hw/arm/bcm2836: Only provide "enabled-cpus" property to multicore SoCs
[qemu.git] / hw / i386 / amd_iommu.h
1 /*
2 * QEMU emulation of an AMD IOMMU (AMD-Vi)
3 *
4 * Copyright (C) 2011 Eduard - Gabriel Munteanu
5 * Copyright (C) 2015, 2016 David Kiarie Kahurani
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #ifndef AMD_IOMMU_H
22 #define AMD_IOMMU_H
23
24 #include "hw/pci/pci.h"
25 #include "hw/i386/x86-iommu.h"
26 #include "qom/object.h"
27
28 /* Capability registers */
29 #define AMDVI_CAPAB_BAR_LOW 0x04
30 #define AMDVI_CAPAB_BAR_HIGH 0x08
31 #define AMDVI_CAPAB_RANGE 0x0C
32 #define AMDVI_CAPAB_MISC 0x10
33
34 #define AMDVI_CAPAB_SIZE 0x18
35 #define AMDVI_CAPAB_REG_SIZE 0x04
36
37 /* Capability header data */
38 #define AMDVI_CAPAB_ID_SEC 0xf
39 #define AMDVI_CAPAB_FLAT_EXT (1 << 28)
40 #define AMDVI_CAPAB_EFR_SUP (1 << 27)
41 #define AMDVI_CAPAB_FLAG_NPCACHE (1 << 26)
42 #define AMDVI_CAPAB_FLAG_HTTUNNEL (1 << 25)
43 #define AMDVI_CAPAB_FLAG_IOTLBSUP (1 << 24)
44 #define AMDVI_CAPAB_INIT_TYPE (3 << 16)
45
46 /* No. of used MMIO registers */
47 #define AMDVI_MMIO_REGS_HIGH 7
48 #define AMDVI_MMIO_REGS_LOW 8
49
50 /* MMIO registers */
51 #define AMDVI_MMIO_DEVICE_TABLE 0x0000
52 #define AMDVI_MMIO_COMMAND_BASE 0x0008
53 #define AMDVI_MMIO_EVENT_BASE 0x0010
54 #define AMDVI_MMIO_CONTROL 0x0018
55 #define AMDVI_MMIO_EXCL_BASE 0x0020
56 #define AMDVI_MMIO_EXCL_LIMIT 0x0028
57 #define AMDVI_MMIO_EXT_FEATURES 0x0030
58 #define AMDVI_MMIO_COMMAND_HEAD 0x2000
59 #define AMDVI_MMIO_COMMAND_TAIL 0x2008
60 #define AMDVI_MMIO_EVENT_HEAD 0x2010
61 #define AMDVI_MMIO_EVENT_TAIL 0x2018
62 #define AMDVI_MMIO_STATUS 0x2020
63 #define AMDVI_MMIO_PPR_BASE 0x0038
64 #define AMDVI_MMIO_PPR_HEAD 0x2030
65 #define AMDVI_MMIO_PPR_TAIL 0x2038
66
67 #define AMDVI_MMIO_SIZE 0x4000
68
69 #define AMDVI_MMIO_DEVTAB_SIZE_MASK ((1ULL << 12) - 1)
70 #define AMDVI_MMIO_DEVTAB_BASE_MASK (((1ULL << 52) - 1) & ~ \
71 AMDVI_MMIO_DEVTAB_SIZE_MASK)
72 #define AMDVI_MMIO_DEVTAB_ENTRY_SIZE 32
73 #define AMDVI_MMIO_DEVTAB_SIZE_UNIT 4096
74
75 /* some of this are similar but just for readability */
76 #define AMDVI_MMIO_CMDBUF_SIZE_BYTE (AMDVI_MMIO_COMMAND_BASE + 7)
77 #define AMDVI_MMIO_CMDBUF_SIZE_MASK 0x0f
78 #define AMDVI_MMIO_CMDBUF_BASE_MASK AMDVI_MMIO_DEVTAB_BASE_MASK
79 #define AMDVI_MMIO_CMDBUF_HEAD_MASK (((1ULL << 19) - 1) & ~0x0f)
80 #define AMDVI_MMIO_CMDBUF_TAIL_MASK AMDVI_MMIO_EVTLOG_HEAD_MASK
81
82 #define AMDVI_MMIO_EVTLOG_SIZE_BYTE (AMDVI_MMIO_EVENT_BASE + 7)
