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1.1 root 1: /******************************************************************************
2: * platform.h
3: *
4: * Hardware platform operations. Intended for use by domain-0 kernel.
5: *
6: * Permission is hereby granted, free of charge, to any person obtaining a copy
7: * of this software and associated documentation files (the "Software"), to
8: * deal in the Software without restriction, including without limitation the
9: * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10: * sell copies of the Software, and to permit persons to whom the Software is
11: * furnished to do so, subject to the following conditions:
12: *
13: * The above copyright notice and this permission notice shall be included in
14: * all copies or substantial portions of the Software.
15: *
16: * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17: * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18: * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19: * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20: * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21: * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22: * DEALINGS IN THE SOFTWARE.
23: *
24: * Copyright (c) 2002-2006, K Fraser
25: */
26:
27: #ifndef __XEN_PUBLIC_PLATFORM_H__
28: #define __XEN_PUBLIC_PLATFORM_H__
29:
30: #include "xen.h"
31:
32: #define XENPF_INTERFACE_VERSION 0x03000001
33:
34: /*
35: * Set clock such that it would read <secs,nsecs> after 00:00:00 UTC,
36: * 1 January, 1970 if the current system time was <system_time>.
37: */
38: #define XENPF_settime 17
39: struct xenpf_settime {
40: /* IN variables. */
41: uint32_t secs;
42: uint32_t nsecs;
43: uint64_t system_time;
44: };
45: typedef struct xenpf_settime xenpf_settime_t;
46: DEFINE_XEN_GUEST_HANDLE(xenpf_settime_t);
47:
48: /*
49: * Request memory range (@mfn, @mfn+@nr_mfns-1) to have type @type.
50: * On x86, @type is an architecture-defined MTRR memory type.
51: * On success, returns the MTRR that was used (@reg) and a handle that can
52: * be passed to XENPF_DEL_MEMTYPE to accurately tear down the new setting.
53: * (x86-specific).
54: */
55: #define XENPF_add_memtype 31
56: struct xenpf_add_memtype {
57: /* IN variables. */
58: xen_pfn_t mfn;
59: uint64_t nr_mfns;
60: uint32_t type;
61: /* OUT variables. */
62: uint32_t handle;
63: uint32_t reg;
64: };
65: typedef struct xenpf_add_memtype xenpf_add_memtype_t;
66: DEFINE_XEN_GUEST_HANDLE(xenpf_add_memtype_t);
67:
68: /*
69: * Tear down an existing memory-range type. If @handle is remembered then it
70: * should be passed in to accurately tear down the correct setting (in case
71: * of overlapping memory regions with differing types). If it is not known
72: * then @handle should be set to zero. In all cases @reg must be set.
73: * (x86-specific).
74: */
75: #define XENPF_del_memtype 32
76: struct xenpf_del_memtype {
77: /* IN variables. */
78: uint32_t handle;
79: uint32_t reg;
80: };
81: typedef struct xenpf_del_memtype xenpf_del_memtype_t;
82: DEFINE_XEN_GUEST_HANDLE(xenpf_del_memtype_t);
83:
84: /* Read current type of an MTRR (x86-specific). */
85: #define XENPF_read_memtype 33
86: struct xenpf_read_memtype {
87: /* IN variables. */
88: uint32_t reg;
89: /* OUT variables. */
90: xen_pfn_t mfn;
91: uint64_t nr_mfns;
92: uint32_t type;
93: };
94: typedef struct xenpf_read_memtype xenpf_read_memtype_t;
95: DEFINE_XEN_GUEST_HANDLE(xenpf_read_memtype_t);
96:
97: #define XENPF_microcode_update 35
98: struct xenpf_microcode_update {
99: /* IN variables. */
100: XEN_GUEST_HANDLE(const_void) data;/* Pointer to microcode data */
101: uint32_t length; /* Length of microcode data. */
102: };
103: typedef struct xenpf_microcode_update xenpf_microcode_update_t;
104: DEFINE_XEN_GUEST_HANDLE(xenpf_microcode_update_t);
105:
106: #define XENPF_platform_quirk 39
107: #define QUIRK_NOIRQBALANCING 1 /* Do not restrict IO-APIC RTE targets */
108: #define QUIRK_IOAPIC_BAD_REGSEL 2 /* IO-APIC REGSEL forgets its value */
109: #define QUIRK_IOAPIC_GOOD_REGSEL 3 /* IO-APIC REGSEL behaves properly */
110: struct xenpf_platform_quirk {
111: /* IN variables. */
112: uint32_t quirk_id;
113: };
