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target-mips: add a function to do virtual -> physical translations

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Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2009-11-30 01:39:22 +01:00
parent 1147e18994
commit 25b91e32e0
2 changed files with 25 additions and 0 deletions
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2
target-mips/cpu.h
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@ -590,6 +590,8 @@ int cpu_mips_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
#define cpu_handle_mmu_fault cpu_mips_handle_mmu_fault
void do_interrupt (CPUState *env);
void r4k_invalidate_tlb (CPUState *env, int idx, int use_extra);
target_phys_addr_t do_translate_address (CPUState *env, target_ulong address,
int rw);
static inline void cpu_pc_from_tb(CPUState *env, TranslationBlock *tb)
{

23
target-mips/helper.c
View File

@ -310,6 +310,29 @@ int cpu_mips_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
return ret;
}
#if !defined(CONFIG_USER_ONLY)
target_phys_addr_t do_translate_address(CPUState *env, target_ulong address, int rw)
{
target_phys_addr_t physical;
int prot;
int access_type;
int ret = 0;
rw &= 1;
/* data access */
access_type = ACCESS_INT;
ret = get_physical_address(env, &physical, &prot,
address, rw, access_type);
if (ret != TLBRET_MATCH) {
raise_mmu_exception(env, address, rw, ret);
cpu_loop_exit();
}
return physical;
}
#endif
static const char * const excp_names[EXCP_LAST + 1] = {
[EXCP_RESET] = "reset",
[EXCP_SRESET] = "soft reset",