHMR (1 << 6) /* Protected High-mem Region */ #define DMAR_CAP_PLMR (1 << 5) /* Protected Low-mem Region */ #define DMAR_CAP_RWBF (1 << 4) /* Required Write-Buffer Flushing */ #define DMAR_CAP_AFL (1 << 3) /* Advanced Fault Logging */ #define DMAR_CAP_ND(x) ((u_int)((x) & 0x3)) /* Number of domains */ /* Extended Capabilities register */ #define DMAR_ECAP_REG 0x10 #define DMAR_ECAP_PSS(x) (((x) >> 35) & 0xf) /* PASID Size Supported */ #define DMAR_ECAP_EAFS (1ULL << 34) /* Extended Accessed Flag */ #define DMAR_ECAP_NWFS (1ULL << 33) /* No Write Flag */ #define DMAR_ECAP_SRS (1ULL << 31) /* Supervisor Request */ #define DMAR_ECAP_ERS (1ULL << 30) /* Execute Request */ #define DMAR_ECAP_PRS (1ULL << 29) /* Page Request */ #define DMAR_ECAP_PASID (1ULL << 28) /* Process Address Space Id */ #define DMAR_ECAP_DIS (1ULL << 27) /* Deferred Invalidate */ #define DMAR_ECAP_NEST (1ULL << 26) /* Nested Translation */ #define DMAR_ECAP_MTS (1ULL << 25) /* Memory Type */ #define DMAR_ECAP_ECS (1ULL << 24) /* Extended Context */ #define DMAR_ECAP_MHMV(x) ((u_int)(((x) >> 20) & 0xf)) /* Maximum Handle Mask Value */ #define DMAR_ECAP_IRO(x) ((u_int)(((x) >> 8) & 0x3ff)) /* IOTLB Register Offset */ #define DMAR_ECAP_SC (1 << 7) /* Snoop Control */ #define DMAR_ECAP_PT (1 << 6) /* Pass Through */ #define DMAR_ECAP_EIM (1 << 4) /* Extended Interrupt Mode (x2APIC) */ #define DMAR_ECAP_IR (1 << 3) /* Interrupt Remapping */ #define DMAR_ECAP_DI (1 << 2) /* Device IOTLB */ #define DMAR_ECAP_QI (1 << 1) /* Queued Invalidation */ #define DMAR_ECAP_C (1 << 0) /* Coherency */ /* Global Command register */ #define DMAR_GCMD_REG 0x18 #define DMAR_GCMD_TE (1U << 31) /* Translation Enable */ #define DMAR_GCMD_SRTP (1 << 30) /* Set Root Table Pointer */ #define DMAR_GCMD_SFL (1 << 29) /* Set Fault Log */ #define DMAR_GCMD_EAFL (1 << 28) /* Enable Advanced Fault Logging */ #define DMAR_GCMD_WBF (1 << 27) /* Write Buffer Flush */ #define DMAR_GCMD_QIE (1 << 26) /* Queued Invalidation Enable */ #define DMAR_GCMD_IRE (1 << 25) /* Interrupt Remapping Enable */ #define DMAR_GCMD_SIRTP (1 << 24) /* Set Interrupt Remap Table Pointer */ #define DMAR_GCMD_CFI (1 << 23) /* Compatibility Format Interrupt */ /* Global Status register */ #define DMAR_GSTS_REG 0x1c #define DMAR_GSTS_TES (1U << 31) /* Translation Enable Status */ #define DMAR_GSTS_RTPS (1 << 30) /* Root Table Pointer Status */ #define DMAR_GSTS_FLS (1 << 29) /* Fault Log Status */ #define DMAR_GSTS_AFLS (1 << 28) /* Advanced Fault Logging Status */ #define DMAR_GSTS_WBFS (1 << 27) /* Write Buffer Flush Status */ #define