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-rw-r--r--qemu/target-ppc/mmu_helper.c2903
1 files changed, 0 insertions, 2903 deletions
diff --git a/qemu/target-ppc/mmu_helper.c b/qemu/target-ppc/mmu_helper.c
deleted file mode 100644
index ff217941b..000000000
--- a/qemu/target-ppc/mmu_helper.c
+++ /dev/null
@@ -1,2903 +0,0 @@
-/*
- * PowerPC MMU, TLB, SLB and BAT emulation helpers for QEMU.
- *
- * Copyright (c) 2003-2007 Jocelyn Mayer
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "cpu.h"
-#include "exec/helper-proto.h"
-#include "sysemu/kvm.h"
-#include "kvm_ppc.h"
-#include "mmu-hash64.h"
-#include "mmu-hash32.h"
-#include "exec/cpu_ldst.h"
-#include "exec/log.h"
-
-//#define DEBUG_MMU
-//#define DEBUG_BATS
-//#define DEBUG_SOFTWARE_TLB
-//#define DUMP_PAGE_TABLES
-//#define FLUSH_ALL_TLBS
-
-#ifdef DEBUG_MMU
-# define LOG_MMU_STATE(cpu) log_cpu_state_mask(CPU_LOG_MMU, (cpu), 0)
-#else
-# define LOG_MMU_STATE(cpu) do { } while (0)
-#endif
-
-#ifdef DEBUG_SOFTWARE_TLB
-# define LOG_SWTLB(...) qemu_log_mask(CPU_LOG_MMU, __VA_ARGS__)
-#else
-# define LOG_SWTLB(...) do { } while (0)
-#endif
-
-#ifdef DEBUG_BATS
-# define LOG_BATS(...) qemu_log_mask(CPU_LOG_MMU, __VA_ARGS__)
-#else
-# define LOG_BATS(...) do { } while (0)
-#endif
-
-/*****************************************************************************/
-/* PowerPC MMU emulation */
-
-/* Context used internally during MMU translations */
-typedef struct mmu_ctx_t mmu_ctx_t;
-struct mmu_ctx_t {
- hwaddr raddr; /* Real address */
- hwaddr eaddr; /* Effective address */
- int prot; /* Protection bits */
- hwaddr hash[2]; /* Pagetable hash values */
- target_ulong ptem; /* Virtual segment ID | API */
- int key; /* Access key */
- int nx; /* Non-execute area */
-};
-
-/* Common routines used by software and hardware TLBs emulation */
-static inline int pte_is_valid(target_ulong pte0)
-{
- return pte0 & 0x80000000 ? 1 : 0;
-}
-
-static inline void pte_invalidate(target_ulong *pte0)
-{
- *pte0 &= ~0x80000000;
-}
-
-#define PTE_PTEM_MASK 0x7FFFFFBF
-#define PTE_CHECK_MASK (TARGET_PAGE_MASK | 0x7B)
-
-static int pp_check(int key, int pp, int nx)
-{
- int access;
-
- /* Compute access rights */
- access = 0;
- if (key == 0) {
- switch (pp) {
- case 0x0:
- case 0x1:
- case 0x2:
- access |= PAGE_WRITE;
- /* No break here */
- case 0x3:
- access |= PAGE_READ;
- break;
- }
- } else {
- switch (pp) {
- case 0x0:
- access = 0;
- break;
- case 0x1:
- case 0x3:
- access = PAGE_READ;
- break;
- case 0x2:
- access = PAGE_READ | PAGE_WRITE;
- break;
- }
- }
- if (nx == 0) {
- access |= PAGE_EXEC;
- }
-
- return access;
-}
-
-static int check_prot(int prot, int rw, int access_type)
-{
- int ret;
-
- if (access_type == ACCESS_CODE) {
- if (prot & PAGE_EXEC) {
- ret = 0;
- } else {
- ret = -2;
- }
- } else if (rw) {
- if (prot & PAGE_WRITE) {
- ret = 0;
- } else {
- ret = -2;
- }
- } else {
- if (prot & PAGE_READ) {
- ret = 0;
- } else {
- ret = -2;
- }
- }
-
- return ret;
-}
-
-static inline int ppc6xx_tlb_pte_check(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(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_mask(CPU_LOG_MMU, "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 */
- qemu_log_mask(CPU_LOG_MMU, "PTE access granted !\n");
- } else {
- /* Access right violation */
- qemu_log_mask(CPU_LOG_MMU, "PTE access rejected\n");
- }
- }
- }
-
- return ret;
-}
-
-static int pte_update_flags(mmu_ctx_t *ctx, target_ulong *pte1p,
- int ret, int rw)
-{
- int store = 0;
-
- /* Update page flags */
- if (!(*pte1p & 0x00000100)) {
- /* Update accessed flag */
- *pte1p |= 0x00000100;
- store = 1;
- }
- if (!(*pte1p & 0x00000080)) {
- if (rw == 1 && ret == 0) {
- /* Update changed flag */
- *pte1p |= 0x00000080;
- store = 1;
- } else {
- /* Force page fault for first write access */
- ctx->prot &= ~PAGE_WRITE;
- }
- }
-
- return store;
-}
-
-/* Software driven TLB helpers */
-static inline int ppc6xx_tlb_getnum(CPUPPCState *env, target_ulong eaddr,
- int way, int is_code)
-{
- int nr;
-
- /* Select TLB num in a way from address */
- nr = (eaddr >> TARGET_PAGE_BITS) & (env->tlb_per_way - 1);
- /* Select TLB way */
- nr += env->tlb_per_way * way;
- /* 6xx have separate TLBs for instructions and data */
- if (is_code && env->id_tlbs == 1) {
- nr += env->nb_tlb;
- }
-
- return nr;
-}
-
-static inline void ppc6xx_tlb_invalidate_all(CPUPPCState *env)
-{
- PowerPCCPU *cpu = ppc_env_get_cpu(env);
- ppc6xx_tlb_t *tlb;
- int nr, max;
-
- /* LOG_SWTLB("Invalidate all TLBs\n"); */
- /* Invalidate all defined software TLB */
- max = env->nb_tlb;
- if (env->id_tlbs == 1) {
- max *= 2;
- }
- for (nr = 0; nr < max; nr++) {
- tlb = &env->tlb.tlb6[nr];
- pte_invalidate(&tlb->pte0);
- }
- tlb_flush(CPU(cpu), 1);
-}
-
-static inline void ppc6xx_tlb_invalidate_virt2(CPUPPCState *env,
- target_ulong eaddr,
- int is_code, int match_epn)
-{
-#if !defined(FLUSH_ALL_TLBS)
- CPUState *cs = CPU(ppc_env_get_cpu(env));
- ppc6xx_tlb_t *tlb;
- int way, nr;
-
- /* Invalidate ITLB + DTLB, all ways */
- for (way = 0; way < env->nb_ways; way++) {
- nr = ppc6xx_tlb_getnum(env, eaddr, way, is_code);
- tlb = &env->tlb.tlb6[nr];
- if (pte_is_valid(tlb->pte0) && (match_epn == 0 || eaddr == tlb->EPN)) {
- LOG_SWTLB("TLB invalidate %d/%d " TARGET_FMT_lx "\n", nr,
- env->nb_tlb, eaddr);
- pte_invalidate(&tlb->pte0);
- tlb_flush_page(cs, tlb->EPN);
- }
- }
-#else
- /* XXX: PowerPC specification say this is valid as well */
- ppc6xx_tlb_invalidate_all(env);
-#endif
-}
-
-static inline void ppc6xx_tlb_invalidate_virt(CPUPPCState *env,
- target_ulong eaddr, int is_code)
-{
- ppc6xx_tlb_invalidate_virt2(env, eaddr, is_code, 0);
-}
-
-static void ppc6xx_tlb_store(CPUPPCState *env, target_ulong EPN, int way,
- int is_code, target_ulong pte0, target_ulong pte1)
-{
- ppc6xx_tlb_t *tlb;
- int nr;
-
- nr = ppc6xx_tlb_getnum(env, EPN, way, is_code);
- tlb = &env->tlb.tlb6[nr];
- LOG_SWTLB("Set TLB %d/%d EPN " TARGET_FMT_lx " PTE0 " TARGET_FMT_lx
- " PTE1 " TARGET_FMT_lx "\n", nr, env->nb_tlb, EPN, pte0, pte1);
- /* Invalidate any pending reference in QEMU for this virtual address */
- ppc6xx_tlb_invalidate_virt2(env, EPN, is_code, 1);
- tlb->pte0 = pte0;
- tlb->pte1 = pte1;
- tlb->EPN = EPN;
- /* Store last way for LRU mechanism */
- env->last_way = way;
-}
-
-static inline int ppc6xx_tlb_check(CPUPPCState *env, mmu_ctx_t *ctx,
- target_ulong eaddr, int rw, int access_type)
-{
- ppc6xx_tlb_t *tlb;
- int nr, best, way;
- int ret;
-
- best = -1;
- ret = -1; /* No TLB found */
- for (way = 0; way < env->nb_ways; way++) {
- nr = ppc6xx_tlb_getnum(env, eaddr, way,
- access_type == ACCESS_CODE ? 1 : 0);
- tlb = &env->tlb.tlb6[nr];
- /* This test "emulates" the PTE index match for hardware TLBs */
- if ((eaddr & TARGET_PAGE_MASK) != tlb->EPN) {
- LOG_SWTLB("TLB %d/%d %s [" TARGET_FMT_lx " " TARGET_FMT_lx
- "] <> " TARGET_FMT_lx "\n", nr, env->nb_tlb,
- pte_is_valid(tlb->pte0) ? "valid" : "inval",
- tlb->EPN, tlb->EPN + TARGET_PAGE_SIZE, eaddr);
- continue;
- }
- LOG_SWTLB("TLB %d/%d %s " TARGET_FMT_lx " <> " TARGET_FMT_lx " "
- TARGET_FMT_lx " %c %c\n", nr, env->nb_tlb,
- pte_is_valid(tlb->pte0) ? "valid" : "inval",
- tlb->EPN, eaddr, tlb->pte1,
- rw ? 'S' : 'L', access_type == ACCESS_CODE ? 'I' : 'D');
- switch (ppc6xx_tlb_pte_check(ctx, tlb->pte0, tlb->pte1, 0, rw, access_type)) {
- case -3:
- /* TLB inconsistency */
- return -1;
- case -2:
- /* Access violation */
- ret = -2;
- best = nr;
- break;
- case -1:
- default:
- /* No match */
- break;
- case 0:
- /* access granted */
- /* XXX: we should go on looping to check all TLBs consistency
- * but we can speed-up the whole thing as the
- * result would be undefined if TLBs are not consistent.
