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Kevin O'Connor84ad59a2008-07-04 05:47:26 -04001// Support for generating ACPI tables (on emulators)
Kevin O'Connor276d4a92008-06-11 22:47:01 -04002//
Kevin O'Connor2929c352009-07-25 13:48:27 -04003// Copyright (C) 2008,2009 Kevin O'Connor <kevin@koconnor.net>
Kevin O'Connor276d4a92008-06-11 22:47:01 -04004// Copyright (C) 2006 Fabrice Bellard
5//
Kevin O'Connorb1b7c2a2009-01-15 20:52:58 -05006// This file may be distributed under the terms of the GNU LGPLv3 license.
Kevin O'Connor276d4a92008-06-11 22:47:01 -04007
8#include "acpi.h" // struct rsdp_descriptor
9#include "util.h" // memcpy
Kevin O'Connor276d4a92008-06-11 22:47:01 -040010#include "pci.h" // pci_find_device
Kevin O'Connor9521e262008-07-04 13:04:29 -040011#include "biosvar.h" // GET_EBDA
Kevin O'Connor2ed2f582008-11-08 15:53:36 -050012#include "pci_ids.h" // PCI_VENDOR_ID_INTEL
13#include "pci_regs.h" // PCI_INTERRUPT_LINE
Kevin O'Connorcc6dc462009-10-08 21:18:41 -040014#include "paravirt.h"
Kevin O'Connor276d4a92008-06-11 22:47:01 -040015
16/****************************************************/
17/* ACPI tables init */
18
19/* Table structure from Linux kernel (the ACPI tables are under the
20 BSD license) */
21
22#define ACPI_TABLE_HEADER_DEF /* ACPI common table header */ \
Kevin O'Connord10e4442009-03-01 12:41:20 -050023 u32 signature; /* ACPI signature (4 ASCII characters) */ \
24 u32 length; /* Length of table, in bytes, including header */ \
25 u8 revision; /* ACPI Specification minor version # */ \
26 u8 checksum; /* To make sum of entire table == 0 */ \
27 u8 oem_id [6]; /* OEM identification */ \
28 u8 oem_table_id [8]; /* OEM table identification */ \
29 u32 oem_revision; /* OEM revision number */ \
30 u8 asl_compiler_id [4]; /* ASL compiler vendor ID */ \
31 u32 asl_compiler_revision; /* ASL compiler revision number */
Kevin O'Connor276d4a92008-06-11 22:47:01 -040032
33
34struct acpi_table_header /* ACPI common table header */
35{
Kevin O'Connord10e4442009-03-01 12:41:20 -050036 ACPI_TABLE_HEADER_DEF
Kevin O'Connore97ca7b2009-06-21 09:10:28 -040037} PACKED;
Kevin O'Connor276d4a92008-06-11 22:47:01 -040038
39/*
40 * ACPI 1.0 Root System Description Table (RSDT)
41 */
Kevin O'Connor9967ab72008-12-18 21:57:33 -050042#define RSDT_SIGNATURE 0x54445352 // RSDT
Kevin O'Connor276d4a92008-06-11 22:47:01 -040043struct rsdt_descriptor_rev1
44{
Kevin O'Connord10e4442009-03-01 12:41:20 -050045 ACPI_TABLE_HEADER_DEF /* ACPI common table header */
Kevin O'Connora9242a22009-10-07 19:42:07 -040046 u32 table_offset_entry[0]; /* Array of pointers to other */
Kevin O'Connord10e4442009-03-01 12:41:20 -050047 /* ACPI tables */
Kevin O'Connore97ca7b2009-06-21 09:10:28 -040048} PACKED;
Kevin O'Connor276d4a92008-06-11 22:47:01 -040049
50/*
51 * ACPI 1.0 Firmware ACPI Control Structure (FACS)
52 */
Kevin O'Connor9967ab72008-12-18 21:57:33 -050053#define FACS_SIGNATURE 0x53434146 // FACS
Kevin O'Connor276d4a92008-06-11 22:47:01 -040054struct facs_descriptor_rev1
55{
Kevin O'Connord10e4442009-03-01 12:41:20 -050056 u32 signature; /* ACPI Signature */
57 u32 length; /* Length of structure, in bytes */
58 u32 hardware_signature; /* Hardware configuration signature */
59 u32 firmware_waking_vector; /* ACPI OS waking vector */
60 u32 global_lock; /* Global Lock */
61 u32 S4bios_f : 1; /* Indicates if S4BIOS support is present */
62 u32 reserved1 : 31; /* Must be 0 */
63 u8 resverved3 [40]; /* Reserved - must be zero */
Kevin O'Connore97ca7b2009-06-21 09:10:28 -040064} PACKED;
Kevin O'Connor276d4a92008-06-11 22:47:01 -040065
66
67/*
68 * ACPI 1.0 Fixed ACPI Description Table (FADT)
69 */
Kevin O'Connor9967ab72008-12-18 21:57:33 -050070#define FACP_SIGNATURE 0x50434146 // FACP
Kevin O'Connor276d4a92008-06-11 22:47:01 -040071struct fadt_descriptor_rev1
