/*
* Copyright (c) 2007-2008 The Hewlett-Packard Development Company
* All rights reserved.
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Gabe Black
*/
#ifndef __ARCH_X86_MISCREGS_HH__
#define __ARCH_X86_MISCREGS_HH__
#include "arch/x86/regs/segment.hh"
#include "arch/x86/x86_traits.hh"
#include "base/bitunion.hh"
#include "base/logging.hh"
//These get defined in some system headers (at least termbits.h). That confuses
//things here significantly.
#undef CR0
#undef CR2
#undef CR3
namespace X86ISA
{
enum CondFlagBit {
CFBit = 1 << 0,
PFBit = 1 << 2,
ECFBit = 1 << 3,
AFBit = 1 << 4,
EZFBit = 1 << 5,
ZFBit = 1 << 6,
SFBit = 1 << 7,
DFBit = 1 << 10,
OFBit = 1 << 11
};
const uint32_t cfofMask = CFBit | OFBit;
const uint32_t ccFlagMask = PFBit | AFBit | ZFBit | SFBit;
enum RFLAGBit {
TFBit = 1 << 8,
IFBit = 1 << 9,
NTBit = 1 << 14,
RFBit = 1 << 16,
VMBit = 1 << 17,
ACBit = 1 << 18,
VIFBit = 1 << 19,
VIPBit = 1 << 20,
IDBit = 1 << 21
};
enum X87StatusBit {
// Exception Flags
IEBit = 1 << 0,
DEBit = 1 << 1,
ZEBit = 1 << 2,
OEBit = 1 << 3,
UEBit = 1 << 4,
PEBit = 1 << 5,
// !Exception Flags
StackFaultBit = 1 << 6,
ErrSummaryBit = 1 << 7,
CC0Bit = 1 << 8,
CC1Bit = 1 << 9,
CC2Bit = 1 << 10,
CC3Bit = 1 << 14,
BusyBit = 1 << 15,
};
enum MiscRegIndex
{
// Control registers
// Most of these are invalid. See isValidMiscReg() below.
MISCREG_CR_BASE,
MISCREG_CR0 = MISCREG_CR_BASE,
MISCREG_CR1,
MISCREG_CR2,
MISCREG_CR3,
MISCREG_CR4,
MISCREG_CR5,
MISCREG_CR6,
MISCREG_CR7,
MISCREG_CR8,
MISCREG_CR9,
MISCREG_CR10,
MISCREG_CR11,
MISCREG_CR12,
MISCREG_CR13,
MISCREG_CR14,
MISCREG_CR15,
// Debug registers
MISCREG_DR_BASE = MISCREG_CR_BASE + NumCRegs,
MISCREG_DR0 = MISCREG_DR_BASE,
MISCREG_DR1,
MISCREG_DR2,
MISCREG_DR3,
MISCREG_DR4,
MISCREG_DR5,
MISCREG_DR6,
MISCREG_DR7,
// Flags register
MISCREG_RFLAGS = MISCREG_DR_BASE + NumDRegs,
//Register to keep handy values like the CPU mode in.
MISCREG_M5_REG,
/*
* Model Specific Registers
*/
// Time stamp counter
MISCREG_TSC,
MISCREG_MTRRCAP,
MISCREG_SYSENTER_CS,
MISCREG_SYSENTER_ESP,
MISCREG_SYSENTER_EIP,
MISCREG_MCG_CAP,
MISCREG_MCG_STATUS,
MISCREG_MCG_CTL,
MISCREG_DEBUG_CTL_MSR,
MISCREG_LAST_BRANCH_FROM_IP,
MISCREG_LAST_BRANCH_TO_IP,
MISCREG_LAST_EXCEPTION_FROM_IP,
MISCREG_LAST_EXCEPTION_TO_IP,
MISCREG_MTRR_PHYS_BASE_BASE,
MISCREG_MTRR_PHYS_BASE_0 = MISCREG_MTRR_PHYS_BASE_BASE,
MISCREG_MTRR_PHYS_BASE_1,
MISCREG_MTRR_PHYS_BASE_2,
MISCREG_MTRR_PHYS_BASE_3,
MISCREG_MTRR_PHYS_BASE_4,
MISCREG_MTRR_PHYS_BASE_5,
MISCREG_MTRR_PHYS_BASE_6,
MISCREG_MTRR_PHYS_BASE_7,
MISCREG_MTRR_PHYS_BASE_END,
MISCREG_MTRR_PHYS_MASK_BASE = MISCREG_MTRR_PHYS_BASE_END,
MISCREG_MTRR_PHYS_MASK_0 = MISCREG_MTRR_PHYS_MASK_BASE,
MISCREG_MTRR_PHYS_MASK_1,