- */
- ret = 0;
- best = nr;
- goto done;
- }
- }
- if (best != -1) {
- done:
- LOG_SWTLB("found TLB at addr " TARGET_FMT_plx " prot=%01x ret=%d\n",
- ctx->raddr & TARGET_PAGE_MASK, ctx->prot, ret);
- /* Update page flags */
- pte_update_flags(ctx, &env->tlb.tlb6[best].pte1, ret, rw);
- }
-
- return ret;
-}
-
-/* Perform BAT hit & translation */
-static inline void bat_size_prot(CPUPPCState *env, target_ulong *blp,
- int *validp, int *protp, target_ulong *BATu,
- target_ulong *BATl)
-{
- target_ulong bl;
- int pp, valid, prot;
-
- bl = (*BATu & 0x00001FFC) << 15;
- valid = 0;
- prot = 0;
- if (((msr_pr == 0) && (*BATu & 0x00000002)) ||
- ((msr_pr != 0) && (*BATu & 0x00000001))) {
- valid = 1;
- pp = *BATl & 0x00000003;
- if (pp != 0) {
- prot = PAGE_READ | PAGE_EXEC;
- if (pp == 0x2) {
- prot |= PAGE_WRITE;
- }
- }
- }
- *blp = bl;
- *validp = valid;
- *protp = prot;
-}
-
-static int get_bat_6xx_tlb(CPUPPCState *env, mmu_ctx_t *ctx,
- target_ulong virtual, int rw, int type)
-{
- target_ulong *BATlt, *BATut, *BATu, *BATl;
- target_ulong BEPIl, BEPIu, bl;
- int i, valid, prot;
- int ret = -1;
-
- LOG_BATS("%s: %cBAT v " TARGET_FMT_lx "\n", __func__,
- type == ACCESS_CODE ? 'I' : 'D', virtual);
- switch (type) {
- case ACCESS_CODE:
- BATlt = env->IBAT[1];
- BATut = env->IBAT[0];
- break;
- default:
- BATlt = env->DBAT[1];
- BATut = env->DBAT[0];
- break;
- }
- for (i = 0; i < env->nb_BATs; i++) {
- BATu = &BATut[i];
- BATl = &BATlt[i];
- BEPIu = *BATu & 0xF0000000;
- BEPIl = *BATu & 0x0FFE0000;
- bat_size_prot(env, &bl, &valid, &prot, 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 & 0xF0000000) == BEPIu &&
- ((virtual & 0x0FFE0000) & ~bl) == BEPIl) {
- /* BAT matches */
- if (valid != 0) {
- /* Get physical address */
- ctx->raddr = (*BATl & 0xF0000000) |
- ((virtual & 0x0FFE0000 & bl) | (*BATl & 0x0FFE0000)) |
- (virtual & 0x0001F000);
- /* Compute access rights */
- ctx->prot = prot;
- ret = check_prot(ctx->prot, rw, type);
- 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 & 0xF0000000;
- BEPIl = *BATu & 0x0FFE0000;
- 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;
-}
-
-/* Perform segment based translation */
-static inline int get_segment_6xx_tlb(CPUPPCState *env, mmu_ctx_t *ctx,
- target_ulong eaddr, int rw, int type)
-{
- hwaddr hash;
- target_ulong vsid;
- int ds, pr, target_page_bits;
- int ret;
- target_ulong sr, pgidx;
-
- pr = msr_pr;
- ctx->eaddr = eaddr;
-
- sr = env->sr[eaddr >> 28];
- ctx->key = (((sr & 0x20000000) && (pr != 0)) ||
- ((sr & 0x40000000) && (pr == 0))) ? 1 : 0;
- ds = sr & 0x80000000 ? 1 : 0;
- ctx->nx = sr & 0x10000000 ? 1 : 0;
- vsid = sr & 0x00FFFFFF;
- target_page_bits = TARGET_PAGE_BITS;
- qemu_log_mask(CPU_LOG_MMU,
- "Check segment v=" TARGET_FMT_lx " %d " TARGET_FMT_lx
- " nip=" TARGET_FMT_lx " lr=" TARGET_FMT_lx
- " ir=%d dr=%d pr=%d %d t=%d\n",
- eaddr, (int)(eaddr >> 28), sr, env->nip, env->lr, (int)msr_ir,
- (int)msr_dr, pr != 0 ? 1 : 0, rw, type);
- pgidx = (eaddr & ~SEGMENT_MASK_256M) >> target_page_bits;
- hash = vsid ^ pgidx;
- ctx->ptem = (vsid << 7) | (pgidx >> 10);
-
- qemu_log_mask(CPU_LOG_MMU,
- "pte segment: key=%d ds %d nx %d vsid " TARGET_FMT_lx "\n",
- ctx->key, ds, ctx->nx, vsid);
- ret = -1;
- if (!ds) {
- /* Check if instruction fetch is allowed, if needed */
- if (type != ACCESS_CODE || ctx->nx == 0) {
- /* Page address translation */
- qemu_log_mask(CPU_LOG_MMU, "htab_base " TARGET_FMT_plx
- " htab_mask " TARGET_FMT_plx
- " hash " TARGET_FMT_plx "\n",
- env->htab_base, env->htab_mask, hash);
- ctx->hash[0] = hash;
- ctx->hash[1] = ~hash;
-
- /* Initialize real address with an invalid value */
- ctx->raddr = (hwaddr)-1ULL;
- /* Software TLB search */
- ret = ppc6xx_tlb_check(env, ctx, eaddr, rw, type);
-#if defined(DUMP_PAGE_TABLES)
- if (qemu_log_mask(CPU_LOG_MMU)) {
- hwaddr curaddr;
- uint32_t a0, a1, a2, a3;
-
- qemu_log("Page table: " TARGET_FMT_plx " len " TARGET_FMT_plx
- "\n", sdr, mask + 0x80);
- for (curaddr = sdr; curaddr < (sdr + mask + 0x80);
- curaddr += 16) {
- a0 = ldl_phys(curaddr);
- a1 = ldl_phys(curaddr + 4);
- a2 = ldl_phys(curaddr + 8);
- a3 = ldl_phys(curaddr + 12);
- if (a0 != 0 || a1 != 0 || a2 != 0 || a3 != 0) {
- qemu_log(TARGET_FMT_plx ": %08x %08x %08x %08x\n",
- curaddr, a0, a1, a2, a3);
- }
- }
- }
-#endif
- } else {
- qemu_log_mask(CPU_LOG_MMU, "No access allowed\n");
- ret = -3;
- }
- } else {
- target_ulong sr;
-
- qemu_log_mask(CPU_LOG_MMU, "direct store...\n");
- /* Direct-store segment : absolutely *BUGGY* for now */
-
- /* Direct-store implies a 32-bit MMU.
- * Check the Segment Register's bus unit ID (BUID).
- */
- sr = env->sr[eaddr >> 28];
- if ((sr & 0x1FF00000) >> 20 == 0x07f) {
- /* Memory-forced I/O controller interface access */
- /* If T=1 and BUID=x'07F', the 601 performs a memory access
- * to SR[28-31] LA[4-31], bypassing all protection mechanisms.
- */
- ctx->raddr = ((sr & 0xF) << 28) | (eaddr & 0x0FFFFFFF);
- ctx->prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
- return 0;
- }
-
- switch (type) {
- case ACCESS_INT:
- /* Integer load/store : only access allowed */
- break;
- case ACCESS_CODE:
- /* No code fetch is allowed in direct-store areas */
- return -4;
- case ACCESS_FLOAT:
- /* Floating point load/store */
- return -4;
- case ACCESS_RES:
- /* lwarx, ldarx or srwcx. */
- return -4;
- case ACCESS_CACHE:
- /* dcba, dcbt, dcbtst, dcbf, dcbi, dcbst, dcbz, or icbi */
- /* Should make the instruction do no-op.
- * As it already do no-op, it's quite easy :-)
- */
- ctx->raddr = eaddr;
- return 0;
- case ACCESS_EXT:
- /* eciwx or ecowx */
- return -4;
- default:
- qemu_log_mask(CPU_LOG_MMU, "ERROR: instruction should not need "
- "address translation\n");
- return -4;
- }
- if ((rw == 1 || ctx->key != 1) && (rw == 0 || ctx->key != 0)) {
- ctx->raddr = eaddr;
- ret = 2;
- } else {
- ret = -2;
- }
- }
-
- return ret;
-}
-
-/* Generic TLB check function for embedded PowerPC implementations */
-static int ppcemb_tlb_check(CPUPPCState *env, ppcemb_tlb_t *tlb,
- hwaddr *raddrp,
- target_ulong address, uint32_t pid, int ext,
- int i)
-{
- target_ulong mask;
-
- /* Check valid flag */
- if (!(tlb->prot & PAGE_VALID)) {
- return -1;
- }
- mask = ~(tlb->size - 1);
- LOG_SWTLB("%s: TLB %d address " TARGET_FMT_lx " PID %u <=> " TARGET_FMT_lx
- " " TARGET_FMT_lx " %u %x\n", __func__, i, address, pid, tlb->EPN,
- mask, (uint32_t)tlb->PID, tlb->prot);
- /* Check PID */
- if (tlb->PID != 0 && tlb->PID != pid) {
- return -1;
- }
- /* Check effective address */
- if ((address & mask) != tlb->EPN) {
- return -1;
- }
- *raddrp = (tlb->RPN & mask) | (address & ~mask);
- if (ext) {
- /* Extend the physical address to 36 bits */
- *raddrp |= (uint64_t)(tlb->RPN & 0xF) << 32;
- }
-
- return 0;
-}
-
-/* Generic TLB search function for PowerPC embedded implementations */
-static int ppcemb_tlb_search(CPUPPCState *env, target_ulong address,
- uint32_t pid)
-{
- ppcemb_tlb_t *tlb;
- hwaddr raddr;
- int i, ret;
-
- /* Default return value is no match */
- ret = -1;
- for (i = 0; i < env->nb_tlb; i++) {
- tlb = &env->tlb.tlbe[i];
- if (ppcemb_tlb_check(env, tlb, &raddr, address, pid, 0, i) == 0) {
- ret = i;
- break;
- }
- }
-
- return ret;
-}
-
-/* Helpers specific to PowerPC 40x implementations */
-static inline void ppc4xx_tlb_invalidate_all(CPUPPCState *env)
-{
- PowerPCCPU *cpu = ppc_env_get_cpu(env);
- ppcemb_tlb_t *tlb;
- int i;
-
- for (i = 0; i < env->nb_tlb; i++) {
- tlb = &env->tlb.tlbe[i];
- tlb->prot &= ~PAGE_VALID;
- }
- tlb_flush(CPU(cpu), 1);
-}
-
-static int mmu40x_get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx,
- target_ulong address, int rw,
- int access_type)
-{
- ppcemb_tlb_t *tlb;
- hwaddr raddr;
- int i, ret, zsel, zpr, pr;
-
- ret = -1;
- raddr = (hwaddr)-1ULL;
- pr = msr_pr;
- for (i = 0; i < env->nb_tlb; i++) {
- tlb = &env->tlb.tlbe[i];
- if (ppcemb_tlb_check(env, tlb, &raddr, address,
- env->spr[SPR_40x_PID], 0, i) < 0) {
- continue;
- }
- zsel = (tlb->attr >> 4) & 0xF;
- zpr = (env->spr[SPR_40x_ZPR] >> (30 - (2 * zsel))) & 0x3;
- LOG_SWTLB("%s: TLB %d zsel %d zpr %d rw %d attr %08x\n",
- __func__, i, zsel, zpr, rw, tlb->attr);
- /* Check execute enable bit */
- switch (zpr) {
- case 0x2:
- if (pr != 0) {
- goto check_perms;
- }
- /* No break here */
- case 0x3:
- /* All accesses granted */
- ctx->prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
- ret = 0;
- break;
- case 0x0:
- if (pr != 0) {
- /* Raise Zone protection fault. */
- env->spr[SPR_40x_ESR] = 1 << 22;
- ctx->prot = 0;
- ret = -2;
- break;
- }
- /* No break here */
- case 0x1:
- check_perms:
- /* Check from TLB entry */
- ctx->prot = tlb->prot;
- ret = check_prot(ctx->prot, rw, access_type);
- if (ret == -2) {
- env->spr[SPR_40x_ESR] = 0;
- }
- break;
- }
