diff options
Diffstat (limited to 'include/linux/hyperv.h')
| -rw-r--r-- | include/linux/hyperv.h | 353 |
1 files changed, 31 insertions, 322 deletions
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index 344883dce58..ab7359fde98 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -25,328 +25,11 @@ #ifndef _HYPERV_H #define _HYPERV_H -#include <linux/types.h> - -/* - * Framework version for util services. - */ -#define UTIL_FW_MINOR 0 - -#define UTIL_WS2K8_FW_MAJOR 1 -#define UTIL_WS2K8_FW_VERSION (UTIL_WS2K8_FW_MAJOR << 16 | UTIL_FW_MINOR) - -#define UTIL_FW_MAJOR 3 -#define UTIL_FW_VERSION (UTIL_FW_MAJOR << 16 | UTIL_FW_MINOR) - - -/* - * Implementation of host controlled snapshot of the guest. - */ - -#define VSS_OP_REGISTER 128 - -enum hv_vss_op { - VSS_OP_CREATE = 0, - VSS_OP_DELETE, - VSS_OP_HOT_BACKUP, - VSS_OP_GET_DM_INFO, - VSS_OP_BU_COMPLETE, - /* - * Following operations are only supported with IC version >= 5.0 - */ - VSS_OP_FREEZE, /* Freeze the file systems in the VM */ - VSS_OP_THAW, /* Unfreeze the file systems */ - VSS_OP_AUTO_RECOVER, - VSS_OP_COUNT /* Number of operations, must be last */ -}; - - -/* - * Header for all VSS messages. - */ -struct hv_vss_hdr { - __u8 operation; - __u8 reserved[7]; -} __attribute__((packed)); - - -/* - * Flag values for the hv_vss_check_feature. Linux supports only - * one value. - */ -#define VSS_HBU_NO_AUTO_RECOVERY 0x00000005 - -struct hv_vss_check_feature { - __u32 flags; -} __attribute__((packed)); - -struct hv_vss_check_dm_info { - __u32 flags; -} __attribute__((packed)); - -struct hv_vss_msg { - union { - struct hv_vss_hdr vss_hdr; - int error; - }; - union { - struct hv_vss_check_feature vss_cf; - struct hv_vss_check_dm_info dm_info; - }; -} __attribute__((packed)); - -/* - * An implementation of HyperV key value pair (KVP) functionality for Linux. - * - * - * Copyright (C) 2010, Novell, Inc. - * Author : K. Y. Srinivasan <ksrinivasan@novell.com> - * - */ - -/* - * Maximum value size - used for both key names and value data, and includes - * any applicable NULL terminators. - * - * Note: This limit is somewhat arbitrary, but falls easily within what is - * supported for all native guests (back to Win 2000) and what is reasonable - * for the IC KVP exchange functionality. Note that Windows Me/98/95 are - * limited to 255 character key names. - * - * MSDN recommends not storing data values larger than 2048 bytes in the - * registry. - * - * Note: This value is used in defining the KVP exchange message - this value - * cannot be modified without affecting the message size and compatibility. - */ - -/* - * bytes, including any null terminators - */ -#define HV_KVP_EXCHANGE_MAX_VALUE_SIZE (2048) - - -/* - * Maximum key size - the registry limit for the length of an entry name - * is 256 characters, including the null terminator - */ - -#define HV_KVP_EXCHANGE_MAX_KEY_SIZE (512) - -/* - * In Linux, we implement the KVP functionality in two components: - * 1) The kernel component which is packaged as part of the hv_utils driver - * is responsible for communicating with the host and responsible for - * implementing the host/guest protocol. 2) A user level daemon that is - * responsible for data gathering. - * - * Host/Guest Protocol: The host iterates over an index and expects the guest - * to assign a key name to the index and also return the value corresponding to - * the key. The host will have atmost one KVP transaction outstanding at any - * given point in time. The host side iteration stops when the guest returns - * an error. Microsoft has specified the following mapping of key names to - * host specified index: - * - * Index Key Name - * 0 FullyQualifiedDomainName - * 1 IntegrationServicesVersion - * 2 