DMAR_GSTS_QIES (1 << 26) /* Queued Invalidation Enable Status */ #define DMAR_GSTS_IRES (1 << 25) /* Interrupt Remapping Enable Status */ #define DMAR_GSTS_IRTPS (1 << 24) /* Interrupt Remapping Table Pointer Status */ #define DMAR_GSTS_CFIS (1 << 23) /* Compatibility Format Interrupt Status */ /* Root-Entry Table Address register */ #define DMAR_RTADDR_REG 0x20 #define DMAR_RTADDR_RTT (1 << 11) /* Root Table Type */ #define DMAR_RTADDR_RTA_MASK 0xfffffffffffff000 /* Context Command register */ #define DMAR_CCMD_REG 0x28 #define DMAR_CCMD_ICC (1ULL << 63) /* Invalidate Context-Cache */ #define DMAR_CCMD_ICC32 (1U << 31) #define DMAR_CCMD_CIRG_MASK (0x3ULL << 61) /* Context Invalidation Request Granularity */ #define DMAR_CCMD_CIRG_GLOB (0x1ULL << 61) /* Global */ #define DMAR_CCMD_CIRG_DOM (0x2ULL << 61) /* Domain */ #define DMAR_CCMD_CIRG_DEV (0x3ULL << 61) /* Device */ #define DMAR_CCMD_CAIG(x) (((x) >> 59) & 0x3) /* Context Actual Invalidation Granularity */ #define DMAR_CCMD_CAIG_GLOB 0x1 /* Global */ #define DMAR_CCMD_CAIG_DOM 0x2 /* Domain */ #define DMAR_CCMD_CAIG_DEV 0x3 /* Device */ #define DMAR_CCMD_FM (0x3UUL << 32) /* Function Mask */ #define DMAR_CCMD_SID(x) (((x) & 0xffff) << 16) /* Source-ID */ #define DMAR_CCMD_DID(x) ((x) & 0xffff) /* Domain-ID */ /* Invalidate Address register */ #define DMAR_IVA_REG_OFF 0 #define DMAR_IVA_IH (1 << 6) /* Invalidation Hint */ #define DMAR_IVA_AM(x) ((x) & 0x1f) /* Address Mask */ #define DMAR_IVA_ADDR(x) ((x) & ~0xfffULL) /* Address */ /* IOTLB Invalidate register */ #define DMAR_IOTLB_REG_OFF 0x8 #define DMAR_IOTLB_IVT (1ULL << 63) /* Invalidate IOTLB */ #define DMAR_IOTLB_IVT32 (1U << 31) #define DMAR_IOTLB_IIRG_MASK (0x3ULL << 60) /* Invalidation Request Granularity */ #define DMAR_IOTLB_IIRG_GLB (0x1ULL << 60) /* Global */ #define DMAR_IOTLB_IIRG_DOM (0x2ULL << 60) /* Domain-selective */ #define DMAR_IOTLB_IIRG_PAGE (0x3ULL << 60) /* Page-selective */ #define DMAR_IOTLB_IAIG_MASK (0x3ULL << 57) /* Actual Invalidation Granularity */ #define DMAR_IOTLB_IAIG_INVLD 0 /* Hw detected error */ #define DMAR_IOTLB_IAIG_GLB (0x1ULL << 57) /* Global */ #define DMAR_IOTLB_IAIG_DOM (0x2ULL << 57) /* Domain-selective */ #define DMAR_IOTLB_IAIG_PAGE (0x3ULL << 57) /* Page-selective */ #define DMAR_IOTLB_DR (0x1ULL << 49) /* Drain Reads */ #define DMAR_IOTLB_DW (0x1ULL << 48) /* Drain Writes */ #define DMAR_IOTLB_DID(x) (((uint64_t)(x) & 0xffff) << 32) /* Domain Id */ /* Fault Status register */ #define DMAR_FSTS_REG 0x34 #define DMAR_FSTS_FRI(x) (((x) >> 8) & 0xff) /* Fault Record Index */ #define DMAR_FSTS_ITE (1 << 6) /* Invalidation Time-out */ #define DMAR_FSTS_ICE (1 << 5) /* Invalidation Completion */ #define DMAR_FSTS_IQE (1 << 4) /* Invalidation Queue */ #define DMAR_FSTS_APF (1 << 3) /* Advanced Pending Fault */ #define DMAR_FSTS_AFO (1 << 2) /* Advanced Fault Overflow */ #define DMAR_FSTS_PPF (1 << 1) /* Primary Pending Fault */ #define DMAR_FSTS_PFO 1 /* Fault Overflow */ /* Fault Event Control register */ #define DMAR_FECTL_REG 0x38 #define DMAR_FECTL_IM (1U << 31) /* Interrupt Mask */ #define DMAR_FECTL_IP (1 << 30) /* Interrupt Pending */ /* Fault Event Data register */ #define DMAR_FEDATA_REG 0x3c /* Fault Event Address register */ #define DMAR_FEADDR_REG 0x40 /* Fault Event Upper Address register */ #define DMAR_FEUADDR_REG 0x44 /* Advanced Fault Log register */ #define DMAR_AFLOG_REG 0x58 /* Fault Recording Register, also usable for Advanced Fault Log records */ #define DMAR_FRCD2_F (1ULL << 63) /* Fault */ #define DMAR_FRCD2_F32 (1U << 31) #define DMAR_FRCD2_T(x) ((int)((x >> 62) & 1)) /* Type */ #define DMAR_FRCD2_T_W 0 /* Write request */ #define DMAR_FRCD2_T_R 1 /* Read or AtomicOp */ #define DMAR_FRCD2_AT(x) ((int)((x >> 60) & 0x3)) /* Address Type */ #define DMAR_FRCD2_FR(x) ((int)((x >> 32) & 0xff)) /* Fault Reason */ #define DMAR_FRCD2_SID(x) ((int)(x & 0xffff)) /* Source Identifier */ #define DMAR_FRCS1_FI_MASK 0xffffffffff000 /* Fault Info, Address Mask */ /* Protected Memory Enable register */ #define DMAR_PMEN_REG 0x64 #define DMAR_PMEN_EPM (1U << 31) /* Enable Protected Memory */ #define DMAR_PMEN_PRS 1 /* Protected Region Status */ /* Protected Low-Memory Base register */ #define DMAR_PLMBASE_REG 0x68 /* Protected Low-Memory Limit register */ #define DMAR_PLMLIMIT_REG 0x6c /* Protected High-Memory Base register */ #define DMAR_PHMBASE_REG 0x70 /* Protected High-Memory Limit register */ #define DMAR_PHMLIMIT_REG 0x78 /* Queued Invalidation Descriptors */ #define DMAR_IQ_DESCR_SZ_SHIFT 4 /* Shift for descriptor count to ring offset */ #define DMAR_IQ_DESCR_SZ (1 << DMAR_IQ_DESCR_SZ_SHIFT) /* Descriptor size */ /* Context-cache Invalidate Descriptor */ #define DMAR_IQ_DESCR_CTX_INV 0x1 #define DMAR_IQ_DESCR_CTX_GLOB (0x1 << 4) /* Granularity: Global */ #define DMAR_IQ_DESCR_CTX_DOM (0x2 << 4) /* Granularity: Domain */ #define DMAR_IQ_DESCR_CTX_DEV (0x3 << 4) /* Granularity: Device */ #define DMAR_IQ_DESCR_CTX_DID(x) (((uint32_t)(x)) << 16) /* Domain Id */ #define DMAR_IQ_DESCR_CTX_SRC(x) (((uint64_t)(x)) << 32) /* Source Id */ #define DMAR_IQ_DESCR_CTX_FM(x) (((uint64_t)(x)) << 48) /* Function Mask */ /* IOTLB Invalidate Descriptor */ #define DMAR_IQ_DESCR_IOTLB_INV 0x2 #define DMAR_IQ_DESCR_IOTLB_GLOB (0x1 << 4) /* Granularity: Global */ #define DMAR_IQ_DESCR_IOTLB_DOM (0x2 << 4) /* Granularity: Domain */ #define DMAR_IQ_DESCR_IOTLB_PAGE (0x3 << 4) /* Granularity: Page */ #define DMAR_IQ_DESCR_IOTLB_DW (1 << 6) /* Drain Writes */ #define DMAR_IQ_DESCR_IOTLB_DR (1 << 7) /* Drain Reads */ #define DMAR_IQ_DESCR_IOTLB_DID(x) (((uint32_t)(x)) << 16) /* Domain Id */ /* Device-TLB Invalidate Descriptor */ #define DMAR_IQ_DESCR_DTLB_INV 0x3 /* Invalidate Interrupt Entry Cache */ #define DMAR_IQ_DESCR_IEC_INV 0x4 #define DMAR_IQ_DESCR_IEC_IDX (1 << 4) /* Index-Selective Invalidation */ #define DMAR_IQ_DESCR_IEC_IIDX(x) (((uint64_t)x) << 32) /* Interrupt Index */ #define DMAR_IQ_DESCR_IEC_IM(x) ((x) << 27) /* Index Mask */ /* Invalidation Wait Descriptor */ #define DMAR_IQ_DESCR_WAIT_ID 0x5 #define DMAR_IQ_DESCR_WAIT_IF (1 << 4) /* Interrupt Flag */ #define DMAR_IQ_DESCR_WAIT_SW (1 << 5) /* Status Write */ #define DMAR_IQ_DESCR_WAIT_FN (1 << 6) /* Fence */ #define DMAR_IQ_DESCR_WAIT_SD(x) (((uint64_t)(x)) << 32) /* Status Data */ /* Extended IOTLB Invalidate Descriptor */ #define DMAR_IQ_DESCR_EIOTLB_INV 0x6 /* PASID-Cache Invalidate Descriptor */ #define DMAR_IQ_DESCR_PASIDC_INV 0x7 /* Extended Device-TLB Invalidate Descriptor */ #define DMAR_IQ_DESCR_EDTLB_INV 0x8 /* Invalidation Queue Head register */ #define DMAR_IQH_REG 0x80 #define DMAR_IQH_MASK 0x7fff0 /* Next cmd index mask */ /* Invalidation Queue Tail register */ #define DMAR_IQT_REG 0x88 #define DMAR_IQT_MASK 0x7fff0 /* Invalidation Queue Address register */ #define DMAR_IQA_REG 0x90 #define DMAR_IQA_IQA_MASK 0xfffffffffffff000 /* Invalidation Queue Base Address mask */ #define DMAR_IQA_QS_MASK 0x7 /* Queue Size in pages */ #define DMAR_IQA_QS_MAX 0x7 /* Max Queue size */ #define DMAR_IQA_QS_DEF 3 /* Invalidation Completion Status register */ #define DMAR_ICS_REG 0x9c #define DMAR_ICS_IWC 1 /* Invalidation Wait Descriptor Complete */ /* Invalidation Event Control register */ #define DMAR_IECTL_REG 0xa0 #define DMAR_IECTL_IM (1U << 31) /* Interrupt Mask */ #define DMAR_IECTL_IP (1 << 30) /* Interrupt Pending */ /* Invalidation Event Data register */ #define DMAR_IEDATA_REG 0xa4 /* Invalidation Event Address register */ #define DMAR_IEADDR_REG 0xa8 /* Invalidation Event Upper Address register */ #define DMAR_IEUADDR_REG 0xac /* Interrupt Remapping Table Address register */ #define DMAR_IRTA_REG 0xb8 #define DMAR_IRTA_EIME (1 << 11) /* Extended Interrupt Mode Enable */ #define DMAR_IRTA_S_MASK 0xf /* Size Mask */ #endif