Commit 0bd921a4 authored by Nuno Das Neves's avatar Nuno Das Neves Committed by Wei Liu
Browse files

hyperv: Add definitions for root partition driver to hv headers 



A few additional definitions are required for the mshv driver code
(to follow). Introduce those here and clean up a little bit while
at it.

Signed-off-by: default avatarNuno Das Neves <nunodasneves@linux.microsoft.com>
Reviewed-by: default avatarRoman Kisel <romank@linux.microsoft.com>
Reviewed-by: default avatarStanislav Kinsburskii <skinsburskii@linux.microsoft.com>
Reviewed-by: default avatarTianyu Lan <tiala@microsoft.com>
Link: https://lore.kernel.org/r/1741980536-3865-10-git-send-email-nunodasneves@linux.microsoft.com


Signed-off-by: default avatarWei Liu <wei.liu@kernel.org>
Message-ID: <1741980536-3865-10-git-send-email-nunodasneves@linux.microsoft.com>
parent e2575ffe

include/hyperv/hvgdk_mini.h

+67 −5
Original line number Diff line number Diff line
@@ -13,7 +13,7 @@ struct hv_u128 { 
	u64 high_part;

} __packed;



/* NOTE: when adding below, update hv_status_to_string() */

/* NOTE: when adding below, update hv_result_to_string() */

#define HV_STATUS_SUCCESS			    0x0

#define HV_STATUS_INVALID_HYPERCALL_CODE	    0x2

#define HV_STATUS_INVALID_HYPERCALL_INPUT	    0x3
@@ -51,6 +51,7 @@ struct hv_u128 { 
#define HV_HYP_PAGE_SHIFT		12

#define HV_HYP_PAGE_SIZE		BIT(HV_HYP_PAGE_SHIFT)

#define HV_HYP_PAGE_MASK		(~(HV_HYP_PAGE_SIZE - 1))

#define HV_HYP_LARGE_PAGE_SHIFT		21



#define HV_PARTITION_ID_INVALID		((u64)0)

#define HV_PARTITION_ID_SELF		((u64)-1)
@@ -374,6 +375,10 @@ union hv_hypervisor_version_info { 
#define HV_SHARED_GPA_BOUNDARY_ACTIVE			BIT(5)

#define HV_SHARED_GPA_BOUNDARY_BITS			GENMASK(11, 6)



/* HYPERV_CPUID_FEATURES.ECX bits. */

#define HV_VP_DISPATCH_INTERRUPT_INJECTION_AVAILABLE	BIT(9)

#define HV_VP_GHCB_ROOT_MAPPING_AVAILABLE		BIT(10)



enum hv_isolation_type {

	HV_ISOLATION_TYPE_NONE	= 0,	/* HV_PARTITION_ISOLATION_TYPE_NONE */

	HV_ISOLATION_TYPE_VBS	= 1,
@@ -436,10 +441,13 @@ union hv_vp_assist_msr_contents { /* HV_REGISTER_VP_ASSIST_PAGE */ 
#define HVCALL_WITHDRAW_MEMORY				0x0049

#define HVCALL_MAP_GPA_PAGES				0x004b

#define HVCALL_UNMAP_GPA_PAGES				0x004c

#define HVCALL_INSTALL_INTERCEPT			0x004d

#define HVCALL_CREATE_VP				0x004e

#define HVCALL_DELETE_VP				0x004f

#define HVCALL_GET_VP_REGISTERS				0x0050

#define HVCALL_SET_VP_REGISTERS				0x0051

#define HVCALL_TRANSLATE_VIRTUAL_ADDRESS		0x0052

#define HVCALL_CLEAR_VIRTUAL_INTERRUPT			0x0056

#define HVCALL_DELETE_PORT				0x0058

#define HVCALL_DISCONNECT_PORT				0x005b

#define HVCALL_POST_MESSAGE				0x005c
@@ -447,12 +455,15 @@ union hv_vp_assist_msr_contents { /* HV_REGISTER_VP_ASSIST_PAGE */ 
#define HVCALL_POST_DEBUG_DATA				0x0069