72{
Kevin O'Connord10e4442009-03-01 12:41:20 -050073 ACPI_TABLE_HEADER_DEF /* ACPI common table header */
74 u32 firmware_ctrl; /* Physical address of FACS */
75 u32 dsdt; /* Physical address of DSDT */
76 u8 model; /* System Interrupt Model */
77 u8 reserved1; /* Reserved */
78 u16 sci_int; /* System vector of SCI interrupt */
79 u32 smi_cmd; /* Port address of SMI command port */
80 u8 acpi_enable; /* Value to write to smi_cmd to enable ACPI */
81 u8 acpi_disable; /* Value to write to smi_cmd to disable ACPI */
82 u8 S4bios_req; /* Value to write to SMI CMD to enter S4BIOS state */
83 u8 reserved2; /* Reserved - must be zero */
84 u32 pm1a_evt_blk; /* Port address of Power Mgt 1a acpi_event Reg Blk */
85 u32 pm1b_evt_blk; /* Port address of Power Mgt 1b acpi_event Reg Blk */
86 u32 pm1a_cnt_blk; /* Port address of Power Mgt 1a Control Reg Blk */
87 u32 pm1b_cnt_blk; /* Port address of Power Mgt 1b Control Reg Blk */
88 u32 pm2_cnt_blk; /* Port address of Power Mgt 2 Control Reg Blk */
89 u32 pm_tmr_blk; /* Port address of Power Mgt Timer Ctrl Reg Blk */
90 u32 gpe0_blk; /* Port addr of General Purpose acpi_event 0 Reg Blk */
91 u32 gpe1_blk; /* Port addr of General Purpose acpi_event 1 Reg Blk */
92 u8 pm1_evt_len; /* Byte length of ports at pm1_x_evt_blk */
93 u8 pm1_cnt_len; /* Byte length of ports at pm1_x_cnt_blk */
94 u8 pm2_cnt_len; /* Byte Length of ports at pm2_cnt_blk */
95 u8 pm_tmr_len; /* Byte Length of ports at pm_tm_blk */
96 u8 gpe0_blk_len; /* Byte Length of ports at gpe0_blk */
97 u8 gpe1_blk_len; /* Byte Length of ports at gpe1_blk */
98 u8 gpe1_base; /* Offset in gpe model where gpe1 events start */
99 u8 reserved3; /* Reserved */
100 u16 plvl2_lat; /* Worst case HW latency to enter/exit C2 state */
101 u16 plvl3_lat; /* Worst case HW latency to enter/exit C3 state */
102 u16 flush_size; /* Size of area read to flush caches */
103 u16 flush_stride; /* Stride used in flushing caches */
104 u8 duty_offset; /* Bit location of duty cycle field in p_cnt reg */
105 u8 duty_width; /* Bit width of duty cycle field in p_cnt reg */
106 u8 day_alrm; /* Index to day-of-month alarm in RTC CMOS RAM */
107 u8 mon_alrm; /* Index to month-of-year alarm in RTC CMOS RAM */
108 u8 century; /* Index to century in RTC CMOS RAM */
109 u8 reserved4; /* Reserved */
110 u8 reserved4a; /* Reserved */
111 u8 reserved4b; /* Reserved */
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400112#if 0
Kevin O'Connord10e4442009-03-01 12:41:20 -0500113 u32 wb_invd : 1; /* The wbinvd instruction works properly */
114 u32 wb_invd_flush : 1; /* The wbinvd flushes but does not invalidate */
115 u32 proc_c1 : 1; /* All processors support C1 state */
116 u32 plvl2_up : 1; /* C2 state works on MP system */
117 u32 pwr_button : 1; /* Power button is handled as a generic feature */
118 u32 sleep_button : 1; /* Sleep button is handled as a generic feature, or not present */
119 u32 fixed_rTC : 1; /* RTC wakeup stat not in fixed register space */
120 u32 rtcs4 : 1; /* RTC wakeup stat not possible from S4 */
121 u32 tmr_val_ext : 1; /* The tmr_val width is 32 bits (0 = 24 bits) */
122 u32 reserved5 : 23; /* Reserved - must be zero */
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400123#else
Kevin O'Connord10e4442009-03-01 12:41:20 -0500124 u32 flags;
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400125#endif
Kevin O'Connore97ca7b2009-06-21 09:10:28 -0400126} PACKED;
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400127
128/*
129 * MADT values and structures
130 */
131
132/* Values for MADT PCATCompat */
133
134#define DUAL_PIC 0
135#define MULTIPLE_APIC 1
136
137
138/* Master MADT */
139
Kevin O'Connor9967ab72008-12-18 21:57:33 -0500140#define APIC_SIGNATURE 0x43495041 // APIC
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400141struct multiple_apic_table
