47575345ba
This paves way to nuke the hv_device, which is actually an unncessary indirection. MFC after: 1 week Sponsored by: Microsoft OSTC Differential Revision: https://reviews.freebsd.org/D7032
746 lines
20 KiB
C
746 lines
20 KiB
C
/*-
|
|
* Copyright (c) 2009-2012,2016 Microsoft Corp.
|
|
* Copyright (c) 2012 NetApp Inc.
|
|
* Copyright (c) 2012 Citrix Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice unmodified, this list of conditions, and the following
|
|
* disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/**
|
|
* HyperV definitions for messages that are sent between instances of the
|
|
* Channel Management Library in separate partitions, or in some cases,
|
|
* back to itself.
|
|
*/
|
|
|
|
#ifndef __HYPERV_H__
|
|
#define __HYPERV_H__
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/mbuf.h>
|
|
#include <sys/queue.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/kthread.h>
|
|
#include <sys/taskqueue.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/sema.h>
|
|
#include <sys/smp.h>
|
|
#include <sys/mutex.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/sysctl.h>
|
|
#include <vm/vm.h>
|
|
#include <vm/vm_param.h>
|
|
#include <vm/pmap.h>
|
|
|
|
#include <amd64/include/xen/synch_bitops.h>
|
|
#include <amd64/include/atomic.h>
|
|
#include <dev/hyperv/include/hyperv_busdma.h>
|
|
|
|
typedef uint8_t hv_bool_uint8_t;
|
|
|
|
#define HV_S_OK 0x00000000
|
|
#define HV_E_FAIL 0x80004005
|
|
#define HV_ERROR_NOT_SUPPORTED 0x80070032
|
|
#define HV_ERROR_MACHINE_LOCKED 0x800704F7
|
|
|
|
/*
|
|
* VMBUS version is 32 bit, upper 16 bit for major_number and lower
|
|
* 16 bit for minor_number.
|
|
*
|
|
* 0.13 -- Windows Server 2008
|
|
* 1.1 -- Windows 7
|
|
* 2.4 -- Windows 8
|
|
* 3.0 -- Windows 8.1
|
|
*/
|
|
#define VMBUS_VERSION_WS2008 ((0 << 16) | (13))
|
|
#define VMBUS_VERSION_WIN7 ((1 << 16) | (1))
|
|
#define VMBUS_VERSION_WIN8 ((2 << 16) | (4))
|
|
#define VMBUS_VERSION_WIN8_1 ((3 << 16) | (0))
|
|
|
|
#define VMBUS_VERSION_MAJOR(ver) (((uint32_t)(ver)) >> 16)
|
|
#define VMBUS_VERSION_MINOR(ver) (((uint32_t)(ver)) & 0xffff)
|
|
|
|
/*
|
|
* Make maximum size of pipe payload of 16K
|
|
*/
|
|
|
|
#define HV_MAX_PIPE_DATA_PAYLOAD (sizeof(BYTE) * 16384)
|
|
|
|
/*
|
|
* Define pipe_mode values
|
|
*/
|
|
|
|
#define HV_VMBUS_PIPE_TYPE_BYTE 0x00000000
|
|
#define HV_VMBUS_PIPE_TYPE_MESSAGE 0x00000004
|
|
|
|
/*
|
|
