xref: /freebsd/usr.sbin/bhyve/acpi.c (revision 148a8da8)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2012 NetApp, Inc.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 /*
32  * bhyve ACPI table generator.
33  *
34  * Create the minimal set of ACPI tables required to boot FreeBSD (and
35  * hopefully other o/s's) by writing out ASL template files for each of
36  * the tables and the compiling them to AML with the Intel iasl compiler.
37  * The AML files are then read into guest memory.
38  *
39  *  The tables are placed in the guest's ROM area just below 1MB physical,
40  * above the MPTable.
41  *
42  *  Layout
43  *  ------
44  *   RSDP  ->   0xf2400    (36 bytes fixed)
45  *     RSDT  ->   0xf2440    (36 bytes + 4*7 table addrs, 4 used)
46  *     XSDT  ->   0xf2480    (36 bytes + 8*7 table addrs, 4 used)
47  *       MADT  ->   0xf2500  (depends on #CPUs)
48  *       FADT  ->   0xf2600  (268 bytes)
49  *       HPET  ->   0xf2740  (56 bytes)
50  *       MCFG  ->   0xf2780  (60 bytes)
51  *         FACS  ->   0xf27C0 (64 bytes)
52  *         DSDT  ->   0xf2800 (variable - can go up to 0x100000)
53  */
54 
55 #include <sys/cdefs.h>
56 __FBSDID("$FreeBSD$");
57 
58 #include <sys/param.h>
59 #include <sys/errno.h>
60 #include <sys/stat.h>
61 
62 #include <paths.h>
63 #include <stdarg.h>
64 #include <stdio.h>
65 #include <stdlib.h>
66 #include <string.h>
67 #include <unistd.h>
68 
69 #include <machine/vmm.h>
70 #include <vmmapi.h>
71 
72 #include "bhyverun.h"
73 #include "acpi.h"
74 #include "pci_emul.h"
75 
76 /*
77  * Define the base address of the ACPI tables, and the offsets to
78  * the individual tables
79  */
80 #define BHYVE_ACPI_BASE		0xf2400
81 #define RSDT_OFFSET		0x040
82 #define XSDT_OFFSET		0x080
83 #define MADT_OFFSET		0x100
84 #define FADT_OFFSET		0x200
85 #define	HPET_OFFSET		0x340
86 #define	MCFG_OFFSET		0x380
87 #define FACS_OFFSET		0x3C0
88 #define DSDT_OFFSET		0x400
89 
90 #define	BHYVE_ASL_TEMPLATE	"bhyve.XXXXXXX"
91 #define BHYVE_ASL_SUFFIX	".aml"
92 #define BHYVE_ASL_COMPILER	"/usr/sbin/iasl"
93 
94 static int basl_keep_temps;
95 static int basl_verbose_iasl;
96 static int basl_ncpu;
97 static uint32_t basl_acpi_base = BHYVE_ACPI_BASE;
98 static uint32_t hpet_capabilities;
99 
100 /*
101  * Contains the full pathname of the template to be passed
102  * to mkstemp/mktemps(3)
103  */
104 static char basl_template[MAXPATHLEN];
105 static char basl_stemplate[MAXPATHLEN];
106 
107 /*
108  * State for dsdt_line(), dsdt_indent(), and dsdt_unindent().
109  */
110 static FILE *dsdt_fp;
111 static int dsdt_indent_level;
112 static int dsdt_error;
113 
114 struct basl_fio {
115 	int	fd;
116 	FILE	*fp;
117 	char	f_name[MAXPATHLEN];
118 };
119 
120 #define EFPRINTF(...) \
121 	if (fprintf(__VA_ARGS__) < 0) goto err_exit;
122 
123 #define EFFLUSH(x) \
124 	if (fflush(x) != 0) goto err_exit;
125 
126 static int
127 basl_fwrite_rsdp(FILE *fp)
128 {
129 	EFPRINTF(fp, "/*\n");
130 	EFPRINTF(fp, " * bhyve RSDP template\n");
131 	EFPRINTF(fp, " */\n");
132 	EFPRINTF(fp, "[0008]\t\tSignature : \"RSD PTR \"\n");
133 	EFPRINTF(fp, "[0001]\t\tChecksum : 43\n");
134 	EFPRINTF(fp, "[0006]\t\tOem ID : \"BHYVE \"\n");
135 	EFPRINTF(fp, "[0001]\t\tRevision : 02\n");
136 	EFPRINTF(fp, "[0004]\t\tRSDT Address : %08X\n",
137 	    basl_acpi_base + RSDT_OFFSET);
138 	EFPRINTF(fp, "[0004]\t\tLength : 00000024\n");
139 	EFPRINTF(fp, "[0008]\t\tXSDT Address : 00000000%08X\n",
140 	    basl_acpi_base + XSDT_OFFSET);
141 	EFPRINTF(fp, "[0001]\t\tExtended Checksum : 00\n");
142 	EFPRINTF(fp, "[0003]\t\tReserved : 000000\n");
143 
144 	EFFLUSH(fp);
145 
146 	return (0);
147 
148 err_exit:
149 	return (errno);
150 }
151 
152 static int
153 basl_fwrite_rsdt(FILE *fp)
154 {
155 	EFPRINTF(fp, "/*\n");
156 	EFPRINTF(fp, " * bhyve RSDT template\n");
157 	EFPRINTF(fp, " */\n");
158 	EFPRINTF(fp, "[0004]\t\tSignature : \"RSDT\"\n");
159 	EFPRINTF(fp, "[0004]\t\tTable Length : 00000000\n");
160 	EFPRINTF(fp, "[0001]\t\tRevision : 01\n");
