mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 15:27:36 +07:00
b4ed5d1682
Currently some "Unspecified error 0x80004005" is reported on the Windows side if something fails. Handle the ENOSPC case and return ERROR_DISK_FULL, which allows at least Copy-VMFile to report a meaning full error. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
400 lines
10 KiB
C
400 lines
10 KiB
C
/*
|
|
*
|
|
* Copyright (c) 2011, Microsoft Corporation.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with
|
|
* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
|
|
* Place - Suite 330, Boston, MA 02111-1307 USA.
|
|
*
|
|
* Authors:
|
|
* Haiyang Zhang <haiyangz@microsoft.com>
|
|
* Hank Janssen <hjanssen@microsoft.com>
|
|
* K. Y. Srinivasan <kys@microsoft.com>
|
|
*
|
|
*/
|
|
|
|
#ifndef _UAPI_HYPERV_H
|
|
#define _UAPI_HYPERV_H
|
|
|
|
#include <linux/uuid.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
|
|
|
|
/*
|
|
Daemon code with full handshake support.
|
|
*/
|
|
#define VSS_OP_REGISTER1 129
|
|
|
|
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));
|
|
|
|
/*
|
|
* Implementation of a host to guest copy facility.
|
|
*/
|
|
|
|
#define FCOPY_VERSION_0 0
|
|
#define FCOPY_VERSION_1 1
|
|
#define FCOPY_CURRENT_VERSION FCOPY_VERSION_1
|
|
#define W_MAX_PATH 260
|
|
|
|
enum hv_fcopy_op {
|
|
START_FILE_COPY = 0,
|
|
WRITE_TO_FILE,
|
|
COMPLETE_FCOPY,
|
|
CANCEL_FCOPY,
|
|
};
|
|
|
|
struct hv_fcopy_hdr {
|
|
__u32 operation;
|
|
uuid_le service_id0; /* currently unused */
|
|
uuid_le service_id1; /* currently unused */
|
|
} __attribute__((packed));
|
|
|
|
#define OVER_WRITE 0x1
|
|
#define CREATE_PATH 0x2
|
|
|
|
struct hv_start_fcopy {
|
|
struct hv_fcopy_hdr hdr;
|
|
__u16 file_name[W_MAX_PATH];
|
|
__u16 path_name[W_MAX_PATH];
|
|
__u32 copy_flags;
|
|
__u64 file_size;
|
|
} __attribute__((packed));
|
|
|
|
/*
|
|
* The file is chunked into fragments.
|
|
*/
|
|
#define DATA_FRAGMENT (6 * 1024)
|
|
|
|
struct hv_do_fcopy {
|
|
struct hv_fcopy_hdr hdr;
|
|
__u32 pad;
|
|
__u64 offset;
|
|
__u32 size;
|
|
__u8 data[DATA_FRAGMENT];
|
|
} __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.
|
|
*/
|
|
|
|
#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 HV_ERROR_ALREADY_EXISTS 0x80070050
|
|
#define HV_ERROR_DISK_FULL 0x80070070
|
|
|
|
#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));
|
|
|
|
#endif /* _UAPI_HYPERV_H */
|