83 #define AMDVI_MMIO_EVTLOG_SIZE_MASK AMDVI_MMIO_CMDBUF_SIZE_MASK
84 #define AMDVI_MMIO_EVTLOG_BASE_MASK AMDVI_MMIO_CMDBUF_BASE_MASK
85 #define AMDVI_MMIO_EVTLOG_HEAD_MASK (((1ULL << 19) - 1) & ~0x0f)
86 #define AMDVI_MMIO_EVTLOG_TAIL_MASK AMDVI_MMIO_EVTLOG_HEAD_MASK
87
88 #define AMDVI_MMIO_PPRLOG_SIZE_BYTE (AMDVI_MMIO_EVENT_BASE + 7)
89 #define AMDVI_MMIO_PPRLOG_HEAD_MASK AMDVI_MMIO_EVTLOG_HEAD_MASK
90 #define AMDVI_MMIO_PPRLOG_TAIL_MASK AMDVI_MMIO_EVTLOG_HEAD_MASK
91 #define AMDVI_MMIO_PPRLOG_BASE_MASK AMDVI_MMIO_EVTLOG_BASE_MASK
92 #define AMDVI_MMIO_PPRLOG_SIZE_MASK AMDVI_MMIO_EVTLOG_SIZE_MASK
93
94 #define AMDVI_MMIO_EXCL_ENABLED_MASK (1ULL << 0)
95 #define AMDVI_MMIO_EXCL_ALLOW_MASK (1ULL << 1)
96 #define AMDVI_MMIO_EXCL_LIMIT_MASK AMDVI_MMIO_DEVTAB_BASE_MASK
97 #define AMDVI_MMIO_EXCL_LIMIT_LOW 0xfff
98
99 /* mmio control register flags */
100 #define AMDVI_MMIO_CONTROL_AMDVIEN (1ULL << 0)
101 #define AMDVI_MMIO_CONTROL_HTTUNEN (1ULL << 1)
102 #define AMDVI_MMIO_CONTROL_EVENTLOGEN (1ULL << 2)
103 #define AMDVI_MMIO_CONTROL_EVENTINTEN (1ULL << 3)
104 #define AMDVI_MMIO_CONTROL_COMWAITINTEN (1ULL << 4)
105 #define AMDVI_MMIO_CONTROL_CMDBUFLEN (1ULL << 12)
106 #define AMDVI_MMIO_CONTROL_GAEN (1ULL << 17)
107
108 /* MMIO status register bits */
109 #define AMDVI_MMIO_STATUS_CMDBUF_RUN (1 << 4)
110 #define AMDVI_MMIO_STATUS_EVT_RUN (1 << 3)
111 #define AMDVI_MMIO_STATUS_COMP_INT (1 << 2)
112 #define AMDVI_MMIO_STATUS_EVT_OVF (1 << 0)
113
114 #define AMDVI_CMDBUF_ID_BYTE 0x07
115 #define AMDVI_CMDBUF_ID_RSHIFT 4
116
117 #define AMDVI_CMD_COMPLETION_WAIT 0x01
118 #define AMDVI_CMD_INVAL_DEVTAB_ENTRY 0x02
119 #define AMDVI_CMD_INVAL_AMDVI_PAGES 0x03
120 #define AMDVI_CMD_INVAL_IOTLB_PAGES 0x04
121 #define AMDVI_CMD_INVAL_INTR_TABLE 0x05
122 #define AMDVI_CMD_PREFETCH_AMDVI_PAGES 0x06
123 #define AMDVI_CMD_COMPLETE_PPR_REQUEST 0x07
124 #define AMDVI_CMD_INVAL_AMDVI_ALL 0x08
125
126 #define AMDVI_DEVTAB_ENTRY_SIZE 32
127
128 /* Device table entry bits 0:63 */
129 #define AMDVI_DEV_VALID (1ULL << 0)
130 #define AMDVI_DEV_TRANSLATION_VALID (1ULL << 1)
131 #define AMDVI_DEV_MODE_MASK 0x7
132 #define AMDVI_DEV_MODE_RSHIFT 9
133 #define AMDVI_DEV_PT_ROOT_MASK 0xffffffffff000
134 #define AMDVI_DEV_PT_ROOT_RSHIFT 12
135 #define AMDVI_DEV_PERM_SHIFT 61
136 #define AMDVI_DEV_PERM_READ (1ULL << 61)
137 #define AMDVI_DEV_PERM_WRITE (1ULL << 62)
138
139 /* Device table entry bits 64:127 */
140 #define AMDVI_DEV_DOMID_ID_MASK ((1ULL << 16) - 1)
141