161 	EFPRINTF(fp, "[0001]\t\tChecksum : 00\n");
162 	EFPRINTF(fp, "[0006]\t\tOem ID : \"BHYVE \"\n");
163 	EFPRINTF(fp, "[0008]\t\tOem Table ID : \"BVRSDT  \"\n");
164 	EFPRINTF(fp, "[0004]\t\tOem Revision : 00000001\n");
165 	/* iasl will fill in the compiler ID/revision fields */
166 	EFPRINTF(fp, "[0004]\t\tAsl Compiler ID : \"xxxx\"\n");
167 	EFPRINTF(fp, "[0004]\t\tAsl Compiler Revision : 00000000\n");
168 	EFPRINTF(fp, "\n");
169 
170 	/* Add in pointers to the MADT, FADT and HPET */
171 	EFPRINTF(fp, "[0004]\t\tACPI Table Address 0 : %08X\n",
172 	    basl_acpi_base + MADT_OFFSET);
173 	EFPRINTF(fp, "[0004]\t\tACPI Table Address 1 : %08X\n",
174 	    basl_acpi_base + FADT_OFFSET);
175 	EFPRINTF(fp, "[0004]\t\tACPI Table Address 2 : %08X\n",
176 	    basl_acpi_base + HPET_OFFSET);
177 	EFPRINTF(fp, "[0004]\t\tACPI Table Address 3 : %08X\n",
178 	    basl_acpi_base + MCFG_OFFSET);
179 
180 	EFFLUSH(fp);
181 
182 	return (0);
183 
184 err_exit:
185 	return (errno);
186 }
187 
188 static int
189 basl_fwrite_xsdt(FILE *fp)
190 {
191 	EFPRINTF(fp, "/*\n");
192 	EFPRINTF(fp, " * bhyve XSDT template\n");
193 	EFPRINTF(fp, " */\n");
194 	EFPRINTF(fp, "[0004]\t\tSignature : \"XSDT\"\n");
195 	EFPRINTF(fp, "[0004]\t\tTable Length : 00000000\n");
196 	EFPRINTF(fp, "[0001]\t\tRevision : 01\n");
197 	EFPRINTF(fp, "[0001]\t\tChecksum : 00\n");
198 	EFPRINTF(fp, "[0006]\t\tOem ID : \"BHYVE \"\n");
199 	EFPRINTF(fp, "[0008]\t\tOem Table ID : \"BVXSDT  \"\n");
200 	EFPRINTF(fp, "[0004]\t\tOem Revision : 00000001\n");
201 	/* iasl will fill in the compiler ID/revision fields */
202 	EFPRINTF(fp, "[0004]\t\tAsl Compiler ID : \"xxxx\"\n");
203 	EFPRINTF(fp, "[0004]\t\tAsl Compiler Revision : 00000000\n");
204 	EFPRINTF(fp, "\n");
205 
206 	/* Add in pointers to the MADT, FADT and HPET */
207 	EFPRINTF(fp, "[0004]\t\tACPI Table Address 0 : 00000000%08X\n",
208 	    basl_acpi_base + MADT_OFFSET);
209 	EFPRINTF(fp, "[0004]\t\tACPI Table Address 1 : 00000000%08X\n",
210 	    basl_acpi_base + FADT_OFFSET);
211 	EFPRINTF(fp, "[0004]\t\tACPI Table Address 2 : 00000000%08X\n",
212 	    basl_acpi_base + HPET_OFFSET);
213 	EFPRINTF(fp, "[0004]\t\tACPI Table Address 3 : 00000000%08X\n",
214 	    basl_acpi_base + MCFG_OFFSET);
215 
216 	EFFLUSH(fp);
217 
218 	return (0);
219 
220 err_exit:
221 	return (errno);
222 }
223 
224 static int
225 basl_fwrite_madt(FILE *fp)
226 {
227 	int i;
228 
229 	EFPRINTF(fp, "/*\n");
230 	EFPRINTF(fp, " * bhyve MADT template\n");
231 	EFPRINTF(fp, " */\n");
232 	EFPRINTF(fp, "[0004]\t\tSignature : \"APIC\"\n");
233 	EFPRINTF(fp, "[0004]\t\tTable Length : 00000000\n");
234 	EFPRINTF(fp, "[0001]\t\tRevision : 01\n");
235 	EFPRINTF(fp, "[0001]\t\tChecksum : 00\n");
236 	EFPRINTF(fp, "[0006]\t\tOem ID : \"BHYVE \"\n");
237 	EFPRINTF(fp, "[0008]\t\tOem Table ID : \"BVMADT  \"\n");
238 	EFPRINTF(fp, "[0004]\t\tOem Revision : 00000001\n");
239 
240 	/* iasl will fill in the compiler ID/revision fields */
241 	EFPRINTF(fp, "[0004]\t\tAsl Compiler ID : \"xxxx\"\n");
242 	EFPRINTF(fp, "[0004]\t\tAsl Compiler Revision : 00000000\n");
243 	EFPRINTF(fp, "\n");
244 
245 	EFPRINTF(fp, "[0004]\t\tLocal Apic Address : FEE00000\n");
246 	EFPRINTF(fp, "[0004]\t\tFlags (decoded below) : 00000001\n");
247 	EFPRINTF(fp, "\t\t\tPC-AT Compatibility : 1\n");
248 	EFPRINTF(fp, "\n");
249 
250 	/* Add a Processor Local APIC entry for each CPU */
251 	for (i = 0; i < basl_ncpu; i++) {
252 		EFPRINTF(fp, "[0001]\t\tSubtable Type : 00\n");
253 		EFPRINTF(fp, "[0001]\t\tLength : 08\n");
254 		/* iasl expects hex values for the proc and apic id's */
255 		EFPRINTF(fp, "[0001]\t\tProcessor ID : %02x\n", i);
256 		EFPRINTF(fp, "[0001]\t\tLocal Apic ID : %02x\n", i);
257 		EFPRINTF(fp, "[0004]\t\tFlags (decoded below) : 00000001\n");
258 		EFPRINTF(fp, "\t\t\tProcessor Enabled : 1\n");
259 		EFPRINTF(fp, "\t\t\tRuntime Online Capable : 0\n");
260 		EFPRINTF(fp, "\n");
261 	}
262 
263 	/* Always a single IOAPIC entry, with ID 0 */
264 	EFPRINTF(fp, "[0001]\t\tSubtable Type : 01\n");
