staging: Remove the drivers for the Unisys s-Par

The Unisys sub-tree of drivers/staging contains three drivers for the
"Unisys Secure Partition" (s-Par(R)): visorhba, visorinput, visornic.

They have no maintainers, in fact the only one that is listed in
MAINTAINERS has an unreacheable email address. During 2021 and 2022
several patches have been submitted to these drivers but nobody at
Unisys cared of reviewing the changes. Probably, also the
"sparmaintainer" internal list of unisys.com is not anymore read by
interested Unisys' engineers.

Therefore, remove the drivers/staging/unisys directory and delete the
relevant entries in the MAINTAINERS, Kconfig, Makefile files, then
remove also the drivers/visorbus directory which is not anymore needed
(it contained the driver for the virtualized bus for the Unisys s-Par
firmware).

Cc: David Kershner <david.kershner@unisys.com>
Cc: <sparmaintainer@unisys.com>
Cc: Ken Cox <jkc@redhat.com>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Link: https://lore.kernel.org/r/20220414103217.32058-1-fmdefrancesco@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 0 insertions, 650 deletions

diff --git a/drivers/visorbus/controlvmchannel.h b/drivers/visorbus/controlvmchannel.h
deleted file mode 100644
index c87213554427..000000000000
--- a/drivers/visorbus/controlvmchannel.h
+++ /dev/null
@@ -1,650 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Copyright (C) 2010 - 2015 UNISYS CORPORATION
- * All rights reserved.
- */
-
-#ifndef __CONTROLVMCHANNEL_H__
-#define __CONTROLVMCHANNEL_H__
-
-#include <linux/uuid.h>
-#include <linux/visorbus.h>
-
-/* {2B3C2D10-7EF5-4ad8-B966-3448B7386B3D} */
-#define VISOR_CONTROLVM_CHANNEL_GUID \
-	GUID_INIT(0x2b3c2d10, 0x7ef5, 0x4ad8, \
-		  0xb9, 0x66, 0x34, 0x48, 0xb7, 0x38, 0x6b, 0x3d)
-
-#define CONTROLVM_MESSAGE_MAX 64
-
-/*
- * Must increment this whenever you insert or delete fields within this channel
- * struct.  Also increment whenever you change the meaning of fields within this
- * channel struct so as to break pre-existing software. Note that you can
- * usually add fields to the END of the channel struct withOUT needing to
- * increment this.
- */
-#define VISOR_CONTROLVM_CHANNEL_VERSIONID 1
-
-/* Defines for various channel queues */
-#define CONTROLVM_QUEUE_REQUEST		0
-#define CONTROLVM_QUEUE_RESPONSE	1
-#define CONTROLVM_QUEUE_EVENT		2
-#define CONTROLVM_QUEUE_ACK		3
-
-/* Max num of messages stored during IOVM creation to be reused after crash */
-#define CONTROLVM_CRASHMSG_MAX 2
-
-/*
- * struct visor_segment_state
- * @enabled:   May enter other states.
- * @active:    Assigned to active partition.
- * @alive:     Configure message sent to service/server.
- * @revoked:   Similar to partition state ShuttingDown.
- * @allocated: Memory (device/port number) has been selected by Command.
- * @known:     Has been introduced to the service/guest partition.
- * @ready:     Service/Guest partition has responded to introduction.
- * @operating: Resource is configured and operating.
- * @reserved:  Natural alignment.
- *
- * Note: Don't use high bit unless we need to switch to ushort which is
- * non-compliant.
- */
-struct visor_segment_state  {
-	u16 enabled:1;
-	u16 active:1;
-	u16 alive:1;
-	u16 revoked:1;
-	u16 allocated:1;
-	u16 known:1;
-	u16 ready:1;
-	u16 operating:1;
-	u16 reserved:8;
-} __packed;
-
-static const struct visor_segment_state segment_state_running = {
-	1, 1, 1, 0, 1, 1, 1, 1
-};
-
-static const struct visor_segment_state segment_state_paused = {
-	1, 1, 1, 0, 1, 1, 1, 0
-};
-
-static const struct visor_segment_state segment_state_standby = {
-	1, 1, 0, 0, 1, 1, 1, 0
-};
-
-/*
- * enum controlvm_id
- * @CONTROLVM_INVALID:
- * @CONTROLVM_BUS_CREATE:		CP --> SP, GP.
- * @CONTROLVM_BUS_DESTROY:		CP --> SP, GP.
