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cpu.h
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cpu.h
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/*
* PowerPC emulation cpu definitions for qemu.
*
* Copyright (c) 2003-2007 Jocelyn Mayer
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#if !defined (__CPU_PPC_H__)
#define __CPU_PPC_H__
#include "config.h"
#include "qemu-common.h"
//#define PPC_EMULATE_32BITS_HYPV
#if defined (TARGET_PPC64)
/* PowerPC 64 definitions */
#define TARGET_LONG_BITS 64
#define TARGET_PAGE_BITS 12
/* Note that the official physical address space bits is 62-M where M
is implementation dependent. I've not looked up M for the set of
cpus we emulate at the system level. */
#define TARGET_PHYS_ADDR_SPACE_BITS 62
/* Note that the PPC environment architecture talks about 80 bit virtual
addresses, with segmentation. Obviously that's not all visible to a
single process, which is all we're concerned with here. */
#ifdef TARGET_ABI32
# define TARGET_VIRT_ADDR_SPACE_BITS 32
#else
# define TARGET_VIRT_ADDR_SPACE_BITS 64
#endif
#else /* defined (TARGET_PPC64) */
/* PowerPC 32 definitions */
#define TARGET_LONG_BITS 32
#if defined(TARGET_PPCEMB)
/* Specific definitions for PowerPC embedded */
/* BookE have 36 bits physical address space */
#if defined(CONFIG_USER_ONLY) || defined(USE_KVM)
/* It looks like a lot of Linux programs assume page size
* is 4kB long. This is evil, but we have to deal with it...
* Also kvm for embedded powerpc needs (atm) 4kB aligned pages
*/
#define TARGET_PAGE_BITS 12
#else /* defined(CONFIG_USER_ONLY) */
/* Pages can be 1 kB small */
#define TARGET_PAGE_BITS 10
#endif /* defined(CONFIG_USER_ONLY) */
#else /* defined(TARGET_PPCEMB) */
/* "standard" PowerPC 32 definitions */
#define TARGET_PAGE_BITS 12
#endif /* defined(TARGET_PPCEMB) */
#define TARGET_PHYS_ADDR_SPACE_BITS 32
#define TARGET_VIRT_ADDR_SPACE_BITS 32
#endif /* defined (TARGET_PPC64) */
#define CPUState struct CPUPPCState
#include "cpu-defs.h"
#include <setjmp.h>
#include "softfloat.h"
#define TARGET_HAS_ICE 1
#if defined (TARGET_PPC64)
#define ELF_MACHINE EM_PPC64
#else
#define ELF_MACHINE EM_PPC
#endif
/*****************************************************************************/
/* MMU model */
typedef enum powerpc_mmu_t powerpc_mmu_t;
enum powerpc_mmu_t {
POWERPC_MMU_UNKNOWN = 0x00000000,
/* Standard 32 bits PowerPC MMU */
POWERPC_MMU_32B = 0x00000001,
/* PowerPC 6xx MMU with software TLB */
POWERPC_MMU_SOFT_6xx = 0x00000002,
/* PowerPC 74xx MMU with software TLB */
POWERPC_MMU_SOFT_74xx = 0x00000003,
/* PowerPC 4xx MMU with software TLB */
POWERPC_MMU_SOFT_4xx = 0x00000004,
/* PowerPC 4xx MMU with software TLB and zones protections */
POWERPC_MMU_SOFT_4xx_Z = 0x00000005,
/* PowerPC MMU in real mode only */
POWERPC_MMU_REAL = 0x00000006,
/* Freescale MPC8xx MMU model */
POWERPC_MMU_MPC8xx = 0x00000007,
/* BookE MMU model */
POWERPC_MMU_BOOKE = 0x00000008,
/* BookE FSL MMU model */
POWERPC_MMU_BOOKE_FSL = 0x00000009,
/* PowerPC 601 MMU model (specific BATs format) */
POWERPC_MMU_601 = 0x0000000A,
#if defined(TARGET_PPC64)
#define POWERPC_MMU_64 0x00010000
/* 64 bits PowerPC MMU */
POWERPC_MMU_64B = POWERPC_MMU_64 | 0x00000001,
/* 620 variant (no segment exceptions) */
POWERPC_MMU_620 = POWERPC_MMU_64 | 0x00000002,
#endif /* defined(TARGET_PPC64) */
};
/*****************************************************************************/
/* Exception model */
typedef enum powerpc_excp_t powerpc_excp_t;
enum powerpc_excp_t {
POWERPC_EXCP_UNKNOWN = 0,
/* Standard PowerPC exception model */
POWERPC_EXCP_STD,
/* PowerPC 40x exception model */
POWERPC_EXCP_40x,
/* PowerPC 601 exception model */
POWERPC_EXCP_601,
/* PowerPC 602 exception model */
POWERPC_EXCP_602,
/* PowerPC 603 exception model */
POWERPC_EXCP_603,
/* PowerPC 603e exception model */
POWERPC_EXCP_603E,
/* PowerPC G2 exception model */
POWERPC_EXCP_G2,
/* PowerPC 604 exception model */
POWERPC_EXCP_604,
/* PowerPC 7x0 exception model */
POWERPC_EXCP_7x0,
/* PowerPC 7x5 exception model */
POWERPC_EXCP_7x5,
/* PowerPC 74xx exception model */
POWERPC_EXCP_74xx,
/* BookE exception model */
POWERPC_EXCP_BOOKE,
#if defined(TARGET_PPC64)
/* PowerPC 970 exception model */
POWERPC_EXCP_970,
#endif /* defined(TARGET_PPC64) */
};
/*****************************************************************************/
/* Exception vectors definitions */