265 	EFPRINTF(fp, "[0001]\t\tLength : 0C\n");
266 	/* iasl expects a hex value for the i/o apic id */
267 	EFPRINTF(fp, "[0001]\t\tI/O Apic ID : %02x\n", 0);
268 	EFPRINTF(fp, "[0001]\t\tReserved : 00\n");
269 	EFPRINTF(fp, "[0004]\t\tAddress : fec00000\n");
270 	EFPRINTF(fp, "[0004]\t\tInterrupt : 00000000\n");
271 	EFPRINTF(fp, "\n");
272 
273 	/* Legacy IRQ0 is connected to pin 2 of the IOAPIC */
274 	EFPRINTF(fp, "[0001]\t\tSubtable Type : 02\n");
275 	EFPRINTF(fp, "[0001]\t\tLength : 0A\n");
276 	EFPRINTF(fp, "[0001]\t\tBus : 00\n");
277 	EFPRINTF(fp, "[0001]\t\tSource : 00\n");
278 	EFPRINTF(fp, "[0004]\t\tInterrupt : 00000002\n");
279 	EFPRINTF(fp, "[0002]\t\tFlags (decoded below) : 0005\n");
280 	EFPRINTF(fp, "\t\t\tPolarity : 1\n");
281 	EFPRINTF(fp, "\t\t\tTrigger Mode : 1\n");
282 	EFPRINTF(fp, "\n");
283 
284 	EFPRINTF(fp, "[0001]\t\tSubtable Type : 02\n");
285 	EFPRINTF(fp, "[0001]\t\tLength : 0A\n");
286 	EFPRINTF(fp, "[0001]\t\tBus : 00\n");
287 	EFPRINTF(fp, "[0001]\t\tSource : %02X\n", SCI_INT);
288 	EFPRINTF(fp, "[0004]\t\tInterrupt : %08X\n", SCI_INT);
289 	EFPRINTF(fp, "[0002]\t\tFlags (decoded below) : 0000\n");
290 	EFPRINTF(fp, "\t\t\tPolarity : 3\n");
291 	EFPRINTF(fp, "\t\t\tTrigger Mode : 3\n");
292 	EFPRINTF(fp, "\n");
293 
294 	/* Local APIC NMI is connected to LINT 1 on all CPUs */
295 	EFPRINTF(fp, "[0001]\t\tSubtable Type : 04\n");
296 	EFPRINTF(fp, "[0001]\t\tLength : 06\n");
297 	EFPRINTF(fp, "[0001]\t\tProcessorId : FF\n");
298 	EFPRINTF(fp, "[0002]\t\tFlags (decoded below) : 0005\n");
299 	EFPRINTF(fp, "\t\t\tPolarity : 1\n");
300 	EFPRINTF(fp, "\t\t\tTrigger Mode : 1\n");
301 	EFPRINTF(fp, "[0001]\t\tInterrupt : 01\n");
302 	EFPRINTF(fp, "\n");
303 
304 	EFFLUSH(fp);
305 
306 	return (0);
307 
308 err_exit:
309 	return (errno);
310 }
311 
312 static int
313 basl_fwrite_fadt(FILE *fp)
314 {
315 	EFPRINTF(fp, "/*\n");
316 	EFPRINTF(fp, " * bhyve FADT template\n");
317 	EFPRINTF(fp, " */\n");
318 	EFPRINTF(fp, "[0004]\t\tSignature : \"FACP\"\n");
319 	EFPRINTF(fp, "[0004]\t\tTable Length : 0000010C\n");
320 	EFPRINTF(fp, "[0001]\t\tRevision : 05\n");
321 	EFPRINTF(fp, "[0001]\t\tChecksum : 00\n");
322 	EFPRINTF(fp, "[0006]\t\tOem ID : \"BHYVE \"\n");
323 	EFPRINTF(fp, "[0008]\t\tOem Table ID : \"BVFACP  \"\n");
324 	EFPRINTF(fp, "[0004]\t\tOem Revision : 00000001\n");
325 	/* iasl will fill in the compiler ID/revision fields */
326 	EFPRINTF(fp, "[0004]\t\tAsl Compiler ID : \"xxxx\"\n");
327 	EFPRINTF(fp, "[0004]\t\tAsl Compiler Revision : 00000000\n");
328 	EFPRINTF(fp, "\n");
329 
330 	EFPRINTF(fp, "[0004]\t\tFACS Address : %08X\n",
331 	    basl_acpi_base + FACS_OFFSET);
332 	EFPRINTF(fp, "[0004]\t\tDSDT Address : %08X\n",
333 	    basl_acpi_base + DSDT_OFFSET);
334 	EFPRINTF(fp, "[0001]\t\tModel : 01\n");
335 	EFPRINTF(fp, "[0001]\t\tPM Profile : 00 [Unspecified]\n");
336 	EFPRINTF(fp, "[0002]\t\tSCI Interrupt : %04X\n",
337 	    SCI_INT);
338 	EFPRINTF(fp, "[0004]\t\tSMI Command Port : %08X\n",
339 	    SMI_CMD);
340 	EFPRINTF(fp, "[0001]\t\tACPI Enable Value : %02X\n",
341 	    BHYVE_ACPI_ENABLE);
342 	EFPRINTF(fp, "[0001]\t\tACPI Disable Value : %02X\n",
343 	    BHYVE_ACPI_DISABLE);
344 	EFPRINTF(fp, "[0001]\t\tS4BIOS Command : 00\n");
345 	EFPRINTF(fp, "[0001]\t\tP-State Control : 00\n");
346 	EFPRINTF(fp, "[0004]\t\tPM1A Event Block Address : %08X\n",
347 	    PM1A_EVT_ADDR);
348 	EFPRINTF(fp, "[0004]\t\tPM1B Event Block Address : 00000000\n");
349 	EFPRINTF(fp, "[0004]\t\tPM1A Control Block Address : %08X\n",
350 	    PM1A_CNT_ADDR);
351 	EFPRINTF(fp, "[0004]\t\tPM1B Control Block Address : 00000000\n");
352 	EFPRINTF(fp, "[0004]\t\tPM2 Control Block Address : 00000000\n");
353 	EFPRINTF(fp, "[0004]\t\tPM Timer Block Address : %08X\n",
354 	    IO_PMTMR);
355 	EFPRINTF(fp, "[0004]\t\tGPE0 Block Address : 00000000\n");
356 	EFPRINTF(fp, "[0004]\t\tGPE1 Block Address : 00000000\n");
357 	EFPRINTF(fp, "[0001]\t\tPM1 Event Block Length : 04\n");
358 	EFPRINTF(fp, "[0001]\t\tPM1 Control Block Length : 02\n");
