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