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Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
[karo-tx-linux.git] / arch / x86 / include / uapi / asm / hyperv.h
1 #ifndef _ASM_X86_HYPERV_H
2 #define _ASM_X86_HYPERV_H
3
4 #include <linux/types.h>
5
6 /*
7  * The below CPUID leaves are present if VersionAndFeatures.HypervisorPresent
8  * is set by CPUID(HvCpuIdFunctionVersionAndFeatures).
9  */
10 #define HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS   0x40000000
11 #define HYPERV_CPUID_INTERFACE                  0x40000001
12 #define HYPERV_CPUID_VERSION                    0x40000002
13 #define HYPERV_CPUID_FEATURES                   0x40000003
14 #define HYPERV_CPUID_ENLIGHTMENT_INFO           0x40000004
15 #define HYPERV_CPUID_IMPLEMENT_LIMITS           0x40000005
16
17 #define HYPERV_HYPERVISOR_PRESENT_BIT           0x80000000
18 #define HYPERV_CPUID_MIN                        0x40000005
19 #define HYPERV_CPUID_MAX                        0x4000ffff
20
21 /*
22  * Feature identification. EAX indicates which features are available
23  * to the partition based upon the current partition privileges.
24  */
25
26 /* VP Runtime (HV_X64_MSR_VP_RUNTIME) available */
27 #define HV_X64_MSR_VP_RUNTIME_AVAILABLE         (1 << 0)
28 /* Partition Reference Counter (HV_X64_MSR_TIME_REF_COUNT) available*/
29 #define HV_X64_MSR_TIME_REF_COUNT_AVAILABLE     (1 << 1)
30 /* Partition reference TSC MSR is available */
31 #define HV_X64_MSR_REFERENCE_TSC_AVAILABLE              (1 << 9)
32
33 /* A partition's reference time stamp counter (TSC) page */
34 #define HV_X64_MSR_REFERENCE_TSC                0x40000021
35
36 /*
37  * There is a single feature flag that signifies the presence of the MSR
38  * that can be used to retrieve both the local APIC Timer frequency as
39  * well as the TSC frequency.
40  */
41
42 /* Local APIC timer frequency MSR (HV_X64_MSR_APIC_FREQUENCY) is available */
43 #define HV_X64_MSR_APIC_FREQUENCY_AVAILABLE (1 << 11)
44
45 /* TSC frequency MSR (HV_X64_MSR_TSC_FREQUENCY) is available */
46 #define HV_X64_MSR_TSC_FREQUENCY_AVAILABLE (1 << 11)
47
48 /*
49  * Basic SynIC MSRs (HV_X64_MSR_SCONTROL through HV_X64_MSR_EOM
50  * and HV_X64_MSR_SINT0 through HV_X64_MSR_SINT15) available
51  */
52 #define HV_X64_MSR_SYNIC_AVAILABLE              (1 << 2)
53 /*
54  * Synthetic Timer MSRs (HV_X64_MSR_STIMER0_CONFIG through
55  * HV_X64_MSR_STIMER3_COUNT) available
56  */
57 #define HV_X64_MSR_SYNTIMER_AVAILABLE           (1 << 3)
58 /*
59  * APIC access MSRs (HV_X64_MSR_EOI, HV_X64_MSR_ICR and HV_X64_MSR_TPR)
60  * are available
61  */
62 #define HV_X64_MSR_APIC_ACCESS_AVAILABLE        (1 << 4)
63 /* Hypercall MSRs (HV_X64_MSR_GUEST_OS_ID and HV_X64_MSR_HYPERCALL) available*/
64 #define HV_X64_MSR_HYPERCALL_AVAILABLE          (1 << 5)
65 /* Access virtual processor index MSR (HV_X64_MSR_VP_INDEX) available*/
66 #define HV_X64_MSR_VP_INDEX_AVAILABLE           (1 << 6)
67 /* Virtual system reset MSR (HV_X64_MSR_RESET) is available*/
68 #define HV_X64_MSR_RESET_AVAILABLE              (1 << 7)
69  /*
70   * Access statistics pages MSRs (HV_X64_MSR_STATS_PARTITION_RETAIL_PAGE,
71   * HV_X64_MSR_STATS_PARTITION_INTERNAL_PAGE, HV_X64_MSR_STATS_VP_RETAIL_PAGE,
72   * HV_X64_MSR_STATS_VP_INTERNAL_PAGE) available
73   */
74 #define HV_X64_MSR_STAT_PAGES_AVAILABLE         (1 << 8)
75
76 /* Crash MSR available */
77 #define HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE (1 << 10)
78
79 /*
80  * Feature identification: EBX indicates which flags were specified at
81  * partition creation. The format is the same as the partition creation
82  * flag structure defined in section Partition Creation Flags.