359 	EFPRINTF(fp, "[0001]\t\tPM2 Control Block Length : 00\n");
360 	EFPRINTF(fp, "[0001]\t\tPM Timer Block Length : 04\n");
361 	EFPRINTF(fp, "[0001]\t\tGPE0 Block Length : 00\n");
362 	EFPRINTF(fp, "[0001]\t\tGPE1 Block Length : 00\n");
363 	EFPRINTF(fp, "[0001]\t\tGPE1 Base Offset : 00\n");
364 	EFPRINTF(fp, "[0001]\t\t_CST Support : 00\n");
365 	EFPRINTF(fp, "[0002]\t\tC2 Latency : 0000\n");
366 	EFPRINTF(fp, "[0002]\t\tC3 Latency : 0000\n");
367 	EFPRINTF(fp, "[0002]\t\tCPU Cache Size : 0000\n");
368 	EFPRINTF(fp, "[0002]\t\tCache Flush Stride : 0000\n");
369 	EFPRINTF(fp, "[0001]\t\tDuty Cycle Offset : 00\n");
370 	EFPRINTF(fp, "[0001]\t\tDuty Cycle Width : 00\n");
371 	EFPRINTF(fp, "[0001]\t\tRTC Day Alarm Index : 00\n");
372 	EFPRINTF(fp, "[0001]\t\tRTC Month Alarm Index : 00\n");
373 	EFPRINTF(fp, "[0001]\t\tRTC Century Index : 32\n");
374 	EFPRINTF(fp, "[0002]\t\tBoot Flags (decoded below) : 0000\n");
375 	EFPRINTF(fp, "\t\t\tLegacy Devices Supported (V2) : 0\n");
376 	EFPRINTF(fp, "\t\t\t8042 Present on ports 60/64 (V2) : 0\n");
377 	EFPRINTF(fp, "\t\t\tVGA Not Present (V4) : 1\n");
378 	EFPRINTF(fp, "\t\t\tMSI Not Supported (V4) : 0\n");
379 	EFPRINTF(fp, "\t\t\tPCIe ASPM Not Supported (V4) : 1\n");
380 	EFPRINTF(fp, "\t\t\tCMOS RTC Not Present (V5) : 0\n");
381 	EFPRINTF(fp, "[0001]\t\tReserved : 00\n");
382 	EFPRINTF(fp, "[0004]\t\tFlags (decoded below) : 00000000\n");
383 	EFPRINTF(fp, "\t\t\tWBINVD instruction is operational (V1) : 1\n");
384 	EFPRINTF(fp, "\t\t\tWBINVD flushes all caches (V1) : 0\n");
385 	EFPRINTF(fp, "\t\t\tAll CPUs support C1 (V1) : 1\n");
386 	EFPRINTF(fp, "\t\t\tC2 works on MP system (V1) : 0\n");
387 	EFPRINTF(fp, "\t\t\tControl Method Power Button (V1) : 0\n");
388 	EFPRINTF(fp, "\t\t\tControl Method Sleep Button (V1) : 1\n");
389 	EFPRINTF(fp, "\t\t\tRTC wake not in fixed reg space (V1) : 0\n");
390 	EFPRINTF(fp, "\t\t\tRTC can wake system from S4 (V1) : 0\n");
391 	EFPRINTF(fp, "\t\t\t32-bit PM Timer (V1) : 1\n");
392 	EFPRINTF(fp, "\t\t\tDocking Supported (V1) : 0\n");
393 	EFPRINTF(fp, "\t\t\tReset Register Supported (V2) : 1\n");
394 	EFPRINTF(fp, "\t\t\tSealed Case (V3) : 0\n");
395 	EFPRINTF(fp, "\t\t\tHeadless - No Video (V3) : 1\n");
396 	EFPRINTF(fp, "\t\t\tUse native instr after SLP_TYPx (V3) : 0\n");
397 	EFPRINTF(fp, "\t\t\tPCIEXP_WAK Bits Supported (V4) : 0\n");
398 	EFPRINTF(fp, "\t\t\tUse Platform Timer (V4) : 0\n");
399 	EFPRINTF(fp, "\t\t\tRTC_STS valid on S4 wake (V4) : 0\n");
400 	EFPRINTF(fp, "\t\t\tRemote Power-on capable (V4) : 0\n");
401 	EFPRINTF(fp, "\t\t\tUse APIC Cluster Model (V4) : 0\n");
402 	EFPRINTF(fp, "\t\t\tUse APIC Physical Destination Mode (V4) : 1\n");
403 	EFPRINTF(fp, "\t\t\tHardware Reduced (V5) : 0\n");
404 	EFPRINTF(fp, "\t\t\tLow Power S0 Idle (V5) : 0\n");
405 	EFPRINTF(fp, "\n");
406 
407 	EFPRINTF(fp,
408 	    "[0012]\t\tReset Register : [Generic Address Structure]\n");
409 	EFPRINTF(fp, "[0001]\t\tSpace ID : 01 [SystemIO]\n");
410 	EFPRINTF(fp, "[0001]\t\tBit Width : 08\n");
411 	EFPRINTF(fp, "[0001]\t\tBit Offset : 00\n");
412 	EFPRINTF(fp, "[0001]\t\tEncoded Access Width : 01 [Byte Access:8]\n");
413 	EFPRINTF(fp, "[0008]\t\tAddress : 0000000000000CF9\n");
414 	EFPRINTF(fp, "\n");
415 
416 	EFPRINTF(fp, "[0001]\t\tValue to cause reset : 06\n");
417 	EFPRINTF(fp, "[0002]\t\tARM Flags (decoded below): 0000\n");
418 	EFPRINTF(fp, "\t\t\tPSCI Compliant : 0\n");
419 	EFPRINTF(fp, "\t\t\tMust use HVC for PSCI : 0\n");
420 	EFPRINTF(fp, "[0001]\t\tFADT Minor Revision : 01\n");
421 	EFPRINTF(fp, "[0008]\t\tFACS Address : 00000000%08X\n",
422 	    basl_acpi_base + FACS_OFFSET);
423 	EFPRINTF(fp, "[0008]\t\tDSDT Address : 00000000%08X\n",
424 	    basl_acpi_base + DSDT_OFFSET);
425 	EFPRINTF(fp,
426 	    "[0012]\t\tPM1A Event Block : [Generic Address Structure]\n");
427 	EFPRINTF(fp, "[0001]\t\tSpace ID : 01 [SystemIO]\n");
428 	EFPRINTF(fp, "[0001]\t\tBit Width : 20\n");
429 	EFPRINTF(fp, "[0001]\t\tBit Offset : 00\n");