114: typedef struct xenpf_platform_quirk xenpf_platform_quirk_t;
115: DEFINE_XEN_GUEST_HANDLE(xenpf_platform_quirk_t);
116:
117: #define XENPF_firmware_info 50
118: #define XEN_FW_DISK_INFO 1 /* from int 13 AH=08/41/48 */
119: #define XEN_FW_DISK_MBR_SIGNATURE 2 /* from MBR offset 0x1b8 */
120: #define XEN_FW_VBEDDC_INFO 3 /* from int 10 AX=4f15 */
121: struct xenpf_firmware_info {
122: /* IN variables. */
123: uint32_t type;
124: uint32_t index;
125: /* OUT variables. */
126: union {
127: struct {
128: /* Int13, Fn48: Check Extensions Present. */
129: uint8_t device; /* %dl: bios device number */
130: uint8_t version; /* %ah: major version */
131: uint16_t interface_support; /* %cx: support bitmap */
132: /* Int13, Fn08: Legacy Get Device Parameters. */
133: uint16_t legacy_max_cylinder; /* %cl[7:6]:%ch: max cyl # */
134: uint8_t legacy_max_head; /* %dh: max head # */
135: uint8_t legacy_sectors_per_track; /* %cl[5:0]: max sector # */
136: /* Int13, Fn41: Get Device Parameters (as filled into %ds:%esi). */
137: /* NB. First uint16_t of buffer must be set to buffer size. */
138: XEN_GUEST_HANDLE(void) edd_params;
139: } disk_info; /* XEN_FW_DISK_INFO */
140: struct {
141: uint8_t device; /* bios device number */
142: uint32_t mbr_signature; /* offset 0x1b8 in mbr */
143: } disk_mbr_signature; /* XEN_FW_DISK_MBR_SIGNATURE */
144: struct {
145: /* Int10, AX=4F15: Get EDID info. */
146: uint8_t capabilities;
147: uint8_t edid_transfer_time;
148: /* must refer to 128-byte buffer */
149: XEN_GUEST_HANDLE(uint8) edid;
150: } vbeddc_info; /* XEN_FW_VBEDDC_INFO */
151: } u;
152: };
153: typedef struct xenpf_firmware_info xenpf_firmware_info_t;
154: DEFINE_XEN_GUEST_HANDLE(xenpf_firmware_info_t);
155:
156: #define XENPF_enter_acpi_sleep 51
157: struct xenpf_enter_acpi_sleep {
158: /* IN variables */
159: uint16_t pm1a_cnt_val; /* PM1a control value. */
160: uint16_t pm1b_cnt_val; /* PM1b control value. */
161: uint32_t sleep_state; /* Which state to enter (Sn). */
162: uint32_t flags; /* Must be zero. */
163: };
164: typedef struct xenpf_enter_acpi_sleep xenpf_enter_acpi_sleep_t;
165: DEFINE_XEN_GUEST_HANDLE(xenpf_enter_acpi_sleep_t);
166:
167: #define XENPF_change_freq 52
168: struct xenpf_change_freq {
169: /* IN variables */
170: uint32_t flags; /* Must be zero. */
171: uint32_t cpu; /* Physical cpu. */
172: uint64_t freq; /* New frequency (Hz). */
173: };
174: typedef struct xenpf_change_freq xenpf_change_freq_t;
175: DEFINE_XEN_GUEST_HANDLE(xenpf_change_freq_t);
176:
177: /*
178: * Get idle times (nanoseconds since boot) for physical CPUs specified in the
179: * @cpumap_bitmap with range [0..@cpumap_nr_cpus-1]. The @idletime array is
180: * indexed by CPU number; only entries with the corresponding @cpumap_bitmap
181: * bit set are written to. On return, @cpumap_bitmap is modified so that any
182: * non-existent CPUs are cleared. Such CPUs have their @idletime array entry
183: * cleared.
184: */
185: #define XENPF_getidletime 53
186: struct xenpf_getidletime {
187: /* IN/OUT variables */
188: /* IN: CPUs to interrogate; OUT: subset of IN which are present */
189: XEN_GUEST_HANDLE(uint8) cpumap_bitmap;
190: /* IN variables */
191: /* Size of cpumap bitmap. */
192: uint32_t cpumap_nr_cpus;
193: /* Must be indexable for every cpu in cpumap_bitmap. */
194: XEN_GUEST_HANDLE(uint64) idletime;
195: /* OUT variables */
196: /* System time when the idletime snapshots were taken. */
197: uint64_t now;
198: };
199: typedef struct xenpf_getidletime xenpf_getidletime_t;
200: DEFINE_XEN_GUEST_HANDLE(xenpf_getidletime_t);
201:
202: #define XENPF_set_processor_pminfo 54
203:
204: /* ability bits */
205: #define XEN_PROCESSOR_PM_CX 1
206: #define XEN_PROCESSOR_PM_PX 2
207: #define XEN_PROCESSOR_PM_TX 4
208:
209: /* cmd type */
210: #define XEN_PM_CX 0
211: #define XEN_PM_PX 1
212: #define XEN_PM_TX 2
213:
214: /* Px sub info type */
215: #define XEN_PX_PCT 1
216: #define XEN_PX_PSS 2
217: #define XEN_PX_PPC 4
218: #define XEN_PX_PSD 8
219:
220: struct xen_power_register {
221: uint32_t space_id;
222: uint32_t bit_width;
223: uint32_t bit_offset;
224: uint32_t access_size;
225: uint64_t address;
226: };
227:
228: struct xen_processor_csd {
