static int pte_check_hash32(mmu_ctx_t *ctx, target_ulong pte0, target_ulong pte1, int h, int rw, int type) { target_ulong ptem, mmask; int access, ret, pteh, ptev, pp; ret = -1; /* Check validity and table match */ ptev = pte_is_valid_hash32(pte0); pteh = (pte0 >> 6) & 1; if (ptev && h == pteh) { /* Check vsid & api */ ptem = pte0 & PTE_PTEM_MASK; mmask = PTE_CHECK_MASK; pp = pte1 & 0x00000003; if (ptem == ctx->ptem) { if (ctx->raddr != (hwaddr)-1ULL) { /* all matches should have equal RPN, WIMG & PP */ if ((ctx->raddr & mmask) != (pte1 & mmask)) { qemu_log("Bad RPN/WIMG/PP\n"); return -3; } } /* Compute access rights */ access = pp_check(ctx->key, pp, ctx->nx); /* Keep the matching PTE informations */ ctx->raddr = pte1; ctx->prot = access; ret = check_prot(ctx->prot, rw, type); if (ret == 0) { /* Access granted */ LOG_MMU("PTE access granted !\n"); } else { /* Access right violation */ LOG_MMU("PTE access rejected\n"); } } } return ret; }