* The size of the user defined data buffer for non-pipe offers
|
|
*/
|
|
|
|
#define HV_MAX_USER_DEFINED_BYTES 120
|
|
|
|
/*
|
|
* The size of the user defined data buffer for pipe offers
|
|
*/
|
|
|
|
#define HV_MAX_PIPE_USER_DEFINED_BYTES 116
|
|
|
|
|
|
#define HV_MAX_PAGE_BUFFER_COUNT 32
|
|
#define HV_MAX_MULTIPAGE_BUFFER_COUNT 32
|
|
|
|
#define HV_ALIGN_UP(value, align) \
|
|
(((value) & (align-1)) ? \
|
|
(((value) + (align-1)) & ~(align-1) ) : (value))
|
|
|
|
#define HV_ALIGN_DOWN(value, align) ( (value) & ~(align-1) )
|
|
|
|
#define HV_NUM_PAGES_SPANNED(addr, len) \
|
|
((HV_ALIGN_UP(addr+len, PAGE_SIZE) - \
|
|
HV_ALIGN_DOWN(addr, PAGE_SIZE)) >> PAGE_SHIFT )
|
|
|
|
typedef struct hv_guid {
|
|
uint8_t data[16];
|
|
} __packed hv_guid;
|
|
|
|
#define HYPERV_GUID_STRLEN 40
|
|
|
|
int hyperv_guid2str(const struct hv_guid *, char *, size_t);
|
|
|
|
#define HV_NIC_GUID \
|
|
.data = {0x63, 0x51, 0x61, 0xF8, 0x3E, 0xDF, 0xc5, 0x46, \
|
|
0x91, 0x3F, 0xF2, 0xD2, 0xF9, 0x65, 0xED, 0x0E}
|
|
|
|
#define HV_IDE_GUID \
|
|
.data = {0x32, 0x26, 0x41, 0x32, 0xcb, 0x86, 0xa2, 0x44, \
|
|
0x9b, 0x5c, 0x50, 0xd1, 0x41, 0x73, 0x54, 0xf5}
|
|
|
|
#define HV_SCSI_GUID \
|
|
.data = {0xd9, 0x63, 0x61, 0xba, 0xa1, 0x04, 0x29, 0x4d, \
|
|
0xb6, 0x05, 0x72, 0xe2, 0xff, 0xb1, 0xdc, 0x7f}
|
|
|
|
/*
|
|
* At the center of the Channel Management library is
|
|
* the Channel Offer. This struct contains the
|
|
* fundamental information about an offer.
|
|
*/
|
|
|
|
typedef struct hv_vmbus_channel_offer {
|
|
hv_guid interface_type;
|
|
hv_guid interface_instance;
|
|
uint64_t interrupt_latency_in_100ns_units;
|
|
uint32_t interface_revision;
|
|
uint32_t server_context_area_size; /* in bytes */
|
|
uint16_t channel_flags;
|
|
uint16_t mmio_megabytes; /* in bytes * 1024 * 1024 */
|
|
union
|
|
{
|
|
/*
|
|
* Non-pipes: The user has HV_MAX_USER_DEFINED_BYTES bytes.
|
|
*/
|
|
struct {
|
|
uint8_t user_defined[HV_MAX_USER_DEFINED_BYTES];
|
|
} __packed standard;
|
|
|
|
/*
|
|
* Pipes: The following structure is an integrated pipe protocol, which
|
|
* is implemented on top of standard user-defined data. pipe
|
|
* clients have HV_MAX_PIPE_USER_DEFINED_BYTES left for their
|
|
* own use.
|
|
*/
|
|
struct {
|
|
uint32_t pipe_mode;
|
|
uint8_t user_defined[HV_MAX_PIPE_USER_DEFINED_BYTES];
|
|
} __packed pipe;
|
|
} u;
|
|
|
|
/*
|
|
* Sub_channel_index, newly added in Win8.