142{
Kevin O'Connord10e4442009-03-01 12:41:20 -0500143 ACPI_TABLE_HEADER_DEF /* ACPI common table header */
144 u32 local_apic_address; /* Physical address of local APIC */
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400145#if 0
Kevin O'Connord10e4442009-03-01 12:41:20 -0500146 u32 PCATcompat : 1; /* A one indicates system also has dual 8259s */
147 u32 reserved1 : 31;
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400148#else
Kevin O'Connord10e4442009-03-01 12:41:20 -0500149 u32 flags;
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400150#endif
Kevin O'Connore97ca7b2009-06-21 09:10:28 -0400151} PACKED;
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400152
153
Kevin O'Connor590e5542009-10-08 22:09:02 -0400154/* Values for Type in APIC sub-headers */
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400155
156#define APIC_PROCESSOR 0
157#define APIC_IO 1
158#define APIC_XRUPT_OVERRIDE 2
159#define APIC_NMI 3
160#define APIC_LOCAL_NMI 4
161#define APIC_ADDRESS_OVERRIDE 5
162#define APIC_IO_SAPIC 6
163#define APIC_LOCAL_SAPIC 7
164#define APIC_XRUPT_SOURCE 8
165#define APIC_RESERVED 9 /* 9 and greater are reserved */
166
167/*
168 * MADT sub-structures (Follow MULTIPLE_APIC_DESCRIPTION_TABLE)
169 */
Kevin O'Connor590e5542009-10-08 22:09:02 -0400170#define ACPI_SUB_HEADER_DEF /* Common ACPI sub-structure header */\
Kevin O'Connord10e4442009-03-01 12:41:20 -0500171 u8 type; \
172 u8 length;
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400173
174/* Sub-structures for MADT */
175
176struct madt_processor_apic
177{
Kevin O'Connor590e5542009-10-08 22:09:02 -0400178 ACPI_SUB_HEADER_DEF
Kevin O'Connord10e4442009-03-01 12:41:20 -0500179 u8 processor_id; /* ACPI processor id */
180 u8 local_apic_id; /* Processor's local APIC id */
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400181#if 0
Kevin O'Connord10e4442009-03-01 12:41:20 -0500182 u32 processor_enabled: 1; /* Processor is usable if set */
183 u32 reserved2 : 31; /* Reserved, must be zero */
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400184#else
Kevin O'Connord10e4442009-03-01 12:41:20 -0500185 u32 flags;
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400186#endif
Kevin O'Connore97ca7b2009-06-21 09:10:28 -0400187} PACKED;
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400188
189struct madt_io_apic
190{
Kevin O'Connor590e5542009-10-08 22:09:02 -0400191 ACPI_SUB_HEADER_DEF
Kevin O'Connord10e4442009-03-01 12:41:20 -0500192 u8 io_apic_id; /* I/O APIC ID */
193 u8 reserved; /* Reserved - must be zero */
194 u32 address; /* APIC physical address */
195 u32 interrupt; /* Global system interrupt where INTI
196 * lines start */
Kevin O'Connore97ca7b2009-06-21 09:10:28 -0400197} PACKED;
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400198
Kevin O'Connor7061eb62009-01-04 21:48:22 -0500199/* IRQs 5,9,10,11 */
200#define PCI_ISA_IRQ_MASK 0x0e20
Kevin O'Connor7061eb62009-01-04 21:48:22 -0500201
202struct madt_intsrcovr {
Kevin O'Connor590e5542009-10-08 22:09:02 -0400203 ACPI_SUB_HEADER_DEF
Kevin O'Connor7061eb62009-01-04 21:48:22 -0500204 u8 bus;
205 u8 source;
206 u32 gsi;
207 u16 flags;
208} PACKED;
209
Kevin O'Connorf4343772009-10-08 22:05:21 -0400210/*
211 * ACPI 2.0 Generic Address Space definition.
212 */
213struct acpi_20_generic_address {
214 u8 address_space_id;
215 u8 register_bit_width;
216 u8 register_bit_offset;
217 u8 reserved;
218 u64 address;
219} PACKED;
220
221/*
222 * HPET Description Table
223 */
224struct acpi_20_hpet {
225 ACPI_TABLE_HEADER_DEF /* ACPI common table header */
226 u32 timer_block_id;
227 struct acpi_20_generic_address addr;
228 u8 hpet_number;
229 u16 min_tick;
230 u8 page_protect;
231} PACKED;
232#define ACPI_HPET_ADDRESS 0xFED00000UL
233