enum {
POWERPC_EXCP_NONE = -1,
/* The 64 first entries are used by the PowerPC embedded specification */
POWERPC_EXCP_CRITICAL = 0, /* Critical input */
POWERPC_EXCP_MCHECK = 1, /* Machine check exception */
POWERPC_EXCP_DSI = 2, /* Data storage exception */
POWERPC_EXCP_ISI = 3, /* Instruction storage exception */
POWERPC_EXCP_EXTERNAL = 4, /* External input */
POWERPC_EXCP_ALIGN = 5, /* Alignment exception */
POWERPC_EXCP_PROGRAM = 6, /* Program exception */
POWERPC_EXCP_FPU = 7, /* Floating-point unavailable exception */
POWERPC_EXCP_SYSCALL = 8, /* System call exception */
POWERPC_EXCP_APU = 9, /* Auxiliary processor unavailable */
POWERPC_EXCP_DECR = 10, /* Decrementer exception */
POWERPC_EXCP_FIT = 11, /* Fixed-interval timer interrupt */
POWERPC_EXCP_WDT = 12, /* Watchdog timer interrupt */
POWERPC_EXCP_DTLB = 13, /* Data TLB miss */
POWERPC_EXCP_ITLB = 14, /* Instruction TLB miss */
POWERPC_EXCP_DEBUG = 15, /* Debug interrupt */
/* Vectors 16 to 31 are reserved */
POWERPC_EXCP_SPEU = 32, /* SPE/embedded floating-point unavailable */
POWERPC_EXCP_EFPDI = 33, /* Embedded floating-point data interrupt */
POWERPC_EXCP_EFPRI = 34, /* Embedded floating-point round interrupt */
POWERPC_EXCP_EPERFM = 35, /* Embedded performance monitor interrupt */
POWERPC_EXCP_DOORI = 36, /* Embedded doorbell interrupt */
POWERPC_EXCP_DOORCI = 37, /* Embedded doorbell critical interrupt */
/* Vectors 38 to 63 are reserved */
/* Exceptions defined in the PowerPC server specification */
POWERPC_EXCP_RESET = 64, /* System reset exception */
POWERPC_EXCP_DSEG = 65, /* Data segment exception */
POWERPC_EXCP_ISEG = 66, /* Instruction segment exception */
POWERPC_EXCP_HDECR = 67, /* Hypervisor decrementer exception */
POWERPC_EXCP_TRACE = 68, /* Trace exception */
POWERPC_EXCP_HDSI = 69, /* Hypervisor data storage exception */
POWERPC_EXCP_HISI = 70, /* Hypervisor instruction storage exception */
POWERPC_EXCP_HDSEG = 71, /* Hypervisor data segment exception */
POWERPC_EXCP_HISEG = 72, /* Hypervisor instruction segment exception */
POWERPC_EXCP_VPU = 73, /* Vector unavailable exception */
/* 40x specific exceptions */
POWERPC_EXCP_PIT = 74, /* Programmable interval timer interrupt */
/* 601 specific exceptions */
POWERPC_EXCP_IO = 75, /* IO error exception */
POWERPC_EXCP_RUNM = 76, /* Run mode exception */
/* 602 specific exceptions */
POWERPC_EXCP_EMUL = 77, /* Emulation trap exception */
/* 602/603 specific exceptions */
POWERPC_EXCP_IFTLB = 78, /* Instruction fetch TLB miss */
POWERPC_EXCP_DLTLB = 79, /* Data load TLB miss */
POWERPC_EXCP_DSTLB = 80, /* Data store TLB miss */
/* Exceptions available on most PowerPC */
POWERPC_EXCP_FPA = 81, /* Floating-point assist exception */
POWERPC_EXCP_DABR = 82, /* Data address breakpoint */
POWERPC_EXCP_IABR = 83, /* Instruction address breakpoint */
POWERPC_EXCP_SMI = 84, /* System management interrupt */
POWERPC_EXCP_PERFM = 85, /* Embedded performance monitor interrupt */
/* 7xx/74xx specific exceptions */
POWERPC_EXCP_THERM = 86, /* Thermal interrupt */
/* 74xx specific exceptions */
POWERPC_EXCP_VPUA = 87, /* Vector assist exception */
/* 970FX specific exceptions */
POWERPC_EXCP_SOFTP = 88, /* Soft patch exception */
POWERPC_EXCP_MAINT = 89, /* Maintenance exception */
/* Freescale embeded cores specific exceptions */
POWERPC_EXCP_MEXTBR = 90, /* Maskable external breakpoint */
POWERPC_EXCP_NMEXTBR = 91, /* Non maskable external breakpoint */
POWERPC_EXCP_ITLBE = 92, /* Instruction TLB error */
POWERPC_EXCP_DTLBE = 93, /* Data TLB error */
/* EOL */
POWERPC_EXCP_NB = 96,
/* Qemu exceptions: used internally during code translation */
POWERPC_EXCP_STOP = 0x200, /* stop translation */
POWERPC_EXCP_BRANCH = 0x201, /* branch instruction */
/* Qemu exceptions: special cases we want to stop translation */
POWERPC_EXCP_SYNC = 0x202, /* context synchronizing instruction */
POWERPC_EXCP_SYSCALL_USER = 0x203, /* System call in user mode only */
POWERPC_EXCP_STCX = 0x204 /* Conditional stores in user mode */
};
/* Exceptions error codes */
enum {
/* Exception subtypes for POWERPC_EXCP_ALIGN */
POWERPC_EXCP_ALIGN_FP = 0x01, /* FP alignment exception */
POWERPC_EXCP_ALIGN_LST = 0x02, /* Unaligned mult/extern load/store */
POWERPC_EXCP_ALIGN_LE = 0x03, /* Multiple little-endian access */
POWERPC_EXCP_ALIGN_PROT = 0x04, /* Access cross protection boundary */
POWERPC_EXCP_ALIGN_BAT = 0x05, /* Access cross a BAT/seg boundary */