- * @CONTROLVM_BUS_CONFIGURE:		CP --> SP.
- * @CONTROLVM_BUS_CHANGESTATE:		CP --> SP, GP.
- * @CONTROLVM_BUS_CHANGESTATE_EVENT:	SP, GP --> CP.
- * @CONTROLVM_DEVICE_CREATE:		CP --> SP, GP.
- * @CONTROLVM_DEVICE_DESTROY:		CP --> SP, GP.
- * @CONTROLVM_DEVICE_CONFIGURE:		CP --> SP.
- * @CONTROLVM_DEVICE_CHANGESTATE:	CP --> SP, GP.
- * @CONTROLVM_DEVICE_CHANGESTATE_EVENT:	SP, GP --> CP.
- * @CONTROLVM_DEVICE_RECONFIGURE:	CP --> Boot.
- * @CONTROLVM_CHIPSET_INIT:		CP --> SP, GP.
- * @CONTROLVM_CHIPSET_STOP:		CP --> SP, GP.
- * @CONTROLVM_CHIPSET_READY:		CP --> SP.
- * @CONTROLVM_CHIPSET_SELFTEST:		CP --> SP.
- *
- * Ids for commands that may appear in either queue of a ControlVm channel.
- *
- * Commands that are initiated by the command partition (CP), by an IO or
- * console service partition (SP), or by a guest partition (GP) are:
- * - issued on the RequestQueue queue (q #0) in the ControlVm channel
- * - responded to on the ResponseQueue queue (q #1) in the ControlVm channel
- *
- * Events that are initiated by an IO or console service partition (SP) or
- * by a guest partition (GP) are:
- * - issued on the EventQueue queue (q #2) in the ControlVm channel
- * - responded to on the EventAckQueue queue (q #3) in the ControlVm channel
- */
-enum controlvm_id {
-	CONTROLVM_INVALID = 0,
-	/*
-	 * SWITCH commands required Parameter: SwitchNumber.
-	 * BUS commands required Parameter: BusNumber
-	 */
-	CONTROLVM_BUS_CREATE = 0x101,
-	CONTROLVM_BUS_DESTROY = 0x102,
-	CONTROLVM_BUS_CONFIGURE = 0x104,
-	CONTROLVM_BUS_CHANGESTATE = 0x105,
-	CONTROLVM_BUS_CHANGESTATE_EVENT = 0x106,
-	/* DEVICE commands required Parameter: BusNumber, DeviceNumber */
-	CONTROLVM_DEVICE_CREATE = 0x201,
-	CONTROLVM_DEVICE_DESTROY = 0x202,
-	CONTROLVM_DEVICE_CONFIGURE = 0x203,
-	CONTROLVM_DEVICE_CHANGESTATE = 0x204,
-	CONTROLVM_DEVICE_CHANGESTATE_EVENT = 0x205,
-	CONTROLVM_DEVICE_RECONFIGURE = 0x206,
-	/* CHIPSET commands */
-	CONTROLVM_CHIPSET_INIT = 0x301,
-	CONTROLVM_CHIPSET_STOP = 0x302,
-	CONTROLVM_CHIPSET_READY = 0x304,
-	CONTROLVM_CHIPSET_SELFTEST = 0x305,
-};
-
-/*
- * struct irq_info
- * @reserved1:	     Natural alignment purposes
- * @recv_irq_handle: Specifies interrupt handle. It is used to retrieve the
- *		     corresponding interrupt pin from Monitor; and the interrupt
- *		     pin is used to connect to the corresponding interrupt.
- *		     Used by IOPart-GP only.
- * @recv_irq_vector: Specifies interrupt vector. It, interrupt pin, and shared
- *		     are used to connect to the corresponding interrupt.
- *		     Used by IOPart-GP only.
- * @recv_irq_shared: Specifies if the recvInterrupt is shared.  It, interrupt
- *		     pin and vector are used to connect to 0 = not shared;
- *		     1 = shared the corresponding interrupt.
- *		     Used by IOPart-GP only.