142 /* Event codes and flags, as stored in the info field */
143 #define AMDVI_EVENT_ILLEGAL_DEVTAB_ENTRY (0x1U << 12)
144 #define AMDVI_EVENT_IOPF (0x2U << 12)
145 #define AMDVI_EVENT_IOPF_I (1U << 3)
146 #define AMDVI_EVENT_DEV_TAB_HW_ERROR (0x3U << 12)
147 #define AMDVI_EVENT_PAGE_TAB_HW_ERROR (0x4U << 12)
148 #define AMDVI_EVENT_ILLEGAL_COMMAND_ERROR (0x5U << 12)
149 #define AMDVI_EVENT_COMMAND_HW_ERROR (0x6U << 12)
150
151 #define AMDVI_EVENT_LEN 16
152 #define AMDVI_PERM_READ (1 << 0)
153 #define AMDVI_PERM_WRITE (1 << 1)
154
155 #define AMDVI_FEATURE_PREFETCH (1ULL << 0) /* page prefetch */
156 #define AMDVI_FEATURE_PPR (1ULL << 1) /* PPR Support */
157 #define AMDVI_FEATURE_GT (1ULL << 4) /* Guest Translation */
158 #define AMDVI_FEATURE_IA (1ULL << 6) /* inval all support */
159 #define AMDVI_FEATURE_GA (1ULL << 7) /* guest VAPIC support */
160 #define AMDVI_FEATURE_HE (1ULL << 8) /* hardware error regs */
161 #define AMDVI_FEATURE_PC (1ULL << 9) /* Perf counters */
162
163 /* reserved DTE bits */
164 #define AMDVI_DTE_LOWER_QUAD_RESERVED 0x80300000000000fc
165 #define AMDVI_DTE_MIDDLE_QUAD_RESERVED 0x0000000000000100
166 #define AMDVI_DTE_UPPER_QUAD_RESERVED 0x08f0000000000000
167
168 /* AMDVI paging mode */
169 #define AMDVI_GATS_MODE (2ULL << 12)
170 #define AMDVI_HATS_MODE (2ULL << 10)
171
172 /* IOTLB */
173 #define AMDVI_IOTLB_MAX_SIZE 1024
174 #define AMDVI_DEVID_SHIFT 36
175
176 /* extended feature support */
177 #define AMDVI_EXT_FEATURES (AMDVI_FEATURE_PREFETCH | AMDVI_FEATURE_PPR | \
178 AMDVI_FEATURE_IA | AMDVI_FEATURE_GT | AMDVI_FEATURE_HE | \
179 AMDVI_GATS_MODE | AMDVI_HATS_MODE | AMDVI_FEATURE_GA)
180
181 /* capabilities header */
182 #define AMDVI_CAPAB_FEATURES (AMDVI_CAPAB_FLAT_EXT | \
183 AMDVI_CAPAB_FLAG_NPCACHE | AMDVI_CAPAB_FLAG_IOTLBSUP \
184 | AMDVI_CAPAB_ID_SEC | AMDVI_CAPAB_INIT_TYPE | \
185 AMDVI_CAPAB_FLAG_HTTUNNEL | AMDVI_CAPAB_EFR_SUP)
186
187 /* AMDVI default address */
188 #define AMDVI_BASE_ADDR 0xfed80000
189
190 /* page management constants */
191 #define AMDVI_PAGE_SHIFT 12
192 #define AMDVI_PAGE_SIZE (1ULL << AMDVI_PAGE_SHIFT)
193
194 #define AMDVI_PAGE_SHIFT_4K 12
195 #define AMDVI_PAGE_MASK_4K (~((1ULL << AMDVI_PAGE_SHIFT_4K) - 1))
196
197 #define AMDVI_MAX_VA_ADDR (48UL << 5)
198 #define AMDVI_MAX_PH_ADDR (40UL << 8)
199 #define AMDVI_MAX_GVA_ADDR (48UL << 15)
200
201 /* Completion Wait data size */
202 #define AMDVI_COMPLETION_DATA_SIZE 8
203
204 #define AMDVI_COMMAND_SIZE 16
205 /* Completion Wait data size */
