/* 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.
*/
static inline unsigned long
__unisys_vmcall_gnuc(unsigned long tuple, unsigned long reg_ebx,
unsigned long reg_ecx)
{
unsigned long result = 0;
unsigned int cpuid_eax, cpuid_ebx, cpuid_ecx, cpuid_edx;
cpuid(0x00000001, &cpuid_eax, &cpuid_ebx, &cpuid_ecx, &cpuid_edx);
if (!(cpuid_ecx & 0x80000000))
return -EPERM;
__asm__ __volatile__(".byte 0x00f, 0x001, 0x0c1" : "=a"(result) :
"a"(tuple), "b"(reg_ebx), "c"(reg_ecx));
return result;
}
static inline unsigned long
__unisys_extended_vmcall_gnuc(unsigned long long tuple,
unsigned long long reg_ebx,
unsigned long long reg_ecx,
unsigned long long reg_edx)
{
unsigned long result = 0;
unsigned int cpuid_eax, cpuid_ebx, cpuid_ecx, cpuid_edx;
cpuid(0x00000001, &cpuid_eax, &cpuid_ebx, &cpuid_ecx, &cpuid_edx);
if (!(cpuid_ecx & 0x80000000))
return -EPERM;
__asm__ __volatile__(".byte 0x00f, 0x001, 0x0c1" : "=a"(result) :
"a"(tuple), "b"(reg_ebx), "c"(reg_ecx), "d"(reg_edx));
return result;
}
#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)
#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))
/* 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;
/******* INFO ON ISSUE_POSTCODE_LINUX() BELOW *******/
enum driver_pc { /* POSTCODE driver identifier tuples */
/* visorbus driver files */
VISOR_BUS_PC = 0xF0,
VISOR_BUS_PC_visorbus_main_c = 0xFF,
VISOR_BUS_PC_visorchipset_c = 0xFE,
};
enum event_pc { /* POSTCODE event identifier tuples */
BUS_CREATE_ENTRY_PC = 0x001,
BUS_CREATE_FAILURE_PC = 0x002,
BUS_CREATE_EXIT_PC = 0x003,
BUS_CONFIGURE_ENTRY_PC = 0x004,
BUS_CONFIGURE_FAILURE_PC = 0x005,
BUS_CONFIGURE_EXIT_PC = 0x006,
CHIPSET_INIT_ENTRY_PC = 0x007,
CHIPSET_INIT_SUCCESS_PC = 0x008,
CHIPSET_INIT_FAILURE_PC = 0x009,
CHIPSET_INIT_EXIT_PC = 0x00A,
CONTROLVM_INIT_FAILURE_PC = 0x00B,
DEVICE_CREATE_ENTRY_PC = 0x00C,
DEVICE_CREATE_FAILURE_PC = 0x00D,
DEVICE_CREATE_SUCCESS_PC = 0x00E,
DEVICE_CREATE_EXIT_PC = 0x00F,
DEVICE_ADD_PC = 0x010,
DEVICE_REGISTER_FAILURE_PC = 0x011,
DEVICE_CHANGESTATE_FAILURE_PC = 0x012,
DRIVER_ENTRY_PC = 0x013,
DRIVER_EXIT_PC = 0x014,
MALLOC_FAILURE_PC = 0x015,
CRASH_DEV_ENTRY_PC = 0x016,
CRASH_DEV_EXIT_PC = 0x017,
CRASH_DEV_RD_BUS_FAILURE_PC = 0x018,
CRASH_DEV_RD_DEV_FAILURE_PC = 0x019,
CRASH_DEV_BUS_NULL_FAILURE_PC = 0x01A,
CRASH_DEV_DEV_NULL_FAILURE_PC = 0x01B,
CRASH_DEV_CTRL_RD_FAILURE_PC = 0x01C,
CRASH_DEV_COUNT_FAILURE_PC = 0x01D,
SAVE_MSG_BUS_FAILURE_PC = 0x01E,
SAVE_MSG_DEV_FAILURE_PC = 0x01F,
};
/* Write a 64-bit value to the hypervisor's log file
* POSTCODE_LINUX generates a value in the form 0xAABBBCCCDDDDEEEE where
* A is an identifier for the file logging the postcode
* B is an identifier for the event logging the postcode
* C is the line logging the postcode
* D is additional information the caller wants to log
* E is additional information the caller wants to log
* Please also note that the resulting postcode is in hex, so if you are
* searching for the __LINE__ number, convert it first to decimal. The line
* number combined with driver and type of call, will allow you to track down
* exactly what line an error occurred on, or where the last driver
* entered/exited from.
*/
#define POSTCODE_LINUX(EVENT_PC, pc16bit1, pc16bit2, severity) \
do { \
unsigned long long post_code_temp; \
post_code_temp = (((u64)CURRENT_FILE_PC) << 56) | \
(((u64)EVENT_PC) << 44) | \
((((u64)__LINE__) & 0xFFF) << 32) | \
((((u64)pc16bit1) & 0xFFFF) << 16) | \
(((u64)pc16bit2) & 0xFFFF); \
unisys_extended_vmcall(VMCALL_POST_CODE_LOGEVENT, severity, \
MDS_APPOS, post_code_temp); \
} while (0)
#endif /* __IOMONINTF_H__ */