Kevin O'Connor590e5542009-10-08 22:09:02 -0400234/*
235 * SRAT (NUMA topology description) table
236 */
237
238#define SRAT_PROCESSOR 0
239#define SRAT_MEMORY 1
240
241struct system_resource_affinity_table
242{
243 ACPI_TABLE_HEADER_DEF
244 u32 reserved1;
245 u32 reserved2[2];
246} PACKED;
247
248struct srat_processor_affinity
249{
250 ACPI_SUB_HEADER_DEF
251 u8 proximity_lo;
252 u8 local_apic_id;
253 u32 flags;
254 u8 local_sapic_eid;
255 u8 proximity_hi[3];
256 u32 reserved;
257} PACKED;
258
259struct srat_memory_affinity
260{
261 ACPI_SUB_HEADER_DEF
262 u8 proximity[4];
263 u16 reserved1;
264 u32 base_addr_low,base_addr_high;
265 u32 length_low,length_high;
266 u32 reserved2;
267 u32 flags;
268 u32 reserved3[2];
269} PACKED;
270
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400271#include "acpi-dsdt.hex"
272
273static inline u16 cpu_to_le16(u16 x)
274{
275 return x;
276}
277
278static inline u32 cpu_to_le32(u32 x)
279{
280 return x;
281}
282
Kevin O'Connor2929c352009-07-25 13:48:27 -0400283static void
Kevin O'Connora9242a22009-10-07 19:42:07 -0400284build_header(struct acpi_table_header *h, u32 sig, int len, u8 rev)
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400285{
Kevin O'Connor9967ab72008-12-18 21:57:33 -0500286 h->signature = sig;
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400287 h->length = cpu_to_le32(len);
288 h->revision = rev;
Kevin O'Connor6cb8ba92008-08-17 11:03:24 -0400289 memcpy(h->oem_id, CONFIG_APPNAME6, 6);
290 memcpy(h->oem_table_id, CONFIG_APPNAME4, 4);
291 memcpy(h->asl_compiler_id, CONFIG_APPNAME4, 4);
Kevin O'Connor9967ab72008-12-18 21:57:33 -0500292 memcpy(h->oem_table_id + 4, (void*)&sig, 4);
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400293 h->oem_revision = cpu_to_le32(1);
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400294 h->asl_compiler_revision = cpu_to_le32(1);
Kevin O'Connor523e5a92009-07-04 13:46:33 -0400295 h->checksum -= checksum(h, len);
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400296}
297
Kevin O'Connora9242a22009-10-07 19:42:07 -0400298static void*
299build_fadt(int bdf)
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400300{
Kevin O'Connor2929c352009-07-25 13:48:27 -0400301 struct fadt_descriptor_rev1 *fadt = malloc_high(sizeof(*fadt));
Kevin O'Connor415d4292009-08-30 19:19:31 -0400302 struct facs_descriptor_rev1 *facs = memalign_high(64, sizeof(*facs));
Kevin O'Connor2929c352009-07-25 13:48:27 -0400303 void *dsdt = malloc_high(sizeof(AmlCode));
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400304
Kevin O'Connor2929c352009-07-25 13:48:27 -0400305 if (!fadt || !facs || !dsdt) {
306 dprintf(1, "Not enough memory for fadt!\n");
Kevin O'Connora9242a22009-10-07 19:42:07 -0400307 return NULL;
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400308 }
309
Kevin O'Connor2929c352009-07-25 13:48:27 -0400310 /* FACS */
Kevin O'Connor2929c352009-07-25 13:48:27 -0400311 memset(facs, 0, sizeof(*facs));
312 facs->signature = FACS_SIGNATURE;
313 facs->length = cpu_to_le32(sizeof(*facs));
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400314
Kevin O'Connor2929c352009-07-25 13:48:27 -0400315 /* DSDT */
316 memcpy(dsdt, AmlCode, sizeof(AmlCode));
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400317
318 /* FADT */
319 memset(fadt, 0, sizeof(*fadt));
Kevin O'Connor2929c352009-07-25 13:48:27 -0400320 fadt->firmware_ctrl = cpu_to_le32((u32)facs);
321 fadt->dsdt = cpu_to_le32((u32)dsdt);
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400322 fadt->model = 1;
323 fadt->reserved1 = 0;
Kevin O'Connorbe19cdc2008-11-09 15:33:47 -0500324 int pm_sci_int = pci_config_readb(bdf, PCI_INTERRUPT_LINE);
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400325 fadt->sci_int = cpu_to_le16(pm_sci_int);
Kevin O'Connore682cbc2008-12-06 23:11:56 -0500326 fadt->smi_cmd = cpu_to_le32(PORT_SMI_CMD);