#define HVCALL_RETRIEVE_DEBUG_DATA			0x006a

#define HVCALL_RESET_DEBUG_SESSION			0x006b

#define HVCALL_MAP_STATS_PAGE				0x006c

#define HVCALL_UNMAP_STATS_PAGE				0x006d

#define HVCALL_ADD_LOGICAL_PROCESSOR			0x0076

#define HVCALL_GET_SYSTEM_PROPERTY			0x007b

#define HVCALL_MAP_DEVICE_INTERRUPT			0x007c

#define HVCALL_UNMAP_DEVICE_INTERRUPT			0x007d

#define HVCALL_RETARGET_INTERRUPT			0x007e

#define HVCALL_NOTIFY_PORT_RING_EMPTY			0x008b

#define HVCALL_REGISTER_INTERCEPT_RESULT		0x0091

#define HVCALL_ASSERT_VIRTUAL_INTERRUPT			0x0094

#define HVCALL_CREATE_PORT				0x0095

#define HVCALL_CONNECT_PORT				0x0096
@@ -460,12 +471,18 @@ union hv_vp_assist_msr_contents { /* HV_REGISTER_VP_ASSIST_PAGE */ 
#define HVCALL_GET_VP_ID_FROM_APIC_ID			0x009a

#define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_SPACE	0x00af

#define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_LIST	0x00b0

#define HVCALL_SIGNAL_EVENT_DIRECT			0x00c0

#define HVCALL_POST_MESSAGE_DIRECT			0x00c1

#define HVCALL_DISPATCH_VP				0x00c2

#define HVCALL_GET_GPA_PAGES_ACCESS_STATES		0x00c9

#define HVCALL_ACQUIRE_SPARSE_SPA_PAGE_HOST_ACCESS	0x00d7

#define HVCALL_RELEASE_SPARSE_SPA_PAGE_HOST_ACCESS	0x00d8

#define HVCALL_MODIFY_SPARSE_GPA_PAGE_HOST_VISIBILITY	0x00db

#define HVCALL_MAP_VP_STATE_PAGE			0x00e1

#define HVCALL_UNMAP_VP_STATE_PAGE			0x00e2

#define HVCALL_GET_VP_STATE				0x00e3

#define HVCALL_SET_VP_STATE				0x00e4

#define HVCALL_GET_VP_CPUID_VALUES			0x00f4

#define HVCALL_MMIO_READ				0x0106

#define HVCALL_MMIO_WRITE				0x0107
@@ -775,10 +792,10 @@ struct hv_message_page { 


/* Define timer message payload structure. */

struct hv_timer_message_payload {

	__u32 timer_index;

	__u32 reserved;

	__u64 expiration_time;	/* When the timer expired */

	__u64 delivery_time;	/* When the message was delivered */

	u32 timer_index;

	u32 reserved;

	u64 expiration_time;	/* When the timer expired */

	u64 delivery_time;	/* When the message was delivered */

} __packed;



struct hv_x64_segment_register {
@@ -807,6 +824,8 @@ struct hv_x64_table_register { 
	u64 base;

} __packed;



#define HV_NORMAL_VTL	0



union hv_input_vtl {

	u8 as_uint8;

	struct {
@@ -1325,6 +1344,49 @@ struct hv_retarget_device_interrupt { /* HV_INPUT_RETARGET_DEVICE_INTERRUPT */ 
	struct hv_device_interrupt_target int_target;

} __packed __aligned(8);



enum hv_intercept_type {

#if defined(CONFIG_X86)

	HV_INTERCEPT_TYPE_X64_IO_PORT			= 0x00000000,

	HV_INTERCEPT_TYPE_X64_MSR			= 0x00000001,

	HV_INTERCEPT_TYPE_X64_CPUID			= 0x00000002,

#endif

	HV_INTERCEPT_TYPE_EXCEPTION			= 0x00000003,

	/* Used to be HV_INTERCEPT_TYPE_REGISTER */

	HV_INTERCEPT_TYPE_RESERVED0			= 0x00000004,

	HV_INTERCEPT_TYPE_MMIO				= 0x00000005,

#if defined(CONFIG_X86)

	HV_INTERCEPT_TYPE_X64_GLOBAL_CPUID		= 0x00000006,

	HV_INTERCEPT_TYPE_X64_APIC_SMI			= 0x00000007,

#endif

	HV_INTERCEPT_TYPE_HYPERCALL			= 0x00000008,

#if defined(CONFIG_X86)

	HV_INTERCEPT_TYPE_X64_APIC_INIT_SIPI		= 0x00000009,

	HV_INTERCEPT_MC_UPDATE_PATCH_LEVEL_MSR_READ	= 0x0000000A,

	HV_INTERCEPT_TYPE_X64_APIC_WRITE		= 0x0000000B,

	HV_INTERCEPT_TYPE_X64_MSR_INDEX			= 0x0000000C,

#endif

	HV_INTERCEPT_TYPE_MAX,

	HV_INTERCEPT_TYPE_INVALID			= 0xFFFFFFFF,

};



union hv_intercept_parameters {

	/*  HV_INTERCEPT_PARAMETERS is defined to be an 8-byte field. */

	u64 as_uint64;