MISCREG_MTRR_PHYS_MASK_2,
MISCREG_MTRR_PHYS_MASK_3,
MISCREG_MTRR_PHYS_MASK_4,
MISCREG_MTRR_PHYS_MASK_5,
MISCREG_MTRR_PHYS_MASK_6,
MISCREG_MTRR_PHYS_MASK_7,
MISCREG_MTRR_PHYS_MASK_END,
MISCREG_MTRR_FIX_64K_00000 = MISCREG_MTRR_PHYS_MASK_END,
MISCREG_MTRR_FIX_16K_80000,
MISCREG_MTRR_FIX_16K_A0000,
MISCREG_MTRR_FIX_4K_C0000,
MISCREG_MTRR_FIX_4K_C8000,
MISCREG_MTRR_FIX_4K_D0000,
MISCREG_MTRR_FIX_4K_D8000,
MISCREG_MTRR_FIX_4K_E0000,
MISCREG_MTRR_FIX_4K_E8000,
MISCREG_MTRR_FIX_4K_F0000,
MISCREG_MTRR_FIX_4K_F8000,
MISCREG_PAT,
MISCREG_DEF_TYPE,
MISCREG_MC_CTL_BASE,
MISCREG_MC0_CTL = MISCREG_MC_CTL_BASE,
MISCREG_MC1_CTL,
MISCREG_MC2_CTL,
MISCREG_MC3_CTL,
MISCREG_MC4_CTL,
MISCREG_MC5_CTL,
MISCREG_MC6_CTL,
MISCREG_MC7_CTL,
MISCREG_MC_CTL_END,
MISCREG_MC_STATUS_BASE = MISCREG_MC_CTL_END,
MISCREG_MC0_STATUS = MISCREG_MC_STATUS_BASE,
MISCREG_MC1_STATUS,
MISCREG_MC2_STATUS,
MISCREG_MC3_STATUS,
MISCREG_MC4_STATUS,
MISCREG_MC5_STATUS,
MISCREG_MC6_STATUS,
MISCREG_MC7_STATUS,
MISCREG_MC_STATUS_END,
MISCREG_MC_ADDR_BASE = MISCREG_MC_STATUS_END,
MISCREG_MC0_ADDR = MISCREG_MC_ADDR_BASE,
MISCREG_MC1_ADDR,
MISCREG_MC2_ADDR,
MISCREG_MC3_ADDR,
MISCREG_MC4_ADDR,
MISCREG_MC5_ADDR,
MISCREG_MC6_ADDR,
MISCREG_MC7_ADDR,
MISCREG_MC_ADDR_END,
MISCREG_MC_MISC_BASE = MISCREG_MC_ADDR_END,
MISCREG_MC0_MISC = MISCREG_MC_MISC_BASE,
MISCREG_MC1_MISC,
MISCREG_MC2_MISC,
MISCREG_MC3_MISC,
MISCREG_MC4_MISC,
MISCREG_MC5_MISC,
MISCREG_MC6_MISC,
MISCREG_MC7_MISC,
MISCREG_MC_MISC_END,
// Extended feature enable register
MISCREG_EFER = MISCREG_MC_MISC_END,
MISCREG_STAR,
MISCREG_LSTAR,
MISCREG_CSTAR,
MISCREG_SF_MASK,
MISCREG_KERNEL_GS_BASE,
MISCREG_TSC_AUX,
MISCREG_PERF_EVT_SEL_BASE,
MISCREG_PERF_EVT_SEL0 = MISCREG_PERF_EVT_SEL_BASE,
MISCREG_PERF_EVT_SEL1,
MISCREG_PERF_EVT_SEL2,
MISCREG_PERF_EVT_SEL3,
MISCREG_PERF_EVT_SEL_END,
MISCREG_PERF_EVT_CTR_BASE = MISCREG_PERF_EVT_SEL_END,
MISCREG_PERF_EVT_CTR0 = MISCREG_PERF_EVT_CTR_BASE,
MISCREG_PERF_EVT_CTR1,
MISCREG_PERF_EVT_CTR2,
MISCREG_PERF_EVT_CTR3,
MISCREG_PERF_EVT_CTR_END,
MISCREG_SYSCFG = MISCREG_PERF_EVT_CTR_END,
MISCREG_IORR_BASE_BASE,
MISCREG_IORR_BASE0 = MISCREG_IORR_BASE_BASE,
MISCREG_IORR_BASE1,
MISCREG_IORR_BASE_END,
MISCREG_IORR_MASK_BASE = MISCREG_IORR_BASE_END,
MISCREG_IORR_MASK0 = MISCREG_IORR_MASK_BASE,
MISCREG_IORR_MASK1,
MISCREG_IORR_MASK_END,
MISCREG_TOP_MEM = MISCREG_IORR_MASK_END,
MISCREG_TOP_MEM2,
MISCREG_VM_CR,
MISCREG_IGNNE,
MISCREG_SMM_CTL,
MISCREG_VM_HSAVE_PA,
/*
* Segment registers
*/
// Segment selectors
MISCREG_SEG_SEL_BASE,
MISCREG_ES = MISCREG_SEG_SEL_BASE,
MISCREG_CS,
MISCREG_SS,
MISCREG_DS,
MISCREG_FS,
MISCREG_GS,
MISCREG_HS,
MISCREG_TSL,
MISCREG_TSG,
MISCREG_LS,
MISCREG_MS,
MISCREG_TR,
MISCREG_IDTR,