|
|
*/
|
|
uint16_t sub_channel_index;
|
|
uint16_t padding;
|
|
|
|
} __packed hv_vmbus_channel_offer;
|
|
|
|
typedef struct {
|
|
uint16_t type;
|
|
uint16_t data_offset8;
|
|
uint16_t length8;
|
|
uint16_t flags;
|
|
uint64_t transaction_id;
|
|
} __packed hv_vm_packet_descriptor;
|
|
|
|
typedef uint32_t hv_previous_packet_offset;
|
|
|
|
typedef struct {
|
|
hv_previous_packet_offset previous_packet_start_offset;
|
|
hv_vm_packet_descriptor descriptor;
|
|
} __packed hv_vm_packet_header;
|
|
|
|
typedef struct {
|
|
uint32_t byte_count;
|
|
uint32_t byte_offset;
|
|
} __packed hv_vm_transfer_page;
|
|
|
|
typedef struct {
|
|
hv_vm_packet_descriptor d;
|
|
uint16_t transfer_page_set_id;
|
|
hv_bool_uint8_t sender_owns_set;
|
|
uint8_t reserved;
|
|
uint32_t range_count;
|
|
hv_vm_transfer_page ranges[1];
|
|
} __packed hv_vm_transfer_page_packet_header;
|
|
|
|
typedef struct {
|
|
hv_vm_packet_descriptor d;
|
|
uint32_t gpadl;
|
|
uint32_t reserved;
|
|
} __packed hv_vm_gpadl_packet_header;
|
|
|
|
typedef struct {
|
|
hv_vm_packet_descriptor d;
|
|
uint32_t gpadl;
|
|
uint16_t transfer_page_set_id;
|
|
uint16_t reserved;
|
|
} __packed hv_vm_add_remove_transfer_page_set;
|
|
|
|
/*
|
|
* This structure defines a range in guest
|
|
* physical space that can be made
|
|
* to look virtually contiguous.
|
|
*/
|
|
|
|
typedef struct {
|
|
uint32_t byte_count;
|
|
uint32_t byte_offset;
|
|
uint64_t pfn_array[0];
|
|
} __packed hv_gpa_range;
|
|
|
|
/*
|
|
* This is the format for an Establish Gpadl packet, which contains a handle
|
|
* by which this GPADL will be known and a set of GPA ranges associated with
|
|
* it. This can be converted to a MDL by the guest OS. If there are multiple
|
|
* GPA ranges, then the resulting MDL will be "chained," representing multiple
|
|
* VA ranges.
|
|
*/
|
|
|
|
typedef struct {
|
|
hv_vm_packet_descriptor d;
|
|
uint32_t gpadl;
|
|
uint32_t range_count;
|
|
hv_gpa_range range[1];
|
|
} __packed hv_vm_establish_gpadl;
|
|
|
|
/*
|
|
* This is the format for a Teardown Gpadl packet, which indicates that the
|
|
* GPADL handle in the Establish Gpadl packet will never be referenced again.
|
|
*/
|
|
|
|
typedef struct {
|
|
hv_vm_packet_descriptor d;
|
|
uint32_t gpadl;
|
|
/* for alignment to a 8-byte boundary */
|
|
uint32_t reserved;
|
|
} __packed hv_vm_teardown_gpadl;
|
|
|
|
/*
|
|
* This is the format for a GPA-Direct packet, which contains a set of GPA
|
|
* ranges, in addition to commands and/or data.
|
|
*/
|
|
|
|
typedef struct {
|
|
hv_vm_packet_descriptor d;
|
|
uint32_t reserved;
|
|
uint32_t range_count;
|
|
hv_gpa_range range[1];
|
|
} __packed hv_vm_data_gpa_direct;
|
|
|
|
/*
|
|
* This is the format for a Additional data Packet.