206 #define AMDVI_COMPLETION_DATA_SIZE 8
207
208 #define AMDVI_COMMAND_SIZE 16
209
210 #define AMDVI_INT_ADDR_FIRST 0xfee00000
211 #define AMDVI_INT_ADDR_LAST 0xfeefffff
212 #define AMDVI_INT_ADDR_SIZE (AMDVI_INT_ADDR_LAST - AMDVI_INT_ADDR_FIRST + 1)
213 #define AMDVI_MSI_ADDR_HI_MASK (0xffffffff00000000ULL)
214 #define AMDVI_MSI_ADDR_LO_MASK (0x00000000ffffffffULL)
215
216 /* SB IOAPIC is always on this device in AMD systems */
217 #define AMDVI_IOAPIC_SB_DEVID PCI_BUILD_BDF(0, PCI_DEVFN(0x14, 0))
218
219 /* Interrupt remapping errors */
220 #define AMDVI_IR_ERR 0x1
221 #define AMDVI_IR_GET_IRTE 0x2
222 #define AMDVI_IR_TARGET_ABORT 0x3
223
224 /* Interrupt remapping */
225 #define AMDVI_IR_REMAP_ENABLE 1ULL
226 #define AMDVI_IR_INTCTL_SHIFT 60
227 #define AMDVI_IR_INTCTL_ABORT 0
228 #define AMDVI_IR_INTCTL_PASS 1
229 #define AMDVI_IR_INTCTL_REMAP 2
230
231 #define AMDVI_IR_PHYS_ADDR_MASK (((1ULL << 45) - 1) << 6)
232
233 /* MSI data 10:0 bits (section 2.2.5.1 Fig 14) */
234 #define AMDVI_IRTE_OFFSET 0x7ff
235
236 /* Delivery mode of MSI data (same as IOAPIC deilver mode encoding) */
237 #define AMDVI_IOAPIC_INT_TYPE_FIXED 0x0
238 #define AMDVI_IOAPIC_INT_TYPE_ARBITRATED 0x1
239 #define AMDVI_IOAPIC_INT_TYPE_SMI 0x2
240 #define AMDVI_IOAPIC_INT_TYPE_NMI 0x4
241 #define AMDVI_IOAPIC_INT_TYPE_INIT 0x5
242 #define AMDVI_IOAPIC_INT_TYPE_EINT 0x7
243
244 /* Pass through interrupt */
245 #define AMDVI_DEV_INT_PASS_MASK (1ULL << 56)
246 #define AMDVI_DEV_EINT_PASS_MASK (1ULL << 57)
247 #define AMDVI_DEV_NMI_PASS_MASK (1ULL << 58)
248 #define AMDVI_DEV_LINT0_PASS_MASK (1ULL << 62)
249 #define AMDVI_DEV_LINT1_PASS_MASK (1ULL << 63)
250
251 /* Interrupt remapping table fields (Guest VAPIC not enabled) */
252 union irte {
253 uint32_t val;
254 struct {
255 uint32_t valid:1,
256 no_fault:1,
257 int_type:3,
258 rq_eoi:1,
259 dm:1,
260 guest_mode:1,
261 destination:8,
262 vector:8,
263 rsvd:8;
264 } fields;
265 };
266
267 /* Interrupt remapping table fields (Guest VAPIC is enabled) */
268 union irte_ga_lo {
269 uint64_t val;
270
271 /* For int remapping */
272 struct {
273 uint64_t valid:1,
274 no_fault:1,
275 /* ------ */
276 int_type:3,
277 rq_eoi:1,
278 dm:1,
279 /* ------ */
280 guest_mode:1,
281 destination:8,
282 rsvd_1:48;
283 } fields_remap;
284 };
285
286 union irte_ga_hi {
287 uint64_t val;
288 struct {
289 uint64_t vector:8,
290 rsvd_2:56;
291 } fields;
292 };
293
294 struct irte_ga {
295 union irte_ga_lo lo;
296 union irte_ga_hi hi;
297 };