NetworkAddressIPv4 - * 3 NetworkAddressIPv6 - * 4 OSBuildNumber - * 5 OSName - * 6 OSMajorVersion - * 7 OSMinorVersion - * 8 OSVersion - * 9 ProcessorArchitecture - * - * The Windows host expects the Key Name and Key Value to be encoded in utf16. - * - * Guest Kernel/KVP Daemon Protocol: As noted earlier, we implement all of the - * data gathering functionality in a user mode daemon. The user level daemon - * is also responsible for binding the key name to the index as well. The - * kernel and user-level daemon communicate using a connector channel. - * - * The user mode component first registers with the - * the kernel component. Subsequently, the kernel component requests, data - * for the specified keys. In response to this message the user mode component - * fills in the value corresponding to the specified key. We overload the - * sequence field in the cn_msg header to define our KVP message types. - * - * - * The kernel component simply acts as a conduit for communication between the - * Windows host and the user-level daemon. The kernel component passes up the - * index received from the Host to the user-level daemon. If the index is - * valid (supported), the corresponding key as well as its - * value (both are strings) is returned. If the index is invalid - * (not supported), a NULL key string is returned. - */ - - -/* - * Registry value types. - */ - -#define REG_SZ 1 -#define REG_U32 4 -#define REG_U64 8 - -/* - * As we look at expanding the KVP functionality to include - * IP injection functionality, we need to maintain binary - * compatibility with older daemons. - * - * The KVP opcodes are defined by the host and it was unfortunate - * that I chose to treat the registration operation as part of the - * KVP operations defined by the host. - * Here is the level of compatibility - * (between the user level daemon and the kernel KVP driver) that we - * will implement: - * - * An older daemon will always be supported on a newer driver. - * A given user level daemon will require a minimal version of the - * kernel driver. - * If we cannot handle the version differences, we will fail gracefully - * (this can happen when we have a user level daemon that is more - * advanced than the KVP driver. - * - * We will use values used in this handshake for determining if we have - * workable user level daemon and the kernel driver. We begin by taking the - * registration opcode out of the KVP opcode namespace. We will however, - * maintain compatibility with the existing user-level daemon code. - */ - -/* - * Daemon code not supporting IP injection (legacy daemon). - */ - -#define KVP_OP_REGISTER 4 - -/* - * Daemon code supporting IP injection. - * The KVP opcode field is used to communicate the - * registration information; so define a namespace that - * will be distinct from the host defined KVP opcode. - */ - -#define KVP_OP_REGISTER1 100 - -enum hv_kvp_exchg_op { - KVP_OP_GET = 0, - KVP_OP_SET, - KVP_OP_DELETE, - KVP_OP_ENUMERATE, - KVP_OP_GET_IP_INFO, - KVP_OP_SET_IP_INFO, - KVP_OP_COUNT /* Number of operations, must be last. */ -}; - -enum hv_kvp_exchg_pool { - KVP_POOL_EXTERNAL = 0, - KVP_POOL_GUEST, - KVP_POOL_AUTO, - KVP_POOL_AUTO_EXTERNAL, - KVP_POOL_AUTO_INTERNAL, - KVP_POOL_COUNT /* Number of pools, must be last. */ -}; - -/* - * Some Hyper-V status codes. - */ +#include <uapi/linux/hyperv.h> -#define HV_S_OK 0x00000000 -#define HV_E_FAIL 0x80004005 -#define HV_S_CONT 0x80070103 -#define HV_ERROR_NOT_SUPPORTED 0x80070032 -#define HV_ERROR_MACHINE_LOCKED 0x800704F7 -#define HV_ERROR_DEVICE_NOT_CONNECTED 0x8007048F -#define HV_INVALIDARG 0x80070057 -#define HV_GUID_NOTFOUND 0x80041002 - -#define ADDR_FAMILY_NONE 0x00 -#define ADDR_FAMILY_IPV4 0x01 -#define ADDR_FAMILY_IPV6 