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64b85a8f23
'extern' qualifier is useless for function declarations. Delete them. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
270 lines
7.1 KiB
C
270 lines
7.1 KiB
C
/*
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* S/390 virtual CPU header
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*
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* Copyright (c) 2009 Ulrich Hecht
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef CPU_S390X_H
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#define CPU_S390X_H
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#define TARGET_LONG_BITS 64
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#define ELF_MACHINE EM_S390
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#define CPUState struct CPUS390XState
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#include "cpu-defs.h"
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#include "softfloat.h"
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#define NB_MMU_MODES 2
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typedef union FPReg {
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struct {
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#ifdef WORDS_BIGENDIAN
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float32 e;
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int32_t __pad;
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#else
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int32_t __pad;
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float32 e;
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#endif
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};
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float64 d;
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uint64_t i;
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} FPReg;
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typedef struct CPUS390XState {
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uint64_t regs[16]; /* GP registers */
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uint32_t aregs[16]; /* access registers */
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uint32_t fpc; /* floating-point control register */
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FPReg fregs[16]; /* FP registers */
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float_status fpu_status; /* passed to softfloat lib */
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struct {
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uint64_t mask;
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uint64_t addr;
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} psw;
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int cc; /* condition code (0-3) */
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uint64_t __excp_addr;
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CPU_COMMON
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} CPUS390XState;
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#if defined(CONFIG_USER_ONLY)
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static inline void cpu_clone_regs(CPUState *env, target_ulong newsp)
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{
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if (newsp)
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env->regs[15] = newsp;
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env->regs[0] = 0;
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}
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#endif
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#define MMU_MODE0_SUFFIX _kernel
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#define MMU_MODE1_SUFFIX _user
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#define MMU_USER_IDX 1
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static inline int cpu_mmu_index (CPUState *env)
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{
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/* XXX: Currently we don't implement virtual memory */
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return 0;
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}
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CPUS390XState *cpu_s390x_init(const char *cpu_model);
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int cpu_s390x_exec(CPUS390XState *s);
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void cpu_s390x_close(CPUS390XState *s);
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/* you can call this signal handler from your SIGBUS and SIGSEGV
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signal handlers to inform the virtual CPU of exceptions. non zero
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is returned if the signal was handled by the virtual CPU. */
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int cpu_s390x_signal_handler(int host_signum, void *pinfo,
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void *puc);
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int cpu_s390x_handle_mmu_fault (CPUS390XState *env, target_ulong address, int rw,
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int mmu_idx, int is_softmuu);
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#define cpu_handle_mmu_fault cpu_s390x_handle_mmu_fault
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#define TARGET_PAGE_BITS 12
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/* ??? This is certainly wrong for 64-bit s390x, but given that only KVM
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emulation actually works, this is good enough for a placeholder. */
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#define TARGET_PHYS_ADDR_SPACE_BITS 32
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#define TARGET_VIRT_ADDR_SPACE_BITS 32
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#ifndef CONFIG_USER_ONLY
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int s390_virtio_hypercall(CPUState *env);
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void kvm_s390_virtio_irq(CPUState *env, int config_change, uint64_t token);
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CPUState *s390_cpu_addr2state(uint16_t cpu_addr);
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#endif
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#define cpu_init cpu_s390x_init
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#define cpu_exec cpu_s390x_exec
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#define cpu_gen_code cpu_s390x_gen_code
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#include "cpu-all.h"
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#define EXCP_OPEX 1 /* operation exception (sigill) */
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#define EXCP_SVC 2 /* supervisor call (syscall) */
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#define EXCP_ADDR 5 /* addressing exception */
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#define EXCP_EXECUTE_SVC 0xff00000 /* supervisor call via execute insn */
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static inline void cpu_get_tb_cpu_state(CPUState* env, target_ulong *pc,
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target_ulong *cs_base, int *flags)
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{
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*pc = env->psw.addr;
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/* XXX this is correct for user-mode emulation, but needs
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* the asce register information as well when softmmu
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* is implemented in the future */
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*cs_base = 0;
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*flags = env->psw.mask;
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}
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/* Program Status Word. */
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#define S390_PSWM_REGNUM 0
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#define S390_PSWA_REGNUM 1
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/* General Purpose Registers. */
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#define S390_R0_REGNUM 2
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#define S390_R1_REGNUM 3
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#define S390_R2_REGNUM 4
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#define S390_R3_REGNUM 5
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#define S390_R4_REGNUM 6
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#define S390_R5_REGNUM 7
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#define S390_R6_REGNUM 8
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#define S390_R7_REGNUM 9
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#define S390_R8_REGNUM 10
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#define S390_R9_REGNUM 11
