/* Copyright (C) 2010 - 2015 UNISYS CORPORATION * All rights reserved. * * 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 that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or * NON INFRINGEMENT. See the GNU General Public License for more * details. */ #ifndef __CONTROLVMCHANNEL_H__ #define __CONTROLVMCHANNEL_H__ #include #include "channel.h" /* {2B3C2D10-7EF5-4ad8-B966-3448B7386B3D} */ #define SPAR_CONTROLVM_CHANNEL_PROTOCOL_UUID \ UUID_LE(0x2b3c2d10, 0x7ef5, 0x4ad8, \ 0xb9, 0x66, 0x34, 0x48, 0xb7, 0x38, 0x6b, 0x3d) #define ULTRA_CONTROLVM_CHANNEL_PROTOCOL_SIGNATURE \ ULTRA_CHANNEL_PROTOCOL_SIGNATURE #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 ULTRA_CONTROLVM_CHANNEL_PROTOCOL_VERSIONID 1 #define SPAR_CONTROLVM_CHANNEL_OK_CLIENT(ch) \ spar_check_channel_client(ch, \ SPAR_CONTROLVM_CHANNEL_PROTOCOL_UUID, \ "controlvm", \ sizeof(struct spar_controlvm_channel_protocol), \ ULTRA_CONTROLVM_CHANNEL_PROTOCOL_VERSIONID, \ ULTRA_CONTROLVM_CHANNEL_PROTOCOL_SIGNATURE) #define MAX_SERIAL_NUM 32 /* 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 spar_segment_state { u16 enabled:1; /* Bit 0: May enter other states */ u16 active:1; /* Bit 1: Assigned to active partition */ u16 alive:1; /* Bit 2: Configure message sent to * service/server */ u16 revoked:1; /* Bit 3: similar to partition state * ShuttingDown */ u16 allocated:1; /* Bit 4: memory (device/port number) * has been selected by Command */ u16 known:1; /* Bit 5: has been introduced to the * service/guest partition */ u16 ready:1; /* Bit 6: service/Guest partition has * responded to introduction */ u16 operating:1; /* Bit 7: resource is configured and * operating */ /* Note: don't use high bit unless we need to switch to ushort * which is non-compliant */ }; static const struct spar_segment_state segment_state_running = { 1, 1, 1, 0, 1, 1, 1, 1 }; static const struct spar_segment_state segment_state_paused = { 1, 1, 1, 0, 1, 1, 1, 0 }; static const struct spar_segment_state segment_state_standby = { 1, 1, 0, 0, 1, 1, 1, 0 }; /* 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, /* CP --> SP, GP */ CONTROLVM_BUS_DESTROY = 0x102, /* CP --> SP, GP */ CONTROLVM_BUS_CONFIGURE = 0x104, /* CP --> SP */ CONTROLVM_BUS_CHANGESTATE = 0x105, /* CP --> SP, GP */ CONTROLVM_BUS_CHANGESTATE_EVENT = 0x106, /* SP, GP --> CP */ /* DEVICE commands required Parameter: BusNumber, DeviceNumber */ CONTROLVM_DEVICE_CREATE = 0x201, /* CP --> SP, GP */ CONTROLVM_DEVICE_DESTROY = 0x202, /* CP --> SP, GP */ CONTROLVM_DEVICE_CONFIGURE = 0x203, /* CP --> SP */ CONTROLVM_DEVICE_CHANGESTATE = 0x204, /* CP --> SP, GP */ CONTROLVM_DEVICE_CHANGESTATE_EVENT = 0x205, /* SP, GP --> CP */ CONTROLVM_DEVICE_RECONFIGURE = 0x206, /* CP --> Boot */ /* CHIPSET commands */ CONTROLVM_CHIPSET_INIT = 0x301, /* CP --> SP, GP */ CONTROLVM_CHIPSET_STOP = 0x302, /* CP --> SP, GP */ CONTROLVM_CHIPSET_READY = 0x304, /* CP --> SP */ CONTROLVM_CHIPSET_SELFTEST = 0x305, /* CP --> SP */ }; struct irq_info { u64 reserved1; /* 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. */ u64 recv_irq_handle; /* specifies interrupt vector. It, interrupt pin, and shared are * used to connect to the corresponding interrupt. Used by * IOPart-GP only. */ u32 recv_irq_vector; /* 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. */ u8 recv_irq_shared; u8 reserved[3]; /* Natural alignment purposes */ }; struct pci_id { u16 domain; u8 bus; u8 slot; u8 func; u8 reserved[3]; /* Natural alignment purposes */ }; struct efi_spar_indication { u64 boot_to_fw_ui:1; /* Bit 0: Stop in uefi ui */ u64 clear_nvram:1; /* Bit 1: Clear NVRAM */ u64 clear_cmos:1; /* Bit 2: Clear CMOS */ u64 boot_to_tool:1; /* Bit 3: Run install tool */ /* remaining bits are available */ }; enum ultra_chipset_feature { ULTRA_CHIPSET_FEATURE_REPLY = 0x00000001, ULTRA_CHIPSET_FEATURE_PARA_HOTPLUG = 0x00000002, }; /* 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; /* See CONTROLVM_ID. */ /* For requests, indicates the message type. */ /* For responses, indicates the type of message we are responding to. */ u32 message_size; /* Includes size of this struct + size * of message */ u32 segment_index; /* Index of segment containing Vm * message/information */ u32 completion_status; /* Error status code or result of * message completion */ struct { u32 failed:1; /* =1 in a response to * signify * failure */ u32 response_expected:1; /* =1 in all messages that expect a * response (Control ignores this * bit) */ u32 server:1; /* =1 in all bus & device-related * messages where the message * receiver is to act as the bus or * device server */ u32 test_message:1; /* =1 for testing use only * (Control and Command ignore this * bit) */ u32 partial_completion:1; /* =1 if there are forthcoming * responses/acks associated * with this message */ u32 preserve:1; /* =1 this is to let us know to * preserve channel contents * (for running guests)*/ u32 writer_in_diag:1; /* =1 the DiagWriter is active in the * Diagnostic Partition*/ } flags; u32 reserved; /* Natural alignment */ u64 message_handle; /* Identifies the particular message instance, * and is used to match particular */ /* request instances with the corresponding response instance. */ u64 payload_vm_offset; /* Offset of payload area from start of this * instance of ControlVm segment */ u32 payload_max_bytes; /* Maximum bytes allocated in payload * area of ControlVm segment */ u32 payload_bytes; /* Actual number of bytes of payload * area to copy between IO/Command; */ /* if non-zero, there is a payload to copy. */ }; struct controlvm_packet_device_create { u32 bus_no; /* bus # (0..n-1) from the msg receiver's end */ u32 dev_no; /* bus-relative (0..n-1) device number */ u64 channel_addr; /* Guest physical address of the channel, which * can be dereferenced by the receiver of this * ControlVm command */ u64 channel_bytes; /* specifies size of the channel in bytes */ uuid_le data_type_uuid; /* specifies format of data in channel */ uuid_le dev_inst_uuid; /* instance guid for the device */ struct irq_info intr; /* specifies interrupt information */ }; /* for CONTROLVM_DEVICE_CREATE */ struct controlvm_packet_device_configure { u32 bus_no; /* bus # (0..n-1) from the msg * receiver's perspective */ /* Control uses header SegmentIndex field to access bus number... */ u32 dev_no; /* bus-relative (0..n-1) device number */ } ; /* for CONTROLVM_DEVICE_CONFIGURE */ struct controlvm_message_device_create { struct controlvm_message_header header; struct controlvm_packet_device_create packet; }; /* total 128 bytes */ struct controlvm_message_device_configure { struct controlvm_message_header header; struct controlvm_packet_device_configure packet; }; /* total 56 bytes */ /* This is the format for a message in any ControlVm queue. */ struct controlvm_message_packet { union { struct { u32 bus_no; /* bus # (0..n-1) from the msg * receiver's perspective */ u32 dev_count; /* indicates the max number of * devices on this bus */ u64 channel_addr; /* Guest physical address of * the channel, which can be * dereferenced by the receiver * of this ControlVm command */ u64 channel_bytes; /* size of the channel */ uuid_le bus_data_type_uuid; /* indicates format of * data in bus channel*/ uuid_le bus_inst_uuid; /* instance uuid for the bus */ } create_bus; /* for CONTROLVM_BUS_CREATE */ struct { u32 bus_no; /* bus # (0..n-1) from the msg * receiver's perspective */ u32 reserved; /* Natural alignment purposes */ } destroy_bus; /* for CONTROLVM_BUS_DESTROY */ struct { u32 bus_no; /* bus # (0..n-1) from the receiver's * perspective */ u32 reserved1; /* for alignment purposes */ u64 guest_handle; /* This is used to convert * guest physical address to * physical address */ u64 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. */ } configure_bus; /* for CONTROLVM_BUS_CONFIGURE */ /* for CONTROLVM_DEVICE_CREATE */ struct controlvm_packet_device_create create_device; struct { u32 bus_no; /* bus # (0..n-1) from the msg * receiver's perspective */ u32 dev_no; /* bus-relative (0..n-1) device # */ } destroy_device; /* for CONTROLVM_DEVICE_DESTROY */ /* for CONTROLVM_DEVICE_CONFIGURE */ struct controlvm_packet_device_configure configure_device; struct { u32 bus_no; /* bus # (0..n-1) from the msg * receiver's perspective */ u32 dev_no; /* bus-relative (0..n-1) device # */ } reconfigure_device; /* for CONTROLVM_DEVICE_RECONFIGURE */ struct { u32 bus_no; struct spar_segment_state state; u8 reserved[2]; /* Natural alignment purposes */ } bus_change_state; /* for CONTROLVM_BUS_CHANGESTATE */ struct { u32 bus_no; u32 dev_no; struct spar_segment_state state; struct { u32 phys_device:1; /* =1 if message is for * a physical device */ } flags; u8 reserved[2]; /* Natural alignment purposes */ } device_change_state; /* for CONTROLVM_DEVICE_CHANGESTATE */ struct { u32 bus_no; u32 dev_no; struct spar_segment_state state; u8 reserved[6]; /* Natural alignment purposes */ } device_change_state_event; /* for CONTROLVM_DEVICE_CHANGESTATE_EVENT */ struct { u32 bus_count; /* indicates the max number of busses */ u32 switch_count; /* indicates the max number of * switches if a service partition */ enum ultra_chipset_feature features; u32 platform_number; /* Platform Number */ } init_chipset; /* for CONTROLVM_CHIPSET_INIT */ struct { u32 options; /* reserved */ u32 test; /* bit 0 set to run embedded selftest */ } chipset_selftest; /* for CONTROLVM_CHIPSET_SELFTEST */ u64 addr; /* a physical address of something, that can be * dereferenced by the receiver of this * ControlVm command (depends on command id) */ u64 handle; /* a handle of something (depends on command * id) */ }; }; /* All messages in any ControlVm queue have this layout. */ struct controlvm_message { struct controlvm_message_header hdr; struct controlvm_message_packet cmd; }; struct spar_controlvm_channel_protocol { struct channel_header header; u64 gp_controlvm; /* guest phys addr of this channel */ u64 gp_partition_tables;/* guest phys addr of partition tables */ u64 gp_diag_guest; /* guest phys addr of diagnostic channel */ u64 gp_boot_romdisk;/* guest phys addr of (read* only) Boot ROM disk */ u64 gp_boot_ramdisk;/* guest phys addr of writable Boot RAM disk */ u64 gp_acpi_table; /* guest phys addr of acpi table */ u64 gp_control_channel;/* guest phys addr of control channel */ u64 gp_diag_romdisk;/* guest phys addr of diagnostic ROM disk */ u64 gp_nvram; /* guest phys addr of NVRAM channel */ u64 request_payload_offset; /* Offset to request payload area */ u64 event_payload_offset; /* Offset to event payload area */ u32 request_payload_bytes; /* Bytes available in request payload * area */ u32 event_payload_bytes;/* Bytes available in event payload area */ u32 control_channel_bytes; u32 nvram_channel_bytes; /* Bytes in PartitionNvram segment */ u32 message_bytes; /* sizeof(CONTROLVM_MESSAGE) */ u32 message_count; /* CONTROLVM_MESSAGE_MAX */ u64 gp_smbios_table; /* guest