// Hidden segment base field
MISCREG_SEG_BASE_BASE = MISCREG_SEG_SEL_BASE + NUM_SEGMENTREGS,
MISCREG_ES_BASE = MISCREG_SEG_BASE_BASE,
MISCREG_CS_BASE,
MISCREG_SS_BASE,
MISCREG_DS_BASE,
MISCREG_FS_BASE,
MISCREG_GS_BASE,
MISCREG_HS_BASE,
MISCREG_TSL_BASE,
MISCREG_TSG_BASE,
MISCREG_LS_BASE,
MISCREG_MS_BASE,
MISCREG_TR_BASE,
MISCREG_IDTR_BASE,
// The effective segment base, ie what is actually added to an
// address. In 64 bit mode this can be different from the above,
// namely 0.
MISCREG_SEG_EFF_BASE_BASE = MISCREG_SEG_BASE_BASE + NUM_SEGMENTREGS,
MISCREG_ES_EFF_BASE = MISCREG_SEG_EFF_BASE_BASE,
MISCREG_CS_EFF_BASE,
MISCREG_SS_EFF_BASE,
MISCREG_DS_EFF_BASE,
MISCREG_FS_EFF_BASE,
MISCREG_GS_EFF_BASE,
MISCREG_HS_EFF_BASE,
MISCREG_TSL_EFF_BASE,
MISCREG_TSG_EFF_BASE,
MISCREG_LS_EFF_BASE,
MISCREG_MS_EFF_BASE,
MISCREG_TR_EFF_BASE,
MISCREG_IDTR_EFF_BASE,
// Hidden segment limit field
MISCREG_SEG_LIMIT_BASE = MISCREG_SEG_EFF_BASE_BASE + NUM_SEGMENTREGS,
MISCREG_ES_LIMIT = MISCREG_SEG_LIMIT_BASE,
MISCREG_CS_LIMIT,
MISCREG_SS_LIMIT,
MISCREG_DS_LIMIT,
MISCREG_FS_LIMIT,
MISCREG_GS_LIMIT,
MISCREG_HS_LIMIT,
MISCREG_TSL_LIMIT,
MISCREG_TSG_LIMIT,
MISCREG_LS_LIMIT,
MISCREG_MS_LIMIT,
MISCREG_TR_LIMIT,
MISCREG_IDTR_LIMIT,
// Hidden segment limit attributes
MISCREG_SEG_ATTR_BASE = MISCREG_SEG_LIMIT_BASE + NUM_SEGMENTREGS,
MISCREG_ES_ATTR = MISCREG_SEG_ATTR_BASE,
MISCREG_CS_ATTR,
MISCREG_SS_ATTR,
MISCREG_DS_ATTR,
MISCREG_FS_ATTR,
MISCREG_GS_ATTR,
MISCREG_HS_ATTR,
MISCREG_TSL_ATTR,
MISCREG_TSG_ATTR,
MISCREG_LS_ATTR,
MISCREG_MS_ATTR,
MISCREG_TR_ATTR,
MISCREG_IDTR_ATTR,
// Floating point control registers
MISCREG_X87_TOP =
MISCREG_SEG_ATTR_BASE + NUM_SEGMENTREGS,
MISCREG_MXCSR,
MISCREG_FCW,
MISCREG_FSW,
MISCREG_FTW,
MISCREG_FTAG,
MISCREG_FISEG,
MISCREG_FIOFF,
MISCREG_FOSEG,
MISCREG_FOOFF,
MISCREG_FOP,
//XXX Add "Model-Specific Registers"
MISCREG_APIC_BASE,
// "Fake" MSRs for internally implemented devices
MISCREG_PCI_CONFIG_ADDRESS,
NUM_MISCREGS
};
static inline bool
isValidMiscReg(int index)
{
return (index >= MISCREG_CR0 && index < NUM_MISCREGS &&
index != MISCREG_CR1 &&
!(index > MISCREG_CR4 && index < MISCREG_CR8) &&
!(index > MISCREG_CR8 && index <= MISCREG_CR15));
}
static inline MiscRegIndex
MISCREG_CR(int index)
{
assert(index >= 0 && index < NumCRegs);
return (MiscRegIndex)(MISCREG_CR_BASE + index);
}
static inline MiscRegIndex
MISCREG_DR(int index)
{
assert(index >= 0 && index < NumDRegs);
return (MiscRegIndex)(MISCREG_DR_BASE + index);
}
static inline MiscRegIndex
MISCREG_MTRR_PHYS_BASE(int index)
{
assert(index >= 0 && index < (MISCREG_MTRR_PHYS_BASE_END -
MISCREG_MTRR_PHYS_BASE_BASE));
return (MiscRegIndex)(MISCREG_MTRR_PHYS_BASE_BASE + index);
}
static inline MiscRegIndex