430 	EFPRINTF(fp, "[0001]\t\tEncoded Access Width : 02 [Word Access:16]\n");
431 	EFPRINTF(fp, "[0008]\t\tAddress : 00000000%08X\n",
432 	    PM1A_EVT_ADDR);
433 	EFPRINTF(fp, "\n");
434 
435 	EFPRINTF(fp,
436 	    "[0012]\t\tPM1B Event Block : [Generic Address Structure]\n");
437 	EFPRINTF(fp, "[0001]\t\tSpace ID : 01 [SystemIO]\n");
438 	EFPRINTF(fp, "[0001]\t\tBit Width : 00\n");
439 	EFPRINTF(fp, "[0001]\t\tBit Offset : 00\n");
440 	EFPRINTF(fp,
441 	    "[0001]\t\tEncoded Access Width : 00 [Undefined/Legacy]\n");
442 	EFPRINTF(fp, "[0008]\t\tAddress : 0000000000000000\n");
443 	EFPRINTF(fp, "\n");
444 
445 	EFPRINTF(fp,
446 	    "[0012]\t\tPM1A Control Block : [Generic Address Structure]\n");
447 	EFPRINTF(fp, "[0001]\t\tSpace ID : 01 [SystemIO]\n");
448 	EFPRINTF(fp, "[0001]\t\tBit Width : 10\n");
449 	EFPRINTF(fp, "[0001]\t\tBit Offset : 00\n");
450 	EFPRINTF(fp, "[0001]\t\tEncoded Access Width : 02 [Word Access:16]\n");
451 	EFPRINTF(fp, "[0008]\t\tAddress : 00000000%08X\n",
452 	    PM1A_CNT_ADDR);
453 	EFPRINTF(fp, "\n");
454 
455 	EFPRINTF(fp,
456 	    "[0012]\t\tPM1B Control Block : [Generic Address Structure]\n");
457 	EFPRINTF(fp, "[0001]\t\tSpace ID : 01 [SystemIO]\n");
458 	EFPRINTF(fp, "[0001]\t\tBit Width : 00\n");
459 	EFPRINTF(fp, "[0001]\t\tBit Offset : 00\n");
460 	EFPRINTF(fp,
461 	    "[0001]\t\tEncoded Access Width : 00 [Undefined/Legacy]\n");
462 	EFPRINTF(fp, "[0008]\t\tAddress : 0000000000000000\n");
463 	EFPRINTF(fp, "\n");
464 
465 	EFPRINTF(fp,
466 	    "[0012]\t\tPM2 Control Block : [Generic Address Structure]\n");
467 	EFPRINTF(fp, "[0001]\t\tSpace ID : 01 [SystemIO]\n");
468 	EFPRINTF(fp, "[0001]\t\tBit Width : 08\n");
469 	EFPRINTF(fp, "[0001]\t\tBit Offset : 00\n");
470 	EFPRINTF(fp,
471 	    "[0001]\t\tEncoded Access Width : 00 [Undefined/Legacy]\n");
472 	EFPRINTF(fp, "[0008]\t\tAddress : 0000000000000000\n");
473 	EFPRINTF(fp, "\n");
474 
475 	/* Valid for bhyve */
476 	EFPRINTF(fp,
477 	    "[0012]\t\tPM Timer Block : [Generic Address Structure]\n");
478 	EFPRINTF(fp, "[0001]\t\tSpace ID : 01 [SystemIO]\n");
479 	EFPRINTF(fp, "[0001]\t\tBit Width : 20\n");
480 	EFPRINTF(fp, "[0001]\t\tBit Offset : 00\n");
481 	EFPRINTF(fp,
482 	    "[0001]\t\tEncoded Access Width : 03 [DWord Access:32]\n");
483 	EFPRINTF(fp, "[0008]\t\tAddress : 00000000%08X\n",
484 	    IO_PMTMR);
485 	EFPRINTF(fp, "\n");
486 
487 	EFPRINTF(fp, "[0012]\t\tGPE0 Block : [Generic Address Structure]\n");
488 	EFPRINTF(fp, "[0001]\t\tSpace ID : 01 [SystemIO]\n");
489 	EFPRINTF(fp, "[0001]\t\tBit Width : 00\n");
490 	EFPRINTF(fp, "[0001]\t\tBit Offset : 00\n");
491 	EFPRINTF(fp, "[0001]\t\tEncoded Access Width : 01 [Byte Access:8]\n");
492 	EFPRINTF(fp, "[0008]\t\tAddress : 0000000000000000\n");
493 	EFPRINTF(fp, "\n");
494 
495 	EFPRINTF(fp, "[0012]\t\tGPE1 Block : [Generic Address Structure]\n");
496 	EFPRINTF(fp, "[0001]\t\tSpace ID : 01 [SystemIO]\n");
497 	EFPRINTF(fp, "[0001]\t\tBit Width : 00\n");
498 	EFPRINTF(fp, "[0001]\t\tBit Offset : 00\n");
499 	EFPRINTF(fp,
500 	    "[0001]\t\tEncoded Access Width : 00 [Undefined/Legacy]\n");
501 	EFPRINTF(fp, "[0008]\t\tAddress : 0000000000000000\n");
502 	EFPRINTF(fp, "\n");
503 
504 	EFPRINTF(fp,
505 	   "[0012]\t\tSleep Control Register : [Generic Address Structure]\n");
506 	EFPRINTF(fp, "[0001]\t\tSpace ID : 01 [SystemIO]\n");
507 	EFPRINTF(fp, "[0001]\t\tBit Width : 08\n");
508 	EFPRINTF(fp, "[0001]\t\tBit Offset : 00\n");
509 	EFPRINTF(fp, "[0001]\t\tEncoded Access Width : 01 [Byte Access:8]\n");
510 	EFPRINTF(fp, "[0008]\t\tAddress : 0000000000000000\n");
511 	EFPRINTF(fp, "\n");
512 
513 	EFPRINTF(fp,
514 	    "[0012]\t\tSleep Status Register : [Generic Address Structure]\n");
515 	EFPRINTF(fp, "[0001]\t\tSpace ID : 01 [SystemIO]\n");
516 	EFPRINTF(fp, "[0001]\t\tBit Width : 08\n");
517 	EFPRINTF(fp, "[0001]\t\tBit Offset : 00\n");
518 	EFPRINTF(fp, "[0001]\t\tEncoded Access Width : 01 [Byte Access:8]\n");
519 	EFPRINTF(fp, "[0008]\t\tAddress : 0000000000000000\n");
520 
521 	EFFLUSH(fp);
522 
523 	return (0);