83  */
84 #define HV_X64_CREATE_PARTITIONS                (1 << 0)
85 #define HV_X64_ACCESS_PARTITION_ID              (1 << 1)
86 #define HV_X64_ACCESS_MEMORY_POOL               (1 << 2)
87 #define HV_X64_ADJUST_MESSAGE_BUFFERS           (1 << 3)
88 #define HV_X64_POST_MESSAGES                    (1 << 4)
89 #define HV_X64_SIGNAL_EVENTS                    (1 << 5)
90 #define HV_X64_CREATE_PORT                      (1 << 6)
91 #define HV_X64_CONNECT_PORT                     (1 << 7)
92 #define HV_X64_ACCESS_STATS                     (1 << 8)
93 #define HV_X64_DEBUGGING                        (1 << 11)
94 #define HV_X64_CPU_POWER_MANAGEMENT             (1 << 12)
95 #define HV_X64_CONFIGURE_PROFILER               (1 << 13)
96
97 /*
98  * Feature identification. EDX indicates which miscellaneous features
99  * are available to the partition.
100  */
101 /* The MWAIT instruction is available (per section MONITOR / MWAIT) */
102 #define HV_X64_MWAIT_AVAILABLE                          (1 << 0)
103 /* Guest debugging support is available */
104 #define HV_X64_GUEST_DEBUGGING_AVAILABLE                (1 << 1)
105 /* Performance Monitor support is available*/
106 #define HV_X64_PERF_MONITOR_AVAILABLE                   (1 << 2)
107 /* Support for physical CPU dynamic partitioning events is available*/
108 #define HV_X64_CPU_DYNAMIC_PARTITIONING_AVAILABLE       (1 << 3)
109 /*
110  * Support for passing hypercall input parameter block via XMM
111  * registers is available
112  */
113 #define HV_X64_HYPERCALL_PARAMS_XMM_AVAILABLE           (1 << 4)
114 /* Support for a virtual guest idle state is available */
115 #define HV_X64_GUEST_IDLE_STATE_AVAILABLE               (1 << 5)
116 /* Guest crash data handler available */
117 #define HV_X64_GUEST_CRASH_MSR_AVAILABLE                (1 << 10)
118
119 /*
120  * Implementation recommendations. Indicates which behaviors the hypervisor
121  * recommends the OS implement for optimal performance.
122  */
123  /*
124   * Recommend using hypercall for address space switches rather
125   * than MOV to CR3 instruction
126   */
127 #define HV_X64_MWAIT_RECOMMENDED                (1 << 0)
128 /* Recommend using hypercall for local TLB flushes rather
129  * than INVLPG or MOV to CR3 instructions */
130 #define HV_X64_LOCAL_TLB_FLUSH_RECOMMENDED      (1 << 1)
131 /*
132  * Recommend using hypercall for remote TLB flushes rather
133  * than inter-processor interrupts
134  */
135 #define HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED     (1 << 2)
136 /*
137  * Recommend using MSRs for accessing APIC registers
138  * EOI, ICR and TPR rather than their memory-mapped counterparts
139  */
140 #define HV_X64_APIC_ACCESS_RECOMMENDED          (1 << 3)
141 /* Recommend using the hypervisor-provided MSR to initiate a system RESET */
142 #define HV_X64_SYSTEM_RESET_RECOMMENDED         (1 << 4)
143 /*
144  * Recommend using relaxed timing for this partition. If used,
145  * the VM should disable any watchdog timeouts that rely on the
146  * timely delivery of external interrupts
147  */
148 #define HV_X64_RELAXED_TIMING_RECOMMENDED       (1 << 5)
149
150 /*
151  * Crash notification flag.