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400327 fadt->acpi_enable = 0xf1;
328 fadt->acpi_disable = 0xf0;
Kevin O'Connore682cbc2008-12-06 23:11:56 -0500329 fadt->pm1a_evt_blk = cpu_to_le32(PORT_ACPI_PM_BASE);
330 fadt->pm1a_cnt_blk = cpu_to_le32(PORT_ACPI_PM_BASE + 0x04);
331 fadt->pm_tmr_blk = cpu_to_le32(PORT_ACPI_PM_BASE + 0x08);
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400332 fadt->pm1_evt_len = 4;
333 fadt->pm1_cnt_len = 2;
334 fadt->pm_tmr_len = 4;
335 fadt->plvl2_lat = cpu_to_le16(0xfff); // C2 state not supported
336 fadt->plvl3_lat = cpu_to_le16(0xfff); // C3 state not supported
Kevin O'Connor12a490b2009-10-08 22:03:28 -0400337 fadt->gpe0_blk = cpu_to_le32(0xafe0);
338 fadt->gpe0_blk_len = 4;
Kevin O'Connor81e73832009-10-12 10:21:48 -0400339 /* WBINVD + PROC_C1 + SLP_BUTTON + FIX_RTC */
340 fadt->flags = cpu_to_le32((1 << 0) | (1 << 2) | (1 << 5) | (1 << 6));
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400341
Kevin O'Connora9242a22009-10-07 19:42:07 -0400342 build_header((void*)fadt, FACP_SIGNATURE, sizeof(*fadt), 1);
343
344 return fadt;
Kevin O'Connor2929c352009-07-25 13:48:27 -0400345}
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400346
Kevin O'Connora9242a22009-10-07 19:42:07 -0400347static void*
348build_madt(void)
Kevin O'Connor2929c352009-07-25 13:48:27 -0400349{
Kevin O'Connor2929c352009-07-25 13:48:27 -0400350 int madt_size = (sizeof(struct multiple_apic_table)
Kevin O'Connora26df9b2009-10-09 09:42:11 -0400351 + sizeof(struct madt_processor_apic) * MaxCountCPUs
Kevin O'Connor2929c352009-07-25 13:48:27 -0400352 + sizeof(struct madt_io_apic)
353 + sizeof(struct madt_intsrcovr) * 16);
354 struct multiple_apic_table *madt = malloc_high(madt_size);
355 if (!madt) {
356 dprintf(1, "Not enough memory for madt!\n");
Kevin O'Connora9242a22009-10-07 19:42:07 -0400357 return NULL;
Kevin O'Connor2929c352009-07-25 13:48:27 -0400358 }
Kevin O'Connor7061eb62009-01-04 21:48:22 -0500359 memset(madt, 0, madt_size);
360 madt->local_apic_address = cpu_to_le32(BUILD_APIC_ADDR);
361 madt->flags = cpu_to_le32(1);
Kevin O'Connor2929c352009-07-25 13:48:27 -0400362 struct madt_processor_apic *apic = (void*)&madt[1];
363 int i;
Kevin O'Connora26df9b2009-10-09 09:42:11 -0400364 for (i=0; i<MaxCountCPUs; i++) {
Kevin O'Connor7061eb62009-01-04 21:48:22 -0500365 apic->type = APIC_PROCESSOR;
366 apic->length = sizeof(*apic);
367 apic->processor_id = i;
368 apic->local_apic_id = i;
Kevin O'Connora26df9b2009-10-09 09:42:11 -0400369 if (i < CountCPUs)
370 apic->flags = cpu_to_le32(1);
371 else
372 apic->flags = cpu_to_le32(0);
Kevin O'Connor7061eb62009-01-04 21:48:22 -0500373 apic++;
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400374 }
Kevin O'Connor2929c352009-07-25 13:48:27 -0400375 struct madt_io_apic *io_apic = (void*)apic;
Kevin O'Connor7061eb62009-01-04 21:48:22 -0500376 io_apic->type = APIC_IO;
377 io_apic->length = sizeof(*io_apic);
Kevin O'Connora26df9b2009-10-09 09:42:11 -0400378 io_apic->io_apic_id = CountCPUs;
Kevin O'Connor7061eb62009-01-04 21:48:22 -0500379 io_apic->address = cpu_to_le32(BUILD_IOAPIC_ADDR);
380 io_apic->interrupt = cpu_to_le32(0);
381
Kevin O'Connord10e4442009-03-01 12:41:20 -0500382 struct madt_intsrcovr *intsrcovr = (void*)&io_apic[1];
Kevin O'Connor4d2b6192009-10-08 21:37:21 -0400383 if (qemu_cfg_irq0_override()) {
Kevin O'Connorb64db302009-07-29 19:20:03 -0400384 memset(intsrcovr, 0, sizeof(*intsrcovr));
385 intsrcovr->type = APIC_XRUPT_OVERRIDE;
386 intsrcovr->length = sizeof(*intsrcovr);
387 intsrcovr->source = 0;
388 intsrcovr->gsi = 2;
389 intsrcovr->flags = 0; /* conforms to bus specifications */
390 intsrcovr++;
391 }
392 for (i = 1; i < 16; i++) {
Kevin O'Connord10e4442009-03-01 12:41:20 -0500393 if (!(PCI_ISA_IRQ_MASK & (1 << i)))