|
|
*/
|
|
typedef struct {
|
|
hv_vm_packet_descriptor d;
|
|
uint64_t total_bytes;
|
|
uint32_t byte_offset;
|
|
uint32_t byte_count;
|
|
uint8_t data[1];
|
|
} __packed hv_vm_additional_data;
|
|
|
|
typedef union {
|
|
hv_vm_packet_descriptor simple_header;
|
|
hv_vm_transfer_page_packet_header transfer_page_header;
|
|
hv_vm_gpadl_packet_header gpadl_header;
|
|
hv_vm_add_remove_transfer_page_set add_remove_transfer_page_header;
|
|
hv_vm_establish_gpadl establish_gpadl_header;
|
|
hv_vm_teardown_gpadl teardown_gpadl_header;
|
|
hv_vm_data_gpa_direct data_gpa_direct_header;
|
|
} __packed hv_vm_packet_largest_possible_header;
|
|
|
|
typedef enum {
|
|
HV_VMBUS_PACKET_TYPE_INVALID = 0x0,
|
|
HV_VMBUS_PACKET_TYPES_SYNCH = 0x1,
|
|
HV_VMBUS_PACKET_TYPE_ADD_TRANSFER_PAGE_SET = 0x2,
|
|
HV_VMBUS_PACKET_TYPE_REMOVE_TRANSFER_PAGE_SET = 0x3,
|
|
HV_VMBUS_PACKET_TYPE_ESTABLISH_GPADL = 0x4,
|
|
HV_VMBUS_PACKET_TYPE_TEAR_DOWN_GPADL = 0x5,
|
|
HV_VMBUS_PACKET_TYPE_DATA_IN_BAND = 0x6,
|
|
HV_VMBUS_PACKET_TYPE_DATA_USING_TRANSFER_PAGES = 0x7,
|
|
HV_VMBUS_PACKET_TYPE_DATA_USING_GPADL = 0x8,
|
|
HV_VMBUS_PACKET_TYPE_DATA_USING_GPA_DIRECT = 0x9,
|
|
HV_VMBUS_PACKET_TYPE_CANCEL_REQUEST = 0xa,
|
|
HV_VMBUS_PACKET_TYPE_COMPLETION = 0xb,
|
|
HV_VMBUS_PACKET_TYPE_DATA_USING_ADDITIONAL_PACKETS = 0xc,
|
|
HV_VMBUS_PACKET_TYPE_ADDITIONAL_DATA = 0xd
|
|
} hv_vmbus_packet_type;
|
|
|
|
#define HV_VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED 1
|
|
|
|
/*
|
|
* Version 1 messages
|
|
*/
|
|
typedef enum {
|
|
HV_CHANNEL_MESSAGE_INVALID = 0,
|
|
HV_CHANNEL_MESSAGE_OFFER_CHANNEL = 1,
|
|
HV_CHANNEL_MESSAGE_RESCIND_CHANNEL_OFFER = 2,
|
|
HV_CHANNEL_MESSAGE_REQUEST_OFFERS = 3,
|
|
HV_CHANNEL_MESSAGE_ALL_OFFERS_DELIVERED = 4,
|
|
HV_CHANNEL_MESSAGE_OPEN_CHANNEL = 5,
|
|
HV_CHANNEL_MESSAGE_OPEN_CHANNEL_RESULT = 6,
|
|
HV_CHANNEL_MESSAGE_CLOSE_CHANNEL = 7,
|
|
HV_CHANNEL_MESSAGEL_GPADL_HEADER = 8,
|
|
HV_CHANNEL_MESSAGE_GPADL_BODY = 9,
|
|
HV_CHANNEL_MESSAGE_GPADL_CREATED = 10,
|
|
HV_CHANNEL_MESSAGE_GPADL_TEARDOWN = 11,
|
|
HV_CHANNEL_MESSAGE_GPADL_TORNDOWN = 12,
|
|
HV_CHANNEL_MESSAGE_REL_ID_RELEASED = 13,
|
|
HV_CHANNEL_MESSAGE_INITIATED_CONTACT = 14,
|
|
HV_CHANNEL_MESSAGE_VERSION_RESPONSE = 15,
|
|
HV_CHANNEL_MESSAGE_UNLOAD = 16,
|
|
HV_CHANNEL_MESSAGE_COUNT
|
|
} hv_vmbus_channel_msg_type;
|
|
|
|
typedef struct {
|
|
hv_vmbus_channel_msg_type message_type;
|
|
uint32_t padding;
|
|
} __packed hv_vmbus_channel_msg_header;
|
|
|
|
/*
|
|
* Query VMBus Version parameters
|
|
*/
|
|
typedef struct {
|
|
hv_vmbus_channel_msg_header header;
|
|
uint32_t version;
|
|
} __packed hv_vmbus_channel_query_vmbus_version;
|
|
|
|
/*
|
|
* Channel Offer parameters
|
|
*/
|
|
typedef struct {
|
|
hv_vmbus_channel_msg_header header;
|
|
hv_vmbus_channel_offer offer;
|
|
uint32_t child_rel_id;
|
|
uint8_t monitor_id;
|
|
/*
|
|
* This field has been split into a bit field on Win7
|
|
* and higher.
