From 4a7e2d7315bd2ce28e49ccd0bde73eabdfd7437b Mon Sep 17 00:00:00 2001 From: Fabian Aggeler Date: Thu, 11 Dec 2014 12:07:51 +0000 Subject: [PATCH] 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 Signed-off-by: Greg Bellows Reviewed-by: Peter Maydell Message-id: 1416242878-876-21-git-send-email-greg.bellows@linaro.org Signed-off-by: Peter Maydell --- target-arm/cpu.h | 10 +++++++++- target-arm/helper.c | 7 ++++--- 2 files changed, 13 insertions(+), 4 deletions(-) diff --git a/target-arm/cpu.h b/target-arm/cpu.h index e8bb057ffc..29870bda4e 100644 --- a/target-arm/cpu.h +++ b/target-arm/cpu.h @@ -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. */ diff --git a/target-arm/helper.c b/target-arm/helper.c index cfb267ff59..ebb6694f4f 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -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;