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target-arm: Make raise_exception() take syndrome and target EL 

Rather than making every caller of raise_exception set the
syndrome and target EL by hand, make these arguments to
raise_exception() and have that do the job.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
This commit is contained in:
Peter Maydell 2015-05-29 11:28:51 +01:00
parent 863b6589d7
commit c63285991b
1 changed files with 28 additions and 40 deletions
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68
target-arm/op_helper.c
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@ -24,12 +24,15 @@
#define SIGNBIT (uint32_t)0x80000000
#define SIGNBIT64 ((uint64_t)1 << 63)
static void raise_exception(CPUARMState *env, int tt)
static void raise_exception(CPUARMState *env, uint32_t excp,
uint32_t syndrome, uint32_t target_el)
{
ARMCPU *cpu = arm_env_get_cpu(env);
CPUState *cs = CPU(cpu);
CPUState *cs = CPU(arm_env_get_cpu(env));
cs->exception_index = tt;
assert(!excp_is_internal(excp));
cs->exception_index = excp;
env->exception.syndrome = syndrome;
env->exception.target_el = target_el;
cpu_loop_exit(cs);
}
@ -109,11 +112,9 @@ void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
exc = EXCP_DATA_ABORT;
}
env->exception.syndrome = syn;
env->exception.target_el = exception_target_el(env);
env->exception.vaddress = addr;
env->exception.fsr = ret;
raise_exception(env, exc);
raise_exception(env, exc, syn, exception_target_el(env));
}
}
#endif
@ -286,13 +287,7 @@ void HELPER(exception_internal)(CPUARMState *env, uint32_t excp)
void HELPER(exception_with_syndrome)(CPUARMState *env, uint32_t excp,
uint32_t syndrome, uint32_t target_el)
{
CPUState *cs = CPU(arm_env_get_cpu(env));
assert(!excp_is_internal(excp));
cs->exception_index = excp;
env->exception.syndrome = syndrome;
env->exception.target_el = target_el;
cpu_loop_exit(cs);
raise_exception(env, excp, syndrome, target_el);
}
uint32_t HELPER(cpsr_read)(CPUARMState *env)
@ -343,9 +338,7 @@ void HELPER(access_check_cp_reg)(CPUARMState *env, void *rip, uint32_t syndrome)
if (arm_feature(env, ARM_FEATURE_XSCALE) && ri->cp < 14
&& extract32(env->cp15.c15_cpar, ri->cp, 1) == 0) {
env->exception.syndrome = syndrome;
env->exception.target_el = exception_target_el(env);
raise_exception(env, EXCP_UDEF);
raise_exception(env, EXCP_UDEF, syndrome, exception_target_el(env));
}
if (!ri->accessfn) {
@ -356,17 +349,15 @@ void HELPER(access_check_cp_reg)(CPUARMState *env, void *rip, uint32_t syndrome)
case CP_ACCESS_OK:
return;
case CP_ACCESS_TRAP:
env->exception.syndrome = syndrome;
env->exception.target_el = exception_target_el(env);
break;
case CP_ACCESS_TRAP_UNCATEGORIZED:
env->exception.syndrome = syn_uncategorized();
env->exception.target_el = exception_target_el(env);
syndrome = syn_uncategorized();
break;
default:
g_assert_not_reached();
}
raise_exception(env, EXCP_UDEF);
raise_exception(env, EXCP_UDEF, syndrome, exception_target_el(env));
}
void HELPER(set_cp_reg)(CPUARMState *env, void *rip, uint32_t value)
@ -404,11 +395,10 @@ void HELPER(msr_i_pstate)(CPUARMState *env, uint32_t op, uint32_t imm)
* to catch that case at translate time.
*/
if (arm_current_el(env) == 0 && !(env->cp15.sctlr_el[1] & SCTLR_UMA)) {
env->exception.target_el = exception_target_el(env);
env->exception.syndrome = syn_aa64_sysregtrap(0, extract32(op, 0, 3),
extract32(op, 3, 3), 4,
imm, 0x1f, 0);
raise_exception(env, EXCP_UDEF);
uint32_t syndrome = syn_aa64_sysregtrap(0, extract32(op, 0, 3),
extract32(op, 3, 3), 4,
imm, 0x1f, 0);
raise_exception(env, EXCP_UDEF, syndrome, exception_target_el(env));
}
switch (op) {
@ -466,9 +456,8 @@ void HELPER(pre_hvc)(CPUARMState *env)
}
if (undef) {
env->exception.syndrome = syn_uncategorized();
env->exception.target_el = exception_target_el(env);
raise_exception(env, EXCP_UDEF);
raise_exception(env, EXCP_UDEF, syn_uncategorized(),
exception_target_el(env));
}
}
@ -497,15 +486,12 @@ void HELPER(pre_smc)(CPUARMState *env, uint32_t syndrome)
undef = true;
} else if (!secure && cur_el == 1 && (env->cp15.hcr_el2 & HCR_TSC)) {
/* In NS EL1, HCR controlled routing to EL2 has priority over SMD. */
env->exception.syndrome = syndrome;
env->exception.target_el = 2;
raise_exception(env, EXCP_HYP_TRAP);
raise_exception(env, EXCP_HYP_TRAP, syndrome, 2);
}
if (undef) {
env->exception.syndrome = syn_uncategorized();
env->exception.target_el = exception_target_el(env);
raise_exception(env, EXCP_UDEF);
raise_exception(env, EXCP_UDEF, syn_uncategorized(),
exception_target_el(env));
}
}
@ -798,14 +784,15 @@ void arm_debug_excp_handler(CPUState *cs)
bool wnr = (wp_hit->flags & BP_WATCHPOINT_HIT_WRITE) != 0;
bool same_el = arm_debug_target_el(env) == arm_current_el(env);
env->exception.syndrome = syn_watchpoint(same_el, 0, wnr);
if (extended_addresses_enabled(env)) {
env->exception.fsr = (1 << 9) | 0x22;
} else {
env->exception.fsr = 0x2;
}
env->exception.vaddress = wp_hit->hitaddr;
raise_exception(env, EXCP_DATA_ABORT);
raise_exception(env, EXCP_DATA_ABORT,
syn_watchpoint(same_el, 0, wnr),
arm_debug_target_el(env));
} else {
cpu_resume_from_signal(cs, NULL);
}
@ -813,14 +800,15 @@ void arm_debug_excp_handler(CPUState *cs)
} else {
if (check_breakpoints(cpu)) {
bool same_el = (arm_debug_target_el(env) == arm_current_el(env));
env->exception.syndrome = syn_breakpoint(same_el);
if (extended_addresses_enabled(env)) {
env->exception.fsr = (1 << 9) | 0x22;
} else {
env->exception.fsr = 0x2;
}
/* FAR is UNKNOWN, so doesn't need setting */
raise_exception(env, EXCP_PREFETCH_ABORT);
raise_exception(env, EXCP_PREFETCH_ABORT,
syn_breakpoint(same_el),
arm_debug_target_el(env));
}
}
}