#if defined(CONFIG_X86)

	/* HV_INTERCEPT_TYPE_X64_IO_PORT */

	u16 io_port;

	/* HV_INTERCEPT_TYPE_X64_CPUID */

	u32 cpuid_index;

	/* HV_INTERCEPT_TYPE_X64_APIC_WRITE */

	u32 apic_write_mask;

	/* HV_INTERCEPT_TYPE_EXCEPTION */

	u16 exception_vector;

	/* HV_INTERCEPT_TYPE_X64_MSR_INDEX */

	u32 msr_index;

#endif

	/* N.B. Other intercept types do not have any parameters. */

};



/* Data structures for HVCALL_MMIO_READ and HVCALL_MMIO_WRITE */

#define HV_HYPERCALL_MMIO_MAX_DATA_LENGTH 64

include/hyperv/hvhdk.h

+126 −6
Original line number Diff line number Diff line
@@ -19,11 +19,24 @@ 


#define HV_VP_REGISTER_PAGE_VERSION_1	1u



#define HV_VP_REGISTER_PAGE_MAX_VECTOR_COUNT		7



union hv_vp_register_page_interrupt_vectors {

	u64 as_uint64;

	struct {

		u8 vector_count;

		u8 vector[HV_VP_REGISTER_PAGE_MAX_VECTOR_COUNT];

	} __packed;

};



struct hv_vp_register_page {

	u16 version;

	u8 isvalid;

	u8 rsvdz;

	u32 dirty;



#if IS_ENABLED(CONFIG_X86)



	union {

		struct {

			/* General purpose registers
@@ -95,6 +108,22 @@ struct hv_vp_register_page { 
	union hv_x64_pending_interruption_register pending_interruption;

	union hv_x64_interrupt_state_register interrupt_state;

	u64 instruction_emulation_hints;

	u64 xfem;



	/*

	 * Fields from this point are not included in the register page save chunk.

	 * The reserved field is intended to maintain alignment for unsaved fields.

	 */

	u8 reserved1[0x100];



	/*

	 * Interrupts injected as part of HvCallDispatchVp.

	 */

	union hv_vp_register_page_interrupt_vectors interrupt_vectors;



#elif IS_ENABLED(CONFIG_ARM64)

	/* Not yet supported in ARM */

#endif

} __packed;



#define HV_PARTITION_PROCESSOR_FEATURES_BANKS 2
@@ -299,6 +328,7 @@ union hv_partition_isolation_properties { 
#define HV_PARTITION_ISOLATION_HOST_TYPE_RESERVED   0x2



/* Note: Exo partition is enabled by default */

#define HV_PARTITION_CREATION_FLAG_GPA_SUPER_PAGES_ENABLED		BIT(4)

#define HV_PARTITION_CREATION_FLAG_EXO_PARTITION			BIT(8)

#define HV_PARTITION_CREATION_FLAG_LAPIC_ENABLED			BIT(13)

#define HV_PARTITION_CREATION_FLAG_INTERCEPT_MESSAGE_PAGE_ENABLED	BIT(19)
@@ -349,13 +379,23 @@ struct hv_input_set_partition_property { 
enum hv_vp_state_page_type {

	HV_VP_STATE_PAGE_REGISTERS = 0,

	HV_VP_STATE_PAGE_INTERCEPT_MESSAGE = 1,

	HV_VP_STATE_PAGE_GHCB = 2,

	HV_VP_STATE_PAGE_COUNT

};



struct hv_input_map_vp_state_page {

	u64 partition_id;

	u32 vp_index;

	u32 type; /* enum hv_vp_state_page_type */

	u16 type; /* enum hv_vp_state_page_type */

	union hv_input_vtl input_vtl;

	union {

		u8 as_uint8;

		struct {

			u8 map_location_provided : 1;

			u8 reserved : 7;

		};

	} flags;

	u64 requested_map_location;

} __packed;



struct hv_output_map_vp_state_page {
@@ -365,7 +405,14 @@ struct hv_output_map_vp_state_page { 
struct hv_input_unmap_vp_state_page {

	u64 partition_id;

	u32 vp_index;

	u32 type; /* enum hv_vp_state_page_type */

	u16 type; /* enum hv_vp_state_page_type */

	union hv_input_vtl input_vtl;

	u8 reserved0;