|
|
*/
|
|
uint8_t monitor_allocated:1;
|
|
uint8_t reserved:7;
|
|
/*
|
|
* Following fields were added in win7 and higher.
|
|
* Make sure to check the version before accessing these fields.
|
|
*
|
|
* If "is_dedicated_interrupt" is set, we must not set the
|
|
* associated bit in the channel bitmap while sending the
|
|
* interrupt to the host.
|
|
*
|
|
* connection_id is used in signaling the host.
|
|
*/
|
|
uint16_t is_dedicated_interrupt:1;
|
|
uint16_t reserved1:15;
|
|
uint32_t connection_id;
|
|
} __packed hv_vmbus_channel_offer_channel;
|
|
|
|
/*
|
|
* Rescind Offer parameters
|
|
*/
|
|
typedef struct
|
|
{
|
|
hv_vmbus_channel_msg_header header;
|
|
uint32_t child_rel_id;
|
|
} __packed hv_vmbus_channel_rescind_offer;
|
|
|
|
typedef struct {
|
|
hv_vmbus_channel_msg_header header;
|
|
uint32_t child_rel_id;
|
|
} __packed hv_vmbus_channel_relid_released;
|
|
|
|
#define HW_MACADDR_LEN 6
|
|
|
|
enum {
|
|
HV_VMBUS_IVAR_TYPE,
|
|
HV_VMBUS_IVAR_INSTANCE,
|
|
HV_VMBUS_IVAR_NODE,
|
|
HV_VMBUS_IVAR_DEVCTX,
|
|
HV_VMBUS_IVAR_CHAN,
|
|
};
|
|
|
|
#define HV_VMBUS_ACCESSOR(var, ivar, type) \
|
|
__BUS_ACCESSOR(vmbus, var, HV_VMBUS, ivar, type)
|
|
|
|
struct hv_vmbus_channel;
|
|
|
|
HV_VMBUS_ACCESSOR(type, TYPE, const char *)
|
|
HV_VMBUS_ACCESSOR(devctx, DEVCTX, struct hv_device *)
|
|
HV_VMBUS_ACCESSOR(channel, CHAN, struct hv_vmbus_channel *)
|
|
|
|
|
|
/*
|
|
* Common defines for Hyper-V ICs
|
|
*/
|
|
#define HV_ICMSGTYPE_NEGOTIATE 0
|
|
#define HV_ICMSGTYPE_HEARTBEAT 1
|
|
#define HV_ICMSGTYPE_KVPEXCHANGE 2
|
|
#define HV_ICMSGTYPE_SHUTDOWN 3
|
|
#define HV_ICMSGTYPE_TIMESYNC 4
|
|
#define HV_ICMSGTYPE_VSS 5
|
|
|
|
#define HV_ICMSGHDRFLAG_TRANSACTION 1
|
|
#define HV_ICMSGHDRFLAG_REQUEST 2
|
|
#define HV_ICMSGHDRFLAG_RESPONSE 4
|
|
|
|
typedef struct hv_vmbus_pipe_hdr {
|
|
uint32_t flags;
|
|
uint32_t msgsize;
|
|
} __packed hv_vmbus_pipe_hdr;
|
|
|
|
typedef struct hv_vmbus_ic_version {
|
|
uint16_t major;
|
|
uint16_t minor;
|
|
} __packed hv_vmbus_ic_version;
|
|
|
|
typedef struct hv_vmbus_icmsg_hdr {
|
|
hv_vmbus_ic_version icverframe;
|
|
uint16_t icmsgtype;
|
|
hv_vmbus_ic_version icvermsg;
|
|
uint16_t icmsgsize;
|
|
uint32_t status;
|
|
uint8_t ictransaction_id;
|
|
uint8_t icflags;
|
|
uint8_t reserved[2];
|
|
} __packed hv_vmbus_icmsg_hdr;
|
|
|
|
typedef struct hv_vmbus_icmsg_negotiate {
|
|
uint16_t icframe_vercnt;
|
|
uint16_t icmsg_vercnt;
|
|
uint32_t reserved;
|
|