152  */
153 #define HV_CRASH_CTL_CRASH_NOTIFY (1ULL << 63)
154
155 /* MSR used to identify the guest OS. */
156 #define HV_X64_MSR_GUEST_OS_ID                  0x40000000
157
158 /* MSR used to setup pages used to communicate with the hypervisor. */
159 #define HV_X64_MSR_HYPERCALL                    0x40000001
160
161 /* MSR used to provide vcpu index */
162 #define HV_X64_MSR_VP_INDEX                     0x40000002
163
164 /* MSR used to reset the guest OS. */
165 #define HV_X64_MSR_RESET                        0x40000003
166
167 /* MSR used to provide vcpu runtime in 100ns units */
168 #define HV_X64_MSR_VP_RUNTIME                   0x40000010
169
170 /* MSR used to read the per-partition time reference counter */
171 #define HV_X64_MSR_TIME_REF_COUNT               0x40000020
172
173 /* MSR used to retrieve the TSC frequency */
174 #define HV_X64_MSR_TSC_FREQUENCY                0x40000022
175
176 /* MSR used to retrieve the local APIC timer frequency */
177 #define HV_X64_MSR_APIC_FREQUENCY               0x40000023
178
179 /* Define the virtual APIC registers */
180 #define HV_X64_MSR_EOI                          0x40000070
181 #define HV_X64_MSR_ICR                          0x40000071
182 #define HV_X64_MSR_TPR                          0x40000072
183 #define HV_X64_MSR_APIC_ASSIST_PAGE             0x40000073
184
185 /* Define synthetic interrupt controller model specific registers. */
186 #define HV_X64_MSR_SCONTROL                     0x40000080
187 #define HV_X64_MSR_SVERSION                     0x40000081
188 #define HV_X64_MSR_SIEFP                        0x40000082
189 #define HV_X64_MSR_SIMP                         0x40000083
190 #define HV_X64_MSR_EOM                          0x40000084
191 #define HV_X64_MSR_SINT0                        0x40000090
192 #define HV_X64_MSR_SINT1                        0x40000091
193 #define HV_X64_MSR_SINT2                        0x40000092
194 #define HV_X64_MSR_SINT3                        0x40000093
195 #define HV_X64_MSR_SINT4                        0x40000094
196 #define HV_X64_MSR_SINT5                        0x40000095
197 #define HV_X64_MSR_SINT6                        0x40000096
198 #define HV_X64_MSR_SINT7                        0x40000097
199 #define HV_X64_MSR_SINT8                        0x40000098
200 #define HV_X64_MSR_SINT9                        0x40000099
201 #define HV_X64_MSR_SINT10                       0x4000009A
202 #define HV_X64_MSR_SINT11                       0x4000009B
203 #define HV_X64_MSR_SINT12                       0x4000009C
204 #define HV_X64_MSR_SINT13                       0x4000009D
205 #define HV_X64_MSR_SINT14                       0x4000009E
206 #define HV_X64_MSR_SINT15                       0x4000009F
207
208 /*
209  * Synthetic Timer MSRs. Four timers per vcpu.
