diff options
| author | Fabian Aggeler <aggelerf@ethz.ch> | 2014-12-11 12:07:52 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2014-12-11 12:07:52 +0000 |
| commit | 01c097f7960b330c4bf038d34bae17ad6c1ba499 (patch) | |
| tree | 3aee3b65c50b078c70cbe582f7146baa022a0bc9 /target-arm | |
| parent | b848ce2b9cbd38da3f2530fd93dba76dba0621c0 (diff) | |
target-arm: make PAR banked
When EL3 is running in AArch32 (or ARMv7 with Security Extensions)
PAR 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: 1416242878-876-23-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-arm')
| -rw-r--r-- | target-arm/cpu.h | 10 | ||||
| -rw-r--r-- | target-arm/helper.c | 23 |
2 files changed, 22 insertions, 11 deletions
diff --git a/target-arm/cpu.h b/target-arm/cpu.h index 52d5719087..2f8d607ffa 100644 --- a/target-arm/cpu.h +++ b/target-arm/cpu.h @@ -279,7 +279,15 @@ typedef struct CPUARMState { }; uint64_t far_el[4]; }; - uint64_t par_el1; /* Translation result. */ + union { /* Translation result. */ + struct { + uint64_t _unused_par_0; + uint64_t par_ns; + uint64_t _unused_par_1; + uint64_t par_s; + }; + uint64_t par_el[4]; + }; uint32_t c9_insn; /* Cache lockdown registers. */ uint32_t c9_data; uint64_t c9_pmcr; /* performance monitor control register */ diff --git a/target-arm/helper.c b/target-arm/helper.c index 0c8b532ceb..d2e765295c 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -1404,6 +1404,7 @@ static void ats_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) int prot; int ret, is_user = ri->opc2 & 2; int access_type = ri->opc2 & 1; + uint64_t par64; ret = get_phys_addr(env, value, access_type, is_user, &phys_addr, &prot, &page_size); @@ -1412,7 +1413,7 @@ static void ats_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) * translation table format, but with WnR always clear. * Convert it to a 64-bit PAR. */ - uint64_t par64 = (1 << 11); /* LPAE bit always set */ + par64 = (1 << 11); /* LPAE bit always set */ if (ret == 0) { par64 |= phys_addr & ~0xfffULL; /* We don't set the ATTR or SH fields in the PAR. */ @@ -1424,7 +1425,6 @@ static void ats_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) * fault. */ } - env->cp15.par_el1 = par64; } else { /* ret is a DFSR/IFSR value for the short descriptor * translation table format (with WnR always clear). @@ -1434,23 +1434,25 @@ static void ats_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) /* We do not set any attribute bits in the PAR */ if (page_size == (1 << 24) && arm_feature(env, ARM_FEATURE_V7)) { - env->cp15.par_el1 = (phys_addr & 0xff000000) | 1 << 1; + par64 = (phys_addr & 0xff000000) | (1 << 1); } else { - env->cp15.par_el1 = phys_addr & 0xfffff000; + par64 = phys_addr & 0xfffff000; } } else { - env->cp15.par_el1 = ((ret & (1 << 10)) >> 5) | - ((ret & (1 << 12)) >> 6) | - ((ret & 0xf) << 1) | 1; + par64 = ((ret & (1 << 10)) >> 5) | ((ret & (1 << 12)) >> 6) | + ((ret & 0xf) << 1) | 1; } } + + A32_BANKED_CURRENT_REG_SET(env, par, par64); } #endif static const ARMCPRegInfo vapa_cp_reginfo[] = { { .name = "PAR", .cp = 15, .crn = 7, .crm = 4, .opc1 = 0, .opc2 = 0, .access = PL1_RW, .resetvalue = 0, - .fieldoffset = offsetoflow32(CPUARMState, cp15.par_el1), + .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.par_s), + offsetoflow32(CPUARMState, cp15.par_ns) }, .writefn = par_write }, #ifndef CONFIG_USER_ONLY { .name = "ATS", .cp = 15, .crn = 7, .crm = 8, .opc1 = 0, .opc2 = CP_ANY, @@ -1903,8 +1905,9 @@ static const ARMCPRegInfo lpae_cp_reginfo[] = { .access = PL1_RW, .type = ARM_CP_CONST | ARM_CP_OVERRIDE, .resetvalue = 0 }, { .name = "PAR", .cp = 15, .crm = 7, .opc1 = 0, - .access = PL1_RW, .type = ARM_CP_64BIT, - .fieldoffset = offsetof(CPUARMState, cp15.par_el1), .resetvalue = 0 }, + .access = PL1_RW, .type = ARM_CP_64BIT, .resetvalue = 0, + .bank_fieldoffsets = { offsetof(CPUARMState, cp15.par_s), + offsetof(CPUARMState, cp15.par_ns)} }, { .name = "TTBR0", .cp = 15, .crm = 2, .opc1 = 0, .access = PL1_RW, .type = ARM_CP_64BIT | ARM_CP_NO_MIGRATE, .bank_fieldoffsets = { offsetof(CPUARMState, cp15.ttbr0_s), |