- if (ret >= 0) {
- ctx->raddr = raddr;
- LOG_SWTLB("%s: access granted " TARGET_FMT_lx " => " TARGET_FMT_plx
- " %d %d\n", __func__, address, ctx->raddr, ctx->prot,
- ret);
- return 0;
- }
- }
- LOG_SWTLB("%s: access refused " TARGET_FMT_lx " => " TARGET_FMT_plx
- " %d %d\n", __func__, address, raddr, ctx->prot, ret);
-
- return ret;
-}
-
-void store_40x_sler(CPUPPCState *env, uint32_t val)
-{
- PowerPCCPU *cpu = ppc_env_get_cpu(env);
-
- /* XXX: TO BE FIXED */
- if (val != 0x00000000) {
- cpu_abort(CPU(cpu), "Little-endian regions are not supported by now\n");
- }
- env->spr[SPR_405_SLER] = val;
-}
-
-static inline int mmubooke_check_tlb(CPUPPCState *env, ppcemb_tlb_t *tlb,
- hwaddr *raddr, int *prot,
- target_ulong address, int rw,
- int access_type, int i)
-{
- int ret, prot2;
-
- if (ppcemb_tlb_check(env, tlb, raddr, address,
- env->spr[SPR_BOOKE_PID],
- !env->nb_pids, i) >= 0) {
- goto found_tlb;
- }
-
- if (env->spr[SPR_BOOKE_PID1] &&
- ppcemb_tlb_check(env, tlb, raddr, address,
- env->spr[SPR_BOOKE_PID1], 0, i) >= 0) {
- goto found_tlb;
- }
-
- if (env->spr[SPR_BOOKE_PID2] &&
- ppcemb_tlb_check(env, tlb, raddr, address,
- env->spr[SPR_BOOKE_PID2], 0, i) >= 0) {
- goto found_tlb;
- }
-
- LOG_SWTLB("%s: TLB entry not found\n", __func__);
- return -1;
-
-found_tlb:
-
- if (msr_pr != 0) {
- prot2 = tlb->prot & 0xF;
- } else {
- prot2 = (tlb->prot >> 4) & 0xF;
- }
-
- /* Check the address space */
- if (access_type == ACCESS_CODE) {
- if (msr_ir != (tlb->attr & 1)) {
- LOG_SWTLB("%s: AS doesn't match\n", __func__);
- return -1;
- }
-
- *prot = prot2;
- if (prot2 & PAGE_EXEC) {
- LOG_SWTLB("%s: good TLB!\n", __func__);
- return 0;
- }
-
- LOG_SWTLB("%s: no PAGE_EXEC: %x\n", __func__, prot2);
- ret = -3;
- } else {
- if (msr_dr != (tlb->attr & 1)) {
- LOG_SWTLB("%s: AS doesn't match\n", __func__);
- return -1;
- }
-
- *prot = prot2;
- if ((!rw && prot2 & PAGE_READ) || (rw && (prot2 & PAGE_WRITE))) {
- LOG_SWTLB("%s: found TLB!\n", __func__);
- return 0;
- }
-
- LOG_SWTLB("%s: PAGE_READ/WRITE doesn't match: %x\n", __func__, prot2);
- ret = -2;
- }
-
- return ret;
-}
-
-static int mmubooke_get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx,
- target_ulong address, int rw,
- int access_type)
-{
- ppcemb_tlb_t *tlb;
- hwaddr raddr;
- int i, ret;
-
- ret = -1;
- raddr = (hwaddr)-1ULL;
- for (i = 0; i < env->nb_tlb; i++) {
- tlb = &env->tlb.tlbe[i];
- ret = mmubooke_check_tlb(env, tlb, &raddr, &ctx->prot, address, rw,
- access_type, i);
- if (!ret) {
- break;
- }
- }
-
- if (ret >= 0) {
- ctx->raddr = raddr;
- LOG_SWTLB("%s: access granted " TARGET_FMT_lx " => " TARGET_FMT_plx
- " %d %d\n", __func__, address, ctx->raddr, ctx->prot,
- ret);
- } else {
- LOG_SWTLB("%s: access refused " TARGET_FMT_lx " => " TARGET_FMT_plx
- " %d %d\n", __func__, address, raddr, ctx->prot, ret);
- }
-
- return ret;
-}
-
-static void booke206_flush_tlb(CPUPPCState *env, int flags,
- const int check_iprot)
-{
- PowerPCCPU *cpu = ppc_env_get_cpu(env);
- int tlb_size;
- int i, j;
- ppcmas_tlb_t *tlb = env->tlb.tlbm;
-
- for (i = 0; i < BOOKE206_MAX_TLBN; i++) {
- if (flags & (1 << i)) {
- tlb_size = booke206_tlb_size(env, i);
- for (j = 0; j < tlb_size; j++) {
- if (!check_iprot || !(tlb[j].mas1 & MAS1_IPROT)) {
- tlb[j].mas1 &= ~MAS1_VALID;
- }
- }
- }
- tlb += booke206_tlb_size(env, i);
- }
-
- tlb_flush(CPU(cpu), 1);
-}
-
-static hwaddr booke206_tlb_to_page_size(CPUPPCState *env,
- ppcmas_tlb_t *tlb)
-{
- int tlbm_size;
-
- tlbm_size = (tlb->mas1 & MAS1_TSIZE_MASK) >> MAS1_TSIZE_SHIFT;
-
- return 1024ULL << tlbm_size;
-}
-
-/* TLB check function for MAS based SoftTLBs */
-static int ppcmas_tlb_check(CPUPPCState *env, ppcmas_tlb_t *tlb,
- hwaddr *raddrp, target_ulong address,
- uint32_t pid)
-{
- hwaddr mask;
- uint32_t tlb_pid;
-
- if (!msr_cm) {
- /* In 32bit mode we can only address 32bit EAs */
- address = (uint32_t)address;
- }
-
- /* Check valid flag */
- if (!(tlb->mas1 & MAS1_VALID)) {
- return -1;
- }
-
- mask = ~(booke206_tlb_to_page_size(env, tlb) - 1);
- LOG_SWTLB("%s: TLB ADDR=0x" TARGET_FMT_lx " PID=0x%x MAS1=0x%x MAS2=0x%"
- PRIx64 " mask=0x" TARGET_FMT_lx " MAS7_3=0x%" PRIx64 " MAS8=%x\n",
- __func__, address, pid, tlb->mas1, tlb->mas2, mask, tlb->mas7_3,
- tlb->mas8);
-
- /* Check PID */
- tlb_pid = (tlb->mas1 & MAS1_TID_MASK) >> MAS1_TID_SHIFT;
- if (tlb_pid != 0 && tlb_pid != pid) {
- return -1;
- }
-
- /* Check effective address */
- if ((address & mask) != (tlb->mas2 & MAS2_EPN_MASK)) {
- return -1;
- }
-
- if (raddrp) {
- *raddrp = (tlb->mas7_3 & mask) | (address & ~mask);
- }
-
- return 0;
-}
-
-static int mmubooke206_check_tlb(CPUPPCState *env, ppcmas_tlb_t *tlb,
- hwaddr *raddr, int *prot,
- target_ulong address, int rw,
- int access_type)
-{
- int ret;
- int prot2 = 0;
-
- if (ppcmas_tlb_check(env, tlb, raddr, address,
- env->spr[SPR_BOOKE_PID]) >= 0) {
- goto found_tlb;
- }
-
- if (env->spr[SPR_BOOKE_PID1] &&
- ppcmas_tlb_check(env, tlb, raddr, address,
- env->spr[SPR_BOOKE_PID1]) >= 0) {
- goto found_tlb;
- }
-
- if (env->spr[SPR_BOOKE_PID2] &&
- ppcmas_tlb_check(env, tlb, raddr, address,
- env->spr[SPR_BOOKE_PID2]) >= 0) {
- goto found_tlb;
- }
-
- LOG_SWTLB("%s: TLB entry not found\n", __func__);
- return -1;
-
-found_tlb:
-
- if (msr_pr != 0) {
- if (tlb->mas7_3 & MAS3_UR) {
- prot2 |= PAGE_READ;
- }
- if (tlb->mas7_3 & MAS3_UW) {
- prot2 |= PAGE_WRITE;
- }
- if (tlb->mas7_3 & MAS3_UX) {
- prot2 |= PAGE_EXEC;
- }
- } else {
- if (tlb->mas7_3 & MAS3_SR) {
- prot2 |= PAGE_READ;
- }
- if (tlb->mas7_3 & MAS3_SW) {
- prot2 |= PAGE_WRITE;
- }
- if (tlb->mas7_3 & MAS3_SX) {
- prot2 |= PAGE_EXEC;
- }
- }
-
- /* Check the address space and permissions */
- if (access_type == ACCESS_CODE) {
- if (msr_ir != ((tlb->mas1 & MAS1_TS) >> MAS1_TS_SHIFT)) {
- LOG_SWTLB("%s: AS doesn't match\n", __func__);
- return -1;
- }
-
- *prot = prot2;
- if (prot2 & PAGE_EXEC) {
- LOG_SWTLB("%s: good TLB!\n", __func__);
- return 0;
- }
-
- LOG_SWTLB("%s: no PAGE_EXEC: %x\n", __func__, prot2);
- ret = -3;
- } else {
- if (msr_dr != ((tlb->mas1 & MAS1_TS) >> MAS1_TS_SHIFT)) {
- LOG_SWTLB("%s: AS doesn't match\n", __func__);
- return -1;
- }
-
- *prot = prot2;
- if ((!rw && prot2 & PAGE_READ) || (rw && (prot2 & PAGE_WRITE))) {
- LOG_SWTLB("%s: found TLB!\n", __func__);
- return 0;
- }
-
- LOG_SWTLB("%s: PAGE_READ/WRITE doesn't match: %x\n", __func__, prot2);
- ret = -2;
- }
-
- return ret;
-}
-
-static int mmubooke206_get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx,
- target_ulong address, int rw,
- int access_type)
-{
- ppcmas_tlb_t *tlb;
- hwaddr raddr;
- int i, j, ret;
-
- ret = -1;
- raddr = (hwaddr)-1ULL;
-
- for (i = 0; i < BOOKE206_MAX_TLBN; i++) {
- int ways = booke206_tlb_ways(env, i);
-
- for (j = 0; j < ways; j++) {
- tlb = booke206_get_tlbm(env, i, address, j);
- if (!tlb) {
- continue;
- }
- ret = mmubooke206_check_tlb(env, tlb, &raddr, &ctx->prot, address,
- rw, access_type);
- if (ret != -1) {
- goto found_tlb;
- }
- }
- }
-
-found_tlb:
-
- if (ret >= 0) {
- ctx->raddr = raddr;
- LOG_SWTLB("%s: access granted " TARGET_FMT_lx " => " TARGET_FMT_plx
- " %d %d\n", __func__, address, ctx->raddr, ctx->prot,
- ret);
- } else {
- LOG_SWTLB("%s: access refused " TARGET_FMT_lx " => " TARGET_FMT_plx
- " %d %d\n", __func__, address, raddr, ctx->prot, ret);
- }
-
- return ret;
-}
-
-static const char *book3e_tsize_to_str[32] = {
- "1K", "2K", "4K", "8K", "16K", "32K", "64K", "128K", "256K", "512K",
- "1M", "2M", "4M", "8M", "16M", "32M", "64M", "128M", "256M", "512M",
- "1G", "2G", "4G", "8G", "16G", "32G", "64G", "128G", "256G", "512G",
- "1T", "2T"
-};
-
-static void mmubooke_dump_mmu(FILE *f, fprintf_function cpu_fprintf,
- CPUPPCState *env)
-{
- ppcemb_tlb_t *entry;
- int i;
-
- if (kvm_enabled() && !env->kvm_sw_tlb) {
- cpu_fprintf(f, "Cannot access KVM TLB\n");
- return;
- }
-
- cpu_fprintf(f, "\nTLB:\n");
- cpu_fprintf(f, "Effective Physical Size PID Prot "
- "Attr\n");
-
- entry = &env->tlb.tlbe[0];
- for (i = 0; i < env->nb_tlb; i++, entry++) {
- hwaddr ea, pa;
- target_ulong mask;
- uint64_t size = (uint64_t)entry->size;
- char size_buf[20];
-
- /* Check valid flag */
- if (!(entry->prot & PAGE_VALID)) {
- continue;
- }
-
- mask = ~(entry->size - 1);
- ea = entry->EPN & mask;
- pa = entry->RPN & mask;
- /* Extend the physical address to 36 bits */
- pa |= (hwaddr)(entry->RPN & 0xF) << 32;
- size /= 1024;
- if (size >= 1024) {
- snprintf(size_buf, sizeof(size_buf), "%3" PRId64 "M", size / 1024);
- } else {
- snprintf(size_buf, sizeof(size_buf), "%3" PRId64 "k", size);
- }
- cpu_fprintf(f, "0x%016" PRIx64 " 0x%016" PRIx64 " %s %-5u %08x %08x\n",
- (uint64_t)ea, (uint64_t)pa, size_buf, (uint32_t)entry->PID,
- entry->prot, entry->attr);
- }
-
-}
-