hv_vmbus_ic_version icversion_data[1]; /* any size array */
|
|
} __packed hv_vmbus_icmsg_negotiate;
|
|
|
|
typedef struct hv_vmbus_shutdown_msg_data {
|
|
uint32_t reason_code;
|
|
uint32_t timeout_seconds;
|
|
uint32_t flags;
|
|
uint8_t display_message[2048];
|
|
} __packed hv_vmbus_shutdown_msg_data;
|
|
|
|
typedef struct hv_vmbus_heartbeat_msg_data {
|
|
uint64_t seq_num;
|
|
uint32_t reserved[8];
|
|
} __packed hv_vmbus_heartbeat_msg_data;
|
|
|
|
typedef struct {
|
|
/*
|
|
* offset in bytes from the start of ring data below
|
|
*/
|
|
volatile uint32_t write_index;
|
|
/*
|
|
* offset in bytes from the start of ring data below
|
|
*/
|
|
volatile uint32_t read_index;
|
|
/*
|
|
* NOTE: The interrupt_mask field is used only for channels, but
|
|
* vmbus connection also uses this data structure
|
|
*/
|
|
volatile uint32_t interrupt_mask;
|
|
/* pad it to PAGE_SIZE so that data starts on a page */
|
|
uint8_t reserved[4084];
|
|
|
|
/*
|
|
* WARNING: Ring data starts here + ring_data_start_offset
|
|
* !!! DO NOT place any fields below this !!!
|
|
*/
|
|
uint8_t buffer[0]; /* doubles as interrupt mask */
|
|
} __packed hv_vmbus_ring_buffer;
|
|
|
|
typedef struct {
|
|
int length;
|
|
int offset;
|
|
uint64_t pfn;
|
|
} __packed hv_vmbus_page_buffer;
|
|
|
|
typedef struct {
|
|
int length;
|
|
int offset;
|
|
uint64_t pfn_array[HV_MAX_MULTIPAGE_BUFFER_COUNT];
|
|
} __packed hv_vmbus_multipage_buffer;
|
|
|
|
typedef struct {
|
|
hv_vmbus_ring_buffer* ring_buffer;
|
|
uint32_t ring_size; /* Include the shared header */
|
|
struct mtx ring_lock;
|
|
uint32_t ring_data_size; /* ring_size */
|
|
uint32_t ring_data_start_offset;
|
|
} hv_vmbus_ring_buffer_info;
|
|
|
|
typedef void (*hv_vmbus_pfn_channel_callback)(void *context);
|
|
|
|
typedef enum {
|
|
HV_CHANNEL_OFFER_STATE,
|
|
HV_CHANNEL_OPENING_STATE,
|
|
HV_CHANNEL_OPEN_STATE,
|
|
HV_CHANNEL_OPENED_STATE,
|
|
HV_CHANNEL_CLOSING_NONDESTRUCTIVE_STATE,
|
|
} hv_vmbus_channel_state;
|
|
|
|
/*
|
|
* Connection identifier type
|
|
*/
|
|
typedef union {
|
|
uint32_t as_uint32_t;
|
|
struct {
|
|
uint32_t id:24;
|
|
uint32_t reserved:8;
|
|
} u;
|
|
|
|
} __packed hv_vmbus_connection_id;
|
|
|
|
typedef struct hv_vmbus_channel {
|
|
struct hv_device* device;
|
|
device_t ch_dev;
|
|
struct vmbus_softc *vmbus_sc;
|
|
hv_vmbus_channel_state state;
|
|
uint32_t ch_flags; /* VMBUS_CHAN_FLAG_ */
|
|
uint32_t ch_id; /* channel id */
|
|
/*
|
|
* These are based on the offer_msg.monitor_id.