MISCREG_MTRR_PHYS_MASK(int index)
{
assert(index >= 0 && index < (MISCREG_MTRR_PHYS_MASK_END -
MISCREG_MTRR_PHYS_MASK_BASE));
return (MiscRegIndex)(MISCREG_MTRR_PHYS_MASK_BASE + index);
}
static inline MiscRegIndex
MISCREG_MC_CTL(int index)
{
assert(index >= 0 && index < (MISCREG_MC_CTL_END -
MISCREG_MC_CTL_BASE));
return (MiscRegIndex)(MISCREG_MC_CTL_BASE + index);
}
static inline MiscRegIndex
MISCREG_MC_STATUS(int index)
{
assert(index >= 0 && index < (MISCREG_MC_STATUS_END -
MISCREG_MC_STATUS_BASE));
return (MiscRegIndex)(MISCREG_MC_STATUS_BASE + index);
}
static inline MiscRegIndex
MISCREG_MC_ADDR(int index)
{
assert(index >= 0 && index < (MISCREG_MC_ADDR_END -
MISCREG_MC_ADDR_BASE));
return (MiscRegIndex)(MISCREG_MC_ADDR_BASE + index);
}
static inline MiscRegIndex
MISCREG_MC_MISC(int index)
{
assert(index >= 0 && index < (MISCREG_MC_MISC_END -
MISCREG_MC_MISC_BASE));
return (MiscRegIndex)(MISCREG_MC_MISC_BASE + index);
}
static inline MiscRegIndex
MISCREG_PERF_EVT_SEL(int index)
{
assert(index >= 0 && index < (MISCREG_PERF_EVT_SEL_END -
MISCREG_PERF_EVT_SEL_BASE));
return (MiscRegIndex)(MISCREG_PERF_EVT_SEL_BASE + index);
}
static inline MiscRegIndex
MISCREG_PERF_EVT_CTR(int index)
{
assert(index >= 0 && index < (MISCREG_PERF_EVT_CTR_END -
MISCREG_PERF_EVT_CTR_BASE));
return (MiscRegIndex)(MISCREG_PERF_EVT_CTR_BASE + index);
}
static inline MiscRegIndex
MISCREG_IORR_BASE(int index)
{
assert(index >= 0 && index < (MISCREG_IORR_BASE_END -
MISCREG_IORR_BASE_BASE));
return (MiscRegIndex)(MISCREG_IORR_BASE_BASE + index);
}
static inline MiscRegIndex
MISCREG_IORR_MASK(int index)
{
assert(index >= 0 && index < (MISCREG_IORR_MASK_END -
MISCREG_IORR_MASK_BASE));
return (MiscRegIndex)(MISCREG_IORR_MASK_BASE + index);
}
static inline MiscRegIndex
MISCREG_SEG_SEL(int index)
{
assert(index >= 0 && index < NUM_SEGMENTREGS);
return (MiscRegIndex)(MISCREG_SEG_SEL_BASE + index);
}
static inline MiscRegIndex
MISCREG_SEG_BASE(int index)
{
assert(index >= 0 && index < NUM_SEGMENTREGS);
return (MiscRegIndex)(MISCREG_SEG_BASE_BASE + index);
}
static inline MiscRegIndex
MISCREG_SEG_EFF_BASE(int index)
{
assert(index >= 0 && index < NUM_SEGMENTREGS);
return (MiscRegIndex)(MISCREG_SEG_EFF_BASE_BASE + index);
}
static inline MiscRegIndex
MISCREG_SEG_LIMIT(int index)
{
assert(index >= 0 && index < NUM_SEGMENTREGS);
return (MiscRegIndex)(MISCREG_SEG_LIMIT_BASE + index);
}
static inline MiscRegIndex
MISCREG_SEG_ATTR(int index)
{
assert(index >= 0 && index < NUM_SEGMENTREGS);
return (MiscRegIndex)(MISCREG_SEG_ATTR_BASE + index);
}
/**
* A type to describe the condition code bits of the RFLAGS register,
* plus two flags, EZF and ECF, which are only visible to microcode.