229: uint32_t domain; /* domain number of one dependent group */
230: uint32_t coord_type; /* coordination type */
231: uint32_t num; /* number of processors in same domain */
232: };
233: typedef struct xen_processor_csd xen_processor_csd_t;
234: DEFINE_XEN_GUEST_HANDLE(xen_processor_csd_t);
235:
236: struct xen_processor_cx {
237: struct xen_power_register reg; /* GAS for Cx trigger register */
238: uint8_t type; /* cstate value, c0: 0, c1: 1, ... */
239: uint32_t latency; /* worst latency (ms) to enter/exit this cstate */
240: uint32_t power; /* average power consumption(mW) */
241: uint32_t dpcnt; /* number of dependency entries */
242: XEN_GUEST_HANDLE(xen_processor_csd_t) dp; /* NULL if no dependency */
243: };
244: typedef struct xen_processor_cx xen_processor_cx_t;
245: DEFINE_XEN_GUEST_HANDLE(xen_processor_cx_t);
246:
247: struct xen_processor_flags {
248: uint32_t bm_control:1;
249: uint32_t bm_check:1;
250: uint32_t has_cst:1;
251: uint32_t power_setup_done:1;
252: uint32_t bm_rld_set:1;
253: };
254:
255: struct xen_processor_power {
256: uint32_t count; /* number of C state entries in array below */
257: struct xen_processor_flags flags; /* global flags of this processor */
258: XEN_GUEST_HANDLE(xen_processor_cx_t) states; /* supported c states */
259: };
260:
261: struct xen_pct_register {
262: uint8_t descriptor;
263: uint16_t length;
264: uint8_t space_id;
265: uint8_t bit_width;
266: uint8_t bit_offset;
267: uint8_t reserved;
268: uint64_t address;
269: };
270:
271: struct xen_processor_px {
272: uint64_t core_frequency; /* megahertz */
273: uint64_t power; /* milliWatts */
274: uint64_t transition_latency; /* microseconds */
275: uint64_t bus_master_latency; /* microseconds */
276: uint64_t control; /* control value */
277: uint64_t status; /* success indicator */
278: };
279: typedef struct xen_processor_px xen_processor_px_t;
280: DEFINE_XEN_GUEST_HANDLE(xen_processor_px_t);
281:
282: struct xen_psd_package {
283: uint64_t num_entries;
284: uint64_t revision;
285: uint64_t domain;
286: uint64_t coord_type;
287: uint64_t num_processors;
288: };
289:
290: struct xen_processor_performance {
291: uint32_t flags; /* flag for Px sub info type */
292: uint32_t platform_limit; /* Platform limitation on freq usage */
293: struct xen_pct_register control_register;
294: struct xen_pct_register status_register;
295: uint32_t state_count; /* total available performance states */
296: XEN_GUEST_HANDLE(xen_processor_px_t) states;
297: struct xen_psd_package domain_info;
298: uint32_t shared_type; /* coordination type of this processor */
299: };
300: typedef struct xen_processor_performance xen_processor_performance_t;
301: DEFINE_XEN_GUEST_HANDLE(xen_processor_performance_t);
302:
303: struct xenpf_set_processor_pminfo {
304: /* IN variables */
305: uint32_t id; /* ACPI CPU ID */
306: uint32_t type; /* {XEN_PM_CX, XEN_PM_PX} */
307: union {
308: struct xen_processor_power power;/* Cx: _CST/_CSD */
309: struct xen_processor_performance perf; /* Px: _PPC/_PCT/_PSS/_PSD */
310: };
311: };
312: typedef struct xenpf_set_processor_pminfo xenpf_set_processor_pminfo_t;
313: DEFINE_XEN_GUEST_HANDLE(xenpf_set_processor_pminfo_t);
314:
315: struct xen_platform_op {
316: uint32_t cmd;
317: uint32_t interface_version; /* XENPF_INTERFACE_VERSION */
318: union {
319: struct xenpf_settime settime;
320: struct xenpf_add_memtype add_memtype;
321: struct xenpf_del_memtype del_memtype;
322: struct xenpf_read_memtype read_memtype;
323: struct xenpf_microcode_update microcode;
324: struct xenpf_platform_quirk platform_quirk;
325: struct xenpf_firmware_info firmware_info;
326: struct xenpf_enter_acpi_sleep enter_acpi_sleep;
327: struct xenpf_change_freq change_freq;
328: struct xenpf_getidletime getidletime;
329: struct xenpf_set_processor_pminfo set_pminfo;
330: uint8_t pad[128];
331: } u;
332: };
333: typedef struct xen_platform_op xen_platform_op_t;
334: DEFINE_XEN_GUEST_HANDLE(xen_platform_op_t);
335:
336: #endif /* __XEN_PUBLIC_PLATFORM_H__ */
337:
338: /*
339: * Local variables:
340: * mode: C
341: * c-set-style: "BSD"
342: * c-basic-offset: 4
343: * tab-width: 4
344: * indent-tabs-mode: nil
345: * End:
346: */
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