POWERPC_EXCP_ALIGN_CACHE = 0x06, /* Impossible dcbz access */
/* Exception subtypes for POWERPC_EXCP_PROGRAM */
/* FP exceptions */
POWERPC_EXCP_FP = 0x10,
POWERPC_EXCP_FP_OX = 0x01, /* FP overflow */
POWERPC_EXCP_FP_UX = 0x02, /* FP underflow */
POWERPC_EXCP_FP_ZX = 0x03, /* FP divide by zero */
POWERPC_EXCP_FP_XX = 0x04, /* FP inexact */
POWERPC_EXCP_FP_VXSNAN = 0x05, /* FP invalid SNaN op */
POWERPC_EXCP_FP_VXISI = 0x06, /* FP invalid infinite subtraction */
POWERPC_EXCP_FP_VXIDI = 0x07, /* FP invalid infinite divide */
POWERPC_EXCP_FP_VXZDZ = 0x08, /* FP invalid zero divide */
POWERPC_EXCP_FP_VXIMZ = 0x09, /* FP invalid infinite * zero */
POWERPC_EXCP_FP_VXVC = 0x0A, /* FP invalid compare */
POWERPC_EXCP_FP_VXSOFT = 0x0B, /* FP invalid operation */
POWERPC_EXCP_FP_VXSQRT = 0x0C, /* FP invalid square root */
POWERPC_EXCP_FP_VXCVI = 0x0D, /* FP invalid integer conversion */
/* Invalid instruction */
POWERPC_EXCP_INVAL = 0x20,
POWERPC_EXCP_INVAL_INVAL = 0x01, /* Invalid instruction */
POWERPC_EXCP_INVAL_LSWX = 0x02, /* Invalid lswx instruction */
POWERPC_EXCP_INVAL_SPR = 0x03, /* Invalid SPR access */
POWERPC_EXCP_INVAL_FP = 0x04, /* Unimplemented mandatory fp instr */
/* Privileged instruction */
POWERPC_EXCP_PRIV = 0x30,
POWERPC_EXCP_PRIV_OPC = 0x01, /* Privileged operation exception */
POWERPC_EXCP_PRIV_REG = 0x02, /* Privileged register exception */
/* Trap */
POWERPC_EXCP_TRAP = 0x40,
};
/*****************************************************************************/
/* Input pins model */
typedef enum powerpc_input_t powerpc_input_t;
enum powerpc_input_t {
PPC_FLAGS_INPUT_UNKNOWN = 0,
/* PowerPC 6xx bus */
PPC_FLAGS_INPUT_6xx,
/* BookE bus */
PPC_FLAGS_INPUT_BookE,
/* PowerPC 405 bus */
PPC_FLAGS_INPUT_405,
/* PowerPC 970 bus */
PPC_FLAGS_INPUT_970,
/* PowerPC 401 bus */
PPC_FLAGS_INPUT_401,
/* Freescale RCPU bus */
PPC_FLAGS_INPUT_RCPU,
};
#define PPC_INPUT(env) (env->bus_model)
/*****************************************************************************/
typedef struct ppc_def_t ppc_def_t;
typedef struct opc_handler_t opc_handler_t;
/*****************************************************************************/
/* Types used to describe some PowerPC registers */
typedef struct CPUPPCState CPUPPCState;
typedef struct ppc_tb_t ppc_tb_t;
typedef struct ppc_spr_t ppc_spr_t;
typedef struct ppc_dcr_t ppc_dcr_t;
typedef union ppc_avr_t ppc_avr_t;
typedef union ppc_tlb_t ppc_tlb_t;
/* SPR access micro-ops generations callbacks */
struct ppc_spr_t {
void (*uea_read)(void *opaque, int gpr_num, int spr_num);
void (*uea_write)(void *opaque, int spr_num, int gpr_num);
#if !defined(CONFIG_USER_ONLY)
void (*oea_read)(void *opaque, int gpr_num, int spr_num);
void (*oea_write)(void *opaque, int spr_num, int gpr_num);
void (*hea_read)(void *opaque, int gpr_num, int spr_num);
void (*hea_write)(void *opaque, int spr_num, int gpr_num);
#endif
const char *name;
};
/* Altivec registers (128 bits) */
union ppc_avr_t {
float32 f[4];
uint8_t u8[16];
uint16_t u16[8];
uint32_t u32[4];
int8_t s8[16];
int16_t s16[8];
int32_t s32[4];
uint64_t u64[2];
};
#if !defined(CONFIG_USER_ONLY)
/* Software TLB cache */
typedef struct ppc6xx_tlb_t ppc6xx_tlb_t;
struct ppc6xx_tlb_t {
target_ulong pte0;
target_ulong pte1;
target_ulong EPN;
};
typedef struct ppcemb_tlb_t ppcemb_tlb_t;
struct ppcemb_tlb_t {
target_phys_addr_t RPN;
target_ulong EPN;
target_ulong PID;
target_ulong size;
uint32_t prot;
uint32_t attr; /* Storage attributes */
};
union ppc_tlb_t {
ppc6xx_tlb_t tlb6;
ppcemb_tlb_t tlbe;
};
#endif
typedef struct ppc_slb_t ppc_slb_t;
struct ppc_slb_t {
uint64_t tmp64;
uint32_t tmp;
};
/*****************************************************************************/
/* Machine state register bits definition */
#define MSR_SF 63 /* Sixty-four-bit mode hflags */
#define MSR_TAG 62 /* Tag-active mode (POWERx ?) */
#define MSR_ISF 61 /* Sixty-four-bit interrupt mode on 630 */
#define MSR_SHV 60 /* hypervisor state hflags */
#define MSR_CM 31 /* Computation mode for BookE hflags */
#define MSR_ICM 30 /* Interrupt computation mode for BookE */
#define MSR_THV 29 /* hypervisor state for 32 bits PowerPC hflags */
#define MSR_UCLE 26 /* User-mode cache lock enable for BookE */
#define MSR_VR 25 /* altivec available x hflags */
#define MSR_SPE 25 /* SPE enable for BookE x hflags */
#define MSR_AP 23 /* Access privilege state on 602 hflags */