*/
BitUnion64(CCFlagBits)
Bitfield<11> of;
Bitfield<7> sf;
Bitfield<6> zf;
Bitfield<5> ezf;
Bitfield<4> af;
Bitfield<3> ecf;
Bitfield<2> pf;
Bitfield<0> cf;
EndBitUnion(CCFlagBits)
/**
* RFLAGS
*/
BitUnion64(RFLAGS)
Bitfield<21> id; // ID Flag
Bitfield<20> vip; // Virtual Interrupt Pending
Bitfield<19> vif; // Virtual Interrupt Flag
Bitfield<18> ac; // Alignment Check
Bitfield<17> vm; // Virtual-8086 Mode
Bitfield<16> rf; // Resume Flag
Bitfield<14> nt; // Nested Task
Bitfield<13, 12> iopl; // I/O Privilege Level
Bitfield<11> of; // Overflow Flag
Bitfield<10> df; // Direction Flag
Bitfield<9> intf; // Interrupt Flag
Bitfield<8> tf; // Trap Flag
Bitfield<7> sf; // Sign Flag
Bitfield<6> zf; // Zero Flag
Bitfield<4> af; // Auxiliary Flag
Bitfield<2> pf; // Parity Flag
Bitfield<0> cf; // Carry Flag
EndBitUnion(RFLAGS)
BitUnion64(HandyM5Reg)
Bitfield<0> mode;
Bitfield<3, 1> submode;
Bitfield<5, 4> cpl;
Bitfield<6> paging;
Bitfield<7> prot;
Bitfield<9, 8> defOp;
Bitfield<11, 10> altOp;
Bitfield<13, 12> defAddr;
Bitfield<15, 14> altAddr;
Bitfield<17, 16> stack;
EndBitUnion(HandyM5Reg)
/**
* Control registers
*/
BitUnion64(CR0)
Bitfield<31> pg; // Paging
Bitfield<30> cd; // Cache Disable
Bitfield<29> nw; // Not Writethrough
Bitfield<18> am; // Alignment Mask
Bitfield<16> wp; // Write Protect
Bitfield<5> ne; // Numeric Error
Bitfield<4> et; // Extension Type
Bitfield<3> ts; // Task Switched
Bitfield<2> em; // Emulation
Bitfield<1> mp; // Monitor Coprocessor
Bitfield<0> pe; // Protection Enabled
EndBitUnion(CR0)
// Page Fault Virtual Address
BitUnion64(CR2)
Bitfield<31, 0> legacy;
EndBitUnion(CR2)
BitUnion64(CR3)
Bitfield<51, 12> longPdtb; // Long Mode Page-Directory-Table
// Base Address
Bitfield<31, 12> pdtb; // Non-PAE Addressing Page-Directory-Table
// Base Address
Bitfield<31, 5> paePdtb; // PAE Addressing Page-Directory-Table
// Base Address
Bitfield<4> pcd; // Page-Level Cache Disable
Bitfield<3> pwt; // Page-Level Writethrough
EndBitUnion(CR3)
BitUnion64(CR4)
Bitfield<18> osxsave; // Enable XSAVE and Proc Extended States
Bitfield<16> fsgsbase; // Enable RDFSBASE, RDGSBASE, WRFSBASE,
// WRGSBASE instructions
Bitfield<10> osxmmexcpt; // Operating System Unmasked
// Exception Support
Bitfield<9> osfxsr; // Operating System FXSave/FSRSTOR Support
Bitfield<8> pce; // Performance-Monitoring Counter Enable
Bitfield<7> pge; // Page-Global Enable
Bitfield<6> mce; // Machine Check Enable
Bitfield<5> pae; // Physical-Address Extension
Bitfield<4> pse; // Page Size Extensions
Bitfield<3> de; // Debugging Extensions
Bitfield<2> tsd; // Time Stamp Disable
Bitfield<1> pvi; // Protected-Mode Virtual Interrupts
Bitfield<0> vme; // Virtual-8086 Mode Extensions
EndBitUnion(CR4)
BitUnion64(CR8)
Bitfield<3, 0> tpr; // Task Priority Register
EndBitUnion(CR8)
BitUnion64(DR6)
Bitfield<0> b0;
Bitfield<1> b1;
Bitfield<2> b2;
Bitfield<3> b3;
Bitfield<13> bd;
Bitfield<14> bs;
Bitfield<15> bt;
EndBitUnion(DR6)
BitUnion64(DR7)
Bitfield<0> l0;
Bitfield<1> g0;
Bitfield<2> l1;
Bitfield<3> g1;
Bitfield<4> l2;
Bitfield<5> g2;
Bitfield<6> l3;
Bitfield<7> g3;
Bitfield<8> le;
Bitfield<9> ge;
Bitfield<13> gd;
Bitfield<17, 16> rw0;