} __packed;



struct hv_x64_apic_eoi_message {

	u32 vp_index;

	u32 interrupt_vector;

} __packed;



struct hv_opaque_intercept_message {
@@ -515,6 +562,13 @@ struct hv_synthetic_timers_state { 
	u64 reserved[5];

} __packed;



struct hv_async_completion_message_payload {

	u64 partition_id;

	u32 status;

	u32 completion_count;

	u64 sub_status;

} __packed;



union hv_input_delete_vp {

	u64 as_uint64[2];

	struct {
@@ -649,6 +703,57 @@ struct hv_input_set_vp_state { 
	union hv_input_set_vp_state_data data[];

} __packed;



union hv_x64_vp_execution_state {

	u16 as_uint16;

	struct {

		u16 cpl:2;

		u16 cr0_pe:1;

		u16 cr0_am:1;

		u16 efer_lma:1;

		u16 debug_active:1;

		u16 interruption_pending:1;

		u16 vtl:4;

		u16 enclave_mode:1;

		u16 interrupt_shadow:1;

		u16 virtualization_fault_active:1;

		u16 reserved:2;

	} __packed;

};



struct hv_x64_intercept_message_header {

	u32 vp_index;

	u8 instruction_length:4;

	u8 cr8:4; /* Only set for exo partitions */

	u8 intercept_access_type;

	union hv_x64_vp_execution_state execution_state;

	struct hv_x64_segment_register cs_segment;

	u64 rip;

	u64 rflags;

} __packed;



union hv_x64_memory_access_info {

	u8 as_uint8;

	struct {

		u8 gva_valid:1;

		u8 gva_gpa_valid:1;

		u8 hypercall_output_pending:1;

		u8 tlb_locked_no_overlay:1;

		u8 reserved:4;

	} __packed;

};



struct hv_x64_memory_intercept_message {

	struct hv_x64_intercept_message_header header;

	u32 cache_type; /* enum hv_cache_type */

	u8 instruction_byte_count;

	union hv_x64_memory_access_info memory_access_info;

	u8 tpr_priority;

	u8 reserved1;

	u64 guest_virtual_address;

	u64 guest_physical_address;

	u8 instruction_bytes[16];

} __packed;



/*

 * Dispatch state for the VP communicated by the hypervisor to the

 * VP-dispatching thread in the root on return from HVCALL_DISPATCH_VP.
@@ -716,6 +821,7 @@ static_assert(sizeof(struct hv_vp_signal_pair_scheduler_message) == 
#define HV_DISPATCH_VP_FLAG_SKIP_VP_SPEC_FLUSH		0x8

#define HV_DISPATCH_VP_FLAG_SKIP_CALLER_SPEC_FLUSH	0x10

#define HV_DISPATCH_VP_FLAG_SKIP_CALLER_USER_SPEC_FLUSH	0x20

#define HV_DISPATCH_VP_FLAG_SCAN_INTERRUPT_INJECTION	0x40



struct hv_input_dispatch_vp {

	u64 partition_id;
@@ -730,4 +836,18 @@ struct hv_output_dispatch_vp { 
	u32 dispatch_event; /* enum hv_vp_dispatch_event */

} __packed;



struct hv_input_modify_sparse_spa_page_host_access {

	u32 host_access : 2;

	u32 reserved : 30;

	u32 flags;

	u64 partition_id;

	u64 spa_page_list[];

} __packed;



/* hv_input_modify_sparse_spa_page_host_access flags */

#define HV_MODIFY_SPA_PAGE_HOST_ACCESS_MAKE_EXCLUSIVE  0x1

#define HV_MODIFY_SPA_PAGE_HOST_ACCESS_MAKE_SHARED     0x2

#define HV_MODIFY_SPA_PAGE_HOST_ACCESS_LARGE_PAGE      0x4

#define HV_MODIFY_SPA_PAGE_HOST_ACCESS_HUGE_PAGE       0x8



#endif /* _HV_HVHDK_H */

include/hyperv/hvhdk_mini.h

+91 −0
Original line number Diff line number Diff line
@@ -36,6 +36,52 @@ enum hv_scheduler_type { 
	HV_SCHEDULER_TYPE_MAX

};