|
|
* Save it here for easy access.
|
|
*/
|
|
uint8_t monitor_group;
|
|
uint8_t monitor_bit;
|
|
|
|
uint32_t ring_buffer_gpadl_handle;
|
|
/*
|
|
* Allocated memory for ring buffer
|
|
*/
|
|
void* ring_buffer_pages;
|
|
unsigned long ring_buffer_size;
|
|
uint32_t ring_buffer_page_count;
|
|
/*
|
|
* send to parent
|
|
*/
|
|
hv_vmbus_ring_buffer_info outbound;
|
|
/*
|
|
* receive from parent
|
|
*/
|
|
hv_vmbus_ring_buffer_info inbound;
|
|
|
|
struct taskqueue * rxq;
|
|
struct task channel_task;
|
|
hv_vmbus_pfn_channel_callback on_channel_callback;
|
|
void* channel_callback_context;
|
|
|
|
/*
|
|
* If batched_reading is set to "true", mask the interrupt
|
|
* and read until the channel is empty.
|
|
* If batched_reading is set to "false", the channel is not
|
|
* going to perform batched reading.
|
|
*
|
|
* Batched reading is enabled by default; specific
|
|
* drivers that don't want this behavior can turn it off.
|
|
*/
|
|
boolean_t batched_reading;
|
|
|
|
boolean_t is_dedicated_interrupt;
|
|
|
|
struct hypercall_sigevt_in *ch_sigevt;
|
|
struct hyperv_dma ch_sigevt_dma;
|
|
|
|
/*
|
|
* From Win8, this field specifies the target virtual process
|
|
* on which to deliver the interrupt from the host to guest.
|
|
* Before Win8, all channel interrupts would only be
|
|
* delivered on cpu 0. Setting this value to 0 would preserve
|
|
* the earlier behavior.
|
|
*/
|
|
uint32_t target_vcpu;
|
|
/* The corresponding CPUID in the guest */
|
|
uint32_t target_cpu;
|
|
|
|
/*
|
|
* Support for multi-channels.
|
|
* The initial offer is considered the primary channel and this
|
|
* offer message will indicate if the host supports multi-channels.
|
|
* The guest is free to ask for multi-channels to be offerred and can
|
|
* open these multi-channels as a normal "primary" channel. However,
|
|
* all multi-channels will have the same type and instance guids as the
|
|
* primary channel. Requests sent on a given channel will result in a
|
|
* response on the same channel.
|
|
*/
|
|
|
|
struct mtx sc_lock;
|
|
|
|
/*
|
|
* Link list of all the multi-channels if this is a primary channel
|
|
*/
|
|
TAILQ_HEAD(, hv_vmbus_channel) sc_list_anchor;
|
|
TAILQ_ENTRY(hv_vmbus_channel) sc_list_entry;
|
|
int subchan_cnt;
|
|
|
|
/*
|
|
* The primary channel this sub-channle belongs to.
|
|
* This will be NULL for the primary channel.