- * @reserved:	     Natural alignment purposes
- */
-struct irq_info {
-	u64 reserved1;
-	u64 recv_irq_handle;
-	u32 recv_irq_vector;
-	u8 recv_irq_shared;
-	u8 reserved[3];
-} __packed;
-
-/*
- * struct efi_visor_indication
- * @boot_to_fw_ui: Stop in UEFI UI
- * @clear_nvram:   Clear NVRAM
- * @clear_cmos:	   Clear CMOS
- * @boot_to_tool:  Run install tool
- * @reserved:	   Natural alignment
- */
-struct efi_visor_indication  {
-	u64 boot_to_fw_ui:1;
-	u64 clear_nvram:1;
-	u64 clear_cmos:1;
-	u64 boot_to_tool:1;
-	/* Remaining bits are available */
-	u64 reserved:60;
-} __packed;
-
-enum visor_chipset_feature {
-	VISOR_CHIPSET_FEATURE_REPLY = 0x00000001,
-	VISOR_CHIPSET_FEATURE_PARA_HOTPLUG = 0x00000002,
-};
-
-/*
- * struct controlvm_message_header
- * @id:		       See CONTROLVM_ID.
- * @message_size:      Includes size of this struct + size of message.
- * @segment_index:     Index of segment containing Vm message/information.
- * @completion_status: Error status code or result of  message completion.
- * @struct flags:
- *	@failed:	     =1 in a response to signify failure.
- *	@response_expected:  =1 in all messages that expect a response.
- *	@server:	     =1 in all bus & device-related messages where the
- *			     message receiver is to act as the bus or device
- *			     server.
- *	@test_message:	     =1 for testing use only (Control and Command
- *			     ignore this).
- *	@partial_completion: =1 if there are forthcoming responses/acks
- *                           associated with this message.
- *      @preserve:	     =1 this is to let us know to preserve channel
- *			     contents.
- *	@writer_in_diag:     =1 the DiagWriter is active in the Diagnostic
- *			     Partition.
- *	@reserve:	     Natural alignment.
- * @reserved:	       Natural alignment.
- * @message_handle:    Identifies the particular message instance.
- * @payload_vm_offset: Offset of payload area from start of this instance.
- * @payload_max_bytes: Maximum bytes allocated in payload area of ControlVm
- *		       segment.
- * @payload_bytes:     Actual number of bytes of payload area to copy between
- *		       IO/Command. If non-zero, there is a payload to copy.
- *
- * This is the common structure that is at the beginning of every
- * ControlVm message (both commands and responses) in any ControlVm
- * queue.  Commands are easily distinguished from responses by
- * looking at the flags.response field.
- */
-struct controlvm_message_header  {
-	u32 id;
-	/*
-	 * For requests, indicates the message type. For responses, indicates
-	 * the type of message we are responding to.
-	 */
-	u32 message_size;
-	u32 segment_index;
-	u32 completion_status;
-	struct  {
-		u32 failed:1;
-		u32 response_expected:1;
-		u32 server:1;
-		u32 test_message:1;
-		u32 partial_completion:1;
-		u32 preserve:1;
-		u32 writer_in_diag:1;
-		u32 reserve:25;
-	} __packed flags;
-	u32 reserved;
-	u64 message_handle;
-	u64 payload_vm_offset;
-	u32 payload_max_bytes;
-	u32 payload_bytes;
-} __packed;
-
-/*
- * struct controlvm_packet_device_create - For CONTROLVM_DEVICE_CREATE
- * @bus_no:	    Bus # (0..n-1) from the msg receiver's end.
- * @dev_no:	    Bus-relative (0..n-1) device number.
- * @channel_addr:   Guest physical address of the channel, which can be
- *		    dereferenced by the receiver of this ControlVm command.
- * @channel_bytes:  Specifies size of the channel in bytes.
- * @data_type_uuid: Specifies format of data in channel.
- * @dev_inst_uuid:  Instance guid for the device.
- * @irq_info intr:  Specifies interrupt information.
- */
-struct controlvm_packet_device_create  {
-	u32 bus_no;
-	u32 dev_no;
-	u64 channel_addr;
-	u64 channel_bytes;
-	guid_t data_type_guid;
-	guid_t dev_inst_guid;
-	struct irq_info intr;
-} __packed;
-
-/*
- * struct controlvm_packet_device_configure - For CONTROLVM_DEVICE_CONFIGURE
- * @bus_no: Bus number (0..n-1) from the msg receiver's perspective.
- * @dev_no: Bus-relative (0..n-1) device number.