Kevin O'Connor7061eb62009-01-04 21:48:22 -0500394 /* No need for a INT source override structure. */
395 continue;
Kevin O'Connord10e4442009-03-01 12:41:20 -0500396 memset(intsrcovr, 0, sizeof(*intsrcovr));
397 intsrcovr->type = APIC_XRUPT_OVERRIDE;
398 intsrcovr->length = sizeof(*intsrcovr);
399 intsrcovr->source = i;
400 intsrcovr->gsi = i;
401 intsrcovr->flags = 0xd; /* active high, level triggered */
Kevin O'Connor7061eb62009-01-04 21:48:22 -0500402 intsrcovr++;
Kevin O'Connor7061eb62009-01-04 21:48:22 -0500403 }
404
Kevin O'Connora9242a22009-10-07 19:42:07 -0400405 build_header((void*)madt, APIC_SIGNATURE, (void*)intsrcovr - (void*)madt, 1);
406 return madt;
Kevin O'Connor2929c352009-07-25 13:48:27 -0400407}
408
409#define SSDT_SIGNATURE 0x54445353 // SSDT
Kevin O'Connora9242a22009-10-07 19:42:07 -0400410static void*
411build_ssdt(void)
Kevin O'Connor2929c352009-07-25 13:48:27 -0400412{
Kevin O'Connora26df9b2009-10-09 09:42:11 -0400413 int acpi_cpus = MaxCountCPUs > 0xff ? 0xff : MaxCountCPUs;
Kevin O'Connor2929c352009-07-25 13:48:27 -0400414 // calculate the length of processor block and scope block
415 // excluding PkgLength
416 int cpu_length = 13 * acpi_cpus + 4;
417
418 int length = sizeof(struct acpi_table_header) + 3 + cpu_length;
419 u8 *ssdt = malloc_high(length);
420 if (! ssdt) {
421 dprintf(1, "No space for ssdt!\n");
Kevin O'Connora9242a22009-10-07 19:42:07 -0400422 return NULL;
Kevin O'Connor2929c352009-07-25 13:48:27 -0400423 }
424
425 u8 *ssdt_ptr = ssdt;
426 ssdt_ptr[9] = 0; // checksum;
427 ssdt_ptr += sizeof(struct acpi_table_header);
428
429 // build processor scope header
430 *(ssdt_ptr++) = 0x10; // ScopeOp
431 if (cpu_length <= 0x3e) {
Magnus Christensson3012af12009-11-25 16:26:58 +0100432 /* Handle 1-4 CPUs with one byte encoding */
Kevin O'Connor2929c352009-07-25 13:48:27 -0400433 *(ssdt_ptr++) = cpu_length + 1;
434 } else {
Magnus Christensson3012af12009-11-25 16:26:58 +0100435 /* Handle 5-314 CPUs with two byte encoding */
436 *(ssdt_ptr++) = 0x40 | ((cpu_length + 2) & 0xf);
437 *(ssdt_ptr++) = (cpu_length + 2) >> 4;
Kevin O'Connor2929c352009-07-25 13:48:27 -0400438 }
439 *(ssdt_ptr++) = '_'; // Name
440 *(ssdt_ptr++) = 'P';
441 *(ssdt_ptr++) = 'R';
442 *(ssdt_ptr++) = '_';
443
444 // build object for each processor
445 int i;
446 for (i=0; i<acpi_cpus; i++) {
447 *(ssdt_ptr++) = 0x5B; // ProcessorOp
448 *(ssdt_ptr++) = 0x83;
449 *(ssdt_ptr++) = 0x0B; // Length
450 *(ssdt_ptr++) = 'C'; // Name (CPUxx)
451 *(ssdt_ptr++) = 'P';
452 if ((i & 0xf0) != 0)
453 *(ssdt_ptr++) = (i >> 4) < 0xa ? (i >> 4) + '0' : (i >> 4) + 'A' - 0xa;
454 else
455 *(ssdt_ptr++) = 'U';
456 *(ssdt_ptr++) = (i & 0xf) < 0xa ? (i & 0xf) + '0' : (i & 0xf) + 'A' - 0xa;
457 *(ssdt_ptr++) = i;
458 *(ssdt_ptr++) = 0x10; // Processor block address
459 *(ssdt_ptr++) = 0xb0;
460 *(ssdt_ptr++) = 0;
461 *(ssdt_ptr++) = 0;
462 *(ssdt_ptr++) = 6; // Processor block length
463 }
464
Kevin O'Connora9242a22009-10-07 19:42:07 -0400465 build_header((void*)ssdt, SSDT_SIGNATURE, ssdt_ptr - ssdt, 1);
466
467 return ssdt;
Kevin O'Connor2929c352009-07-25 13:48:27 -0400468}
469
Kevin O'Connorf4343772009-10-08 22:05:21 -0400470#define HPET_SIGNATURE 0x54455048 //HPET
471static void*
472build_hpet(void)
473{
474 struct acpi_20_hpet *hpet = malloc_high(sizeof(*hpet));
475 if (!hpet) {
476 dprintf(1, "Not enough memory for hpet!\n");
477 return NULL;
478 }
479
480 memset(hpet, 0, sizeof(*hpet));
481 /* Note timer_block_id value must be kept in sync with value advertised by
482 * emulated hpet
483 */
484 hpet->timer_block_id = cpu_to_le32(0x8086a201);
485 hpet->addr.address = cpu_to_le32(ACPI_HPET_ADDRESS);
486 build_header((void*)hpet, HPET_SIGNATURE, sizeof(*hpet), 1);
487
488 return hpet;
489}
490
Kevin O'Connor590e5542009-10-08 22:09:02 -0400491static void