210  */
211 #define HV_X64_MSR_STIMER0_CONFIG               0x400000B0
212 #define HV_X64_MSR_STIMER0_COUNT                0x400000B1
213 #define HV_X64_MSR_STIMER1_CONFIG               0x400000B2
214 #define HV_X64_MSR_STIMER1_COUNT                0x400000B3
215 #define HV_X64_MSR_STIMER2_CONFIG               0x400000B4
216 #define HV_X64_MSR_STIMER2_COUNT                0x400000B5
217 #define HV_X64_MSR_STIMER3_CONFIG               0x400000B6
218 #define HV_X64_MSR_STIMER3_COUNT                0x400000B7
219
220 /* Hyper-V guest crash notification MSR's */
221 #define HV_X64_MSR_CRASH_P0                     0x40000100
222 #define HV_X64_MSR_CRASH_P1                     0x40000101
223 #define HV_X64_MSR_CRASH_P2                     0x40000102
224 #define HV_X64_MSR_CRASH_P3                     0x40000103
225 #define HV_X64_MSR_CRASH_P4                     0x40000104
226 #define HV_X64_MSR_CRASH_CTL                    0x40000105
227 #define HV_X64_MSR_CRASH_CTL_NOTIFY             (1ULL << 63)
228 #define HV_X64_MSR_CRASH_PARAMS         \
229                 (1 + (HV_X64_MSR_CRASH_P4 - HV_X64_MSR_CRASH_P0))
230
231 #define HV_X64_MSR_HYPERCALL_ENABLE             0x00000001
232 #define HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT 12
233 #define HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_MASK  \
234                 (~((1ull << HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT) - 1))
235
236 /* Declare the various hypercall operations. */
237 #define HVCALL_NOTIFY_LONG_SPIN_WAIT            0x0008
238 #define HVCALL_POST_MESSAGE                     0x005c
239 #define HVCALL_SIGNAL_EVENT                     0x005d
240
241 #define HV_X64_MSR_APIC_ASSIST_PAGE_ENABLE              0x00000001
242 #define HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT       12
243 #define HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_MASK        \
244                 (~((1ull << HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT) - 1))
245
246 #define HV_X64_MSR_TSC_REFERENCE_ENABLE         0x00000001
247 #define HV_X64_MSR_TSC_REFERENCE_ADDRESS_SHIFT  12
248
249 #define HV_PROCESSOR_POWER_STATE_C0             0
250 #define HV_PROCESSOR_POWER_STATE_C1             1
251 #define HV_PROCESSOR_POWER_STATE_C2             2
252 #define HV_PROCESSOR_POWER_STATE_C3             3
253
254 /* hypercall status code */
255 #define HV_STATUS_SUCCESS                       0
256 #define HV_STATUS_INVALID_HYPERCALL_CODE        2
257 #define HV_STATUS_INVALID_HYPERCALL_INPUT       3
258 #define HV_STATUS_INVALID_ALIGNMENT             4
259 #define HV_STATUS_INSUFFICIENT_MEMORY           11
260 #define HV_STATUS_INVALID_CONNECTION_ID         18
261 #define HV_STATUS_INSUFFICIENT_BUFFERS          19
262
263 typedef struct _HV_REFERENCE_TSC_PAGE {
264         __u32 tsc_sequence;
265         __u32 res1;
266         __u64 tsc_scale;
267         __s64 tsc_offset;
268 } HV_REFERENCE_TSC_PAGE, *PHV_REFERENCE_TSC_PAGE;
269
270 /* Define the number of synthetic interrupt sources. */
271 #define HV_SYNIC_SINT_COUNT             (16)
272 /* Define the expected SynIC version. */
273 #define HV_SYNIC_VERSION_1              (0x1)
274
275 #define HV_SYNIC_CONTROL_ENABLE         (1ULL << 0)
276 #define HV_SYNIC_SIMP_ENABLE            (1ULL << 0)
277 #define HV_SYNIC_SIEFP_ENABLE           (1ULL << 0)
278 #define HV_SYNIC_SINT_MASKED            (1ULL << 16)