|
|
*/
|
|
struct hv_vmbus_channel *primary_channel;
|
|
|
|
/*
|
|
* Driver private data
|
|
*/
|
|
void *hv_chan_priv1;
|
|
void *hv_chan_priv2;
|
|
void *hv_chan_priv3;
|
|
|
|
struct task ch_detach_task;
|
|
TAILQ_ENTRY(hv_vmbus_channel) ch_link;
|
|
uint32_t ch_subidx; /* subchan index */
|
|
|
|
struct hv_guid ch_guid_type;
|
|
struct hv_guid ch_guid_inst;
|
|
|
|
struct sysctl_ctx_list ch_sysctl_ctx;
|
|
} hv_vmbus_channel;
|
|
|
|
#define HV_VMBUS_CHAN_ISPRIMARY(chan) ((chan)->primary_channel == NULL)
|
|
|
|
#define VMBUS_CHAN_FLAG_HASMNF 0x0001
|
|
|
|
static inline void
|
|
hv_set_channel_read_state(hv_vmbus_channel* channel, boolean_t state)
|
|
{
|
|
channel->batched_reading = state;
|
|
}
|
|
|
|
typedef struct hv_device {
|
|
hv_guid class_id;
|
|
hv_guid device_id;
|
|
device_t device;
|
|
hv_vmbus_channel* channel;
|
|
} hv_device;
|
|
|
|
|
|
|
|
int hv_vmbus_channel_recv_packet(
|
|
hv_vmbus_channel* channel,
|
|
void* buffer,
|
|
uint32_t buffer_len,
|
|
uint32_t* buffer_actual_len,
|
|
uint64_t* request_id);
|
|
|
|
int hv_vmbus_channel_recv_packet_raw(
|
|
hv_vmbus_channel* channel,
|
|
void* buffer,
|
|
uint32_t buffer_len,
|
|
uint32_t* buffer_actual_len,
|
|
uint64_t* request_id);
|
|
|
|
int hv_vmbus_channel_open(
|
|
hv_vmbus_channel* channel,
|
|
uint32_t send_ring_buffer_size,
|
|
uint32_t recv_ring_buffer_size,
|
|
void* user_data,
|
|
uint32_t user_data_len,
|
|
hv_vmbus_pfn_channel_callback
|
|
pfn_on_channel_callback,
|
|
void* context);
|
|
|
|
void hv_vmbus_channel_close(hv_vmbus_channel *channel);
|
|
|
|
int hv_vmbus_channel_send_packet(
|
|
hv_vmbus_channel* channel,
|
|
void* buffer,
|
|
uint32_t buffer_len,
|
|
uint64_t request_id,
|
|
hv_vmbus_packet_type type,
|
|
uint32_t flags);
|
|
|
|
int hv_vmbus_channel_send_packet_pagebuffer(
|
|
hv_vmbus_channel* channel,
|
|
hv_vmbus_page_buffer page_buffers[],
|
|
uint32_t page_count,
|
|
void* buffer,
|
|
uint32_t buffer_len,
|
|
uint64_t request_id);
|
|
|
|
int hv_vmbus_channel_send_packet_multipagebuffer(
|
|
hv_vmbus_channel* channel,
|
|
hv_vmbus_multipage_buffer* multi_page_buffer,
|
|
void* buffer,
|
|
uint32_t buffer_len,
|
|
uint64_t request_id);
|
|
|
|
int hv_vmbus_channel_establish_gpadl(
|
|
hv_vmbus_channel* channel,
|
|
/* must be phys and virt contiguous */
|
|
void* contig_buffer,
|
|
/* page-size multiple */
|
|
uint32_t size,
|
|
uint32_t* gpadl_handle);
|
|
|
|
int hv_vmbus_channel_teardown_gpdal(
|
|
hv_vmbus_channel* channel,
|
|
uint32_t gpadl_handle);
|
|
|
|
struct hv_vmbus_channel* vmbus_select_outgoing_channel(struct hv_vmbus_channel *promary);
|
|
|
|
void vmbus_channel_cpu_set(struct hv_vmbus_channel *chan, int cpu);
|
|
void vmbus_channel_cpu_rr(struct hv_vmbus_channel *chan);
|
|
struct hv_vmbus_channel **
|
|
vmbus_get_subchan(struct hv_vmbus_channel *pri_chan, int subchan_cnt);
|
|
void vmbus_rel_subchan(struct hv_vmbus_channel **subchan, int subchan_cnt);
|
|
void vmbus_drain_subchan(struct hv_vmbus_channel *pri_chan);
|
|
|
|
/**
|
|
* @brief Get physical address from virtual
|
|
*/
|
|
static inline unsigned long
|
|
hv_get_phys_addr(void *virt)
|
|
{
|
|
unsigned long ret;
|
|
ret = (vtophys(virt) | ((vm_offset_t) virt & PAGE_MASK));
|
|
return (ret);
|
|
}
|
|
|
|
#endif /* __HYPERV_H__ */
|