phys addr of SMBIOS tables */ u64 gp_physical_smbios_table; /* guest phys addr of SMBIOS table */ /* ULTRA_MAX_GUESTS_PER_SERVICE */ char gp_reserved[2688]; /* guest physical address of EFI firmware image base */ u64 virtual_guest_firmware_image_base; /* guest physical address of EFI firmware entry point */ u64 virtual_guest_firmware_entry_point; /* guest EFI firmware image size */ u64 virtual_guest_firmware_image_size; /* GPA = 1MB where EFI firmware image is copied to */ 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; /* Restore Action field to restore the guest * partition */ u16 dump_action; /* For Windows guests it shows if the visordisk * is running in dump mode */ u16 nvram_fail_count; u16 saved_crash_message_count; /* = CONTROLVM_CRASHMSG_MAX */ u32 saved_crash_message_offset; /* Offset to request payload area needed * for crash dump */ u32 installation_error; /* Type of error encountered during * installation */ u32 installation_text_id; /* Id of string to display */ u16 installation_remaining_steps;/* Number of remaining installation * steps (for progress bars) */ u8 tool_action; /* ULTRA_TOOL_ACTIONS Installation Action * field */ u8 reserved; /* alignment */ struct efi_spar_indication efi_spar_ind; struct efi_spar_indication efi_spar_ind_supported; u32 sp_reserved; u8 reserved2[28]; /* Force signals to begin on 128-byte cache * line */ struct signal_queue_header request_queue;/* Service or guest partition * uses this queue to send * requests to Control */ struct signal_queue_header response_queue;/* Control uses this queue to * respond to service or guest * partition requests */ struct signal_queue_header event_queue; /* Control uses this queue to * send events to service or * guest partition */ struct signal_queue_header event_ack_queue;/* Service or guest partition * uses this queue to ack * Control events */ /* Request fixed-size message pool - does not include payload */ struct controlvm_message request_msg[CONTROLVM_MESSAGE_MAX]; /* Response fixed-size message pool - does not include payload */ struct controlvm_message response_msg[CONTROLVM_MESSAGE_MAX]; /* Event fixed-size message pool - does not include payload */ struct controlvm_message event_msg[CONTROLVM_MESSAGE_MAX]; /* Ack fixed-size message pool - does not include payload */ struct controlvm_message event_ack_msg[CONTROLVM_MESSAGE_MAX]; /* Message stored during IOVM creation to be reused after crash */ struct controlvm_message saved_crash_msg[CONTROLVM_CRASHMSG_MAX]; }; /* Offsets for VM channel attributes */ #define VM_CH_REQ_QUEUE_OFFSET \ offsetof(struct spar_controlvm_channel_protocol, request_queue) #define VM_CH_RESP_QUEUE_OFFSET \ offsetof(struct spar_controlvm_channel_protocol, response_queue) #define VM_CH_EVENT_QUEUE_OFFSET \ offsetof(struct spar_controlvm_channel_protocol, event_queue) #define VM_CH_ACK_QUEUE_OFFSET \ offsetof(struct spar_controlvm_channel_protocol, event_ack_queue) #define VM_CH_REQ_MSG_OFFSET \ offsetof(struct spar_controlvm_channel_protocol, request_msg) #define VM_CH_RESP_MSG_OFFSET \ offsetof(struct spar_controlvm_channel_protocol, response_msg) #define VM_CH_EVENT_MSG_OFFSET \ offsetof(struct spar_controlvm_channel_protocol, event_msg) #define VM_CH_ACK_MSG_OFFSET \ offsetof(struct spar_controlvm_channel_protocol, event_ack_msg) #define VM_CH_CRASH_MSG_OFFSET \ offsetof(struct spar_controlvm_channel_protocol, saved_crash_msg) /* 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 spar_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; uuid_le id; u32 revision; u32 reserved; /* Natural alignment */ }; #endif /* __CONTROLVMCHANNEL_H__ */