492acpi_build_srat_memory(struct srat_memory_affinity *numamem,
493 u64 base, u64 len, int node, int enabled)
494{
495 numamem->type = SRAT_MEMORY;
496 numamem->length = sizeof(*numamem);
497 memset (numamem->proximity, 0 ,4);
498 numamem->proximity[0] = node;
499 numamem->flags = cpu_to_le32(!!enabled);
500 numamem->base_addr_low = base & 0xFFFFFFFF;
501 numamem->base_addr_high = base >> 32;
502 numamem->length_low = len & 0xFFFFFFFF;
503 numamem->length_high = len >> 32;
504}
505
506#define SRAT_SIGNATURE 0x54415253 //HPET
507static void *
508build_srat(void)
509{
510 int nb_numa_nodes = qemu_cfg_get_numa_nodes();
511
512 if (nb_numa_nodes == 0)
513 return NULL;
514
Kevin O'Connora26df9b2009-10-09 09:42:11 -0400515 u64 *numadata = malloc_tmphigh(sizeof(u64) * (MaxCountCPUs + nb_numa_nodes));
Kevin O'Connor590e5542009-10-08 22:09:02 -0400516 if (!numadata) {
517 dprintf(1, "Not enough memory for read numa data from VM!\n");
518 return NULL;
519 }
520
Kevin O'Connora26df9b2009-10-09 09:42:11 -0400521 qemu_cfg_get_numa_data(numadata, MaxCountCPUs + nb_numa_nodes);
Kevin O'Connor590e5542009-10-08 22:09:02 -0400522
523 struct system_resource_affinity_table *srat;
524 int srat_size = sizeof(*srat) +
Kevin O'Connora26df9b2009-10-09 09:42:11 -0400525 sizeof(struct srat_processor_affinity) * MaxCountCPUs +
Kevin O'Connor590e5542009-10-08 22:09:02 -0400526 sizeof(struct srat_memory_affinity) * (nb_numa_nodes + 2);
527
528 srat = malloc_high(srat_size);
529 if (!srat) {
530 dprintf(1, "Not enough memory for srat table!\n");
531 return NULL;
532 }
533
534 memset(srat, 0, srat_size);
535 srat->reserved1=1;
536 struct srat_processor_affinity *core = (void*)(srat + 1);
537 int i;
538 u64 curnode;
539
Kevin O'Connora26df9b2009-10-09 09:42:11 -0400540 for (i = 0; i < MaxCountCPUs; ++i) {
Kevin O'Connor590e5542009-10-08 22:09:02 -0400541 core->type = SRAT_PROCESSOR;
542 core->length = sizeof(*core);
543 core->local_apic_id = i;
544 curnode = *numadata++;
545 core->proximity_lo = curnode;
546 memset(core->proximity_hi, 0, 3);
547 core->local_sapic_eid = 0;
548 if (i < CountCPUs)
549 core->flags = cpu_to_le32(1);
550 else
551 core->flags = 0;
552 core++;
553 }
554
555
556 /* the memory map is a bit tricky, it contains at least one hole
557 * from 640k-1M and possibly another one from 3.5G-4G.
558 */
559 struct srat_memory_affinity *numamem = (void*)core;
560 int slots = 0;
561 u64 mem_len, mem_base, next_base = 0;
562
563 acpi_build_srat_memory(numamem, 0, 640*1024, 0, 1);
564 next_base = 1024 * 1024;
565 numamem++;
566 slots++;
567 for (i = 1; i < nb_numa_nodes + 1; ++i) {
568 mem_base = next_base;
569 mem_len = *numadata++;
570 if (i == 1)
571 mem_len -= 1024 * 1024;
572 next_base = mem_base + mem_len;
573
574 /* Cut out the PCI hole */
575 if (mem_base <= RamSize && next_base > RamSize) {
576 mem_len -= next_base - RamSize;
577 if (mem_len > 0) {
578 acpi_build_srat_memory(numamem, mem_base, mem_len, i-1, 1);
579 numamem++;
580 slots++;
581 }
582 mem_base = 1ULL << 32;
583 mem_len = next_base - RamSize;
584 next_base += (1ULL << 32) - RamSize;
585 }
586 acpi_build_srat_memory(numamem, mem_base, mem_len, i-1, 1);
587 numamem++;
588 slots++;
589 }
590 for (; slots < nb_numa_nodes + 2; slots++) {
591 acpi_build_srat_memory(numamem, 0, 0, 0, 0);
592 numamem++;
593 }
594
595 build_header((void*)srat, SRAT_SIGNATURE, srat_size, 1);
596
597 return srat;
598}
599
Kevin O'Connor2929c352009-07-25 13:48:27 -0400600struct rsdp_descriptor *RsdpAddr;
601
Kevin O'Connora9242a22009-10-07 19:42:07 -0400602#define MAX_ACPI_TABLES 20
Kevin O'Connor2929c352009-07-25 13:48:27 -0400603void
604acpi_bios_init(void)
605{
606 if (! CONFIG_ACPI)
607 return;
608
609 dprintf(3, "init ACPI tables\n");
610
611 // This code is hardcoded for PIIX4 Power Management device.