- */
-struct controlvm_packet_device_configure  {
-	u32 bus_no;
-	u32 dev_no;
-} __packed;
-
-/* Total 128 bytes */
-struct controlvm_message_device_create {
-	struct controlvm_message_header header;
-	struct controlvm_packet_device_create packet;
-} __packed;
-
-/* Total 56 bytes */
-struct controlvm_message_device_configure  {
-	struct controlvm_message_header header;
-	struct controlvm_packet_device_configure packet;
-} __packed;
-
-/*
- * struct controlvm_message_packet - This is the format for a message in any
- *                                   ControlVm queue.
- * @struct create_bus:		For CONTROLVM_BUS_CREATE.
- *	@bus_no:	     Bus # (0..n-1) from the msg receiver's perspective.
- *	@dev_count:	     Indicates the max number of devices on this bus.
- *	@channel_addr:	     Guest physical address of the channel, which can be
- *			     dereferenced by the receiver of this ControlVM
- *			     command.
- *	@channel_bytes:	     Size of the channel.
- *	@bus_data_type_uuid: Indicates format of data in bus channel.
- *	@bus_inst_uuid:	     Instance uuid for the bus.
- *
- * @struct destroy_bus:		For CONTROLVM_BUS_DESTROY.
- *	@bus_no: Bus # (0..n-1) from the msg receiver's perspective.
- *	@reserved: Natural alignment purposes.
- *
- * @struct configure_bus:	For CONTROLVM_BUS_CONFIGURE.
- *	@bus_no:	      Bus # (0..n-1) from the receiver's perspective.
- *	@reserved1:	      For alignment purposes.
- *	@guest_handle:	      This is used to convert guest physical address to
- *			      physical address.
- *	@recv_bus_irq_handle: Specifies interrupt info. It is used by SP to
- *			      register to receive interrupts from the CP. This
- *			      interrupt is used for bus level notifications.
- *			      The corresponding sendBusInterruptHandle is kept
- *			      in CP.
- *
- * @struct create_device:	For CONTROLVM_DEVICE_CREATE.
- *
- * @struct destroy_device:	For CONTROLVM_DEVICE_DESTROY.
- *	@bus_no: Bus # (0..n-1) from the msg receiver's perspective.
- *	@dev_no: Bus-relative (0..n-1) device number.
- *
- * @struct configure_device:	For CONTROLVM_DEVICE_CONFIGURE.
- *
- * @struct reconfigure_device:	For CONTROLVM_DEVICE_RECONFIGURE.
- *	@bus_no: Bus # (0..n-1) from the msg receiver's perspective.
- *	@dev_no: Bus-relative (0..n-1) device number.
- *
- * @struct bus_change_state:	For CONTROLVM_BUS_CHANGESTATE.
- *	@bus_no:
- *	@struct state:
- *	@reserved: Natural alignment purposes.
- *
- * @struct device_change_state:	For CONTROLVM_DEVICE_CHANGESTATE.
- *	@bus_no:
- *	@dev_no:
- *	@struct state:
- *	@struct flags:
- *		@phys_device: =1 if message is for a physical device.
- *		@reserved:    Natural alignment.
- *		@reserved1:   Natural alignment.
- *	@reserved:    Natural alignment purposes.
- *
- * @struct device_change_state_event:	For CONTROLVM_DEVICE_CHANGESTATE_EVENT.
- *	@bus_no:
- *	@dev_no:
- *	@struct state:
- *	@reserved:     Natural alignment purposes.
- *
- * @struct init_chipset:	For CONTROLVM_CHIPSET_INIT.
- *	@bus_count:	  Indicates the max number of busses.
- *	@switch_count:    Indicates the max number of switches.
- *	@enum features:
- *	@platform_number:
- *
- * @struct chipset_selftest:	For CONTROLVM_CHIPSET_SELFTEST.
- *      @options: Reserved.
- *      @test:	  Bit 0 set to run embedded selftest.
- *
- * @addr:   A physical address of something, that can be dereferenced by the
- *	    receiver of this ControlVm command.
- *
- * @handle: A handle of something (depends on command id).