524 
525 err_exit:
526 	return (errno);
527 }
528 
529 static int
530 basl_fwrite_hpet(FILE *fp)
531 {
532 	EFPRINTF(fp, "/*\n");
533 	EFPRINTF(fp, " * bhyve HPET template\n");
534 	EFPRINTF(fp, " */\n");
535 	EFPRINTF(fp, "[0004]\t\tSignature : \"HPET\"\n");
536 	EFPRINTF(fp, "[0004]\t\tTable Length : 00000000\n");
537 	EFPRINTF(fp, "[0001]\t\tRevision : 01\n");
538 	EFPRINTF(fp, "[0001]\t\tChecksum : 00\n");
539 	EFPRINTF(fp, "[0006]\t\tOem ID : \"BHYVE \"\n");
540 	EFPRINTF(fp, "[0008]\t\tOem Table ID : \"BVHPET  \"\n");
541 	EFPRINTF(fp, "[0004]\t\tOem Revision : 00000001\n");
542 
543 	/* iasl will fill in the compiler ID/revision fields */
544 	EFPRINTF(fp, "[0004]\t\tAsl Compiler ID : \"xxxx\"\n");
545 	EFPRINTF(fp, "[0004]\t\tAsl Compiler Revision : 00000000\n");
546 	EFPRINTF(fp, "\n");
547 
548 	EFPRINTF(fp, "[0004]\t\tTimer Block ID : %08X\n", hpet_capabilities);
549 	EFPRINTF(fp,
550 	    "[0012]\t\tTimer Block Register : [Generic Address Structure]\n");
551 	EFPRINTF(fp, "[0001]\t\tSpace ID : 00 [SystemMemory]\n");
552 	EFPRINTF(fp, "[0001]\t\tBit Width : 00\n");
553 	EFPRINTF(fp, "[0001]\t\tBit Offset : 00\n");
554 	EFPRINTF(fp,
555 		 "[0001]\t\tEncoded Access Width : 00 [Undefined/Legacy]\n");
556 	EFPRINTF(fp, "[0008]\t\tAddress : 00000000FED00000\n");
557 	EFPRINTF(fp, "\n");
558 
559 	EFPRINTF(fp, "[0001]\t\tHPET Number : 00\n");
560 	EFPRINTF(fp, "[0002]\t\tMinimum Clock Ticks : 0000\n");
561 	EFPRINTF(fp, "[0004]\t\tFlags (decoded below) : 00000001\n");
562 	EFPRINTF(fp, "\t\t\t4K Page Protect : 1\n");
563 	EFPRINTF(fp, "\t\t\t64K Page Protect : 0\n");
564 	EFPRINTF(fp, "\n");
565 
566 	EFFLUSH(fp);
567 
568 	return (0);
569 
570 err_exit:
571 	return (errno);
572 }
573 
574 static int
575 basl_fwrite_mcfg(FILE *fp)
576 {
577 	EFPRINTF(fp, "/*\n");
578 	EFPRINTF(fp, " * bhyve MCFG template\n");
579 	EFPRINTF(fp, " */\n");
580 	EFPRINTF(fp, "[0004]\t\tSignature : \"MCFG\"\n");
581 	EFPRINTF(fp, "[0004]\t\tTable Length : 00000000\n");
582 	EFPRINTF(fp, "[0001]\t\tRevision : 01\n");
583 	EFPRINTF(fp, "[0001]\t\tChecksum : 00\n");
584 	EFPRINTF(fp, "[0006]\t\tOem ID : \"BHYVE \"\n");
585 	EFPRINTF(fp, "[0008]\t\tOem Table ID : \"BVMCFG  \"\n");
586 	EFPRINTF(fp, "[0004]\t\tOem Revision : 00000001\n");
587 
588 	/* iasl will fill in the compiler ID/revision fields */
589 	EFPRINTF(fp, "[0004]\t\tAsl Compiler ID : \"xxxx\"\n");
590 	EFPRINTF(fp, "[0004]\t\tAsl Compiler Revision : 00000000\n");
591 	EFPRINTF(fp, "[0008]\t\tReserved : 0\n");
592 	EFPRINTF(fp, "\n");
593 
594 	EFPRINTF(fp, "[0008]\t\tBase Address : %016lX\n", pci_ecfg_base());
595 	EFPRINTF(fp, "[0002]\t\tSegment Group: 0000\n");
596 	EFPRINTF(fp, "[0001]\t\tStart Bus: 00\n");
597 	EFPRINTF(fp, "[0001]\t\tEnd Bus: FF\n");
598 	EFPRINTF(fp, "[0004]\t\tReserved : 0\n");
599 	EFFLUSH(fp);
600 	return (0);
601 err_exit:
602 	return (errno);
603 }
604 
605 static int
606 basl_fwrite_facs(FILE *fp)
607 {
608 	EFPRINTF(fp, "/*\n");
609 	EFPRINTF(fp, " * bhyve FACS template\n");
610 	EFPRINTF(fp, " */\n");
611 	EFPRINTF(fp, "[0004]\t\tSignature : \"FACS\"\n");
612 	EFPRINTF(fp, "[0004]\t\tLength : 00000040\n");
613 	EFPRINTF(fp, "[0004]\t\tHardware Signature : 00000000\n");
614 	EFPRINTF(fp, "[0004]\t\t32 Firmware Waking Vector : 00000000\n");
615 	EFPRINTF(fp, "[0004]\t\tGlobal Lock : 00000000\n");
616 	EFPRINTF(fp, "[0004]\t\tFlags (decoded below) : 00000000\n");
617 	EFPRINTF(fp, "\t\t\tS4BIOS Support Present : 0\n");
618 	EFPRINTF(fp, "\t\t\t64-bit Wake Supported (V2) : 0\n");
619 	EFPRINTF(fp,
620 	    "[0008]\t\t64 Firmware Waking Vector : 0000000000000000\n");
621 	EFPRINTF(fp, "[0001]\t\tVersion : 02\n");
622 	EFPRINTF(fp, "[0003]\t\tReserved : 000000\n");
623 	EFPRINTF(fp, "[0004]\t\tOspmFlags (decoded below) : 00000000\n");
624 	EFPRINTF(fp, "\t\t\t64-bit Wake Env Required (V2) : 0\n");
625 
626 	EFFLUSH(fp);
627 
628 	return (0);
629 
630 err_exit:
631 	return (errno);
632 }
633 
634 /*
635  * Helper routines for writing to the DSDT from other modules.
