diff options
Diffstat (limited to 'target-arm')
-rw-r--r-- | target-arm/cpu.h | 11 | ||||
-rw-r--r-- | target-arm/exec.h | 2 | ||||
-rw-r--r-- | target-arm/helper.c | 9 | ||||
-rw-r--r-- | target-arm/op_helper.c | 4 |
4 files changed, 19 insertions, 7 deletions
diff --git a/target-arm/cpu.h b/target-arm/cpu.h index 7510a2480a..5ffca1145b 100644 --- a/target-arm/cpu.h +++ b/target-arm/cpu.h @@ -43,6 +43,8 @@ typedef void ARMWriteCPFunc(void *opaque, int cp_info, typedef uint32_t ARMReadCPFunc(void *opaque, int cp_info, int dstreg, int operand); +#define NB_MMU_MODES 2 + /* We currently assume float and double are IEEE single and double precision respectively. Doing runtime conversions is tricky because VFP registers may contain @@ -301,6 +303,15 @@ void cpu_arm_set_cp_io(CPUARMState *env, int cpnum, #define cpu_signal_handler cpu_arm_signal_handler #define cpu_list arm_cpu_list +/* MMU modes definitions */ +#define MMU_MODE0_SUFFIX _kernel +#define MMU_MODE1_SUFFIX _user +#define MMU_USER_IDX 1 +static inline int cpu_mmu_index (CPUState *env) +{ + return (env->uncached_cpsr & CPSR_M) == ARM_CPU_MODE_USR ? 1 : 0; +} + #include "cpu-all.h" #endif diff --git a/target-arm/exec.h b/target-arm/exec.h index 9da19150b2..0c53b8d5f5 100644 --- a/target-arm/exec.h +++ b/target-arm/exec.h @@ -46,7 +46,7 @@ static inline void regs_to_env(void) } int cpu_arm_handle_mmu_fault (CPUState *env, target_ulong address, int rw, - int is_user, int is_softmmu); + int mmu_idx, int is_softmmu); static inline int cpu_halted(CPUState *env) { if (!env->halted) diff --git a/target-arm/helper.c b/target-arm/helper.c index 4501feaef1..4f851ce220 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -169,7 +169,7 @@ void do_interrupt (CPUState *env) } int cpu_arm_handle_mmu_fault (CPUState *env, target_ulong address, int rw, - int is_user, int is_softmmu) + int mmu_idx, int is_softmmu) { if (rw == 2) { env->exception_index = EXCP_PREFETCH_ABORT; @@ -547,18 +547,19 @@ do_fault: } int cpu_arm_handle_mmu_fault (CPUState *env, target_ulong address, - int access_type, int is_user, int is_softmmu) + int access_type, int mmu_idx, int is_softmmu) { uint32_t phys_addr; int prot; - int ret; + int ret, is_user; + is_user = mmu_idx == MMU_USER_IDX; ret = get_phys_addr(env, address, access_type, is_user, &phys_addr, &prot); if (ret == 0) { /* Map a single [sub]page. */ phys_addr &= ~(uint32_t)0x3ff; address &= ~(uint32_t)0x3ff; - return tlb_set_page (env, address, phys_addr, prot, is_user, + return tlb_set_page (env, address, phys_addr, prot, mmu_idx, is_softmmu); } diff --git a/target-arm/op_helper.c b/target-arm/op_helper.c index c861bf7e4c..c0e7c8d64a 100644 --- a/target-arm/op_helper.c +++ b/target-arm/op_helper.c @@ -196,7 +196,7 @@ void do_vfp_get_fpscr(void) NULL, it means that the function was called in C code (i.e. not from generated code or from helper.c) */ /* XXX: fix it to restore all registers */ -void tlb_fill (target_ulong addr, int is_write, int is_user, void *retaddr) +void tlb_fill (target_ulong addr, int is_write, int mmu_idx, void *retaddr) { TranslationBlock *tb; CPUState *saved_env; @@ -207,7 +207,7 @@ void tlb_fill (target_ulong addr, int is_write, int is_user, void *retaddr) generated code */ saved_env = env; env = cpu_single_env; - ret = cpu_arm_handle_mmu_fault(env, addr, is_write, is_user, 1); + ret = cpu_arm_handle_mmu_fault(env, addr, is_write, mmu_idx, 1); if (__builtin_expect(ret, 0)) { if (retaddr) { /* now we have a real cpu fault */ |