#define MSR_SA 22 /* Supervisor access mode on 602 hflags */
#define MSR_KEY 19 /* key bit on 603e */
#define MSR_POW 18 /* Power management */
#define MSR_TGPR 17 /* TGPR usage on 602/603 x */
#define MSR_CE 17 /* Critical interrupt enable on embedded PowerPC x */
#define MSR_ILE 16 /* Interrupt little-endian mode */
#define MSR_EE 15 /* External interrupt enable */
#define MSR_PR 14 /* Problem state hflags */
#define MSR_FP 13 /* Floating point available hflags */
#define MSR_ME 12 /* Machine check interrupt enable */
#define MSR_FE0 11 /* Floating point exception mode 0 hflags */
#define MSR_SE 10 /* Single-step trace enable x hflags */
#define MSR_DWE 10 /* Debug wait enable on 405 x */
#define MSR_UBLE 10 /* User BTB lock enable on e500 x */
#define MSR_BE 9 /* Branch trace enable x hflags */
#define MSR_DE 9 /* Debug interrupts enable on embedded PowerPC x */
#define MSR_FE1 8 /* Floating point exception mode 1 hflags */
#define MSR_AL 7 /* AL bit on POWER */
#define MSR_EP 6 /* Exception prefix on 601 */
#define MSR_IR 5 /* Instruction relocate */
#define MSR_DR 4 /* Data relocate */
#define MSR_PE 3 /* Protection enable on 403 */
#define MSR_PX 2 /* Protection exclusive on 403 x */
#define MSR_PMM 2 /* Performance monitor mark on POWER x */
#define MSR_RI 1 /* Recoverable interrupt 1 */
#define MSR_LE 0 /* Little-endian mode 1 hflags */
#define msr_sf ((env->msr >> MSR_SF) & 1)
#define msr_isf ((env->msr >> MSR_ISF) & 1)
#define msr_shv ((env->msr >> MSR_SHV) & 1)
#define msr_cm ((env->msr >> MSR_CM) & 1)
#define msr_icm ((env->msr >> MSR_ICM) & 1)
#define msr_thv ((env->msr >> MSR_THV) & 1)
#define msr_ucle ((env->msr >> MSR_UCLE) & 1)
#define msr_vr ((env->msr >> MSR_VR) & 1)
#define msr_spe ((env->msr >> MSR_SPE) & 1)
#define msr_ap ((env->msr >> MSR_AP) & 1)
#define msr_sa ((env->msr >> MSR_SA) & 1)
#define msr_key ((env->msr >> MSR_KEY) & 1)
#define msr_pow ((env->msr >> MSR_POW) & 1)
#define msr_tgpr ((env->msr >> MSR_TGPR) & 1)
#define msr_ce ((env->msr >> MSR_CE) & 1)
#define msr_ile ((env->msr >> MSR_ILE) & 1)
#define msr_ee ((env->msr >> MSR_EE) & 1)
#define msr_pr ((env->msr >> MSR_PR) & 1)
#define msr_fp ((env->msr >> MSR_FP) & 1)
#define msr_me ((env->msr >> MSR_ME) & 1)
#define msr_fe0 ((env->msr >> MSR_FE0) & 1)
#define msr_se ((env->msr >> MSR_SE) & 1)
#define msr_dwe ((env->msr >> MSR_DWE) & 1)
#define msr_uble ((env->msr >> MSR_UBLE) & 1)
#define msr_be ((env->msr >> MSR_BE) & 1)
#define msr_de ((env->msr >> MSR_DE) & 1)
#define msr_fe1 ((env->msr >> MSR_FE1) & 1)
#define msr_al ((env->msr >> MSR_AL) & 1)
#define msr_ep ((env->msr >> MSR_EP) & 1)
#define msr_ir ((env->msr >> MSR_IR) & 1)
#define msr_dr ((env->msr >> MSR_DR) & 1)
#define msr_pe ((env->msr >> MSR_PE) & 1)
#define msr_px ((env->msr >> MSR_PX) & 1)
#define msr_pmm ((env->msr >> MSR_PMM) & 1)
#define msr_ri ((env->msr >> MSR_RI) & 1)
#define msr_le ((env->msr >> MSR_LE) & 1)
/* Hypervisor bit is more specific */
#if defined(TARGET_PPC64)
#define MSR_HVB (1ULL << MSR_SHV)
#define msr_hv msr_shv
#else
#if defined(PPC_EMULATE_32BITS_HYPV)
#define MSR_HVB (1ULL << MSR_THV)
#define msr_hv msr_thv
#else
#define MSR_HVB (0ULL)
#define msr_hv (0)
#endif
#endif
/* Exception state register bits definition */
#define ESR_ST 23 /* Exception was caused by a store type access. */
enum {
POWERPC_FLAG_NONE = 0x00000000,
/* Flag for MSR bit 25 signification (VRE/SPE) */
POWERPC_FLAG_SPE = 0x00000001,
POWERPC_FLAG_VRE = 0x00000002,
/* Flag for MSR bit 17 signification (TGPR/CE) */
POWERPC_FLAG_TGPR = 0x00000004,
POWERPC_FLAG_CE = 0x00000008,
/* Flag for MSR bit 10 signification (SE/DWE/UBLE) */
POWERPC_FLAG_SE = 0x00000010,
POWERPC_FLAG_DWE = 0x00000020,
POWERPC_FLAG_UBLE = 0x00000040,
/* Flag for MSR bit 9 signification (BE/DE) */
POWERPC_FLAG_BE = 0x00000080,
POWERPC_FLAG_DE = 0x00000100,
/* Flag for MSR bit 2 signification (PX/PMM) */
POWERPC_FLAG_PX = 0x00000200,
POWERPC_FLAG_PMM = 0x00000400,
/* Flag for special features */
/* Decrementer clock: RTC clock (POWER, 601) or bus clock */
POWERPC_FLAG_RTC_CLK = 0x00010000,
POWERPC_FLAG_BUS_CLK = 0x00020000,
};
/*****************************************************************************/
/* Floating point status and control register */
#define FPSCR_FX 31 /* Floating-point exception summary */
#define FPSCR_FEX 30 /* Floating-point enabled exception summary */