- */
-struct controlvm_message_packet  {
-	union  {
-		struct  {
-			u32 bus_no;
-			u32 dev_count;
-			u64 channel_addr;
-			u64 channel_bytes;
-			guid_t bus_data_type_guid;
-			guid_t bus_inst_guid;
-		} __packed create_bus;
-		struct  {
-			u32 bus_no;
-			u32 reserved;
-		} __packed destroy_bus;
-		struct  {
-			u32 bus_no;
-			u32 reserved1;
-			u64 guest_handle;
-			u64 recv_bus_irq_handle;
-		} __packed configure_bus;
-		struct controlvm_packet_device_create create_device;
-		struct  {
-			u32 bus_no;
-			u32 dev_no;
-		} __packed destroy_device;
-		struct controlvm_packet_device_configure configure_device;
-		struct  {
-			u32 bus_no;
-			u32 dev_no;
-		} __packed reconfigure_device;
-		struct  {
-			u32 bus_no;
-			struct visor_segment_state state;
-			u8 reserved[2];
-		} __packed bus_change_state;
-		struct  {
-			u32 bus_no;
-			u32 dev_no;
-			struct visor_segment_state state;
-			struct  {
-				u32 phys_device:1;
-				u32 reserved:31;
-				u32 reserved1;
-			} __packed flags;
-			u8 reserved[2];
-		} __packed device_change_state;
-		struct  {
-			u32 bus_no;
-			u32 dev_no;
-			struct visor_segment_state state;
-			u8 reserved[6];
-		} __packed device_change_state_event;
-		struct  {
-			u32 bus_count;
-			u32 switch_count;
-			enum visor_chipset_feature features;
-			u32 platform_number;
-		} __packed init_chipset;
-		struct  {
-			u32 options;
-			u32 test;
-		} __packed chipset_selftest;
-		u64 addr;
-		u64 handle;
-	};
-} __packed;
-
-/* All messages in any ControlVm queue have this layout. */
-struct controlvm_message {
-	struct controlvm_message_header hdr;
-	struct controlvm_message_packet cmd;
-} __packed;
-
-/*
- * struct visor_controlvm_channel
- * @struct header:
- * @gp_controlvm:			Guest phys addr of this channel.
- * @gp_partition_tables:		Guest phys addr of partition tables.
- * @gp_diag_guest:			Guest phys addr of diagnostic channel.
- * @gp_boot_romdisk:			Guest phys addr of (read* only) Boot
- *					ROM disk.
- * @gp_boot_ramdisk:			Guest phys addr of writable Boot RAM
- *					disk.
- * @gp_acpi_table:			Guest phys addr of acpi table.
- * @gp_control_channel:			Guest phys addr of control channel.
- * @gp_diag_romdisk:			Guest phys addr of diagnostic ROM disk.
- * @gp_nvram:				Guest phys addr of NVRAM channel.
- * @request_payload_offset:		Offset to request payload area.
- * @event_payload_offset:		Offset to event payload area.
- * @request_payload_bytes:		Bytes available in request payload area.
- * @event_payload_bytes:		Bytes available in event payload area.
- * @control_channel_bytes:
- * @nvram_channel_bytes:		Bytes in PartitionNvram segment.
- * @message_bytes:			sizeof(CONTROLVM_MESSAGE).
- * @message_count:			CONTROLVM_MESSAGE_MAX.
- * @gp_smbios_table:			Guest phys addr of SMBIOS tables.
- * @gp_physical_smbios_table:		Guest phys addr of SMBIOS table.
- * @gp_reserved:			VISOR_MAX_GUESTS_PER_SERVICE.
- * @virtual_guest_firmware_image_base:	Guest physical address of EFI firmware
- *					image base.
- * @virtual_guest_firmware_entry_point:	Guest physical address of EFI firmware
- *					entry point.
- * @virtual_guest_firmware_image_size:	Guest EFI firmware image size.
- * @virtual_guest_firmware_boot_base:	GPA = 1MB where EFI firmware image is
- *					copied to.
- * @virtual_guest_image_base:
- * @virtual_guest_image_size:
- * @prototype_control_channel_offset:
- * @virtual_guest_partition_handle:
- * @restore_action:			Restore Action field to restore the
- *					guest partition.
- * @dump_action:			For Windows guests it shows if the
- *					visordisk is in dump mode.
- * @nvram_fail_count:
- * @saved_crash_message_count:		= CONTROLVM_CRASHMSG_MAX.
- * @saved_crash_message_offset:		Offset to request payload area needed
- *					for crash dump.
- * @installation_error:			Type of error encountered during
- *					installation.
- * @installation_text_id:		Id of string to display.
- * @installation_remaining_steps:	Number of remaining installation steps
- *					(for progress bars).
- * @tool_action:			VISOR_TOOL_ACTIONS Installation Action
- *					field.
- * @reserved: Alignment.
- * @struct efi_visor_ind:
- * @sp_reserved:
- * @reserved2:				Force signals to begin on 128-byte
- *					cache line.
