static int ppc_hash32_get_bat(CPUPPCState *env, struct mmu_ctx_hash32 *ctx, target_ulong virtual, int rwx) { target_ulong *BATlt, *BATut; target_ulong BEPIl, BEPIu, bl; int i, valid, prot; int ret = -1; LOG_BATS("%s: %cBAT v " TARGET_FMT_lx "\n", __func__, rwx == 2 ? 'I' : 'D', virtual); if (rwx == 2) { BATlt = env->IBAT[1]; BATut = env->IBAT[0]; } else { BATlt = env->DBAT[1]; BATut = env->DBAT[0]; } for (i = 0; i < env->nb_BATs; i++) { target_ulong batu = BATut[i]; target_ulong batl = BATlt[i]; BEPIu = batu & BATU32_BEPIU; BEPIl = batu & BATU32_BEPIL; if (unlikely(env->mmu_model == POWERPC_MMU_601)) { hash32_bat_601_size(env, &bl, &valid, batu, batl); prot = hash32_bat_601_prot(env, batu, batl); } else { hash32_bat_size(env, &bl, &valid, batu, batl); prot = hash32_bat_prot(env, batu, batl); } LOG_BATS("%s: %cBAT%d v " TARGET_FMT_lx " BATu " TARGET_FMT_lx " BATl " TARGET_FMT_lx "\n", __func__, type == ACCESS_CODE ? 'I' : 'D', i, virtual, batu, batl); if ((virtual & BATU32_BEPIU) == BEPIu && ((virtual & BATU32_BEPIL) & ~bl) == BEPIl) { /* BAT matches */ if (valid != 0) { /* Get physical address */ ctx->raddr = (batl & BATL32_BRPNU) | ((virtual & BATU32_BEPIL & bl) | (batl & BATL32_BRPNL)) | (virtual & 0x0001F000); /* Compute access rights */ ctx->prot = prot; ret = ppc_hash32_check_prot(ctx->prot, rwx); if (ret == 0) { LOG_BATS("BAT %d match: r " TARGET_FMT_plx " prot=%c%c\n", i, ctx->raddr, ctx->prot & PAGE_READ ? 'R' : '-', ctx->prot & PAGE_WRITE ? 'W' : '-'); } break; } } } if (ret < 0) { #if defined(DEBUG_BATS) if (qemu_log_enabled()) { LOG_BATS("no BAT match for " TARGET_FMT_lx ":\n", virtual); for (i = 0; i < 4; i++) { BATu = &BATut[i]; BATl = &BATlt[i]; BEPIu = *BATu & BATU32_BEPIU; BEPIl = *BATu & BATU32_BEPIL; bl = (*BATu & 0x00001FFC) << 15; LOG_BATS("%s: %cBAT%d v " TARGET_FMT_lx " BATu " TARGET_FMT_lx " BATl " TARGET_FMT_lx "\n\t" TARGET_FMT_lx " " TARGET_FMT_lx " " TARGET_FMT_lx "\n", __func__, type == ACCESS_CODE ? 'I' : 'D', i, virtual, *BATu, *BATl, BEPIu, BEPIl, bl); } } #endif } /* No hit */ return ret; }