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Diffstat (limited to 'target-arm')
-rw-r--r--target-arm/cpu.h11
-rw-r--r--target-arm/exec.h2
-rw-r--r--target-arm/helper.c9
-rw-r--r--target-arm/op_helper.c4
4 files changed, 19 insertions, 7 deletions
diff --git a/target-arm/cpu.h b/target-arm/cpu.h
index 7510a24..5ffca11 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 9da1915..0c53b8d 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 4501fea..4f851ce 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 c861bf7..c0e7c8d 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 */