-static void mmubooke206_dump_one_tlb(FILE *f, fprintf_function cpu_fprintf,
- CPUPPCState *env, int tlbn, int offset,
- int tlbsize)
-{
- ppcmas_tlb_t *entry;
- int i;
-
- cpu_fprintf(f, "\nTLB%d:\n", tlbn);
- cpu_fprintf(f, "Effective Physical Size TID TS SRWX"
- " URWX WIMGE U0123\n");
-
- entry = &env->tlb.tlbm[offset];
- for (i = 0; i < tlbsize; i++, entry++) {
- hwaddr ea, pa, size;
- int tsize;
-
- if (!(entry->mas1 & MAS1_VALID)) {
- continue;
- }
-
- tsize = (entry->mas1 & MAS1_TSIZE_MASK) >> MAS1_TSIZE_SHIFT;
- size = 1024ULL << tsize;
- ea = entry->mas2 & ~(size - 1);
- pa = entry->mas7_3 & ~(size - 1);
-
- cpu_fprintf(f, "0x%016" PRIx64 " 0x%016" PRIx64 " %4s %-5u %1u S%c%c%c"
- "U%c%c%c %c%c%c%c%c U%c%c%c%c\n",
- (uint64_t)ea, (uint64_t)pa,
- book3e_tsize_to_str[tsize],
- (entry->mas1 & MAS1_TID_MASK) >> MAS1_TID_SHIFT,
- (entry->mas1 & MAS1_TS) >> MAS1_TS_SHIFT,
- entry->mas7_3 & MAS3_SR ? 'R' : '-',
- entry->mas7_3 & MAS3_SW ? 'W' : '-',
- entry->mas7_3 & MAS3_SX ? 'X' : '-',
- entry->mas7_3 & MAS3_UR ? 'R' : '-',
- entry->mas7_3 & MAS3_UW ? 'W' : '-',
- entry->mas7_3 & MAS3_UX ? 'X' : '-',
- entry->mas2 & MAS2_W ? 'W' : '-',
- entry->mas2 & MAS2_I ? 'I' : '-',
- entry->mas2 & MAS2_M ? 'M' : '-',
- entry->mas2 & MAS2_G ? 'G' : '-',
- entry->mas2 & MAS2_E ? 'E' : '-',
- entry->mas7_3 & MAS3_U0 ? '0' : '-',
- entry->mas7_3 & MAS3_U1 ? '1' : '-',
- entry->mas7_3 & MAS3_U2 ? '2' : '-',
- entry->mas7_3 & MAS3_U3 ? '3' : '-');
- }
-}
-
-static void mmubooke206_dump_mmu(FILE *f, fprintf_function cpu_fprintf,
- CPUPPCState *env)
-{
- int offset = 0;
- int i;
-
- if (kvm_enabled() && !env->kvm_sw_tlb) {
- cpu_fprintf(f, "Cannot access KVM TLB\n");
- return;
- }
-
- for (i = 0; i < BOOKE206_MAX_TLBN; i++) {
- int size = booke206_tlb_size(env, i);
-
- if (size == 0) {
- continue;
- }
-
- mmubooke206_dump_one_tlb(f, cpu_fprintf, env, i, offset, size);
- offset += size;
- }
-}
-
-static void mmu6xx_dump_BATs(FILE *f, fprintf_function cpu_fprintf,
- CPUPPCState *env, int type)
-{
- target_ulong *BATlt, *BATut, *BATu, *BATl;
- target_ulong BEPIl, BEPIu, bl;
- int i;
-
- switch (type) {
- case ACCESS_CODE:
- BATlt = env->IBAT[1];
- BATut = env->IBAT[0];
- break;
- default:
- BATlt = env->DBAT[1];
- BATut = env->DBAT[0];
- break;
- }
-
- for (i = 0; i < env->nb_BATs; i++) {
- BATu = &BATut[i];
- BATl = &BATlt[i];
- BEPIu = *BATu & 0xF0000000;
- BEPIl = *BATu & 0x0FFE0000;
- bl = (*BATu & 0x00001FFC) << 15;
- cpu_fprintf(f, "%s BAT%d BATu " TARGET_FMT_lx
- " BATl " TARGET_FMT_lx "\n\t" TARGET_FMT_lx " "
- TARGET_FMT_lx " " TARGET_FMT_lx "\n",
- type == ACCESS_CODE ? "code" : "data", i,
- *BATu, *BATl, BEPIu, BEPIl, bl);
- }
-}
-
-static void mmu6xx_dump_mmu(FILE *f, fprintf_function cpu_fprintf,
- CPUPPCState *env)
-{
- ppc6xx_tlb_t *tlb;
- target_ulong sr;
- int type, way, entry, i;
-
- cpu_fprintf(f, "HTAB base = 0x%"HWADDR_PRIx"\n", env->htab_base);
- cpu_fprintf(f, "HTAB mask = 0x%"HWADDR_PRIx"\n", env->htab_mask);
-
- cpu_fprintf(f, "\nSegment registers:\n");
- for (i = 0; i < 32; i++) {
- sr = env->sr[i];
- if (sr & 0x80000000) {
- cpu_fprintf(f, "%02d T=%d Ks=%d Kp=%d BUID=0x%03x "
- "CNTLR_SPEC=0x%05x\n", i,
- sr & 0x80000000 ? 1 : 0, sr & 0x40000000 ? 1 : 0,
- sr & 0x20000000 ? 1 : 0, (uint32_t)((sr >> 20) & 0x1FF),
- (uint32_t)(sr & 0xFFFFF));
- } else {
- cpu_fprintf(f, "%02d T=%d Ks=%d Kp=%d N=%d VSID=0x%06x\n", i,
- sr & 0x80000000 ? 1 : 0, sr & 0x40000000 ? 1 : 0,
- sr & 0x20000000 ? 1 : 0, sr & 0x10000000 ? 1 : 0,
- (uint32_t)(sr & 0x00FFFFFF));
- }
- }
-
- cpu_fprintf(f, "\nBATs:\n");
- mmu6xx_dump_BATs(f, cpu_fprintf, env, ACCESS_INT);
- mmu6xx_dump_BATs(f, cpu_fprintf, env, ACCESS_CODE);
-
- if (env->id_tlbs != 1) {
- cpu_fprintf(f, "ERROR: 6xx MMU should have separated TLB"
- " for code and data\n");
- }
-
- cpu_fprintf(f, "\nTLBs [EPN EPN + SIZE]\n");
-
- for (type = 0; type < 2; type++) {
- for (way = 0; way < env->nb_ways; way++) {
- for (entry = env->nb_tlb * type + env->tlb_per_way * way;
- entry < (env->nb_tlb * type + env->tlb_per_way * (way + 1));
- entry++) {
-
- tlb = &env->tlb.tlb6[entry];
- cpu_fprintf(f, "%s TLB %02d/%02d way:%d %s ["
- TARGET_FMT_lx " " TARGET_FMT_lx "]\n",
- type ? "code" : "data", entry % env->nb_tlb,
- env->nb_tlb, way,
- pte_is_valid(tlb->pte0) ? "valid" : "inval",
- tlb->EPN, tlb->EPN + TARGET_PAGE_SIZE);
- }
- }
- }
-}
-
-void dump_mmu(FILE *f, fprintf_function cpu_fprintf, CPUPPCState *env)
-{
- switch (env->mmu_model) {
- case POWERPC_MMU_BOOKE:
- mmubooke_dump_mmu(f, cpu_fprintf, env);
- break;
- case POWERPC_MMU_BOOKE206:
- mmubooke206_dump_mmu(f, cpu_fprintf, env);
- break;
- case POWERPC_MMU_SOFT_6xx:
- case POWERPC_MMU_SOFT_74xx:
- mmu6xx_dump_mmu(f, cpu_fprintf, env);
- break;
-#if defined(TARGET_PPC64)
- case POWERPC_MMU_64B:
- case POWERPC_MMU_2_03:
- case POWERPC_MMU_2_06:
- case POWERPC_MMU_2_06a:
- case POWERPC_MMU_2_07:
- case POWERPC_MMU_2_07a:
- dump_slb(f, cpu_fprintf, ppc_env_get_cpu(env));
- break;
-#endif
- default:
- qemu_log_mask(LOG_UNIMP, "%s: unimplemented\n", __func__);
- }
-}
-
-static inline int check_physical(CPUPPCState *env, mmu_ctx_t *ctx,
- target_ulong eaddr, int rw)
-{
- int in_plb, ret;
-
- ctx->raddr = eaddr;
- ctx->prot = PAGE_READ | PAGE_EXEC;
- ret = 0;
- switch (env->mmu_model) {
- case POWERPC_MMU_SOFT_6xx:
- case POWERPC_MMU_SOFT_74xx:
- case POWERPC_MMU_SOFT_4xx:
- case POWERPC_MMU_REAL:
- case POWERPC_MMU_BOOKE:
- ctx->prot |= PAGE_WRITE;
- break;
-
- case POWERPC_MMU_SOFT_4xx_Z:
- if (unlikely(msr_pe != 0)) {
- /* 403 family add some particular protections,
- * using PBL/PBU registers for accesses with no translation.
- */
- in_plb =
- /* Check PLB validity */
- (env->pb[0] < env->pb[1] &&
- /* and address in plb area */
- eaddr >= env->pb[0] && eaddr < env->pb[1]) ||
- (env->pb[2] < env->pb[3] &&
- eaddr >= env->pb[2] && eaddr < env->pb[3]) ? 1 : 0;
- if (in_plb ^ msr_px) {
- /* Access in protected area */
- if (rw == 1) {
- /* Access is not allowed */
- ret = -2;
- }
- } else {
- /* Read-write access is allowed */
- ctx->prot |= PAGE_WRITE;
- }
- }
- break;
-
- default:
- /* Caller's checks mean we should never get here for other models */
- abort();
- return -1;
- }
-
- return ret;
-}
-
-static int get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx,
- target_ulong eaddr, int rw, int access_type)
-{
- PowerPCCPU *cpu = ppc_env_get_cpu(env);
- int ret = -1;
- bool real_mode = (access_type == ACCESS_CODE && msr_ir == 0)
- || (access_type != ACCESS_CODE && msr_dr == 0);
-
-#if 0
- qemu_log("%s\n", __func__);
-#endif
-
- switch (env->mmu_model) {
- case POWERPC_MMU_SOFT_6xx:
- case POWERPC_MMU_SOFT_74xx:
- if (real_mode) {
- ret = check_physical(env, ctx, eaddr, rw);
- } else {
- /* Try to find a BAT */
- if (env->nb_BATs != 0) {
- ret = get_bat_6xx_tlb(env, ctx, eaddr, rw, access_type);
- }
- if (ret < 0) {
- /* We didn't match any BAT entry or don't have BATs */
- ret = get_segment_6xx_tlb(env, ctx, eaddr, rw, access_type);
- }
- }
- break;
-
- case POWERPC_MMU_SOFT_4xx:
- case POWERPC_MMU_SOFT_4xx_Z:
- if (real_mode) {
- ret = check_physical(env, ctx, eaddr, rw);
- } else {
- ret = mmu40x_get_physical_address(env, ctx, eaddr,
- rw, access_type);
- }
- break;
- case POWERPC_MMU_BOOKE:
- ret = mmubooke_get_physical_address(env, ctx, eaddr,
- rw, access_type);
- break;
- case POWERPC_MMU_BOOKE206:
- ret = mmubooke206_get_physical_address(env, ctx, eaddr, rw,
- access_type);
- break;
- case POWERPC_MMU_MPC8xx:
- /* XXX: TODO */
- cpu_abort(CPU(cpu), "MPC8xx MMU model is not implemented\n");
- break;
- case POWERPC_MMU_REAL:
- if (real_mode) {
- ret = check_physical(env, ctx, eaddr, rw);
- } else {
- cpu_abort(CPU(cpu), "PowerPC in real mode do not do any translation\n");
- }
- return -1;
- default:
- cpu_abort(CPU(cpu), "Unknown or invalid MMU model\n");
- return -1;
- }
-#if 0
- qemu_log("%s address " TARGET_FMT_lx " => %d " TARGET_FMT_plx "\n",
- __func__, eaddr, ret, ctx->raddr);
-#endif
-
- return ret;
-}
-
-hwaddr ppc_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
-{
- PowerPCCPU *cpu = POWERPC_CPU(cs);
- CPUPPCState *env = &cpu->env;
- mmu_ctx_t ctx;
-
- switch (env->mmu_model) {
-#if defined(TARGET_PPC64)
- case POWERPC_MMU_64B:
- case POWERPC_MMU_2_03:
- case POWERPC_MMU_2_06:
- case POWERPC_MMU_2_06a:
- case POWERPC_MMU_2_07:
- case POWERPC_MMU_2_07a:
- return ppc_hash64_get_phys_page_debug(cpu, addr);
-#endif
-
- case POWERPC_MMU_32B:
- case POWERPC_MMU_601:
- return ppc_hash32_get_phys_page_debug(cpu, addr);
-
- default:
- ;
- }
-
- if (unlikely(get_physical_address(env, &ctx, addr, 0, ACCESS_INT) != 0)) {
-
- /* Some MMUs have separate TLBs for code and data. If we only try an
- * ACCESS_INT, we may not be able to read instructions mapped by code
- * TLBs, so we also try a ACCESS_CODE.