#define FPSCR_VX 29 /* Floating-point invalid operation exception summ. */
#define FPSCR_OX 28 /* Floating-point overflow exception */
#define FPSCR_UX 27 /* Floating-point underflow exception */
#define FPSCR_ZX 26 /* Floating-point zero divide exception */
#define FPSCR_XX 25 /* Floating-point inexact exception */
#define FPSCR_VXSNAN 24 /* Floating-point invalid operation exception (sNan) */
#define FPSCR_VXISI 23 /* Floating-point invalid operation exception (inf) */
#define FPSCR_VXIDI 22 /* Floating-point invalid operation exception (inf) */
#define FPSCR_VXZDZ 21 /* Floating-point invalid operation exception (zero) */
#define FPSCR_VXIMZ 20 /* Floating-point invalid operation exception (inf) */
#define FPSCR_VXVC 19 /* Floating-point invalid operation exception (comp) */
#define FPSCR_FR 18 /* Floating-point fraction rounded */
#define FPSCR_FI 17 /* Floating-point fraction inexact */
#define FPSCR_C 16 /* Floating-point result class descriptor */
#define FPSCR_FL 15 /* Floating-point less than or negative */
#define FPSCR_FG 14 /* Floating-point greater than or negative */
#define FPSCR_FE 13 /* Floating-point equal or zero */
#define FPSCR_FU 12 /* Floating-point unordered or NaN */
#define FPSCR_FPCC 12 /* Floating-point condition code */
#define FPSCR_FPRF 12 /* Floating-point result flags */
#define FPSCR_VXSOFT 10 /* Floating-point invalid operation exception (soft) */
#define FPSCR_VXSQRT 9 /* Floating-point invalid operation exception (sqrt) */
#define FPSCR_VXCVI 8 /* Floating-point invalid operation exception (int) */
#define FPSCR_VE 7 /* Floating-point invalid operation exception enable */
#define FPSCR_OE 6 /* Floating-point overflow exception enable */
#define FPSCR_UE 5 /* Floating-point undeflow exception enable */
#define FPSCR_ZE 4 /* Floating-point zero divide exception enable */
#define FPSCR_XE 3 /* Floating-point inexact exception enable */
#define FPSCR_NI 2 /* Floating-point non-IEEE mode */
#define FPSCR_RN1 1
#define FPSCR_RN 0 /* Floating-point rounding control */
#define fpscr_fex (((env->fpscr) >> FPSCR_FEX) & 0x1)
#define fpscr_vx (((env->fpscr) >> FPSCR_VX) & 0x1)
#define fpscr_ox (((env->fpscr) >> FPSCR_OX) & 0x1)
#define fpscr_ux (((env->fpscr) >> FPSCR_UX) & 0x1)
#define fpscr_zx (((env->fpscr) >> FPSCR_ZX) & 0x1)
#define fpscr_xx (((env->fpscr) >> FPSCR_XX) & 0x1)
#define fpscr_vxsnan (((env->fpscr) >> FPSCR_VXSNAN) & 0x1)
#define fpscr_vxisi (((env->fpscr) >> FPSCR_VXISI) & 0x1)
#define fpscr_vxidi (((env->fpscr) >> FPSCR_VXIDI) & 0x1)
#define fpscr_vxzdz (((env->fpscr) >> FPSCR_VXZDZ) & 0x1)
#define fpscr_vximz (((env->fpscr) >> FPSCR_VXIMZ) & 0x1)
#define fpscr_vxvc (((env->fpscr) >> FPSCR_VXVC) & 0x1)
#define fpscr_fpcc (((env->fpscr) >> FPSCR_FPCC) & 0xF)
#define fpscr_vxsoft (((env->fpscr) >> FPSCR_VXSOFT) & 0x1)
#define fpscr_vxsqrt (((env->fpscr) >> FPSCR_VXSQRT) & 0x1)
#define fpscr_vxcvi (((env->fpscr) >> FPSCR_VXCVI) & 0x1)
#define fpscr_ve (((env->fpscr) >> FPSCR_VE) & 0x1)
#define fpscr_oe (((env->fpscr) >> FPSCR_OE) & 0x1)
#define fpscr_ue (((env->fpscr) >> FPSCR_UE) & 0x1)
#define fpscr_ze (((env->fpscr) >> FPSCR_ZE) & 0x1)
#define fpscr_xe (((env->fpscr) >> FPSCR_XE) & 0x1)
#define fpscr_ni (((env->fpscr) >> FPSCR_NI) & 0x1)
#define fpscr_rn (((env->fpscr) >> FPSCR_RN) & 0x3)
/* Invalid operation exception summary */
#define fpscr_ix ((env->fpscr) & ((1 << FPSCR_VXSNAN) | (1 << FPSCR_VXISI) | \
(1 << FPSCR_VXIDI) | (1 << FPSCR_VXZDZ) | \
(1 << FPSCR_VXIMZ) | (1 << FPSCR_VXVC) | \
(1 << FPSCR_VXSOFT) | (1 << FPSCR_VXSQRT) | \
(1 << FPSCR_VXCVI)))
/* exception summary */
#define fpscr_ex (((env->fpscr) >> FPSCR_XX) & 0x1F)
/* enabled exception summary */
#define fpscr_eex (((env->fpscr) >> FPSCR_XX) & ((env->fpscr) >> FPSCR_XE) & \
0x1F)
/*****************************************************************************/
/* Vector status and control register */
#define VSCR_NJ 16 /* Vector non-java */
#define VSCR_SAT 0 /* Vector saturation */
#define vscr_nj (((env->vscr) >> VSCR_NJ) & 0x1)
#define vscr_sat (((env->vscr) >> VSCR_SAT) & 0x1)
/*****************************************************************************/
/* The whole PowerPC CPU context */
#define NB_MMU_MODES 3
struct CPUPPCState {
/* First are the most commonly used resources
* during translated code execution
*/
/* general purpose registers */
target_ulong gpr[32];
#if !defined(TARGET_PPC64)
/* Storage for GPR MSB, used by the SPE extension */