Bitfield<19, 18> len0;
Bitfield<21, 20> rw1;
Bitfield<23, 22> len1;
Bitfield<25, 24> rw2;
Bitfield<27, 26> len2;
Bitfield<29, 28> rw3;
Bitfield<31, 30> len3;
EndBitUnion(DR7)
// MTRR capabilities
BitUnion64(MTRRcap)
Bitfield<7, 0> vcnt; // Variable-Range Register Count
Bitfield<8> fix; // Fixed-Range Registers
Bitfield<10> wc; // Write-Combining
EndBitUnion(MTRRcap)
/**
* SYSENTER configuration registers
*/
BitUnion64(SysenterCS)
Bitfield<15, 0> targetCS;
EndBitUnion(SysenterCS)
BitUnion64(SysenterESP)
Bitfield<31, 0> targetESP;
EndBitUnion(SysenterESP)
BitUnion64(SysenterEIP)
Bitfield<31, 0> targetEIP;
EndBitUnion(SysenterEIP)
/**
* Global machine check registers
*/
BitUnion64(McgCap)
Bitfield<7, 0> count; // Number of error reporting register banks
Bitfield<8> MCGCP; // MCG_CTL register present.
EndBitUnion(McgCap)
BitUnion64(McgStatus)
Bitfield<0> ripv; // Restart-IP valid
Bitfield<1> eipv; // Error-IP valid
Bitfield<2> mcip; // Machine check in-progress
EndBitUnion(McgStatus)
BitUnion64(DebugCtlMsr)
Bitfield<0> lbr; // Last-branch record
Bitfield<1> btf; // Branch single step
Bitfield<2> pb0; // Performance monitoring pin control 0
Bitfield<3> pb1; // Performance monitoring pin control 1
Bitfield<4> pb2; // Performance monitoring pin control 2
Bitfield<5> pb3; // Performance monitoring pin control 3
/*uint64_t pb(int index)
{
return bits(__data, index + 2);
}*/
EndBitUnion(DebugCtlMsr)
BitUnion64(MtrrPhysBase)
Bitfield<7, 0> type; // Default memory type
Bitfield<51, 12> physbase; // Range physical base address
EndBitUnion(MtrrPhysBase)
BitUnion64(MtrrPhysMask)
Bitfield<11> valid; // MTRR pair enable
Bitfield<51, 12> physmask; // Range physical mask
EndBitUnion(MtrrPhysMask)
BitUnion64(MtrrFixed)
/*uint64_t type(int index)
{
return bits(__data, index * 8 + 7, index * 8);
}*/
EndBitUnion(MtrrFixed)
BitUnion64(Pat)
/*uint64_t pa(int index)
{
return bits(__data, index * 8 + 2, index * 8);
}*/
EndBitUnion(Pat)
BitUnion64(MtrrDefType)
Bitfield<7, 0> type; // Default type
Bitfield<10> fe; // Fixed range enable
Bitfield<11> e; // MTRR enable
EndBitUnion(MtrrDefType)
/**
* Machine check
*/
BitUnion64(McStatus)
Bitfield<15,0> mcaErrorCode;
Bitfield<31,16> modelSpecificCode;
Bitfield<56,32> otherInfo;
Bitfield<57> pcc; // Processor-context corrupt
Bitfield<58> addrv; // Error-address register valid
Bitfield<59> miscv; // Miscellaneous-error register valid
Bitfield<60> en; // Error condition enabled
Bitfield<61> uc; // Uncorrected error
Bitfield<62> over; // Status register overflow
Bitfield<63> val; // Valid
EndBitUnion(McStatus)
BitUnion64(McCtl)
/*uint64_t en(int index)
{
return bits(__data, index);
}*/
EndBitUnion(McCtl)
// Extended feature enable register
BitUnion64(Efer)
Bitfield<0> sce; // System call extensions
Bitfield<8> lme; // Long mode enable
Bitfield<10> lma; // Long mode active
Bitfield<11> nxe; // No-execute enable
Bitfield<12> svme; // Secure virtual machine enable
Bitfield<14> ffxsr; // Fast fxsave/fxrstor
EndBitUnion(Efer)
BitUnion64(Star)
Bitfield<31,0> targetEip;
Bitfield<47,32> syscallCsAndSs;
Bitfield<63,48> sysretCsAndSs;
EndBitUnion(Star)
BitUnion64(SfMask)
Bitfield<31,0> mask;