- */
- if (unlikely(get_physical_address(env, &ctx, addr, 0,
- ACCESS_CODE) != 0)) {
- return -1;
- }
- }
-
- return ctx.raddr & TARGET_PAGE_MASK;
-}
-
-static void booke206_update_mas_tlb_miss(CPUPPCState *env, target_ulong address,
- int rw)
-{
- env->spr[SPR_BOOKE_MAS0] = env->spr[SPR_BOOKE_MAS4] & MAS4_TLBSELD_MASK;
- env->spr[SPR_BOOKE_MAS1] = env->spr[SPR_BOOKE_MAS4] & MAS4_TSIZED_MASK;
- env->spr[SPR_BOOKE_MAS2] = env->spr[SPR_BOOKE_MAS4] & MAS4_WIMGED_MASK;
- env->spr[SPR_BOOKE_MAS3] = 0;
- env->spr[SPR_BOOKE_MAS6] = 0;
- env->spr[SPR_BOOKE_MAS7] = 0;
-
- /* AS */
- if (((rw == 2) && msr_ir) || ((rw != 2) && msr_dr)) {
- env->spr[SPR_BOOKE_MAS1] |= MAS1_TS;
- env->spr[SPR_BOOKE_MAS6] |= MAS6_SAS;
- }
-
- env->spr[SPR_BOOKE_MAS1] |= MAS1_VALID;
- env->spr[SPR_BOOKE_MAS2] |= address & MAS2_EPN_MASK;
-
- switch (env->spr[SPR_BOOKE_MAS4] & MAS4_TIDSELD_PIDZ) {
- case MAS4_TIDSELD_PID0:
- env->spr[SPR_BOOKE_MAS1] |= env->spr[SPR_BOOKE_PID] << MAS1_TID_SHIFT;
- break;
- case MAS4_TIDSELD_PID1:
- env->spr[SPR_BOOKE_MAS1] |= env->spr[SPR_BOOKE_PID1] << MAS1_TID_SHIFT;
- break;
- case MAS4_TIDSELD_PID2:
- env->spr[SPR_BOOKE_MAS1] |= env->spr[SPR_BOOKE_PID2] << MAS1_TID_SHIFT;
- break;
- }
-
- env->spr[SPR_BOOKE_MAS6] |= env->spr[SPR_BOOKE_PID] << 16;
-
- /* next victim logic */
- env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_ESEL_SHIFT;
- env->last_way++;
- env->last_way &= booke206_tlb_ways(env, 0) - 1;
- env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_NV_SHIFT;
-}
-
-/* Perform address translation */
-static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address,
- int rw, int mmu_idx)
-{
- CPUState *cs = CPU(ppc_env_get_cpu(env));
- PowerPCCPU *cpu = POWERPC_CPU(cs);
- mmu_ctx_t ctx;
- int access_type;
- int ret = 0;
-
- if (rw == 2) {
- /* code access */
- rw = 0;
- access_type = ACCESS_CODE;
- } else {
- /* data access */
- access_type = env->access_type;
- }
- ret = get_physical_address(env, &ctx, address, rw, access_type);
- if (ret == 0) {
- tlb_set_page(cs, address & TARGET_PAGE_MASK,
- ctx.raddr & TARGET_PAGE_MASK, ctx.prot,
- mmu_idx, TARGET_PAGE_SIZE);
- ret = 0;
- } else if (ret < 0) {
- LOG_MMU_STATE(cs);
- if (access_type == ACCESS_CODE) {
- switch (ret) {
- case -1:
- /* No matches in page tables or TLB */
- switch (env->mmu_model) {
- case POWERPC_MMU_SOFT_6xx:
- cs->exception_index = POWERPC_EXCP_IFTLB;
- env->error_code = 1 << 18;
- env->spr[SPR_IMISS] = address;
- env->spr[SPR_ICMP] = 0x80000000 | ctx.ptem;
- goto tlb_miss;
- case POWERPC_MMU_SOFT_74xx:
- cs->exception_index = POWERPC_EXCP_IFTLB;
- goto tlb_miss_74xx;
- case POWERPC_MMU_SOFT_4xx:
- case POWERPC_MMU_SOFT_4xx_Z:
- cs->exception_index = POWERPC_EXCP_ITLB;
- env->error_code = 0;
- env->spr[SPR_40x_DEAR] = address;
- env->spr[SPR_40x_ESR] = 0x00000000;
- break;
- case POWERPC_MMU_BOOKE206:
- booke206_update_mas_tlb_miss(env, address, rw);
- /* fall through */
- case POWERPC_MMU_BOOKE:
- cs->exception_index = POWERPC_EXCP_ITLB;
- env->error_code = 0;
- env->spr[SPR_BOOKE_DEAR] = address;
- return -1;
- case POWERPC_MMU_MPC8xx:
- /* XXX: TODO */
- cpu_abort(cs, "MPC8xx MMU model is not implemented\n");
- break;
- case POWERPC_MMU_REAL:
- cpu_abort(cs, "PowerPC in real mode should never raise "
- "any MMU exceptions\n");
- return -1;
- default:
- cpu_abort(cs, "Unknown or invalid MMU model\n");
- return -1;
- }
- break;
- case -2:
- /* Access rights violation */
- cs->exception_index = POWERPC_EXCP_ISI;
- env->error_code = 0x08000000;
- break;
- case -3:
- /* No execute protection violation */
- if ((env->mmu_model == POWERPC_MMU_BOOKE) ||
- (env->mmu_model == POWERPC_MMU_BOOKE206)) {
- env->spr[SPR_BOOKE_ESR] = 0x00000000;
- }
- cs->exception_index = POWERPC_EXCP_ISI;
- env->error_code = 0x10000000;
- break;
- case -4:
- /* Direct store exception */
- /* No code fetch is allowed in direct-store areas */
- cs->exception_index = POWERPC_EXCP_ISI;
- env->error_code = 0x10000000;
- break;
- }
- } else {
- switch (ret) {
- case -1:
- /* No matches in page tables or TLB */
- switch (env->mmu_model) {
- case POWERPC_MMU_SOFT_6xx:
- if (rw == 1) {
- cs->exception_index = POWERPC_EXCP_DSTLB;
- env->error_code = 1 << 16;
- } else {
- cs->exception_index = POWERPC_EXCP_DLTLB;
- env->error_code = 0;
- }
- env->spr[SPR_DMISS] = address;
- env->spr[SPR_DCMP] = 0x80000000 | ctx.ptem;
- tlb_miss:
- env->error_code |= ctx.key << 19;
- env->spr[SPR_HASH1] = env->htab_base +
- get_pteg_offset32(cpu, ctx.hash[0]);
- env->spr[SPR_HASH2] = env->htab_base +
- get_pteg_offset32(cpu, ctx.hash[1]);
- break;
- case POWERPC_MMU_SOFT_74xx:
- if (rw == 1) {
- cs->exception_index = POWERPC_EXCP_DSTLB;
- } else {
- cs->exception_index = POWERPC_EXCP_DLTLB;
- }
- tlb_miss_74xx:
- /* Implement LRU algorithm */
- env->error_code = ctx.key << 19;
- env->spr[SPR_TLBMISS] = (address & ~((target_ulong)0x3)) |
- ((env->last_way + 1) & (env->nb_ways - 1));
- env->spr[SPR_PTEHI] = 0x80000000 | ctx.ptem;
- break;
- case POWERPC_MMU_SOFT_4xx:
- case POWERPC_MMU_SOFT_4xx_Z:
- cs->exception_index = POWERPC_EXCP_DTLB;
- env->error_code = 0;
- env->spr[SPR_40x_DEAR] = address;
- if (rw) {
- env->spr[SPR_40x_ESR] = 0x00800000;
- } else {
- env->spr[SPR_40x_ESR] = 0x00000000;
- }
- break;
- case POWERPC_MMU_MPC8xx:
- /* XXX: TODO */
- cpu_abort(cs, "MPC8xx MMU model is not implemented\n");
- break;
- case POWERPC_MMU_BOOKE206:
- booke206_update_mas_tlb_miss(env, address, rw);
- /* fall through */
- case POWERPC_MMU_BOOKE:
- cs->exception_index = POWERPC_EXCP_DTLB;
- env->error_code = 0;
- env->spr[SPR_BOOKE_DEAR] = address;
- env->spr[SPR_BOOKE_ESR] = rw ? ESR_ST : 0;
- return -1;
- case POWERPC_MMU_REAL:
- cpu_abort(cs, "PowerPC in real mode should never raise "
- "any MMU exceptions\n");
- return -1;
- default:
- cpu_abort(cs, "Unknown or invalid MMU model\n");
- return -1;
- }
- break;
- case -2:
- /* Access rights violation */
- cs->exception_index = POWERPC_EXCP_DSI;
- env->error_code = 0;
- if (env->mmu_model == POWERPC_MMU_SOFT_4xx
- || env->mmu_model == POWERPC_MMU_SOFT_4xx_Z) {
- env->spr[SPR_40x_DEAR] = address;
- if (rw) {
- env->spr[SPR_40x_ESR] |= 0x00800000;
- }
- } else if ((env->mmu_model == POWERPC_MMU_BOOKE) ||
- (env->mmu_model == POWERPC_MMU_BOOKE206)) {
- env->spr[SPR_BOOKE_DEAR] = address;
- env->spr[SPR_BOOKE_ESR] = rw ? ESR_ST : 0;
- } else {
- env->spr[SPR_DAR] = address;
- if (rw == 1) {
- env->spr[SPR_DSISR] = 0x0A000000;
- } else {
- env->spr[SPR_DSISR] = 0x08000000;
- }
- }
- break;
- case -4:
- /* Direct store exception */
- switch (access_type) {
- case ACCESS_FLOAT:
- /* Floating point load/store */
- cs->exception_index = POWERPC_EXCP_ALIGN;
- env->error_code = POWERPC_EXCP_ALIGN_FP;
- env->spr[SPR_DAR] = address;
- break;
- case ACCESS_RES:
- /* lwarx, ldarx or stwcx. */
- cs->exception_index = POWERPC_EXCP_DSI;
- env->error_code = 0;
- env->spr[SPR_DAR] = address;
- if (rw == 1) {
- env->spr[SPR_DSISR] = 0x06000000;
- } else {
- env->spr[SPR_DSISR] = 0x04000000;
- }
- break;
- case ACCESS_EXT:
- /* eciwx or ecowx */
- cs->exception_index = POWERPC_EXCP_DSI;
- env->error_code = 0;
- env->spr[SPR_DAR] = address;
- if (rw == 1) {
- env->spr[SPR_DSISR] = 0x06100000;
- } else {
- env->spr[SPR_DSISR] = 0x04100000;
- }
- break;
- default:
- printf("DSI: invalid exception (%d)\n", ret);
- cs->exception_index = POWERPC_EXCP_PROGRAM;
- env->error_code =
- POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL;
- env->spr[SPR_DAR] = address;
- break;
- }
- break;
- }
- }
-#if 0
- printf("%s: set exception to %d %02x\n", __func__,
- cs->exception, env->error_code);
-#endif
- ret = 1;
- }
-
- return ret;
-}
-
-/*****************************************************************************/
-/* BATs management */
-#if !defined(FLUSH_ALL_TLBS)
-static inline void do_invalidate_BAT(CPUPPCState *env, target_ulong BATu,
- target_ulong mask)
-{
- CPUState *cs = CPU(ppc_env_get_cpu(env));
- target_ulong base, end, page;
-
- base = BATu & ~0x0001FFFF;
- end = base + mask + 0x00020000;
- LOG_BATS("Flush BAT from " TARGET_FMT_lx " to " TARGET_FMT_lx " ("
- TARGET_FMT_lx ")\n", base, end, mask);
- for (page = base; page != end; page += TARGET_PAGE_SIZE) {
- tlb_flush_page(cs, page);
- }
- LOG_BATS("Flush done\n");
-}
-#endif
-
-static inline void dump_store_bat(CPUPPCState *env, char ID, int ul, int nr,
- target_ulong value)
-{
- LOG_BATS("Set %cBAT%d%c to " TARGET_FMT_lx " (" TARGET_FMT_lx ")\n", ID,
- nr, ul == 0 ? 'u' : 'l', value, env->nip);
-}
-
-void helper_store_ibatu(CPUPPCState *env, uint32_t nr, target_ulong value)
-{
- target_ulong mask;
-
- dump_store_bat(env, 'I', 0, nr, value);
- if (env->IBAT[0][nr] != value) {
- mask = (value << 15) & 0x0FFE0000UL;
-#if !defined(FLUSH_ALL_TLBS)
- do_invalidate_BAT(env, env->IBAT[0][nr], mask);
-#endif
- /* When storing valid upper BAT, mask BEPI and BRPN
- * and invalidate all TLBs covered by this BAT
- */
- mask = (value << 15) & 0x0FFE0000UL;
- env->IBAT[0][nr] = (value & 0x00001FFFUL) |
- (value & ~0x0001FFFFUL & ~mask);
- env->IBAT[1][nr] = (env->IBAT[1][nr] & 0x0000007B) |
- (env->IBAT[1][nr] & ~0x0001FFFF & ~mask);
-#if !defined(FLUSH_ALL_TLBS)
- do_invalidate_BAT(env, env->IBAT[0][nr], mask);
-#else
- tlb_flush(env, 1);
-#endif
- }
-}
-
-void helper_store_ibatl(CPUPPCState *env, uint32_t nr, target_ulong value)
-{
- dump_store_bat(env, 'I', 1, nr, value);
- env->IBAT[1][nr] = value;
-}
-
-void helper_store_dbatu(CPUPPCState *env, uint32_t nr, target_ulong value)
-{
- target_ulong mask;
-
- dump_store_bat(env, 'D', 0, nr, value);
- if (env->DBAT[0][nr] != value) {
- /* When storing valid upper BAT, mask BEPI and BRPN
- * and invalidate all TLBs covered by this BAT
- */
- mask = (value << 15) & 0x0FFE0000UL;
-#if !defined(FLUSH_ALL_TLBS)
- do_invalidate_BAT(env, env->DBAT[0][nr], mask);
-#endif
- mask = (value << 15) & 0x0FFE0000UL;
- env->DBAT[0][nr] = (value & 0x00001FFFUL) |
- (value & ~0x0001FFFFUL & ~mask);
- env->DBAT[1][nr] = (env->DBAT[1][nr] & 0x0000007B) |