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#define S390_R10_REGNUM 12
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#define S390_R11_REGNUM 13
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#define S390_R12_REGNUM 14
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#define S390_R13_REGNUM 15
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#define S390_R14_REGNUM 16
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#define S390_R15_REGNUM 17
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/* Access Registers. */
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#define S390_A0_REGNUM 18
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#define S390_A1_REGNUM 19
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#define S390_A2_REGNUM 20
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#define S390_A3_REGNUM 21
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#define S390_A4_REGNUM 22
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#define S390_A5_REGNUM 23
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#define S390_A6_REGNUM 24
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#define S390_A7_REGNUM 25
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#define S390_A8_REGNUM 26
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#define S390_A9_REGNUM 27
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#define S390_A10_REGNUM 28
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#define S390_A11_REGNUM 29
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#define S390_A12_REGNUM 30
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#define S390_A13_REGNUM 31
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#define S390_A14_REGNUM 32
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#define S390_A15_REGNUM 33
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/* Floating Point Control Word. */
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#define S390_FPC_REGNUM 34
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/* Floating Point Registers. */
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#define S390_F0_REGNUM 35
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#define S390_F1_REGNUM 36
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#define S390_F2_REGNUM 37
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#define S390_F3_REGNUM 38
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#define S390_F4_REGNUM 39
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#define S390_F5_REGNUM 40
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#define S390_F6_REGNUM 41
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#define S390_F7_REGNUM 42
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#define S390_F8_REGNUM 43
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#define S390_F9_REGNUM 44
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#define S390_F10_REGNUM 45
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#define S390_F11_REGNUM 46
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#define S390_F12_REGNUM 47
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#define S390_F13_REGNUM 48
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#define S390_F14_REGNUM 49
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#define S390_F15_REGNUM 50
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/* Total. */
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#define S390_NUM_REGS 51
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/* Pseudo registers -- PC and condition code. */
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#define S390_PC_REGNUM S390_NUM_REGS
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#define S390_CC_REGNUM (S390_NUM_REGS+1)
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#define S390_NUM_PSEUDO_REGS 2
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#define S390_NUM_TOTAL_REGS (S390_NUM_REGS+2)
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/* Program Status Word. */
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#define S390_PSWM_REGNUM 0
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#define S390_PSWA_REGNUM 1
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/* General Purpose Registers. */
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#define S390_R0_REGNUM 2
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#define S390_R1_REGNUM 3
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#define S390_R2_REGNUM 4
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#define S390_R3_REGNUM 5
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#define S390_R4_REGNUM 6
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#define S390_R5_REGNUM 7
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#define S390_R6_REGNUM 8
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#define S390_R7_REGNUM 9
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#define S390_R8_REGNUM 10
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#define S390_R9_REGNUM 11
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#define S390_R10_REGNUM 12
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#define S390_R11_REGNUM 13
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#define S390_R12_REGNUM 14
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#define S390_R13_REGNUM 15
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#define S390_R14_REGNUM 16
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#define S390_R15_REGNUM 17
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/* Access Registers. */
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#define S390_A0_REGNUM 18
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#define S390_A1_REGNUM 19
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#define S390_A2_REGNUM 20
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#define S390_A3_REGNUM 21
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#define S390_A4_REGNUM 22
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#define S390_A5_REGNUM 23
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#define S390_A6_REGNUM 24
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#define S390_A7_REGNUM 25
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#define S390_A8_REGNUM 26
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#define S390_A9_REGNUM 27
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#define S390_A10_REGNUM 28
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#define S390_A11_REGNUM 29
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#define S390_A12_REGNUM 30
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#define S390_A13_REGNUM 31
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#define S390_A14_REGNUM 32
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#define S390_A15_REGNUM 33
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/* Floating Point Control Word. */
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#define S390_FPC_REGNUM 34
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/* Floating Point Registers. */
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#define S390_F0_REGNUM 35
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#define S390_F1_REGNUM 36
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#define S390_F2_REGNUM 37
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#define S390_F3_REGNUM 38
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#define S390_F4_REGNUM 39
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#define S390_F5_REGNUM 40
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#define S390_F6_REGNUM 41
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#define S390_F7_REGNUM 42
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#define S390_F8_REGNUM 43
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#define S390_F9_REGNUM 44
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#define S390_F10_REGNUM 45
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#define S390_F11_REGNUM 46
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#define S390_F12_REGNUM 47
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#define S390_F13_REGNUM 48
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#define S390_F14_REGNUM 49
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#define S390_F15_REGNUM 50
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/* Total. */
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#define S390_NUM_REGS 51
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/* Pseudo registers -- PC and condition code. */
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#define S390_PC_REGNUM S390_NUM_REGS
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#define S390_CC_REGNUM (S390_NUM_REGS+1)
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#define S390_NUM_PSEUDO_REGS 2
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#define S390_NUM_TOTAL_REGS (S390_NUM_REGS+2)
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#endif
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