EndBitUnion(SfMask)
BitUnion64(PerfEvtSel)
Bitfield<7,0> eventMask;
Bitfield<15,8> unitMask;
Bitfield<16> usr; // User mode
Bitfield<17> os; // Operating-system mode
Bitfield<18> e; // Edge detect
Bitfield<19> pc; // Pin control
Bitfield<20> intEn; // Interrupt enable
Bitfield<22> en; // Counter enable
Bitfield<23> inv; // Invert mask
Bitfield<31,24> counterMask;
EndBitUnion(PerfEvtSel)
BitUnion32(Syscfg)
Bitfield<18> mfde; // MtrrFixDramEn
Bitfield<19> mfdm; // MtrrFixDramModEn
Bitfield<20> mvdm; // MtrrVarDramEn
Bitfield<21> tom2; // MtrrTom2En
EndBitUnion(Syscfg)
BitUnion64(IorrBase)
Bitfield<3> wr; // WrMem Enable
Bitfield<4> rd; // RdMem Enable
Bitfield<51,12> physbase; // Range physical base address
EndBitUnion(IorrBase)
BitUnion64(IorrMask)
Bitfield<11> v; // I/O register pair enable (valid)
Bitfield<51,12> physmask; // Range physical mask
EndBitUnion(IorrMask)
BitUnion64(Tom)
Bitfield<51,23> physAddr; // Top of memory physical address
EndBitUnion(Tom)
BitUnion64(VmCrMsr)
Bitfield<0> dpd;
Bitfield<1> rInit;
Bitfield<2> disA20M;
EndBitUnion(VmCrMsr)
BitUnion64(IgnneMsr)
Bitfield<0> ignne;
EndBitUnion(IgnneMsr)
BitUnion64(SmmCtlMsr)
Bitfield<0> dismiss;
Bitfield<1> enter;
Bitfield<2> smiCycle;
Bitfield<3> exit;
Bitfield<4> rsmCycle;
EndBitUnion(SmmCtlMsr)
/**
* Segment Selector
*/
BitUnion64(SegSelector)
// The following bitfield is not defined in the ISA, but it's useful
// when checking selectors in larger data types to make sure they
// aren't too large.
Bitfield<63, 3> esi; // Extended selector
Bitfield<15, 3> si; // Selector Index
Bitfield<2> ti; // Table Indicator
Bitfield<1, 0> rpl; // Requestor Privilege Level
EndBitUnion(SegSelector)
/**
* Segment Descriptors
*/
class SegDescriptorBase
{
public:
uint32_t
getter(const uint64_t &storage) const
{
return (bits(storage, 63, 56) << 24) | bits(storage, 39, 16);
}
void
setter(uint64_t &storage, uint32_t base)
{
replaceBits(storage, 63, 56, bits(base, 31, 24));
replaceBits(storage, 39, 16, bits(base, 23, 0));
}
};
class SegDescriptorLimit
{
public:
uint32_t
getter(const uint64_t &storage) const
{
uint32_t limit = (bits(storage, 51, 48) << 16) |
bits(storage, 15, 0);
if (bits(storage, 55))
limit = (limit << 12) | mask(12);
return limit;
}
void
setter(uint64_t &storage, uint32_t limit)
{
bool g = (bits(limit, 31, 24) != 0);
panic_if(g && bits(limit, 11, 0) != mask(12),
"Inlimitid segment limit %#x", limit);
if (g)
limit = limit >> 12;
replaceBits(storage, 51, 48, bits(limit, 23, 16));
replaceBits(storage, 15, 0, bits(limit, 15, 0));
replaceBits(storage, 55, g ? 1 : 0);
}
};
BitUnion64(SegDescriptor)
Bitfield<63, 56> baseHigh;
Bitfield<39, 16> baseLow;
BitfieldType<SegDescriptorBase> base;
Bitfield<55> g; // Granularity
Bitfield<54> d; // Default Operand Size
Bitfield<54> b; // Default Operand Size
Bitfield<53> l; // Long Attribute Bit
Bitfield<52> avl; // Available To Software
Bitfield<51, 48> limitHigh;
Bitfield<15, 0> limitLow;
BitfieldType<SegDescriptorLimit> limit;
Bitfield<47> p; // Present
Bitfield<46, 45> dpl; // Descriptor Privilege-Level
Bitfield<44> s; // System
SubBitUnion(type, 43, 40)
// Specifies whether this descriptor is for code or data.
