From 060e8a48cb84d41d4ac36e4bb29d9c14ed7168b6 Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Thu, 5 Feb 2015 13:37:24 +0000 Subject: [PATCH] target-arm: Split AArch64 cases out of ats_write() Instead of simply reusing ats_write() as the handler for both AArch32 and AArch64 address translation operations, use a different function for each with the common code in a third function. This is necessary because the semantics for selecting the right translation regime are different; we are only getting away with sharing currently because we don't support EL2 and only support EL3 in AArch32. Signed-off-by: Peter Maydell Reviewed-by: Greg Bellows Reviewed-by: Edgar E. Iglesias --- target-arm/helper.c | 33 ++++++++++++++++++++++++++------- 1 file changed, 26 insertions(+), 7 deletions(-) diff --git a/target-arm/helper.c b/target-arm/helper.c index 85d02af6d9..6470d6aa83 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -1458,13 +1458,13 @@ static CPAccessResult ats_access(CPUARMState *env, const ARMCPRegInfo *ri) return CP_ACCESS_OK; } -static void ats_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) +static uint64_t do_ats_write(CPUARMState *env, uint64_t value, + int access_type, int is_user) { hwaddr phys_addr; target_ulong page_size; int prot; - int ret, is_user = ri->opc2 & 2; - int access_type = ri->opc2 & 1; + int ret; uint64_t par64; ret = get_phys_addr(env, value, access_type, is_user, @@ -1504,9 +1504,28 @@ static void ats_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) ((ret & 0xf) << 1) | 1; } } + return par64; +} + +static void ats_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) +{ + int is_user = ri->opc2 & 2; + int access_type = ri->opc2 & 1; + uint64_t par64; + + par64 = do_ats_write(env, value, access_type, is_user); A32_BANKED_CURRENT_REG_SET(env, par, par64); } + +static void ats_write64(CPUARMState *env, const ARMCPRegInfo *ri, + uint64_t value) +{ + int is_user = ri->opc2 & 2; + int access_type = ri->opc2 & 1; + + env->cp15.par_el[1] = do_ats_write(env, value, access_type, is_user); +} #endif static const ARMCPRegInfo vapa_cp_reginfo[] = { @@ -2280,16 +2299,16 @@ static const ARMCPRegInfo v8_cp_reginfo[] = { /* 64 bit address translation operations */ { .name = "AT_S1E1R", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 0, - .access = PL1_W, .type = ARM_CP_NO_RAW, .writefn = ats_write }, + .access = PL1_W, .type = ARM_CP_NO_RAW, .writefn = ats_write64 }, { .name = "AT_S1E1W", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 1, - .access = PL1_W, .type = ARM_CP_NO_RAW, .writefn = ats_write }, + .access = PL1_W, .type = ARM_CP_NO_RAW, .writefn = ats_write64 }, { .name = "AT_S1E0R", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 2, - .access = PL1_W, .type = ARM_CP_NO_RAW, .writefn = ats_write }, + .access = PL1_W, .type = ARM_CP_NO_RAW, .writefn = ats_write64 }, { .name = "AT_S1E0W", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 3, - .access = PL1_W, .type = ARM_CP_NO_RAW, .writefn = ats_write }, + .access = PL1_W, .type = ARM_CP_NO_RAW, .writefn = ats_write64 }, #endif /* TLB invalidate last level of translation table walk */ { .name = "TLBIMVALIS", .cp = 15, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 5,