- (env->DBAT[1][nr] & ~0x0001FFFF & ~mask);
-#if !defined(FLUSH_ALL_TLBS)
- do_invalidate_BAT(env, env->DBAT[0][nr], mask);
-#else
- tlb_flush(env, 1);
-#endif
- }
-}
-
-void helper_store_dbatl(CPUPPCState *env, uint32_t nr, target_ulong value)
-{
- dump_store_bat(env, 'D', 1, nr, value);
- env->DBAT[1][nr] = value;
-}
-
-void helper_store_601_batu(CPUPPCState *env, uint32_t nr, target_ulong value)
-{
- target_ulong mask;
-#if defined(FLUSH_ALL_TLBS)
- int do_inval;
-#endif
-
- dump_store_bat(env, 'I', 0, nr, value);
- if (env->IBAT[0][nr] != value) {
-#if defined(FLUSH_ALL_TLBS)
- do_inval = 0;
-#endif
- mask = (env->IBAT[1][nr] << 17) & 0x0FFE0000UL;
- if (env->IBAT[1][nr] & 0x40) {
- /* Invalidate BAT only if it is valid */
-#if !defined(FLUSH_ALL_TLBS)
- do_invalidate_BAT(env, env->IBAT[0][nr], mask);
-#else
- do_inval = 1;
-#endif
- }
- /* When storing valid upper BAT, mask BEPI and BRPN
- * and invalidate all TLBs covered by this BAT
- */
- env->IBAT[0][nr] = (value & 0x00001FFFUL) |
- (value & ~0x0001FFFFUL & ~mask);
- env->DBAT[0][nr] = env->IBAT[0][nr];
- if (env->IBAT[1][nr] & 0x40) {
-#if !defined(FLUSH_ALL_TLBS)
- do_invalidate_BAT(env, env->IBAT[0][nr], mask);
-#else
- do_inval = 1;
-#endif
- }
-#if defined(FLUSH_ALL_TLBS)
- if (do_inval) {
- tlb_flush(env, 1);
- }
-#endif
- }
-}
-
-void helper_store_601_batl(CPUPPCState *env, uint32_t nr, target_ulong value)
-{
-#if !defined(FLUSH_ALL_TLBS)
- target_ulong mask;
-#else
- int do_inval;
-#endif
-
- dump_store_bat(env, 'I', 1, nr, value);
- if (env->IBAT[1][nr] != value) {
-#if defined(FLUSH_ALL_TLBS)
- do_inval = 0;
-#endif
- if (env->IBAT[1][nr] & 0x40) {
-#if !defined(FLUSH_ALL_TLBS)
- mask = (env->IBAT[1][nr] << 17) & 0x0FFE0000UL;
- do_invalidate_BAT(env, env->IBAT[0][nr], mask);
-#else
- do_inval = 1;
-#endif
- }
- if (value & 0x40) {
-#if !defined(FLUSH_ALL_TLBS)
- mask = (value << 17) & 0x0FFE0000UL;
- do_invalidate_BAT(env, env->IBAT[0][nr], mask);
-#else
- do_inval = 1;
-#endif
- }
- env->IBAT[1][nr] = value;
- env->DBAT[1][nr] = value;
-#if defined(FLUSH_ALL_TLBS)
- if (do_inval) {
- tlb_flush(env, 1);
- }
-#endif
- }
-}
-
-/*****************************************************************************/
-/* TLB management */
-void ppc_tlb_invalidate_all(CPUPPCState *env)
-{
- PowerPCCPU *cpu = ppc_env_get_cpu(env);
-
- switch (env->mmu_model) {
- case POWERPC_MMU_SOFT_6xx:
- case POWERPC_MMU_SOFT_74xx:
- ppc6xx_tlb_invalidate_all(env);
- break;
- case POWERPC_MMU_SOFT_4xx:
- case POWERPC_MMU_SOFT_4xx_Z:
- ppc4xx_tlb_invalidate_all(env);
- break;
- case POWERPC_MMU_REAL:
- cpu_abort(CPU(cpu), "No TLB for PowerPC 4xx in real mode\n");
- break;
- case POWERPC_MMU_MPC8xx:
- /* XXX: TODO */
- cpu_abort(CPU(cpu), "MPC8xx MMU model is not implemented\n");
- break;
- case POWERPC_MMU_BOOKE:
- tlb_flush(CPU(cpu), 1);
- break;
- case POWERPC_MMU_BOOKE206:
- booke206_flush_tlb(env, -1, 0);
- break;
- case POWERPC_MMU_32B:
- case POWERPC_MMU_601:
-#if defined(TARGET_PPC64)
- case POWERPC_MMU_64B:
- case POWERPC_MMU_2_03:
- case POWERPC_MMU_2_06:
- case POWERPC_MMU_2_06a:
- case POWERPC_MMU_2_07:
- case POWERPC_MMU_2_07a:
-#endif /* defined(TARGET_PPC64) */
- tlb_flush(CPU(cpu), 1);
- break;
- default:
- /* XXX: TODO */
- cpu_abort(CPU(cpu), "Unknown MMU model\n");
- break;
- }
-}
-
-void ppc_tlb_invalidate_one(CPUPPCState *env, target_ulong addr)
-{
-#if !defined(FLUSH_ALL_TLBS)
- PowerPCCPU *cpu = ppc_env_get_cpu(env);
- CPUState *cs;
-
- addr &= TARGET_PAGE_MASK;
- switch (env->mmu_model) {
- case POWERPC_MMU_SOFT_6xx:
- case POWERPC_MMU_SOFT_74xx:
- ppc6xx_tlb_invalidate_virt(env, addr, 0);
- if (env->id_tlbs == 1) {
- ppc6xx_tlb_invalidate_virt(env, addr, 1);
- }
- break;
- case POWERPC_MMU_32B:
- case POWERPC_MMU_601:
- /* tlbie invalidate TLBs for all segments */
- addr &= ~((target_ulong)-1ULL << 28);
- cs = CPU(cpu);
- /* XXX: this case should be optimized,
- * giving a mask to tlb_flush_page
- */
- tlb_flush_page(cs, addr | (0x0 << 28));
- tlb_flush_page(cs, addr | (0x1 << 28));
- tlb_flush_page(cs, addr | (0x2 << 28));
- tlb_flush_page(cs, addr | (0x3 << 28));
- tlb_flush_page(cs, addr | (0x4 << 28));
- tlb_flush_page(cs, addr | (0x5 << 28));
- tlb_flush_page(cs, addr | (0x6 << 28));
- tlb_flush_page(cs, addr | (0x7 << 28));
- tlb_flush_page(cs, addr | (0x8 << 28));
- tlb_flush_page(cs, addr | (0x9 << 28));
- tlb_flush_page(cs, addr | (0xA << 28));
- tlb_flush_page(cs, addr | (0xB << 28));
- tlb_flush_page(cs, addr | (0xC << 28));
- tlb_flush_page(cs, addr | (0xD << 28));
- tlb_flush_page(cs, addr | (0xE << 28));
- tlb_flush_page(cs, addr | (0xF << 28));
- break;
-#if defined(TARGET_PPC64)
- case POWERPC_MMU_64B:
- case POWERPC_MMU_2_03:
- case POWERPC_MMU_2_06:
- case POWERPC_MMU_2_06a:
- case POWERPC_MMU_2_07:
- case POWERPC_MMU_2_07a:
- /* tlbie invalidate TLBs for all segments */
- /* XXX: given the fact that there are too many segments to invalidate,
- * and we still don't have a tlb_flush_mask(env, n, mask) in QEMU,
- * we just invalidate all TLBs
- */
- tlb_flush(CPU(cpu), 1);
- break;
-#endif /* defined(TARGET_PPC64) */
- default:
- /* Should never reach here with other MMU models */
- assert(0);
- }
-#else
- ppc_tlb_invalidate_all(env);
-#endif
-}
-
-/*****************************************************************************/
-/* Special registers manipulation */
-void ppc_store_sdr1(CPUPPCState *env, target_ulong value)
-{
- qemu_log_mask(CPU_LOG_MMU, "%s: " TARGET_FMT_lx "\n", __func__, value);
- assert(!env->external_htab);
- env->spr[SPR_SDR1] = value;
-#if defined(TARGET_PPC64)
- if (env->mmu_model & POWERPC_MMU_64) {
- PowerPCCPU *cpu = ppc_env_get_cpu(env);
- Error *local_err = NULL;
-
- ppc_hash64_set_sdr1(cpu, value, &local_err);
- if (local_err) {
- error_report_err(local_err);
- error_free(local_err);
- }
- } else
-#endif /* defined(TARGET_PPC64) */
- {
- /* FIXME: Should check for valid HTABMASK values */
- env->htab_mask = ((value & SDR_32_HTABMASK) << 16) | 0xFFFF;
- env->htab_base = value & SDR_32_HTABORG;
- }
-}
-
-/* Segment registers load and store */
-target_ulong helper_load_sr(CPUPPCState *env, target_ulong sr_num)
-{
-#if defined(TARGET_PPC64)
- if (env->mmu_model & POWERPC_MMU_64) {
- /* XXX */
- return 0;
- }
-#endif
- return env->sr[sr_num];
-}
-
-void helper_store_sr(CPUPPCState *env, target_ulong srnum, target_ulong value)
-{
- PowerPCCPU *cpu = ppc_env_get_cpu(env);
-
- qemu_log_mask(CPU_LOG_MMU,
- "%s: reg=%d " TARGET_FMT_lx " " TARGET_FMT_lx "\n", __func__,
- (int)srnum, value, env->sr[srnum]);
-#if defined(TARGET_PPC64)
- if (env->mmu_model & POWERPC_MMU_64) {
- uint64_t esid, vsid;
-
- /* ESID = srnum */
- esid = ((uint64_t)(srnum & 0xf) << 28) | SLB_ESID_V;
-
- /* VSID = VSID */
- vsid = (value & 0xfffffff) << 12;
- /* flags = flags */
- vsid |= ((value >> 27) & 0xf) << 8;
-
- ppc_store_slb(cpu, srnum, esid, vsid);
- } else
-#endif
- if (env->sr[srnum] != value) {
- env->sr[srnum] = value;
-/* Invalidating 256MB of virtual memory in 4kB pages is way longer than
- flusing the whole TLB. */
-#if !defined(FLUSH_ALL_TLBS) && 0
- {
- target_ulong page, end;
- /* Invalidate 256 MB of virtual memory */
- page = (16 << 20) * srnum;
- end = page + (16 << 20);
- for (; page != end; page += TARGET_PAGE_SIZE) {
- tlb_flush_page(CPU(cpu), page);
- }
- }
-#else
- tlb_flush(CPU(cpu), 1);
-#endif
- }
-}
-
-/* TLB management */
-void helper_tlbia(CPUPPCState *env)
-{
- ppc_tlb_invalidate_all(env);
-}
-
-void helper_tlbie(CPUPPCState *env, target_ulong addr)
-{
- ppc_tlb_invalidate_one(env, addr);
-}
-
-void helper_tlbiva(CPUPPCState *env, target_ulong addr)
-{
- PowerPCCPU *cpu = ppc_env_get_cpu(env);
-
- /* tlbiva instruction only exists on BookE */
- assert(env->mmu_model == POWERPC_MMU_BOOKE);
- /* XXX: TODO */
- cpu_abort(CPU(cpu), "BookE MMU model is not implemented\n");
-}
-
-/* Software driven TLBs management */
-/* PowerPC 602/603 software TLB load instructions helpers */
-static void do_6xx_tlb(CPUPPCState *env, target_ulong new_EPN, int is_code)
-{
- target_ulong RPN, CMP, EPN;
- int way;
-
- RPN = env->spr[SPR_RPA];
- if (is_code) {
- CMP = env->spr[SPR_ICMP];
- EPN = env->spr[SPR_IMISS];
- } else {
- CMP = env->spr[SPR_DCMP];
- EPN = env->spr[SPR_DMISS];
- }
- way = (env->spr[SPR_SRR1] >> 17) & 1;
- (void)EPN; /* avoid a compiler warning */
- LOG_SWTLB("%s: EPN " TARGET_FMT_lx " " TARGET_FMT_lx " PTE0 " TARGET_FMT_lx
- " PTE1 " TARGET_FMT_lx " way %d\n", __func__, new_EPN, EPN, CMP,
- RPN, way);
- /* Store this TLB */
- ppc6xx_tlb_store(env, (uint32_t)(new_EPN & TARGET_PAGE_MASK),
- way, is_code, CMP, RPN);
-}
-
-void helper_6xx_tlbd(CPUPPCState *env, target_ulong EPN)
-{
- do_6xx_tlb(env, EPN, 0);
-}
-
-void helper_6xx_tlbi(CPUPPCState *env, target_ulong EPN)
-{
- do_6xx_tlb(env, EPN, 1);
-}
-
-/* PowerPC 74xx software TLB load instructions helpers */
-static void do_74xx_tlb(CPUPPCState *env, target_ulong new_EPN, int is_code)
-{
- target_ulong RPN, CMP, EPN;
- int way;
-
- RPN = env->spr[SPR_PTELO];
- CMP = env->spr[SPR_PTEHI];
- EPN = env->spr[SPR_TLBMISS] & ~0x3;
- way = env->spr[SPR_TLBMISS] & 0x3;
- (void)EPN; /* avoid a compiler warning */
- LOG_SWTLB("%s: EPN " TARGET_FMT_lx " " TARGET_FMT_lx " PTE0 " TARGET_FMT_lx
- " PTE1 " TARGET_FMT_lx " way %d\n", __func__, new_EPN, EPN, CMP,
- RPN, way);
- /* Store this TLB */
- ppc6xx_tlb_store(env, (uint32_t)(new_EPN & TARGET_PAGE_MASK),
- way, is_code, CMP, RPN);
-}
-
-void helper_74xx_tlbd(CPUPPCState *env, target_ulong EPN)
-{
- do_74xx_tlb(env, EPN, 0);
-}
-
-void helper_74xx_tlbi(CPUPPCState *env, target_ulong EPN)
-{
- do_74xx_tlb(env, EPN, 1);
-}
-
-/*****************************************************************************/
-/* PowerPC 601 specific instructions (POWER bridge) */
-
-target_ulong helper_rac(CPUPPCState *env, target_ulong addr)
-{
- mmu_ctx_t ctx;
- int nb_BATs;
- target_ulong ret = 0;
-
- /* We don't have to generate many instances of this instruction,
- * as rac is supervisor only.