target_ulong gprh[32];
#endif
/* LR */
target_ulong lr;
/* CTR */
target_ulong ctr;
/* condition register */
uint32_t crf[8];
/* XER */
target_ulong xer;
/* Reservation address */
target_ulong reserve_addr;
/* Reservation value */
target_ulong reserve_val;
/* Reservation store address */
target_ulong reserve_ea;
/* Reserved store source register and size */
target_ulong reserve_info;
/* Those ones are used in supervisor mode only */
/* machine state register */
target_ulong msr;
/* temporary general purpose registers */
target_ulong tgpr[4]; /* Used to speed-up TLB assist handlers */
/* Floating point execution context */
float_status fp_status;
/* floating point registers */
float64 fpr[32];
/* floating point status and control register */
uint32_t fpscr;
/* Next instruction pointer */
target_ulong nip;
int access_type; /* when a memory exception occurs, the access
type is stored here */
CPU_COMMON
/* MMU context - only relevant for full system emulation */
#if !defined(CONFIG_USER_ONLY)
#if defined(TARGET_PPC64)
/* Address space register */
target_ulong asr;
/* PowerPC 64 SLB area */
ppc_slb_t slb[64];
int slb_nr;
#endif
/* segment registers */
target_ulong sdr1;
target_ulong sr[32];
/* BATs */
int nb_BATs;
target_ulong DBAT[2][8];
target_ulong IBAT[2][8];
/* PowerPC TLB registers (for 4xx and 60x software driven TLBs) */
int nb_tlb; /* Total number of TLB */
int tlb_per_way; /* Speed-up helper: used to avoid divisions at run time */
int nb_ways; /* Number of ways in the TLB set */
int last_way; /* Last used way used to allocate TLB in a LRU way */
int id_tlbs; /* If 1, MMU has separated TLBs for instructions & data */
int nb_pids; /* Number of available PID registers */
ppc_tlb_t *tlb; /* TLB is optional. Allocate them only if needed */
/* 403 dedicated access protection registers */
target_ulong pb[4];
#endif
/* Other registers */
/* Special purpose registers */
target_ulong spr[1024];
ppc_spr_t spr_cb[1024];
/* Altivec registers */
ppc_avr_t avr[32];
uint32_t vscr;
/* SPE registers */
uint64_t spe_acc;
uint32_t spe_fscr;
/* SPE and Altivec can share a status since they will never be used
* simultaneously */
float_status vec_status;
/* Internal devices resources */
/* Time base and decrementer */
ppc_tb_t *tb_env;
/* Device control registers */
ppc_dcr_t *dcr_env;
int dcache_line_size;
int icache_line_size;
/* Those resources are used during exception processing */
/* CPU model definition */
target_ulong msr_mask;
powerpc_mmu_t mmu_model;
powerpc_excp_t excp_model;
powerpc_input_t bus_model;
int bfd_mach;
uint32_t flags;
uint64_t insns_flags;
int error_code;
uint32_t pending_interrupts;
#if !defined(CONFIG_USER_ONLY)
/* This is the IRQ controller, which is implementation dependant
* and only relevant when emulating a complete machine.
*/
uint32_t irq_input_state;
void **irq_inputs;
/* Exception vectors */
target_ulong excp_vectors[POWERPC_EXCP_NB];
target_ulong excp_prefix;
target_ulong hreset_excp_prefix;
target_ulong ivor_mask;
target_ulong ivpr_mask;
target_ulong hreset_vector;
#endif
/* Those resources are used only during code translation */
/* opcode handlers */
opc_handler_t *opcodes[0x40];
/* Those resources are used only in Qemu core */
target_ulong hflags; /* hflags is a MSR & HFLAGS_MASK */
target_ulong hflags_nmsr; /* specific hflags, not comming from MSR */
int mmu_idx; /* precomputed MMU index to speed up mem accesses */
/* Power management */
int power_mode;
int (*check_pow)(CPUPPCState *env);
#if !defined(CONFIG_USER_ONLY)
void *load_info; /* Holds boot loading state. */
#endif
};
#if !defined(CONFIG_USER_ONLY)
/* Context used internally during MMU translations */
typedef struct mmu_ctx_t mmu_ctx_t;
struct mmu_ctx_t {
target_phys_addr_t raddr; /* Real address */
target_phys_addr_t eaddr; /* Effective address */
int prot; /* Protection bits */
target_phys_addr_t pg_addr[2]; /* PTE tables base addresses */
target_ulong ptem; /* Virtual segment ID | API */
int key; /* Access key */
int nx; /* Non-execute area */
};
#endif
/*****************************************************************************/
CPUPPCState *cpu_ppc_init (const char *cpu_model);
void ppc_translate_init(void);
int cpu_ppc_exec (CPUPPCState *s);
void cpu_ppc_close (CPUPPCState *s);
/* you can call this signal handler from your SIGBUS and SIGSEGV
signal handlers to inform the virtual CPU of exceptions. non zero
