diff options
Diffstat (limited to 'target/sparc/ldst_helper.c')
| -rw-r--r-- | target/sparc/ldst_helper.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/target/sparc/ldst_helper.c b/target/sparc/ldst_helper.c index 7a134b3c0d..2e6439a6d9 100644 --- a/target/sparc/ldst_helper.c +++ b/target/sparc/ldst_helper.c @@ -1351,6 +1351,18 @@ uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong addr, } break; } + case ASI_SCRATCHPAD: /* UA2005 privileged scratchpad */ + if (unlikely((addr >= 0x20) && (addr < 0x30))) { + /* Hyperprivileged access only */ + cpu_unassigned_access(cs, addr, false, false, 1, size); + } + /* fall through */ + case ASI_HYP_SCRATCHPAD: /* UA2005 hyperprivileged scratchpad */ + { + unsigned int i = (addr >> 3) & 0x7; + ret = env->scratch[i]; + break; + } case ASI_DCACHE_DATA: /* D-cache data */ case ASI_DCACHE_TAG: /* D-cache tag access */ case ASI_ESTATE_ERROR_EN: /* E-cache error enable */ @@ -1603,6 +1615,18 @@ void helper_st_asi(CPUSPARCState *env, target_ulong addr, target_ulong val, case ASI_INTR_RECEIVE: /* Interrupt data receive */ env->ivec_status = val & 0x20; return; + case ASI_SCRATCHPAD: /* UA2005 privileged scratchpad */ + if (unlikely((addr >= 0x20) && (addr < 0x30))) { + /* Hyperprivileged access only */ + cpu_unassigned_access(cs, addr, true, false, 1, size); + } + /* fall through */ + case ASI_HYP_SCRATCHPAD: /* UA2005 hyperprivileged scratchpad */ + { + unsigned int i = (addr >> 3) & 0x7; + env->scratch[i] = val; + return; + } case ASI_DCACHE_DATA: /* D-cache data */ case ASI_DCACHE_TAG: /* D-cache tag access */ case ASI_ESTATE_ERROR_EN: /* E-cache error enable */ |