298
299 #define TYPE_AMD_IOMMU_DEVICE "amd-iommu"
300 OBJECT_DECLARE_SIMPLE_TYPE(AMDVIState, AMD_IOMMU_DEVICE)
301
302 #define TYPE_AMD_IOMMU_PCI "AMDVI-PCI"
303
304 #define TYPE_AMD_IOMMU_MEMORY_REGION "amd-iommu-iommu-memory-region"
305
306 typedef struct AMDVIAddressSpace AMDVIAddressSpace;
307
308 /* functions to steal PCI config space */
309 typedef struct AMDVIPCIState {
310 PCIDevice dev; /* The PCI device itself */
311 } AMDVIPCIState;
312
313 struct AMDVIState {
314 X86IOMMUState iommu; /* IOMMU bus device */
315 AMDVIPCIState pci; /* IOMMU PCI device */
316
317 uint32_t version;
318 uint32_t capab_offset; /* capability offset pointer */
319
320 uint64_t mmio_addr;
321
322 uint32_t devid; /* auto-assigned devid */
323
324 bool enabled; /* IOMMU enabled */
325 bool ats_enabled; /* address translation enabled */
326 bool cmdbuf_enabled; /* command buffer enabled */
327 bool evtlog_enabled; /* event log enabled */
328 bool excl_enabled;
329
330 hwaddr devtab; /* base address device table */
331 size_t devtab_len; /* device table length */
332
333 hwaddr cmdbuf; /* command buffer base address */
334 uint64_t cmdbuf_len; /* command buffer length */
335 uint32_t cmdbuf_head; /* current IOMMU read position */
336 uint32_t cmdbuf_tail; /* next Software write position */
337 bool completion_wait_intr;
338
339 hwaddr evtlog; /* base address event log */
340 bool evtlog_intr;
341 uint32_t evtlog_len; /* event log length */
342 uint32_t evtlog_head; /* current IOMMU write position */
343 uint32_t evtlog_tail; /* current Software read position */
344
345 /* unused for now */
346 hwaddr excl_base; /* base DVA - IOMMU exclusion range */
347 hwaddr excl_limit; /* limit of IOMMU exclusion range */
348 bool excl_allow; /* translate accesses to the exclusion range */
349 bool excl_enable; /* exclusion range enabled */
350
351 hwaddr ppr_log; /* base address ppr log */
352 uint32_t pprlog_len; /* ppr log len */
353 uint32_t pprlog_head; /* ppr log head */
354 uint32_t pprlog_tail; /* ppr log tail */
355
356 MemoryRegion mmio; /* MMIO region */
357 uint8_t mmior[AMDVI_MMIO_SIZE]; /* read/write MMIO */
358 uint8_t w1cmask[AMDVI_MMIO_SIZE]; /* read/write 1 clear mask */
359 uint8_t romask[AMDVI_MMIO_SIZE]; /* MMIO read/only mask */
360 bool mmio_enabled;
361
362 /* for each served device */
363 AMDVIAddressSpace **address_spaces[PCI_BUS_MAX];
364
365 /* IOTLB */
366 GHashTable *iotlb;
367
368 /* Interrupt remapping */
369 bool ga_enabled;
370 };
371
372 #endif