279 #define HV_SYNIC_SINT_AUTO_EOI          (1ULL << 17)
280 #define HV_SYNIC_SINT_VECTOR_MASK       (0xFF)
281
282 #define HV_SYNIC_STIMER_COUNT           (4)
283
284 /* Define synthetic interrupt controller message constants. */
285 #define HV_MESSAGE_SIZE                 (256)
286 #define HV_MESSAGE_PAYLOAD_BYTE_COUNT   (240)
287 #define HV_MESSAGE_PAYLOAD_QWORD_COUNT  (30)
288
289 /* Define hypervisor message types. */
290 enum hv_message_type {
291         HVMSG_NONE                      = 0x00000000,
292
293         /* Memory access messages. */
294         HVMSG_UNMAPPED_GPA              = 0x80000000,
295         HVMSG_GPA_INTERCEPT             = 0x80000001,
296
297         /* Timer notification messages. */
298         HVMSG_TIMER_EXPIRED                     = 0x80000010,
299
300         /* Error messages. */
301         HVMSG_INVALID_VP_REGISTER_VALUE = 0x80000020,
302         HVMSG_UNRECOVERABLE_EXCEPTION   = 0x80000021,
303         HVMSG_UNSUPPORTED_FEATURE               = 0x80000022,
304
305         /* Trace buffer complete messages. */
306         HVMSG_EVENTLOG_BUFFERCOMPLETE   = 0x80000040,
307
308         /* Platform-specific processor intercept messages. */
309         HVMSG_X64_IOPORT_INTERCEPT              = 0x80010000,
310         HVMSG_X64_MSR_INTERCEPT         = 0x80010001,
311         HVMSG_X64_CPUID_INTERCEPT               = 0x80010002,
312         HVMSG_X64_EXCEPTION_INTERCEPT   = 0x80010003,
313         HVMSG_X64_APIC_EOI                      = 0x80010004,
314         HVMSG_X64_LEGACY_FP_ERROR               = 0x80010005
315 };
316
317 /* Define synthetic interrupt controller message flags. */
318 union hv_message_flags {
319         __u8 asu8;
320         struct {
321                 __u8 msg_pending:1;
322                 __u8 reserved:7;
323         };
324 };
325
326 /* Define port identifier type. */
327 union hv_port_id {
328         __u32 asu32;
329         struct {
330                 __u32 id:24;
331                 __u32 reserved:8;
332         } u;
333 };
334
335 /* Define synthetic interrupt controller message header. */
336 struct hv_message_header {
337         __u32 message_type;
338         __u8 payload_size;
339         union hv_message_flags message_flags;
340         __u8 reserved[2];
341         union {
342                 __u64 sender;
343                 union hv_port_id port;
344         };
345 };
346
347 /* Define synthetic interrupt controller message format. */
348 struct hv_message {
349         struct hv_message_header header;
350         union {
351                 __u64 payload[HV_MESSAGE_PAYLOAD_QWORD_COUNT];
352         } u;
353 };
354
355 /* Define the synthetic interrupt message page layout. */
356 struct hv_message_page {
357         struct hv_message sint_message[HV_SYNIC_SINT_COUNT];
358 };
359
360 /* Define timer message payload structure. */
361 struct hv_timer_message_payload {
362         __u32 timer_index;
363         __u32 reserved;
364         __u64 expiration_time;  /* When the timer expired */
365         __u64 delivery_time;    /* When the message was delivered */
366 };
367
368 #define HV_STIMER_ENABLE                (1ULL << 0)
369 #define HV_STIMER_PERIODIC              (1ULL << 1)
370 #define HV_STIMER_LAZY                  (1ULL << 2)
371 #define HV_STIMER_AUTOENABLE            (1ULL << 3)
372 #define HV_STIMER_SINT(config)          (__u8)(((config) >> 16) & 0x0F)
373
374 #endif