- */
- /* XXX: FIX THIS: Pretend we have no BAT */
- nb_BATs = env->nb_BATs;
- env->nb_BATs = 0;
- if (get_physical_address(env, &ctx, addr, 0, ACCESS_INT) == 0) {
- ret = ctx.raddr;
- }
- env->nb_BATs = nb_BATs;
- return ret;
-}
-
-static inline target_ulong booke_tlb_to_page_size(int size)
-{
- return 1024 << (2 * size);
-}
-
-static inline int booke_page_size_to_tlb(target_ulong page_size)
-{
- int size;
-
- switch (page_size) {
- case 0x00000400UL:
- size = 0x0;
- break;
- case 0x00001000UL:
- size = 0x1;
- break;
- case 0x00004000UL:
- size = 0x2;
- break;
- case 0x00010000UL:
- size = 0x3;
- break;
- case 0x00040000UL:
- size = 0x4;
- break;
- case 0x00100000UL:
- size = 0x5;
- break;
- case 0x00400000UL:
- size = 0x6;
- break;
- case 0x01000000UL:
- size = 0x7;
- break;
- case 0x04000000UL:
- size = 0x8;
- break;
- case 0x10000000UL:
- size = 0x9;
- break;
- case 0x40000000UL:
- size = 0xA;
- break;
-#if defined(TARGET_PPC64)
- case 0x000100000000ULL:
- size = 0xB;
- break;
- case 0x000400000000ULL:
- size = 0xC;
- break;
- case 0x001000000000ULL:
- size = 0xD;
- break;
- case 0x004000000000ULL:
- size = 0xE;
- break;
- case 0x010000000000ULL:
- size = 0xF;
- break;
-#endif
- default:
- size = -1;
- break;
- }
-
- return size;
-}
-
-/* Helpers for 4xx TLB management */
-#define PPC4XX_TLB_ENTRY_MASK 0x0000003f /* Mask for 64 TLB entries */
-
-#define PPC4XX_TLBHI_V 0x00000040
-#define PPC4XX_TLBHI_E 0x00000020
-#define PPC4XX_TLBHI_SIZE_MIN 0
-#define PPC4XX_TLBHI_SIZE_MAX 7
-#define PPC4XX_TLBHI_SIZE_DEFAULT 1
-#define PPC4XX_TLBHI_SIZE_SHIFT 7
-#define PPC4XX_TLBHI_SIZE_MASK 0x00000007
-
-#define PPC4XX_TLBLO_EX 0x00000200
-#define PPC4XX_TLBLO_WR 0x00000100
-#define PPC4XX_TLBLO_ATTR_MASK 0x000000FF
-#define PPC4XX_TLBLO_RPN_MASK 0xFFFFFC00
-
-target_ulong helper_4xx_tlbre_hi(CPUPPCState *env, target_ulong entry)
-{
- ppcemb_tlb_t *tlb;
- target_ulong ret;
- int size;
-
- entry &= PPC4XX_TLB_ENTRY_MASK;
- tlb = &env->tlb.tlbe[entry];
- ret = tlb->EPN;
- if (tlb->prot & PAGE_VALID) {
- ret |= PPC4XX_TLBHI_V;
- }
- size = booke_page_size_to_tlb(tlb->size);
- if (size < PPC4XX_TLBHI_SIZE_MIN || size > PPC4XX_TLBHI_SIZE_MAX) {
- size = PPC4XX_TLBHI_SIZE_DEFAULT;
- }
- ret |= size << PPC4XX_TLBHI_SIZE_SHIFT;
- env->spr[SPR_40x_PID] = tlb->PID;
- return ret;
-}
-
-target_ulong helper_4xx_tlbre_lo(CPUPPCState *env, target_ulong entry)
-{
- ppcemb_tlb_t *tlb;
- target_ulong ret;
-
- entry &= PPC4XX_TLB_ENTRY_MASK;
- tlb = &env->tlb.tlbe[entry];
- ret = tlb->RPN;
- if (tlb->prot & PAGE_EXEC) {
- ret |= PPC4XX_TLBLO_EX;
- }
- if (tlb->prot & PAGE_WRITE) {
- ret |= PPC4XX_TLBLO_WR;
- }
- return ret;
-}
-
-void helper_4xx_tlbwe_hi(CPUPPCState *env, target_ulong entry,
- target_ulong val)
-{
- PowerPCCPU *cpu = ppc_env_get_cpu(env);
- CPUState *cs = CPU(cpu);
- ppcemb_tlb_t *tlb;
- target_ulong page, end;
-
- LOG_SWTLB("%s entry %d val " TARGET_FMT_lx "\n", __func__, (int)entry,
- val);
- entry &= PPC4XX_TLB_ENTRY_MASK;
- tlb = &env->tlb.tlbe[entry];
- /* Invalidate previous TLB (if it's valid) */
- if (tlb->prot & PAGE_VALID) {
- end = tlb->EPN + tlb->size;
- LOG_SWTLB("%s: invalidate old TLB %d start " TARGET_FMT_lx " end "
- TARGET_FMT_lx "\n", __func__, (int)entry, tlb->EPN, end);
- for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE) {
- tlb_flush_page(cs, page);
- }
- }
- tlb->size = booke_tlb_to_page_size((val >> PPC4XX_TLBHI_SIZE_SHIFT)
- & PPC4XX_TLBHI_SIZE_MASK);
- /* We cannot handle TLB size < TARGET_PAGE_SIZE.
- * If this ever occurs, one should use the ppcemb target instead
- * of the ppc or ppc64 one
- */
- if ((val & PPC4XX_TLBHI_V) && tlb->size < TARGET_PAGE_SIZE) {
- cpu_abort(cs, "TLB size " TARGET_FMT_lu " < %u "
- "are not supported (%d)\n",
- tlb->size, TARGET_PAGE_SIZE, (int)((val >> 7) & 0x7));
- }
- tlb->EPN = val & ~(tlb->size - 1);
- if (val & PPC4XX_TLBHI_V) {
- tlb->prot |= PAGE_VALID;
- if (val & PPC4XX_TLBHI_E) {
- /* XXX: TO BE FIXED */
- cpu_abort(cs,
- "Little-endian TLB entries are not supported by now\n");
- }
- } else {
- tlb->prot &= ~PAGE_VALID;
- }
- tlb->PID = env->spr[SPR_40x_PID]; /* PID */
- LOG_SWTLB("%s: set up TLB %d RPN " TARGET_FMT_plx " EPN " TARGET_FMT_lx
- " size " TARGET_FMT_lx " prot %c%c%c%c PID %d\n", __func__,
- (int)entry, tlb->RPN, tlb->EPN, tlb->size,
- tlb->prot & PAGE_READ ? 'r' : '-',
- tlb->prot & PAGE_WRITE ? 'w' : '-',
- tlb->prot & PAGE_EXEC ? 'x' : '-',
- tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID);
- /* Invalidate new TLB (if valid) */
- if (tlb->prot & PAGE_VALID) {
- end = tlb->EPN + tlb->size;
- LOG_SWTLB("%s: invalidate TLB %d start " TARGET_FMT_lx " end "
- TARGET_FMT_lx "\n", __func__, (int)entry, tlb->EPN, end);
- for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE) {
- tlb_flush_page(cs, page);
- }
- }
-}
-
-void helper_4xx_tlbwe_lo(CPUPPCState *env, target_ulong entry,
- target_ulong val)
-{
- ppcemb_tlb_t *tlb;
-
- LOG_SWTLB("%s entry %i val " TARGET_FMT_lx "\n", __func__, (int)entry,
- val);
- entry &= PPC4XX_TLB_ENTRY_MASK;
- tlb = &env->tlb.tlbe[entry];
- tlb->attr = val & PPC4XX_TLBLO_ATTR_MASK;
- tlb->RPN = val & PPC4XX_TLBLO_RPN_MASK;
- tlb->prot = PAGE_READ;
- if (val & PPC4XX_TLBLO_EX) {
- tlb->prot |= PAGE_EXEC;
- }
- if (val & PPC4XX_TLBLO_WR) {
- tlb->prot |= PAGE_WRITE;
- }
- LOG_SWTLB("%s: set up TLB %d RPN " TARGET_FMT_plx " EPN " TARGET_FMT_lx
- " size " TARGET_FMT_lx " prot %c%c%c%c PID %d\n", __func__,
- (int)entry, tlb->RPN, tlb->EPN, tlb->size,
- tlb->prot & PAGE_READ ? 'r' : '-',
- tlb->prot & PAGE_WRITE ? 'w' : '-',
- tlb->prot & PAGE_EXEC ? 'x' : '-',
- tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID);
-}
-
-target_ulong helper_4xx_tlbsx(CPUPPCState *env, target_ulong address)
-{
- return ppcemb_tlb_search(env, address, env->spr[SPR_40x_PID]);
-}
-
-/* PowerPC 440 TLB management */
-void helper_440_tlbwe(CPUPPCState *env, uint32_t word, target_ulong entry,
- target_ulong value)
-{
- PowerPCCPU *cpu = ppc_env_get_cpu(env);
- ppcemb_tlb_t *tlb;
- target_ulong EPN, RPN, size;
- int do_flush_tlbs;
-
- LOG_SWTLB("%s word %d entry %d value " TARGET_FMT_lx "\n",
- __func__, word, (int)entry, value);
- do_flush_tlbs = 0;
- entry &= 0x3F;
- tlb = &env->tlb.tlbe[entry];
- switch (word) {
- default:
- /* Just here to please gcc */
- case 0:
- EPN = value & 0xFFFFFC00;
- if ((tlb->prot & PAGE_VALID) && EPN != tlb->EPN) {
- do_flush_tlbs = 1;
- }
- tlb->EPN = EPN;
- size = booke_tlb_to_page_size((value >> 4) & 0xF);
- if ((tlb->prot & PAGE_VALID) && tlb->size < size) {
- do_flush_tlbs = 1;
- }
- tlb->size = size;
- tlb->attr &= ~0x1;
- tlb->attr |= (value >> 8) & 1;
- if (value & 0x200) {
- tlb->prot |= PAGE_VALID;
- } else {
- if (tlb->prot & PAGE_VALID) {
- tlb->prot &= ~PAGE_VALID;
- do_flush_tlbs = 1;
- }
- }
- tlb->PID = env->spr[SPR_440_MMUCR] & 0x000000FF;
- if (do_flush_tlbs) {
- tlb_flush(CPU(cpu), 1);
- }
- break;
- case 1:
- RPN = value & 0xFFFFFC0F;
- if ((tlb->prot & PAGE_VALID) && tlb->RPN != RPN) {
- tlb_flush(CPU(cpu), 1);
- }
- tlb->RPN = RPN;
- break;
- case 2:
- tlb->attr = (tlb->attr & 0x1) | (value & 0x0000FF00);
- tlb->prot = tlb->prot & PAGE_VALID;
- if (value & 0x1) {
- tlb->prot |= PAGE_READ << 4;
- }
- if (value & 0x2) {
- tlb->prot |= PAGE_WRITE << 4;
- }
- if (value & 0x4) {
- tlb->prot |= PAGE_EXEC << 4;
- }
- if (value & 0x8) {
- tlb->prot |= PAGE_READ;
- }
- if (value & 0x10) {
- tlb->prot |= PAGE_WRITE;
- }
- if (value & 0x20) {
- tlb->prot |= PAGE_EXEC;
- }
- break;
- }
-}
-
-target_ulong helper_440_tlbre(CPUPPCState *env, uint32_t word,
- target_ulong entry)
-{
- ppcemb_tlb_t *tlb;
- target_ulong ret;
- int size;
-
- entry &= 0x3F;
- tlb = &env->tlb.tlbe[entry];
- switch (word) {
- default:
- /* Just here to please gcc */
- case 0:
- ret = tlb->EPN;
- size = booke_page_size_to_tlb(tlb->size);
- if (size < 0 || size > 0xF) {
- size = 1;
- }
- ret |= size << 4;
- if (tlb->attr & 0x1) {
- ret |= 0x100;
- }
- if (tlb->prot & PAGE_VALID) {
- ret |= 0x200;
- }
- env->spr[SPR_440_MMUCR] &= ~0x000000FF;
- env->spr[SPR_440_MMUCR] |= tlb->PID;
- break;
- case 1:
- ret = tlb->RPN;
- break;
- case 2:
- ret = tlb->attr & ~0x1;
- if (tlb->prot & (PAGE_READ << 4)) {
- ret |= 0x1;
- }
- if (tlb->prot & (PAGE_WRITE << 4)) {
- ret |= 0x2;
- }
- if (tlb->prot & (PAGE_EXEC << 4)) {
- ret |= 0x4;
- }
- if (tlb->prot & PAGE_READ) {
- ret |= 0x8;
- }
- if (tlb->prot & PAGE_WRITE) {
- ret |= 0x10;
- }
- if (tlb->prot & PAGE_EXEC) {
- ret |= 0x20;
- }
- break;
- }
- return ret;
-}
-
-target_ulong helper_440_tlbsx(CPUPPCState *env, target_ulong address)
-{
- return ppcemb_tlb_search(env, address, env->spr[SPR_440_MMUCR] & 0xFF);
-}
-
-/* PowerPC BookE 2.06 TLB management */
-
-static ppcmas_tlb_t *booke206_cur_tlb(CPUPPCState *env)
-{
- PowerPCCPU *cpu = ppc_env_get_cpu(env);
- uint32_t tlbncfg = 0;
- int esel = (env->spr[SPR_BOOKE_MAS0] & MAS0_ESEL_MASK) >> MAS0_ESEL_SHIFT;
- int ea = (env->spr[SPR_BOOKE_MAS2] & MAS2_EPN_MASK);
- int tlb;
-
- tlb = (env->spr[SPR_BOOKE_MAS0] & MAS0_TLBSEL_MASK) >> MAS0_TLBSEL_SHIFT;
- tlbncfg = env->spr[SPR_BOOKE_TLB0CFG + tlb];
-
- if ((tlbncfg & TLBnCFG_HES) && (env->spr[SPR_BOOKE_MAS0] & MAS0_HES)) {
- cpu_abort(CPU(cpu), "we don't support HES yet\n");
- }
-
- return booke206_get_tlbm(env, tlb, ea, esel);
-}
-
-void helper_booke_setpid(CPUPPCState *env, uint32_t pidn, target_ulong pid)
-{
- PowerPCCPU *cpu = ppc_env_get_cpu(env);
-
- env->spr[pidn] = pid;
- /* changing PIDs mean we're in a different address space now */
- tlb_flush(CPU(cpu), 1);
-}
-
-void helper_booke206_tlbwe(CPUPPCState *env)
-{
- PowerPCCPU *cpu = ppc_env_get_cpu(env);
- uint32_t tlbncfg, tlbn;
- ppcmas_tlb_t *tlb;
- uint32_t size_tlb, size_ps;
- target_ulong mask;
-
-
- switch (env->spr[SPR_BOOKE_MAS0] & MAS0_WQ_MASK) {
- case MAS0_WQ_ALWAYS:
- /* good to go, write that entry */
- break;
- case MAS0_WQ_COND:
- /* XXX check if reserved */
- if (0) {
- return;
- }
- break;
- case MAS0_WQ_CLR_RSRV:
- /* XXX clear entry */
- return;
- default:
- /* no idea what to do */
- return;
- }
-
- if (((env->spr[SPR_BOOKE_MAS0] & MAS0_ATSEL) == MAS0_ATSEL_LRAT) &&
- !msr_gs) {
- /* XXX we don't support direct LRAT setting yet */
- fprintf(stderr, "cpu: don't support LRAT setting yet\n");
- return;
- }
-
- tlbn = (env->spr[SPR_BOOKE_MAS0] & MAS0_TLBSEL_MASK) >> MAS0_TLBSEL_SHIFT;
- tlbncfg = env->spr[SPR_BOOKE_TLB0CFG + tlbn];
-
- tlb = booke206_cur_tlb(env);
-
- if (!tlb) {
- helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,
- POWERPC_EXCP_INVAL |
- POWERPC_EXCP_INVAL_INVAL);
- }
-
- /* check that we support the targeted size */
- size_tlb = (env->spr[SPR_BOOKE_MAS1] & MAS1_TSIZE_MASK) >> MAS1_TSIZE_SHIFT;
- size_ps = booke206_tlbnps(env, tlbn);
- if ((env->spr[SPR_BOOKE_MAS1] & MAS1_VALID) && (tlbncfg & TLBnCFG_AVAIL) &&
- !(size_ps & (1 << size_tlb))) {
- helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,
- POWERPC_EXCP_INVAL |
- POWERPC_EXCP_INVAL_INVAL);
- }
-
- if (msr_gs) {
- cpu_abort(CPU(cpu), "missing HV implementation\n");
- }
- tlb->mas7_3 = ((uint64_t)env->spr[SPR_BOOKE_MAS7] << 32) |
- env->spr[SPR_BOOKE_MAS3];
- tlb->mas1 = env->spr[SPR_BOOKE_MAS1];
-
- /* MAV 1.0 only */
- if (!(tlbncfg & TLBnCFG_AVAIL)) {
- /* force !AVAIL TLB entries to correct page size */
- tlb->mas1 &= ~MAS1_TSIZE_MASK;
- /* XXX can be configured in MMUCSR0 */
- tlb->mas1 |= (tlbncfg & TLBnCFG_MINSIZE) >> 12;
- }
-
- /* Make a mask from TLB size to discard invalid bits in EPN field */
- mask = ~(booke206_tlb_to_page_size(env, tlb) - 1);
- /* Add a mask for page attributes */
- mask |= MAS2_ACM | MAS2_VLE | MAS2_W | MAS2_I | MAS2_M | MAS2_G | MAS2_E;
-
- if (!msr_cm) {
- /* Executing a tlbwe instruction in 32-bit mode will set
- * bits 0:31 of the TLB EPN field to zero.
