Release 4.7 drivers/staging/unisys/visorbus/vmcallinterface.h
/* 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 __IOMONINTF_H__
#define __IOMONINTF_H__
/*
* This file contains all structures needed to support the VMCALLs for IO
* Virtualization. The VMCALLs are provided by Monitor and used by IO code
* running on IO Partitions.
*/
#ifdef __GNUC__
#include "iovmcall_gnuc.h"
#endif /* */
#include "diagchannel.h"
#ifdef VMCALL_IO_CONTROLVM_ADDR
#undef VMCALL_IO_CONTROLVM_ADDR
#endif /* */
/* define subsystem number for AppOS, used in uislib driver */
#define MDS_APPOS 0x4000000000000000L
/* subsystem = 62 - AppOS */
enum vmcall_monitor_interface_method_tuple { /* VMCALL identification tuples */
/* Note: when a new VMCALL is added:
* - the 1st 2 hex digits correspond to one of the
* VMCALL_MONITOR_INTERFACE types and
* - the next 2 hex digits are the nth relative instance of within a
* type
* E.G. for VMCALL_VIRTPART_RECYCLE_PART,
* - the 0x02 identifies it as a VMCALL_VIRTPART type and
* - the 0x01 identifies it as the 1st instance of a VMCALL_VIRTPART
* type of VMCALL
*/
/* used by all Guests, not just IO */
VMCALL_IO_CONTROLVM_ADDR = 0x0501,
/* Allow caller to query virtual time offset */
VMCALL_QUERY_GUEST_VIRTUAL_TIME_OFFSET = 0x0708,
/* LOGEVENT Post Code (RDX) with specified subsystem mask */
/* (RCX - monitor_subsystems.h) and severity (RDX) */
VMCALL_POST_CODE_LOGEVENT = 0x070B,
/* Allow ULTRA_SERVICE_CAPABILITY_TIME capable guest to make VMCALL */
VMCALL_UPDATE_PHYSICAL_TIME = 0x0a02
};
#define VMCALL_SUCCESS 0
#define VMCALL_SUCCESSFUL(result) (result == 0)
#ifdef __GNUC__
#define unisys_vmcall(tuple, reg_ebx, reg_ecx) \
__unisys_vmcall_gnuc(tuple, reg_ebx, reg_ecx)
#define unisys_extended_vmcall(tuple, reg_ebx, reg_ecx, reg_edx) \
__unisys_extended_vmcall_gnuc(tuple, reg_ebx, reg_ecx, reg_edx)
#define ISSUE_IO_VMCALL(method, param, result) \
(result = unisys_vmcall(method, (param) & 0xFFFFFFFF, \
(param) >> 32))
#define ISSUE_IO_EXTENDED_VMCALL(method, param1, param2, param3) \
unisys_extended_vmcall(method, param1, param2, param3)
/* The following uses VMCALL_POST_CODE_LOGEVENT interface but is currently
* not used much
*/
#define ISSUE_IO_VMCALL_POSTCODE_SEVERITY(postcode, severity) \
ISSUE_IO_EXTENDED_VMCALL(VMCALL_POST_CODE_LOGEVENT, severity, \
MDS_APPOS, postcode)
#endif
/* Structures for IO VMCALLs */
/* Parameters to VMCALL_IO_CONTROLVM_ADDR interface */
struct vmcall_io_controlvm_addr_params {
/* The Guest-relative physical address of the ControlVm channel. */
/* This VMCall fills this in with the appropriate address. */
u64 address; /* contents provided by this VMCALL (OUT) */
/* the size of the ControlVm channel in bytes This VMCall fills this */
/* in with the appropriate address. */
u32 channel_bytes; /* contents provided by this VMCALL (OUT) */
u8 unused[4]; /* Unused Bytes in the 64-Bit Aligned Struct */
}
__packed;
#endif /* __IOMONINTF_H__ */
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