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target-arm: make DFSR banked 

When EL3 is running in AArch32 (or ARMv7 with Security Extensions)
DFSR has a secure and a non-secure instance.

Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch>
Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1416242878-876-21-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
master
Fabian Aggeler 2014-12-11 12:07:51 +00:00 committed by Peter Maydell
parent 88ca1c2d70
commit 4a7e2d7315
2 changed files with 13 additions and 4 deletions
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10
target-arm/cpu.h
View File

@ -251,7 +251,15 @@ typedef struct CPUARMState {
uint64_t ifsr32_el2;
};
};
uint64_t esr_el[4];
union {
struct {
uint64_t _unused_dfsr;
uint64_t dfsr_ns;
uint64_t hsr;
uint64_t dfsr_s;
};
uint64_t esr_el[4];
};
uint32_t c6_region[8]; /* MPU base/size registers. */
uint64_t far_el[4]; /* Fault address registers. */
uint64_t par_el1; /* Translation result. */

7
target-arm/helper.c
View File

@ -1651,7 +1651,8 @@ static void vmsa_ttbr_write(CPUARMState *env, const ARMCPRegInfo *ri,
static const ARMCPRegInfo vmsa_cp_reginfo[] = {
{ .name = "DFSR", .cp = 15, .crn = 5, .crm = 0, .opc1 = 0, .opc2 = 0,
.access = PL1_RW, .type = ARM_CP_NO_MIGRATE,
.fieldoffset = offsetoflow32(CPUARMState, cp15.esr_el[1]),
.bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.dfsr_s),
offsetoflow32(CPUARMState, cp15.dfsr_ns) },
.resetfn = arm_cp_reset_ignore, },
{ .name = "IFSR", .cp = 15, .crn = 5, .crm = 0, .opc1 = 0, .opc2 = 1,
.access = PL1_RW, .resetvalue = 0,
@ -4339,11 +4340,11 @@ void arm_cpu_do_interrupt(CPUState *cs)
offset = 4;
break;
case EXCP_DATA_ABORT:
env->cp15.esr_el[1] = env->exception.fsr;
A32_BANKED_CURRENT_REG_SET(env, dfsr, env->exception.fsr);
env->cp15.far_el[1] = deposit64(env->cp15.far_el[1], 0, 32,
env->exception.vaddress);
qemu_log_mask(CPU_LOG_INT, "...with DFSR 0x%x DFAR 0x%x\n",
(uint32_t)env->cp15.esr_el[1],
env->exception.fsr,
(uint32_t)env->exception.vaddress);
new_mode = ARM_CPU_MODE_ABT;
addr = 0x10;