Bitfield<43> codeOrData;
// These bit fields are for code segments
Bitfield<42> c; // Conforming
Bitfield<41> r; // Readable
// These bit fields are for data segments
Bitfield<42> e; // Expand-Down
Bitfield<41> w; // Writable
// This is used for both code and data segments.
Bitfield<40> a; // Accessed
EndSubBitUnion(type)
EndBitUnion(SegDescriptor)
/**
* TSS Descriptor (long mode - 128 bits)
* the lower 64 bits
*/
BitUnion64(TSSlow)
Bitfield<63, 56> baseHigh;
Bitfield<39, 16> baseLow;
BitfieldType<SegDescriptorBase> base;
Bitfield<55> g; // Granularity
Bitfield<52> avl; // Available To Software
Bitfield<51, 48> limitHigh;
Bitfield<15, 0> limitLow;
BitfieldType<SegDescriptorLimit> limit;
Bitfield<47> p; // Present
Bitfield<46, 45> dpl; // Descriptor Privilege-Level
SubBitUnion(type, 43, 40)
// Specifies whether this descriptor is for code or data.
Bitfield<43> codeOrData;
// These bit fields are for code segments
Bitfield<42> c; // Conforming
Bitfield<41> r; // Readable
// These bit fields are for data segments
Bitfield<42> e; // Expand-Down
Bitfield<41> w; // Writable
// This is used for both code and data segments.
Bitfield<40> a; // Accessed
EndSubBitUnion(type)
EndBitUnion(TSSlow)
/**
* TSS Descriptor (long mode - 128 bits)
* the upper 64 bits
*/
BitUnion64(TSShigh)
Bitfield<31, 0> base;
EndBitUnion(TSShigh)
BitUnion64(SegAttr)
Bitfield<1, 0> dpl;
Bitfield<2> unusable;
Bitfield<3> defaultSize;
Bitfield<4> longMode;
Bitfield<5> avl;
Bitfield<6> granularity;
Bitfield<7> present;
Bitfield<11, 8> type;
Bitfield<12> writable;
Bitfield<13> readable;
Bitfield<14> expandDown;
Bitfield<15> system;
EndBitUnion(SegAttr)
BitUnion64(GateDescriptor)
Bitfield<63, 48> offsetHigh; // Target Code-Segment Offset
Bitfield<15, 0> offsetLow; // Target Code-Segment Offset
Bitfield<31, 16> selector; // Target Code-Segment Selector
Bitfield<47> p; // Present
Bitfield<46, 45> dpl; // Descriptor Privilege-Level
Bitfield<43, 40> type;
Bitfield<36, 32> count; // Parameter Count
EndBitUnion(GateDescriptor)
/**
* Long Mode Gate Descriptor
*/
BitUnion64(GateDescriptorLow)
Bitfield<63, 48> offsetHigh; // Target Code-Segment Offset
Bitfield<47> p; // Present
Bitfield<46, 45> dpl; // Descriptor Privilege-Level
Bitfield<43, 40> type;
Bitfield<35, 32> IST; // IST pointer to TSS -- new stack for exception handling
Bitfield<31, 16> selector; // Target Code-Segment Selector
Bitfield<15, 0> offsetLow; // Target Code-Segment Offset
EndBitUnion(GateDescriptorLow)
BitUnion64(GateDescriptorHigh)
Bitfield<31, 0> offset; // Target Code-Segment Offset
EndBitUnion(GateDescriptorHigh)
/**
* Descriptor-Table Registers
*/
BitUnion64(GDTR)
EndBitUnion(GDTR)
BitUnion64(IDTR)
EndBitUnion(IDTR)
BitUnion64(LDTR)
EndBitUnion(LDTR)
/**
* Task Register
*/
BitUnion64(TR)
EndBitUnion(TR)
/**
* Local APIC Base Register
*/
BitUnion64(LocalApicBase)
Bitfield<51, 12> base;
Bitfield<11> enable;
Bitfield<8> bsp;
EndBitUnion(LocalApicBase)
}
#endif // __ARCH_X86_INTREGS_HH__