is returned if the signal was handled by the virtual CPU. */
int cpu_ppc_signal_handler (int host_signum, void *pinfo,
void *puc);
int cpu_ppc_handle_mmu_fault (CPUPPCState *env, target_ulong address, int rw,
int mmu_idx, int is_softmmu);
#define cpu_handle_mmu_fault cpu_ppc_handle_mmu_fault
#if !defined(CONFIG_USER_ONLY)
int get_physical_address (CPUPPCState *env, mmu_ctx_t *ctx, target_ulong vaddr,
int rw, int access_type);
#endif
void do_interrupt (CPUPPCState *env);
void ppc_hw_interrupt (CPUPPCState *env);
void cpu_dump_rfi (target_ulong RA, target_ulong msr);
#if !defined(CONFIG_USER_ONLY)
void ppc6xx_tlb_store (CPUPPCState *env, target_ulong EPN, int way, int is_code,
target_ulong pte0, target_ulong pte1);
void ppc_store_ibatu (CPUPPCState *env, int nr, target_ulong value);
void ppc_store_ibatl (CPUPPCState *env, int nr, target_ulong value);
void ppc_store_dbatu (CPUPPCState *env, int nr, target_ulong value);
void ppc_store_dbatl (CPUPPCState *env, int nr, target_ulong value);
void ppc_store_ibatu_601 (CPUPPCState *env, int nr, target_ulong value);
void ppc_store_ibatl_601 (CPUPPCState *env, int nr, target_ulong value);
void ppc_store_sdr1 (CPUPPCState *env, target_ulong value);
#if defined(TARGET_PPC64)
void ppc_store_asr (CPUPPCState *env, target_ulong value);
target_ulong ppc_load_slb (CPUPPCState *env, int slb_nr);
target_ulong ppc_load_sr (CPUPPCState *env, int sr_nr);
void ppc_store_slb (CPUPPCState *env, target_ulong rb, target_ulong rs);
#endif /* defined(TARGET_PPC64) */
void ppc_store_sr (CPUPPCState *env, int srnum, target_ulong value);
#endif /* !defined(CONFIG_USER_ONLY) */
void ppc_store_msr (CPUPPCState *env, target_ulong value);
void ppc_cpu_list (FILE *f, fprintf_function cpu_fprintf);
const ppc_def_t *cpu_ppc_find_by_name (const char *name);
int cpu_ppc_register_internal (CPUPPCState *env, const ppc_def_t *def);
/* Time-base and decrementer management */
#ifndef NO_CPU_IO_DEFS
uint64_t cpu_ppc_load_tbl (CPUPPCState *env);
uint32_t cpu_ppc_load_tbu (CPUPPCState *env);
void cpu_ppc_store_tbu (CPUPPCState *env, uint32_t value);
void cpu_ppc_store_tbl (CPUPPCState *env, uint32_t value);
uint64_t cpu_ppc_load_atbl (CPUPPCState *env);
uint32_t cpu_ppc_load_atbu (CPUPPCState *env);
void cpu_ppc_store_atbl (CPUPPCState *env, uint32_t value);
void cpu_ppc_store_atbu (CPUPPCState *env, uint32_t value);
uint32_t cpu_ppc_load_decr (CPUPPCState *env);
void cpu_ppc_store_decr (CPUPPCState *env, uint32_t value);
uint32_t cpu_ppc_load_hdecr (CPUPPCState *env);
void cpu_ppc_store_hdecr (CPUPPCState *env, uint32_t value);
uint64_t cpu_ppc_load_purr (CPUPPCState *env);
void cpu_ppc_store_purr (CPUPPCState *env, uint64_t value);
uint32_t cpu_ppc601_load_rtcl (CPUPPCState *env);
uint32_t cpu_ppc601_load_rtcu (CPUPPCState *env);
#if !defined(CONFIG_USER_ONLY)
void cpu_ppc601_store_rtcl (CPUPPCState *env, uint32_t value);
void cpu_ppc601_store_rtcu (CPUPPCState *env, uint32_t value);
target_ulong load_40x_pit (CPUPPCState *env);
void store_40x_pit (CPUPPCState *env, target_ulong val);
void store_40x_dbcr0 (CPUPPCState *env, uint32_t val);
void store_40x_sler (CPUPPCState *env, uint32_t val);
void store_booke_tcr (CPUPPCState *env, target_ulong val);
void store_booke_tsr (CPUPPCState *env, target_ulong val);
void ppc_tlb_invalidate_all (CPUPPCState *env);
void ppc_tlb_invalidate_one (CPUPPCState *env, target_ulong addr);
#if defined(TARGET_PPC64)
void ppc_slb_invalidate_all (CPUPPCState *env);
void ppc_slb_invalidate_one (CPUPPCState *env, uint64_t T0);
#endif
int ppcemb_tlb_search (CPUPPCState *env, target_ulong address, uint32_t pid);
#endif
#endif
static inline uint64_t ppc_dump_gpr(CPUPPCState *env, int gprn)
{
uint64_t gprv;
gprv = env->gpr[gprn];
#if !defined(TARGET_PPC64)
if (env->flags & POWERPC_FLAG_SPE) {
/* If the CPU implements the SPE extension, we have to get the
* high bits of the GPR from the gprh storage area
*/
gprv &= 0xFFFFFFFFULL;
gprv |= (uint64_t)env->gprh[gprn] << 32;
}
#endif
return gprv;
}
/* Device control registers */
int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, uint32_t *valp);
int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, uint32_t val);
#define cpu_init cpu_ppc_init
#define cpu_exec cpu_ppc_exec
#define cpu_gen_code cpu_ppc_gen_code
#define cpu_signal_handler cpu_ppc_signal_handler
#define cpu_list ppc_cpu_list
#define CPU_SAVE_VERSION 4
/* MMU modes definitions */