612 int bdf = pci_find_device(PCI_VENDOR_ID_INTEL
613 , PCI_DEVICE_ID_INTEL_82371AB_3);
614 if (bdf < 0)
615 // Device not found
616 return;
617
618 // Create initial rsdt table
Kevin O'Connor415d4292009-08-30 19:19:31 -0400619 struct rsdp_descriptor *rsdp = malloc_fseg(sizeof(*rsdp));
Kevin O'Connora9242a22009-10-07 19:42:07 -0400620 if (!rsdp) {
621 dprintf(1, "Not enough memory for acpi rsdp table!\n");
Kevin O'Connor2929c352009-07-25 13:48:27 -0400622 return;
623 }
Kevin O'Connora9242a22009-10-07 19:42:07 -0400624
625 u32 tables[MAX_ACPI_TABLES], tbl_idx = 0;
626
627#define ACPI_INIT_TABLE(X) \
628 do { \
629 tables[tbl_idx] = (u32)(X); \
630 if (tables[tbl_idx]) \
631 tbl_idx++; \
632 } while(0)
Kevin O'Connor2929c352009-07-25 13:48:27 -0400633
634 // Add tables
Kevin O'Connora9242a22009-10-07 19:42:07 -0400635 ACPI_INIT_TABLE(build_fadt(bdf));
636 ACPI_INIT_TABLE(build_ssdt());
637 ACPI_INIT_TABLE(build_madt());
Kevin O'Connorf4343772009-10-08 22:05:21 -0400638 ACPI_INIT_TABLE(build_hpet());
Kevin O'Connor590e5542009-10-08 22:09:02 -0400639 ACPI_INIT_TABLE(build_srat());
Kevin O'Connor2929c352009-07-25 13:48:27 -0400640
Kevin O'Connorcc6dc462009-10-08 21:18:41 -0400641 u16 i, external_tables = qemu_cfg_acpi_additional_tables();
642
643 for(i = 0; i < external_tables; i++) {
644 u16 len = qemu_cfg_next_acpi_table_len();
645 void *addr = malloc_high(len);
646 if (!addr) {
Kevin O'Connor4d9d4002009-11-25 19:35:01 -0500647 dprintf(1, "Not enough memory for ext acpi table of size %d!\n"
648 , len);
Kevin O'Connorcc6dc462009-10-08 21:18:41 -0400649 continue;
650 }
651 ACPI_INIT_TABLE(qemu_cfg_next_acpi_table_load(addr, len));
652 if (tbl_idx == MAX_ACPI_TABLES) {
Kevin O'Connor4d9d4002009-11-25 19:35:01 -0500653 dprintf(1, "Too many external tables!\n");
Kevin O'Connorcc6dc462009-10-08 21:18:41 -0400654 break;
655 }
656 }
657
Kevin O'Connora9242a22009-10-07 19:42:07 -0400658 struct rsdt_descriptor_rev1 *rsdt;
659 size_t rsdt_len = sizeof(*rsdt) + sizeof(u32) * tbl_idx;
660 rsdt = malloc_high(rsdt_len);
661
662 if (!rsdt) {
663 dprintf(1, "Not enough memory for acpi rsdt table!\n");
664 return;
665 }
666 memset(rsdt, 0, rsdt_len);
667 memcpy(rsdt->table_offset_entry, tables, sizeof(u32) * tbl_idx);
668
669 build_header((void*)rsdt, RSDT_SIGNATURE, rsdt_len, 1);
Kevin O'Connor2929c352009-07-25 13:48:27 -0400670
671 // Build rsdp pointer table
Kevin O'Connor2929c352009-07-25 13:48:27 -0400672 memset(rsdp, 0, sizeof(*rsdp));
673 rsdp->signature = RSDP_SIGNATURE;
674 memcpy(rsdp->oem_id, CONFIG_APPNAME6, 6);
675 rsdp->rsdt_physical_address = cpu_to_le32((u32)rsdt);
676 rsdp->checksum -= checksum(rsdp, 20);
677 RsdpAddr = rsdp;
678 dprintf(1, "ACPI tables: RSDP=%p RSDT=%p\n", rsdp, rsdt);
Kevin O'Connor276d4a92008-06-11 22:47:01 -0400679}
Kevin O'Connor9967ab72008-12-18 21:57:33 -0500680
681u32
Kevin O'Connor1ca05b02010-01-03 17:43:37 -0500682find_resume_vector(void)
Kevin O'Connor9967ab72008-12-18 21:57:33 -0500683{
684 dprintf(4, "rsdp=%p\n", RsdpAddr);
685 if (!RsdpAddr || RsdpAddr->signature != RSDP_SIGNATURE)
686 return 0;
687 struct rsdt_descriptor_rev1 *rsdt = (void*)RsdpAddr->rsdt_physical_address;
688 dprintf(4, "rsdt=%p\n", rsdt);
689 if (!rsdt || rsdt->signature != RSDT_SIGNATURE)
690 return 0;
691 void *end = (void*)rsdt + rsdt->length;
692 int i;
693 for (i=0; (void*)&rsdt->table_offset_entry[i] < end; i++) {
694 struct fadt_descriptor_rev1 *fadt = (void*)rsdt->table_offset_entry[i];
695 if (!fadt || fadt->signature != FACP_SIGNATURE)
696 continue;
697 dprintf(4, "fadt=%p\n", fadt);
698 struct facs_descriptor_rev1 *facs = (void*)fadt->firmware_ctrl;
699 dprintf(4, "facs=%p\n", facs);
700 if (! facs || facs->signature != FACS_SIGNATURE)
701 return 0;
702 // Found it.
703 dprintf(4, "resume addr=%d\n", facs->firmware_waking_vector);
704 return facs->firmware_waking_vector;
705 }
706 return 0;
707}