/* HV_STATS_AREA_TYPE */

enum hv_stats_area_type {

	HV_STATS_AREA_SELF = 0,

	HV_STATS_AREA_PARENT = 1,

	HV_STATS_AREA_INTERNAL = 2,

	HV_STATS_AREA_COUNT

};



enum hv_stats_object_type {

	HV_STATS_OBJECT_HYPERVISOR		= 0x00000001,

	HV_STATS_OBJECT_LOGICAL_PROCESSOR	= 0x00000002,

	HV_STATS_OBJECT_PARTITION		= 0x00010001,

	HV_STATS_OBJECT_VP			= 0x00010002

};



union hv_stats_object_identity {

	/* hv_stats_hypervisor */

	struct {

		u8 reserved[15];

		u8 stats_area_type;

	} __packed hv;



	/* hv_stats_logical_processor */

	struct {

		u32 lp_index;

		u8 reserved[11];

		u8 stats_area_type;

	} __packed lp;



	/* hv_stats_partition */

	struct {

		u64 partition_id;

		u8  reserved[7];

		u8  stats_area_type;

	} __packed partition;



	/* hv_stats_vp */

	struct {

		u64 partition_id;

		u32 vp_index;

		u16 flags;

		u8  reserved;

		u8  stats_area_type;

	} __packed vp;

};



enum hv_partition_property_code {

	/* Privilege properties */

	HV_PARTITION_PROPERTY_PRIVILEGE_FLAGS			= 0x00010000,
@@ -47,19 +93,45 @@ enum hv_partition_property_code { 


	/* Compatibility properties */

	HV_PARTITION_PROPERTY_PROCESSOR_XSAVE_FEATURES		= 0x00060002,

	HV_PARTITION_PROPERTY_XSAVE_STATES                      = 0x00060007,

	HV_PARTITION_PROPERTY_MAX_XSAVE_DATA_SIZE		= 0x00060008,

	HV_PARTITION_PROPERTY_PROCESSOR_CLOCK_FREQUENCY		= 0x00060009,

};



enum hv_snp_status {

	HV_SNP_STATUS_NONE = 0,

	HV_SNP_STATUS_AVAILABLE = 1,

	HV_SNP_STATUS_INCOMPATIBLE = 2,

	HV_SNP_STATUS_PSP_UNAVAILABLE = 3,

	HV_SNP_STATUS_PSP_INIT_FAILED = 4,

	HV_SNP_STATUS_PSP_BAD_FW_VERSION = 5,

	HV_SNP_STATUS_BAD_CONFIGURATION = 6,

	HV_SNP_STATUS_PSP_FW_UPDATE_IN_PROGRESS = 7,

	HV_SNP_STATUS_PSP_RB_INIT_FAILED = 8,

	HV_SNP_STATUS_PSP_PLATFORM_STATUS_FAILED = 9,

	HV_SNP_STATUS_PSP_INIT_LATE_FAILED = 10,

};



enum hv_system_property {

	/* Add more values when needed */

	HV_SYSTEM_PROPERTY_SCHEDULER_TYPE = 15,

	HV_DYNAMIC_PROCESSOR_FEATURE_PROPERTY = 21,

};



enum hv_dynamic_processor_feature_property {

	/* Add more values when needed */

	HV_X64_DYNAMIC_PROCESSOR_FEATURE_MAX_ENCRYPTED_PARTITIONS = 13,

	HV_X64_DYNAMIC_PROCESSOR_FEATURE_SNP_STATUS = 16,

};



struct hv_input_get_system_property {

	u32 property_id; /* enum hv_system_property */

	union {

		u32 as_uint32;

#if IS_ENABLED(CONFIG_X86)

		/* enum hv_dynamic_processor_feature_property */

		u32 hv_processor_feature;

#endif

		/* More fields to be filled in when needed */

	};

} __packed;
@@ -67,9 +139,28 @@ struct hv_input_get_system_property { 
struct hv_output_get_system_property {

	union {

		u32 scheduler_type; /* enum hv_scheduler_type */

#if IS_ENABLED(CONFIG_X86)

		u64 hv_processor_feature_value;

#endif

	};

} __packed;



struct hv_input_map_stats_page {

	u32 type; /* enum hv_stats_object_type */

	u32 padding;

	union hv_stats_object_identity identity;

} __packed;



struct hv_output_map_stats_page {

	u64 map_location;

} __packed;



struct hv_input_unmap_stats_page {

	u32 type; /* enum hv_stats_object_type */

	u32 padding;

	union hv_stats_object_identity identity;

} __packed;



struct hv_proximity_domain_flags {

	u32 proximity_preferred : 1;

	u32 reserved : 30;