#define MMU_MODE0_SUFFIX _user
#define MMU_MODE1_SUFFIX _kernel
#define MMU_MODE2_SUFFIX _hypv
#define MMU_USER_IDX 0
static inline int cpu_mmu_index (CPUState *env)
{
return env->mmu_idx;
}
#if defined(CONFIG_USER_ONLY)
static inline void cpu_clone_regs(CPUState *env, target_ulong newsp)
{
if (newsp)
env->gpr[1] = newsp;
env->gpr[3] = 0;
}
#endif
#include "cpu-all.h"
/*****************************************************************************/
/* CRF definitions */
#define CRF_LT 3
#define CRF_GT 2
#define CRF_EQ 1
#define CRF_SO 0
#define CRF_CH (1 << CRF_LT)
#define CRF_CL (1 << CRF_GT)
#define CRF_CH_OR_CL (1 << CRF_EQ)
#define CRF_CH_AND_CL (1 << CRF_SO)
/* XER definitions */
#define XER_SO 31
#define XER_OV 30
#define XER_CA 29
#define XER_CMP 8
#define XER_BC 0
#define xer_so ((env->xer >> XER_SO) & 1)
#define xer_ov ((env->xer >> XER_OV) & 1)
#define xer_ca ((env->xer >> XER_CA) & 1)
#define xer_cmp ((env->xer >> XER_CMP) & 0xFF)
#define xer_bc ((env->xer >> XER_BC) & 0x7F)
/* SPR definitions */
#define SPR_MQ (0x000)
#define SPR_XER (0x001)
#define SPR_601_VRTCU (0x004)
#define SPR_601_VRTCL (0x005)
#define SPR_601_UDECR (0x006)
#define SPR_LR (0x008)
#define SPR_CTR (0x009)
#define SPR_DSISR (0x012)
#define SPR_DAR (0x013) /* DAE for PowerPC 601 */
#define SPR_601_RTCU (0x014)
#define SPR_601_RTCL (0x015)
#define SPR_DECR (0x016)
#define SPR_SDR1 (0x019)
#define SPR_SRR0 (0x01A)
#define SPR_SRR1 (0x01B)
#define SPR_AMR (0x01D)
#define SPR_BOOKE_PID (0x030)
#define SPR_BOOKE_DECAR (0x036)
#define SPR_BOOKE_CSRR0 (0x03A)
#define SPR_BOOKE_CSRR1 (0x03B)
#define SPR_BOOKE_DEAR (0x03D)
#define SPR_BOOKE_ESR (0x03E)
#define SPR_BOOKE_IVPR (0x03F)
#define SPR_MPC_EIE (0x050)
#define SPR_MPC_EID (0x051)
#define SPR_MPC_NRI (0x052)
#define SPR_CTRL (0x088)
#define SPR_MPC_CMPA (0x090)
#define SPR_MPC_CMPB (0x091)
#define SPR_MPC_CMPC (0x092)
#define SPR_MPC_CMPD (0x093)
#define SPR_MPC_ECR (0x094)
#define SPR_MPC_DER (0x095)
#define SPR_MPC_COUNTA (0x096)
#define SPR_MPC_COUNTB (0x097)
#define SPR_UCTRL (0x098)
#define SPR_MPC_CMPE (0x098)
#define SPR_MPC_CMPF (0x099)
#define SPR_MPC_CMPG (0x09A)
#define SPR_MPC_CMPH (0x09B)
#define SPR_MPC_LCTRL1 (0x09C)
#define SPR_MPC_LCTRL2 (0x09D)
#define SPR_MPC_ICTRL (0x09E)
#define SPR_MPC_BAR (0x09F)
#define SPR_VRSAVE (0x100)
#define SPR_USPRG0 (0x100)
#define SPR_USPRG1 (0x101)
#define SPR_USPRG2 (0x102)
#define SPR_USPRG3 (0x103)
#define SPR_USPRG4 (0x104)
#define SPR_USPRG5 (0x105)
#define SPR_USPRG6 (0x106)
#define SPR_USPRG7 (0x107)
#define SPR_VTBL (0x10C)
#define SPR_VTBU (0x10D)
#define SPR_SPRG0 (0x110)
#define SPR_SPRG1 (0x111)
#define SPR_SPRG2 (0x112)
#define SPR_SPRG3 (0x113)
#define SPR_SPRG4 (0x114)
#define SPR_SCOMC (0x114)
#define SPR_SPRG5 (0x115)
#define SPR_SCOMD (0x115)
#define SPR_SPRG6 (0x116)
#define SPR_SPRG7 (0x117)
#define SPR_ASR (0x118)
#define SPR_EAR (0x11A)
#define SPR_TBL (0x11C)
#define SPR_TBU (0x11D)
#define SPR_TBU40 (0x11E)
#define SPR_SVR (0x11E)
#define SPR_BOOKE_PIR (0x11E)
#define SPR_PVR (0x11F)
#define SPR_HSPRG0 (0x130)
#define SPR_BOOKE_DBSR (0x130)
#define SPR_HSPRG1 (0x131)
#define SPR_HDSISR (0x132)
#define SPR_HDAR (0x133)
#define SPR_BOOKE_DBCR0 (0x134)
#define SPR_IBCR (0x135)
#define SPR_PURR (0x135)
#define SPR_BOOKE_DBCR1 (0x135)
#define SPR_DBCR (0x136)
#define SPR_HDEC (0x136)
#define SPR_BOOKE_DBCR2 (0x136)
#define SPR_HIOR (0x137)
#define SPR_MBAR (0x137)
#define SPR_RMOR (0x138)
#define SPR_BOOKE_IAC1 (0x138)
#define SPR_HRMOR (0x139)
#define SPR_BOOKE_IAC2 (0x139)
#define SPR_HSRR0 (0x13A)
#define SPR_BOOKE_IAC3 (0x13A)
#define SPR_HSRR1 (0x13B)
#define SPR_BOOKE_IAC4 (0x13B)
#define SPR_LPCR (0x13C)
#define SPR_BOOKE_DAC1 (0x13C)
#define SPR_LPIDR (0x13D)
#define SPR_DABR2 (0x13D)
#define SPR_BOOKE_DAC2 (0x13D)
#define SPR_BOOKE_DVC1 (0x13E)
#define SPR_BOOKE_DVC2 (0x13F)
#define SPR_BOOKE_TSR (0x150)
#define SPR_BOOKE_TCR (0x154)
#define SPR_BOOKE_IVOR0 (0x190)
#define SPR_BOOKE_IVOR1 (0x191)
#define SPR_BOOKE_IVOR2 (0x192)
#define SPR_BOOKE_IVOR3 (0x193)
#define SPR_BOOKE_IVOR4 (0x194)
#define SPR_BOOKE_IVOR5 (0x195)
#define SPR_BOOKE_IVOR6 (0x196)
#define SPR_BOOKE_IVOR7 (0x197)
#define SPR_BOOKE_IVOR8 (0x198)
#define SPR_BOOKE_IVOR9 (0x199)
#define SPR_BOOKE_IVOR10 (0x19A)
#define SPR_BOOKE_IVOR11 (0x19B)
#define SPR_BOOKE_IVOR12 (0x19C)
#define SPR_BOOKE_IVOR13 (0x19D)
#define SPR_BOOKE_IVOR14 (0x19E)