- * @struct request_queue:		Guest partition uses this queue to send
- *					requests to Control.
- * @struct response_queue:		Control uses this queue to respond to
- *					service or guest partition request.
- * @struct event_queue:			Control uses this queue to send events
- *					to guest partition.
- * @struct event_ack_queue:		Service or guest partition uses this
- *					queue to ack Control events.
- * @struct request_msg:			Request fixed-size message pool -
- *					does not include payload.
- * @struct response_msg:		Response fixed-size message pool -
- *					does not include payload.
- * @struct event_msg:			Event fixed-size message pool -
- *					does not include payload.
- * @struct event_ack_msg:		Ack fixed-size message pool -
- *					does not include payload.
- * @struct saved_crash_msg:		Message stored during IOVM creation to
- *					be reused after crash.
- */
-struct visor_controlvm_channel {
-	struct channel_header header;
-	u64 gp_controlvm;
-	u64 gp_partition_tables;
-	u64 gp_diag_guest;
-	u64 gp_boot_romdisk;
-	u64 gp_boot_ramdisk;
-	u64 gp_acpi_table;
-	u64 gp_control_channel;
-	u64 gp_diag_romdisk;
-	u64 gp_nvram;
-	u64 request_payload_offset;
-	u64 event_payload_offset;
-	u32 request_payload_bytes;
-	u32 event_payload_bytes;
-	u32 control_channel_bytes;
-	u32 nvram_channel_bytes;
-	u32 message_bytes;
-	u32 message_count;
-	u64 gp_smbios_table;
-	u64 gp_physical_smbios_table;
-	char gp_reserved[2688];
-	u64 virtual_guest_firmware_image_base;
-	u64 virtual_guest_firmware_entry_point;
-	u64 virtual_guest_firmware_image_size;
-	u64 virtual_guest_firmware_boot_base;
-	u64 virtual_guest_image_base;
-	u64 virtual_guest_image_size;
-	u64 prototype_control_channel_offset;
-	u64 virtual_guest_partition_handle;
-	u16 restore_action;
-	u16 dump_action;
-	u16 nvram_fail_count;
-	u16 saved_crash_message_count;
-	u32 saved_crash_message_offset;
-	u32 installation_error;
-	u32 installation_text_id;
-	u16 installation_remaining_steps;
-	u8 tool_action;
-	u8 reserved;
-	struct efi_visor_indication efi_visor_ind;
-	u32 sp_reserved;
-	u8 reserved2[28];
-	struct signal_queue_header request_queue;
-	struct signal_queue_header response_queue;
-	struct signal_queue_header event_queue;
-	struct signal_queue_header event_ack_queue;
-	struct controlvm_message request_msg[CONTROLVM_MESSAGE_MAX];
-	struct controlvm_message response_msg[CONTROLVM_MESSAGE_MAX];
-	struct controlvm_message event_msg[CONTROLVM_MESSAGE_MAX];
-	struct controlvm_message event_ack_msg[CONTROLVM_MESSAGE_MAX];
-	struct controlvm_message saved_crash_msg[CONTROLVM_CRASHMSG_MAX];
-} __packed;
-
-/*
- * struct visor_controlvm_parameters_header
- *
- * The following header will be located at the beginning of PayloadVmOffset for
- * various ControlVm commands. The receiver of a ControlVm command with a
- * PayloadVmOffset will dereference this address and then use connection_offset,
- * initiator_offset, and target_offset to get the location of UTF-8 formatted
- * strings that can be parsed to obtain command-specific information. The value
- * of total_length should equal PayloadBytes. The format of the strings at
- * PayloadVmOffset will take different forms depending on the message.