- */
- mask &= 0xffffffff;
- }
-
- tlb->mas2 = env->spr[SPR_BOOKE_MAS2] & mask;
-
- if (!(tlbncfg & TLBnCFG_IPROT)) {
- /* no IPROT supported by TLB */
- tlb->mas1 &= ~MAS1_IPROT;
- }
-
- if (booke206_tlb_to_page_size(env, tlb) == TARGET_PAGE_SIZE) {
- tlb_flush_page(CPU(cpu), tlb->mas2 & MAS2_EPN_MASK);
- } else {
- tlb_flush(CPU(cpu), 1);
- }
-}
-
-static inline void booke206_tlb_to_mas(CPUPPCState *env, ppcmas_tlb_t *tlb)
-{
- int tlbn = booke206_tlbm_to_tlbn(env, tlb);
- int way = booke206_tlbm_to_way(env, tlb);
-
- env->spr[SPR_BOOKE_MAS0] = tlbn << MAS0_TLBSEL_SHIFT;
- env->spr[SPR_BOOKE_MAS0] |= way << MAS0_ESEL_SHIFT;
- env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_NV_SHIFT;
-
- env->spr[SPR_BOOKE_MAS1] = tlb->mas1;
- env->spr[SPR_BOOKE_MAS2] = tlb->mas2;
- env->spr[SPR_BOOKE_MAS3] = tlb->mas7_3;
- env->spr[SPR_BOOKE_MAS7] = tlb->mas7_3 >> 32;
-}
-
-void helper_booke206_tlbre(CPUPPCState *env)
-{
- ppcmas_tlb_t *tlb = NULL;
-
- tlb = booke206_cur_tlb(env);
- if (!tlb) {
- env->spr[SPR_BOOKE_MAS1] = 0;
- } else {
- booke206_tlb_to_mas(env, tlb);
- }
-}
-
-void helper_booke206_tlbsx(CPUPPCState *env, target_ulong address)
-{
- ppcmas_tlb_t *tlb = NULL;
- int i, j;
- hwaddr raddr;
- uint32_t spid, sas;
-
- spid = (env->spr[SPR_BOOKE_MAS6] & MAS6_SPID_MASK) >> MAS6_SPID_SHIFT;
- sas = env->spr[SPR_BOOKE_MAS6] & MAS6_SAS;
-
- for (i = 0; i < BOOKE206_MAX_TLBN; i++) {
- int ways = booke206_tlb_ways(env, i);
-
- for (j = 0; j < ways; j++) {
- tlb = booke206_get_tlbm(env, i, address, j);
-
- if (!tlb) {
- continue;
- }
-
- if (ppcmas_tlb_check(env, tlb, &raddr, address, spid)) {
- continue;
- }
-
- if (sas != ((tlb->mas1 & MAS1_TS) >> MAS1_TS_SHIFT)) {
- continue;
- }
-
- booke206_tlb_to_mas(env, tlb);
- return;
- }
- }
-
- /* no entry found, fill with defaults */
- env->spr[SPR_BOOKE_MAS0] = env->spr[SPR_BOOKE_MAS4] & MAS4_TLBSELD_MASK;
- env->spr[SPR_BOOKE_MAS1] = env->spr[SPR_BOOKE_MAS4] & MAS4_TSIZED_MASK;
- env->spr[SPR_BOOKE_MAS2] = env->spr[SPR_BOOKE_MAS4] & MAS4_WIMGED_MASK;
- env->spr[SPR_BOOKE_MAS3] = 0;
- env->spr[SPR_BOOKE_MAS7] = 0;
-
- if (env->spr[SPR_BOOKE_MAS6] & MAS6_SAS) {
- env->spr[SPR_BOOKE_MAS1] |= MAS1_TS;
- }
-
- env->spr[SPR_BOOKE_MAS1] |= (env->spr[SPR_BOOKE_MAS6] >> 16)
- << MAS1_TID_SHIFT;
-
- /* next victim logic */
- env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_ESEL_SHIFT;
- env->last_way++;
- env->last_way &= booke206_tlb_ways(env, 0) - 1;
- env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_NV_SHIFT;
-}
-
-static inline void booke206_invalidate_ea_tlb(CPUPPCState *env, int tlbn,
- uint32_t ea)
-{
- int i;
- int ways = booke206_tlb_ways(env, tlbn);
- target_ulong mask;
-
- for (i = 0; i < ways; i++) {
- ppcmas_tlb_t *tlb = booke206_get_tlbm(env, tlbn, ea, i);
- if (!tlb) {
- continue;
- }
- mask = ~(booke206_tlb_to_page_size(env, tlb) - 1);
- if (((tlb->mas2 & MAS2_EPN_MASK) == (ea & mask)) &&
- !(tlb->mas1 & MAS1_IPROT)) {
- tlb->mas1 &= ~MAS1_VALID;
- }
- }
-}
-
-void helper_booke206_tlbivax(CPUPPCState *env, target_ulong address)
-{
- PowerPCCPU *cpu = ppc_env_get_cpu(env);
-
- if (address & 0x4) {
- /* flush all entries */
- if (address & 0x8) {
- /* flush all of TLB1 */
- booke206_flush_tlb(env, BOOKE206_FLUSH_TLB1, 1);
- } else {
- /* flush all of TLB0 */
- booke206_flush_tlb(env, BOOKE206_FLUSH_TLB0, 0);
- }
- return;
- }
-
- if (address & 0x8) {
- /* flush TLB1 entries */
- booke206_invalidate_ea_tlb(env, 1, address);
- tlb_flush(CPU(cpu), 1);
- } else {
- /* flush TLB0 entries */
- booke206_invalidate_ea_tlb(env, 0, address);
- tlb_flush_page(CPU(cpu), address & MAS2_EPN_MASK);
- }
-}
-
-void helper_booke206_tlbilx0(CPUPPCState *env, target_ulong address)
-{
- /* XXX missing LPID handling */
- booke206_flush_tlb(env, -1, 1);
-}
-
-void helper_booke206_tlbilx1(CPUPPCState *env, target_ulong address)
-{
- PowerPCCPU *cpu = ppc_env_get_cpu(env);
- int i, j;
- int tid = (env->spr[SPR_BOOKE_MAS6] & MAS6_SPID);
- ppcmas_tlb_t *tlb = env->tlb.tlbm;
- int tlb_size;
-
- /* XXX missing LPID handling */
- for (i = 0; i < BOOKE206_MAX_TLBN; i++) {
- tlb_size = booke206_tlb_size(env, i);
- for (j = 0; j < tlb_size; j++) {
- if (!(tlb[j].mas1 & MAS1_IPROT) &&
- ((tlb[j].mas1 & MAS1_TID_MASK) == tid)) {
- tlb[j].mas1 &= ~MAS1_VALID;
- }
- }
- tlb += booke206_tlb_size(env, i);
- }
- tlb_flush(CPU(cpu), 1);
-}
-
-void helper_booke206_tlbilx3(CPUPPCState *env, target_ulong address)
-{
- PowerPCCPU *cpu = ppc_env_get_cpu(env);
- int i, j;
- ppcmas_tlb_t *tlb;
- int tid = (env->spr[SPR_BOOKE_MAS6] & MAS6_SPID);
- int pid = tid >> MAS6_SPID_SHIFT;
- int sgs = env->spr[SPR_BOOKE_MAS5] & MAS5_SGS;
- int ind = (env->spr[SPR_BOOKE_MAS6] & MAS6_SIND) ? MAS1_IND : 0;
- /* XXX check for unsupported isize and raise an invalid opcode then */
- int size = env->spr[SPR_BOOKE_MAS6] & MAS6_ISIZE_MASK;
- /* XXX implement MAV2 handling */
- bool mav2 = false;
-
- /* XXX missing LPID handling */
- /* flush by pid and ea */
- for (i = 0; i < BOOKE206_MAX_TLBN; i++) {
- int ways = booke206_tlb_ways(env, i);
-
- for (j = 0; j < ways; j++) {
- tlb = booke206_get_tlbm(env, i, address, j);
- if (!tlb) {
- continue;
- }
- if ((ppcmas_tlb_check(env, tlb, NULL, address, pid) != 0) ||
- (tlb->mas1 & MAS1_IPROT) ||
- ((tlb->mas1 & MAS1_IND) != ind) ||
- ((tlb->mas8 & MAS8_TGS) != sgs)) {
- continue;
- }
- if (mav2 && ((tlb->mas1 & MAS1_TSIZE_MASK) != size)) {
- /* XXX only check when MMUCFG[TWC] || TLBnCFG[HES] */
- continue;
- }
- /* XXX e500mc doesn't match SAS, but other cores might */
- tlb->mas1 &= ~MAS1_VALID;
- }
- }
- tlb_flush(CPU(cpu), 1);
-}
-
-void helper_booke206_tlbflush(CPUPPCState *env, target_ulong type)
-{
- int flags = 0;
-
- if (type & 2) {
- flags |= BOOKE206_FLUSH_TLB1;
- }
-
- if (type & 4) {
- flags |= BOOKE206_FLUSH_TLB0;
- }
-
- booke206_flush_tlb(env, flags, 1);
-}
-
-
-/*****************************************************************************/
-
-/* try to fill the TLB and return an exception if error. If retaddr is
- NULL, it means that the function was called in C code (i.e. not
- from generated code or from helper.c) */
-/* XXX: fix it to restore all registers */
-void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
- uintptr_t retaddr)
-{
- PowerPCCPU *cpu = POWERPC_CPU(cs);
- PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cs);
- CPUPPCState *env = &cpu->env;
- int ret;
-
- if (pcc->handle_mmu_fault) {
- ret = pcc->handle_mmu_fault(cpu, addr, is_write, mmu_idx);
- } else {
- ret = cpu_ppc_handle_mmu_fault(env, addr, is_write, mmu_idx);
- }
- if (unlikely(ret != 0)) {
- if (likely(retaddr)) {
- /* now we have a real cpu fault */
- cpu_restore_state(cs, retaddr);
- }
- helper_raise_exception_err(env, cs->exception_index, env->error_code);
- }
-}