636  */
637 void
638 dsdt_line(const char *fmt, ...)
639 {
640 	va_list ap;
641 
642 	if (dsdt_error != 0)
643 		return;
644 
645 	if (strcmp(fmt, "") != 0) {
646 		if (dsdt_indent_level != 0)
647 			EFPRINTF(dsdt_fp, "%*c", dsdt_indent_level * 2, ' ');
648 		va_start(ap, fmt);
649 		if (vfprintf(dsdt_fp, fmt, ap) < 0) {
650 			va_end(ap);
651 			goto err_exit;
652 		}
653 		va_end(ap);
654 	}
655 	EFPRINTF(dsdt_fp, "\n");
656 	return;
657 
658 err_exit:
659 	dsdt_error = errno;
660 }
661 
662 void
663 dsdt_indent(int levels)
664 {
665 
666 	dsdt_indent_level += levels;
667 	assert(dsdt_indent_level >= 0);
668 }
669 
670 void
671 dsdt_unindent(int levels)
672 {
673 
674 	assert(dsdt_indent_level >= levels);
675 	dsdt_indent_level -= levels;
676 }
677 
678 void
679 dsdt_fixed_ioport(uint16_t iobase, uint16_t length)
680 {
681 
682 	dsdt_line("IO (Decode16,");
683 	dsdt_line("  0x%04X,             // Range Minimum", iobase);
684 	dsdt_line("  0x%04X,             // Range Maximum", iobase);
685 	dsdt_line("  0x01,               // Alignment");
686 	dsdt_line("  0x%02X,               // Length", length);
687 	dsdt_line("  )");
688 }
689 
690 void
691 dsdt_fixed_irq(uint8_t irq)
692 {
693 
694 	dsdt_line("IRQNoFlags ()");
695 	dsdt_line("  {%d}", irq);
696 }
697 
698 void
699 dsdt_fixed_mem32(uint32_t base, uint32_t length)
700 {
701 
702 	dsdt_line("Memory32Fixed (ReadWrite,");
703 	dsdt_line("  0x%08X,         // Address Base", base);
704 	dsdt_line("  0x%08X,         // Address Length", length);
705 	dsdt_line("  )");
706 }
707 
708 static int
709 basl_fwrite_dsdt(FILE *fp)
710 {
711 	dsdt_fp = fp;
712 	dsdt_error = 0;
713 	dsdt_indent_level = 0;
714 
715 	dsdt_line("/*");
716 	dsdt_line(" * bhyve DSDT template");
717 	dsdt_line(" */");
718 	dsdt_line("DefinitionBlock (\"bhyve_dsdt.aml\", \"DSDT\", 2,"
719 		 "\"BHYVE \", \"BVDSDT  \", 0x00000001)");
720 	dsdt_line("{");
721 	dsdt_line("  Name (_S5, Package ()");
722 	dsdt_line("  {");
723 	dsdt_line("      0x05,");
724 	dsdt_line("      Zero,");
725 	dsdt_line("  })");
726 
727 	pci_write_dsdt();
728 
729 	dsdt_line("");
730 	dsdt_line("  Scope (_SB.PC00)");
731 	dsdt_line("  {");
732 	dsdt_line("    Device (HPET)");
733 	dsdt_line("    {");
734 	dsdt_line("      Name (_HID, EISAID(\"PNP0103\"))");
735 	dsdt_line("      Name (_UID, 0)");
736 	dsdt_line("      Name (_CRS, ResourceTemplate ()");
737 	dsdt_line("      {");
738 	dsdt_indent(4);
739 	dsdt_fixed_mem32(0xFED00000, 0x400);
740 	dsdt_unindent(4);
741 	dsdt_line("      })");
742 	dsdt_line("    }");
743 	dsdt_line("  }");
744 	dsdt_line("}");
745 
746 	if (dsdt_error != 0)
747 		return (dsdt_error);
748 
749 	EFFLUSH(fp);
750 
751 	return (0);
752 
753 err_exit:
754 	return (errno);
755 }
756 
757 static int
758 basl_open(struct basl_fio *bf, int suffix)
759 {
760 	int err;
761 
762 	err = 0;
763 
764 	if (suffix) {
765 		strlcpy(bf->f_name, basl_stemplate, MAXPATHLEN);
766 		bf->fd = mkstemps(bf->f_name, strlen(BHYVE_ASL_SUFFIX));
767 	} else {
768 		strlcpy(bf->f_name, basl_template, MAXPATHLEN);
769 		bf->fd = mkstemp(bf->f_name);
770 	}
771 
772 	if (bf->fd > 0) {
773 		bf->fp = fdopen(bf->fd, "w+");
774 		if (bf->fp == NULL) {
775 			unlink(bf->f_name);
776 			close(bf->fd);
777 		}
778 	} else {
779 		err = 1;
780 	}
781 
782 	return (err);
783 }
784 
785 static void
786 basl_close(struct basl_fio *bf)
787 {
788 
789 	if (!basl_keep_temps)
790 		unlink(bf->f_name);
791 	fclose(bf->fp);
792 }
793 
794 static int
795 basl_start(struct basl_fio *in, struct basl_fio *out)
796 {
797 	int err;
798 
799 	err = basl_open(in, 0);
800 	if (!err) {
801 		err = basl_open(out, 1);
802 		if (err) {
803 			basl_close(in);
804 		}
805 	}
806 
807 	return (err);
808 }
809 
810 static void
811 basl_end(struct basl_fio *in, struct basl_fio *out)
812 {
813 
814 	basl_close(in);
815 	basl_close(out);
816 }
817 
818 static int
819 basl_load(struct vmctx *ctx, int fd, uint64_t off)
820 {
821 	struct stat sb;
822 	void *gaddr;
823 
824 	if (fstat(fd, &sb) < 0)
825 		return (errno);
826 
827 	gaddr = paddr_guest2host(ctx, basl_acpi_base + off, sb.st_size);
828 	if (gaddr == NULL)
829 		return (EFAULT);
830 
831 	if (read(fd, gaddr, sb.st_size) < 0)
832 		return (errno);
833 
834 	return (0);
835 }
836 
837 static int
838 basl_compile(struct vmctx *ctx, int (*fwrite_section)(FILE *), uint64_t offset)
839 {
840 	struct basl_fio io[2];
841 	static char iaslbuf[3*MAXPATHLEN + 10];
842 	char *fmt;
843 	int err;
844 
845 	err = basl_start(&io[0], &io[1]);
846 	if (!err) {
847 		err = (*fwrite_section)(io[0].fp);
848 
849 		if (!err) {
850 			/*
851 			 * iasl sends the results of the compilation to
852 			 * stdout. Shut this down by using the shell to
853 			 * redirect stdout to /dev/null, unless the user
854 			 * has requested verbose output for debugging
855 			 * purposes
856 			 */
857 			fmt = basl_verbose_iasl ?