- */
-struct visor_controlvm_parameters_header {
-	u32 total_length;
-	u32 header_length;
-	u32 connection_offset;
-	u32 connection_length;
-	u32 initiator_offset;
-	u32 initiator_length;
-	u32 target_offset;
-	u32 target_length;
-	u32 client_offset;
-	u32 client_length;
-	u32 name_offset;
-	u32 name_length;
-	guid_t id;
-	u32 revision;
-	/* Natural alignment */
-	u32 reserved;
-} __packed;
-
-/* General Errors------------------------------------------------------[0-99] */
-#define CONTROLVM_RESP_SUCCESS			   0
-#define CONTROLVM_RESP_ALREADY_DONE		   1
-#define CONTROLVM_RESP_IOREMAP_FAILED		   2
-#define CONTROLVM_RESP_KMALLOC_FAILED		   3
-#define CONTROLVM_RESP_ID_UNKNOWN		   4
-#define CONTROLVM_RESP_ID_INVALID_FOR_CLIENT	   5
-/* CONTROLVM_INIT_CHIPSET-------------------------------------------[100-199] */
-#define CONTROLVM_RESP_CLIENT_SWITCHCOUNT_NONZERO  100
-#define CONTROLVM_RESP_EXPECTED_CHIPSET_INIT	   101
-/* Maximum Limit----------------------------------------------------[200-299] */
-/* BUS_CREATE */
-#define CONTROLVM_RESP_ERROR_MAX_BUSES		   201
-/* DEVICE_CREATE */
-#define CONTROLVM_RESP_ERROR_MAX_DEVICES	   202
-/* Payload and Parameter Related------------------------------------[400-499] */
-/* SWITCH_ATTACHEXTPORT, DEVICE_CONFIGURE */
-#define CONTROLVM_RESP_PAYLOAD_INVALID		   400
-/* Multiple */
-#define CONTROLVM_RESP_INITIATOR_PARAMETER_INVALID 401
-/* DEVICE_CONFIGURE */
-#define CONTROLVM_RESP_TARGET_PARAMETER_INVALID	   402
-/* DEVICE_CONFIGURE */
-#define CONTROLVM_RESP_CLIENT_PARAMETER_INVALID	   403
-/* Specified[Packet Structure] Value--------------------------------[500-599] */
-/* SWITCH_ATTACHINTPORT */
-/* BUS_CONFIGURE, DEVICE_CREATE, DEVICE_CONFIG, DEVICE_DESTROY */
-#define CONTROLVM_RESP_BUS_INVALID		   500
-/* SWITCH_ATTACHINTPORT*/
-/* DEVICE_CREATE, DEVICE_CONFIGURE, DEVICE_DESTROY */
-#define CONTROLVM_RESP_DEVICE_INVALID		   501
-/* DEVICE_CREATE, DEVICE_CONFIGURE */
-#define CONTROLVM_RESP_CHANNEL_INVALID		   502
-/* Partition Driver Callback Interface------------------------------[600-699] */
-/* BUS_CREATE, BUS_DESTROY, DEVICE_CREATE, DEVICE_DESTROY */
-#define CONTROLVM_RESP_VIRTPCI_DRIVER_FAILURE	   604
-/* Unable to invoke VIRTPCI callback. VIRTPCI Callback returned error. */
-/* BUS_CREATE, BUS_DESTROY, DEVICE_CREATE, DEVICE_DESTROY */
-#define CONTROLVM_RESP_VIRTPCI_DRIVER_CALLBACK_ERROR   605
-/* Generic device callback returned error. */
-/* SWITCH_ATTACHEXTPORT, SWITCH_DETACHEXTPORT, DEVICE_CONFIGURE */
-#define CONTROLVM_RESP_GENERIC_DRIVER_CALLBACK_ERROR   606
-/* Bus Related------------------------------------------------------[700-799] */
-/* BUS_DESTROY */
-#define CONTROLVM_RESP_ERROR_BUS_DEVICE_ATTACHED       700
-/* Channel Related--------------------------------------------------[800-899] */
-/* GET_CHANNELINFO, DEVICE_DESTROY */
-#define CONTROLVM_RESP_CHANNEL_TYPE_UNKNOWN	       800
-/* DEVICE_CREATE */
-#define CONTROLVM_RESP_CHANNEL_SIZE_TOO_SMALL	       801
-/* Chipset Shutdown Related---------------------------------------[1000-1099] */
-#define CONTROLVM_RESP_CHIPSET_SHUTDOWN_FAILED	       1000
-#define CONTROLVM_RESP_CHIPSET_SHUTDOWN_ALREADY_ACTIVE 1001
-/* Chipset Stop Related-------------------------------------------[1100-1199] */
-#define CONTROLVM_RESP_CHIPSET_STOP_FAILED_BUS	       1100
-#define CONTROLVM_RESP_CHIPSET_STOP_FAILED_SWITCH      1101
-/* Device Related-------------------------------------------------[1400-1499] */
-#define CONTROLVM_RESP_DEVICE_UDEV_TIMEOUT	       1400
-
-/* __CONTROLVMCHANNEL_H__ */
-#endif