include/asm-generic/hyperv-tlfs.h

1 /* SPDX-License-Identifier: GPL-2.0 */
4  * This file contains definitions from Hyper-V Hypervisor Top-Level Functional
6  * https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/reference/tlfs
17  * While not explicitly listed in the TLFS, Hyper-V always runs with a page size
18  * of 4096. These definitions are used when communicating with Hyper-V using
23 #define HV_HYP_PAGE_SIZE       BIT(HV_HYP_PAGE_SHIFT)
24 #define HV_HYP_PAGE_MASK       (~(HV_HYP_PAGE_SIZE - 1))
27  * Hyper-V provides two categories of flags relevant to guest VMs.  The
29  * to guests on this particular instance of Hyper-V. The "Features"
35  * architecture specific portion of hyperv-tlfs.h. Some of these flags exist
36  * on multiple architectures, but the bit positions are different so they
37  * cannot appear in the generic portion of hyperv-tlfs.h.
42  * the architecture specific portion of hyperv-tlfs.h.
50 #define HV_MSR_VP_RUNTIME_AVAILABLE		BIT(0)
52 #define HV_MSR_TIME_REF_COUNT_AVAILABLE		BIT(1)
54 #define HV_MSR_SYNIC_AVAILABLE			BIT(2)
56 #define HV_MSR_SYNTIMER_AVAILABLE		BIT(3)
58 #define HV_MSR_APIC_ACCESS_AVAILABLE		BIT(4)
60 #define HV_MSR_HYPERCALL_AVAILABLE		BIT(5)
62 #define HV_MSR_VP_INDEX_AVAILABLE		BIT(6)
64 #define HV_MSR_RESET_AVAILABLE			BIT(7)
66 #define HV_MSR_STAT_PAGES_AVAILABLE		BIT(8)
68 #define HV_MSR_REFERENCE_TSC_AVAILABLE		BIT(9)
70 #define HV_MSR_GUEST_IDLE_AVAILABLE		BIT(10)
72 #define HV_ACCESS_FREQUENCY_MSRS		BIT(11)
74 #define HV_ACCESS_REENLIGHTENMENT		BIT(13)
76 #define HV_ACCESS_TSC_INVARIANT			BIT(15)
81 #define HV_CREATE_PARTITIONS			BIT(0)
82 #define HV_ACCESS_PARTITION_ID			BIT(1)
83 #define HV_ACCESS_MEMORY_POOL			BIT(2)
84 #define HV_ADJUST_MESSAGE_BUFFERS		BIT(3)
85 #define HV_POST_MESSAGES			BIT(4)
86 #define HV_SIGNAL_EVENTS			BIT(5)
87 #define HV_CREATE_PORT				BIT(6)
88 #define HV_CONNECT_PORT				BIT(7)
89 #define HV_ACCESS_STATS				BIT(8)
90 #define HV_DEBUGGING				BIT(11)
91 #define HV_CPU_MANAGEMENT			BIT(12)
92 #define HV_ENABLE_EXTENDED_HYPERCALLS		BIT(20)
93 #define HV_ISOLATION				BIT(22)
108 		u64 enable:1;
116  * The guest ID is a 64 bit entity and the structure of this ID is
117  * specified in the Hyper-V specification:
119  * msdn.microsoft.com/en-us/library/windows/hardware/ff542653%28v=vs.85%29.aspx
124  * on Hyper-V. The implementation here conforms to this yet
128  * Bit(s)
129  * 63 - Indicates if the OS is Open Source or not; 1 is Open Source
130  * 62:56 - Os Type; Linux is 0x100
131  * 55:48 - Distro specific identification
132  * 47:16 - Linux kernel version number
133  * 15:0  - Distro specific identification
181 #define HV_FLUSH_ALL_PROCESSORS			BIT(0)
182 #define HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES	BIT(1)
183 #define HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY	BIT(2)
184 #define HV_FLUSH_USE_EXTENDED_RANGE_FORMAT	BIT(3)
187 #define HV_EXT_CAPABILITY_MEMORY_COLD_DISCARD_HINT BIT(8)
194 #define HV_PARTITION_ID_SELF		((u64)-1)
195 #define HV_VP_INDEX_SELF		((u32)-2)
198 #define HV_HYPERCALL_FAST_BIT		BIT(16)
230  * The Hyper-V TimeRefCount register and the TSC
239 /* Valid SynIC vectors are 16-255. */
242 #define HV_SYNIC_CONTROL_ENABLE		(1ULL << 0)
243 #define HV_SYNIC_SIMP_ENABLE		(1ULL << 0)
244 #define HV_SYNIC_SIEFP_ENABLE		(1ULL << 0)
245 #define HV_SYNIC_SINT_MASKED		(1ULL << 16)
246 #define HV_SYNIC_SINT_AUTO_EOI		(1ULL << 17)
258  * are x86/x64 specific, but there's no good way to separate
259  * them out into the arch-specific version of hyperv-tlfs.h
261  * Keeping them all in the arch neutral hyperv-tlfs.h seems
282 	/* Platform-specific processor intercept messages. */
295 		__u8 msg_pending:1;
353 		u64 enable:1;
354 		u64 periodic:1;
355 		u64 lazy:1;
356 		u64 auto_enable:1;
358 		u64 direct_mode:1;
375 		u64 enable:1;
386 		u64 masked:1;
387 		u64 auto_eoi:1;
388 		u64 polling:1;
397 		u64 simp_enabled:1;
407 		u64 siefp_enabled:1;
445  *  HV_MAX_FLUSH_PAGES = "additional_pages" + 1. It's limited
450 #define HV_GPA_PAGE_RANGE_PAGE_SIZE_1GB		1
457 		u64 largepage:1;
462 		u64 page_size:1;
473 #define HV_MAX_FLUSH_REP_COUNT ((HV_HYP_PAGE_SIZE - 2 * sizeof(u64)) /	\
510 	u32 proximity_preferred : 1;
512 	u32 proximity_info_valid : 1;
544     HvSubnodeSocket = 1,
548     HvSubnodeInvalid = -1
563 	HV_INTERRUPT_SOURCE_MSI = 1, /* MSI and MSI-X */
573 		u32 destination_mode:1;
574 		u32 delivery_status:1;
575 		u32 interrupt_polarity:1;
576 		u32 remote_irr:1;
577 		u32 trigger_mode:1;
578 		u32 interrupt_mask:1;
603 #define HV_DEVICE_INTERRUPT_TARGET_MULTICAST		1
624  * These Hyper-V registers provide information equivalent to the CPUID
625  * instruction on x86/x64.
632  * Synthetic register definitions equivalent to MSRs on x86/x64
704 	HV_DEVICE_TYPE_PCI = 1,
756 		u16 source_shadow:1;
783 	HV_INTERRUPT_TRIGGER_MODE_LEVEL = 1,
843 	((HV_HYP_PAGE_SIZE - sizeof(struct hv_memory_hint)) / \