858 				"%s -p %s %s" :
859 				"/bin/sh -c \"%s -p %s %s\" 1> /dev/null";
860 
861 			snprintf(iaslbuf, sizeof(iaslbuf),
862 				 fmt,
863 				 BHYVE_ASL_COMPILER,
864 				 io[1].f_name, io[0].f_name);
865 			err = system(iaslbuf);
866 
867 			if (!err) {
868 				/*
869 				 * Copy the aml output file into guest
870 				 * memory at the specified location
871 				 */
872 				err = basl_load(ctx, io[1].fd, offset);
873 			}
874 		}
875 		basl_end(&io[0], &io[1]);
876 	}
877 
878 	return (err);
879 }
880 
881 static int
882 basl_make_templates(void)
883 {
884 	const char *tmpdir;
885 	int err;
886 	int len;
887 
888 	err = 0;
889 
890 	/*
891 	 *
892 	 */
893 	if ((tmpdir = getenv("BHYVE_TMPDIR")) == NULL || *tmpdir == '\0' ||
894 	    (tmpdir = getenv("TMPDIR")) == NULL || *tmpdir == '\0') {
895 		tmpdir = _PATH_TMP;
896 	}
897 
898 	len = strlen(tmpdir);
899 
900 	if ((len + sizeof(BHYVE_ASL_TEMPLATE) + 1) < MAXPATHLEN) {
901 		strcpy(basl_template, tmpdir);
902 		while (len > 0 && basl_template[len - 1] == '/')
903 			len--;
904 		basl_template[len] = '/';
905 		strcpy(&basl_template[len + 1], BHYVE_ASL_TEMPLATE);
906 	} else
907 		err = E2BIG;
908 
909 	if (!err) {
910 		/*
911 		 * len has been intialized (and maybe adjusted) above
912 		 */
913 		if ((len + sizeof(BHYVE_ASL_TEMPLATE) + 1 +
914 		     sizeof(BHYVE_ASL_SUFFIX)) < MAXPATHLEN) {
915 			strcpy(basl_stemplate, tmpdir);
916 			basl_stemplate[len] = '/';
917 			strcpy(&basl_stemplate[len + 1], BHYVE_ASL_TEMPLATE);
918 			len = strlen(basl_stemplate);
919 			strcpy(&basl_stemplate[len], BHYVE_ASL_SUFFIX);
920 		} else
921 			err = E2BIG;
922 	}
923 
924 	return (err);
925 }
926 
927 static struct {
928 	int	(*wsect)(FILE *fp);
929 	uint64_t  offset;
930 } basl_ftables[] =
931 {
932 	{ basl_fwrite_rsdp, 0},
933 	{ basl_fwrite_rsdt, RSDT_OFFSET },
934 	{ basl_fwrite_xsdt, XSDT_OFFSET },
935 	{ basl_fwrite_madt, MADT_OFFSET },
936 	{ basl_fwrite_fadt, FADT_OFFSET },
937 	{ basl_fwrite_hpet, HPET_OFFSET },
938 	{ basl_fwrite_mcfg, MCFG_OFFSET },
939 	{ basl_fwrite_facs, FACS_OFFSET },
940 	{ basl_fwrite_dsdt, DSDT_OFFSET },
941 	{ NULL }
942 };
943 
944 int
945 acpi_build(struct vmctx *ctx, int ncpu)
946 {
947 	int err;
948 	int i;
949 
950 	basl_ncpu = ncpu;
951 
952 	err = vm_get_hpet_capabilities(ctx, &hpet_capabilities);
953 	if (err != 0)
954 		return (err);
955 
956 	/*
957 	 * For debug, allow the user to have iasl compiler output sent
958 	 * to stdout rather than /dev/null
959 	 */
960 	if (getenv("BHYVE_ACPI_VERBOSE_IASL"))
961 		basl_verbose_iasl = 1;
962 
963 	/*
964 	 * Allow the user to keep the generated ASL files for debugging
965 	 * instead of deleting them following use
966 	 */
967 	if (getenv("BHYVE_ACPI_KEEPTMPS"))
968 		basl_keep_temps = 1;
969 
970 	i = 0;
971 	err = basl_make_templates();
972 
973 	/*
974 	 * Run through all the ASL files, compiling them and
975 	 * copying them into guest memory
976 	 */
977 	while (!err && basl_ftables[i].wsect != NULL) {
978 		err = basl_compile(ctx, basl_ftables[i].wsect,
979 				   basl_ftables[i].offset);
980 		i++;
981 	}
982 
983 	return (err);
984 }
985