0x02 - -#define MAX_ADAPTER_ID_SIZE 128 -#define MAX_IP_ADDR_SIZE 1024 -#define MAX_GATEWAY_SIZE 512 - - -struct hv_kvp_ipaddr_value { - __u16 adapter_id[MAX_ADAPTER_ID_SIZE]; - __u8 addr_family; - __u8 dhcp_enabled; - __u16 ip_addr[MAX_IP_ADDR_SIZE]; - __u16 sub_net[MAX_IP_ADDR_SIZE]; - __u16 gate_way[MAX_GATEWAY_SIZE]; - __u16 dns_addr[MAX_IP_ADDR_SIZE]; -} __attribute__((packed)); - - -struct hv_kvp_hdr { - __u8 operation; - __u8 pool; - __u16 pad; -} __attribute__((packed)); - -struct hv_kvp_exchg_msg_value { - __u32 value_type; - __u32 key_size; - __u32 value_size; - __u8 key[HV_KVP_EXCHANGE_MAX_KEY_SIZE]; - union { - __u8 value[HV_KVP_EXCHANGE_MAX_VALUE_SIZE]; - __u32 value_u32; - __u64 value_u64; - }; -} __attribute__((packed)); - -struct hv_kvp_msg_enumerate { - __u32 index; - struct hv_kvp_exchg_msg_value data; -} __attribute__((packed)); - -struct hv_kvp_msg_get { - struct hv_kvp_exchg_msg_value data; -}; - -struct hv_kvp_msg_set { - struct hv_kvp_exchg_msg_value data; -}; - -struct hv_kvp_msg_delete { - __u32 key_size; - __u8 key[HV_KVP_EXCHANGE_MAX_KEY_SIZE]; -}; - -struct hv_kvp_register { - __u8 version[HV_KVP_EXCHANGE_MAX_KEY_SIZE]; -}; - -struct hv_kvp_msg { - union { - struct hv_kvp_hdr kvp_hdr; - int error; - }; - union { - struct hv_kvp_msg_get kvp_get; - struct hv_kvp_msg_set kvp_set; - struct hv_kvp_msg_delete kvp_delete; - struct hv_kvp_msg_enumerate kvp_enum_data; - struct hv_kvp_ipaddr_value kvp_ip_val; - struct hv_kvp_register kvp_register; - } body; -} __attribute__((packed)); - -struct hv_kvp_ip_msg { - __u8 operation; - __u8 pool; - struct hv_kvp_ipaddr_value kvp_ip_val; -} __attribute__((packed)); - -#ifdef __KERNEL__ +#include <linux/types.h> #include <linux/scatterlist.h> #include <linux/list.h> -#include <linux/uuid.h> #include <linux/timer.h> #include <linux/workqueue.h> #include <linux/completion.h> @@ -354,7 +37,7 @@ struct hv_kvp_ip_msg { #include <linux/mod_devicetable.h> -#define MAX_PAGE_BUFFER_COUNT 19 +#define MAX_PAGE_BUFFER_COUNT 32 #define MAX_MULTIPAGE_BUFFER_COUNT 32 /* 128K */ #pragma pack(push, 1) @@ -1043,6 +726,10 @@ struct vmbus_channel { * This will be NULL for the primary channel. */ struct vmbus_channel *primary_channel; + /* + * Support per-channel state for use by vmbus drivers. + */ + void *per_channel_state; }; static inline void set_channel_read_state(struct vmbus_channel *c, bool state) @@ -1050,6 +737,16 @@ static inline void set_channel_read_state(struct vmbus_channel *c, bool state) c->batched_reading = state; } +static inline void set_per_channel_state(struct vmbus_channel *c, void *s) +{ + c->per_channel_state = s; +} + +static inline void *get_per_channel_state(struct vmbus_channel *c) +{ + return c->per_channel_state; +} + void vmbus_onmessage(void *context); int vmbus_request_offers(void); @@ -1118,7 +815,7 @@ extern int vmbus_open(struct vmbus_channel *channel, extern void vmbus_close(struct vmbus_channel *channel); extern int vmbus_sendpacket(struct vmbus_channel *channel, - const void *buffer, + void *buffer, u32 bufferLen, u64 requestid, enum vmbus_packet_type type, @@ -1352,6 +1049,17 @@ void vmbus_driver_unregister(struct hv_driver *hv_driver); } /* + * Guest File Copy Service + * {34D14BE3-DEE4-41c8-9AE7-6B174977C192} + */ + +#define HV_FCOPY_GUID \ + .guid = { \ + 0xE3, 0x4B, 0xD1, 0x34, 0xE4, 0xDE, 0xC8, 0x41, \ + 0x9A, 0xE7, 0x6B, 0x17, 0x49, 0x77, 0xC1, 0x92 \ + } + +/* * Common header for Hyper-V ICs */ @@ -1459,11 +1167,12 @@ int hv_vss_init(struct hv_util_service *); void hv_vss_deinit(void); void hv_vss_onchannelcallback(void *); +extern struct resource hyperv_mmio; + /* * Negotiated version with the Host. */ extern __u32 vmbus_proto_version; -#endif /* __KERNEL__ */ #endif /* _HYPERV_H */ |