MMU fix - temporary osi_call support - xec_bc mask fix
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1437 c046a42c-6fe2-441c-8c8c-71466251a162
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bellard
parent
6d506e6dc2
commit
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@ -22,6 +22,8 @@
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//#define DEBUG_MMU
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//#define DEBUG_BATS
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//#define DEBUG_EXCEPTIONS
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/* accurate but slower TLB flush in exceptions */
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//#define ACCURATE_TLB_FLUSH
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/*****************************************************************************/
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/* PPC MMU emulation */
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@ -128,7 +130,7 @@ static int find_pte (uint32_t *RPN, int *prot, uint32_t base, uint32_t va,
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pte0 = ldl_phys(base + (i * 8));
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pte1 = ldl_phys(base + (i * 8) + 4);
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#if defined (DEBUG_MMU)
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if (loglevel > 0) {
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if (loglevel > 0) {
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fprintf(logfile, "Load pte from 0x%08x => 0x%08x 0x%08x "
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"%d %d %d 0x%08x\n", base + (i * 8), pte0, pte1,
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pte0 >> 31, h, (pte0 >> 6) & 1, va);
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@ -175,17 +177,17 @@ static int find_pte (uint32_t *RPN, int *prot, uint32_t base, uint32_t va,
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if (loglevel > 0)
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fprintf(logfile, "PTE access granted !\n");
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#endif
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good = i;
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keep = pte1;
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ret = 0;
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good = i;
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keep = pte1;
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ret = 0;
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} else {
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/* Access right violation */
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ret = -2;
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ret = -2;
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#if defined (DEBUG_MMU)
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if (loglevel > 0)
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fprintf(logfile, "PTE access rejected\n");
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#endif
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}
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}
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*prot = access;
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}
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}
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@ -194,7 +196,7 @@ static int find_pte (uint32_t *RPN, int *prot, uint32_t base, uint32_t va,
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if (good != -1) {
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*RPN = keep & 0xFFFFF000;
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#if defined (DEBUG_MMU)
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if (loglevel > 0) {
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if (loglevel > 0) {
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fprintf(logfile, "found PTE at addr 0x%08x prot=0x%01x ret=%d\n",
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*RPN, *prot, ret);
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}
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@ -205,7 +207,7 @@ static int find_pte (uint32_t *RPN, int *prot, uint32_t base, uint32_t va,
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keep |= 0x00000100;
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store = 1;
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}
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if (!(keep & 0x00000080)) {
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if (!(keep & 0x00000080)) {
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if (rw && ret == 0) {
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/* Change flag */
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keep |= 0x00000080;
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@ -251,7 +253,7 @@ static int get_segment (CPUState *env, uint32_t *real, int *prot,
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((sr & 0x40000000) && msr_pr == 0)) ? 1 : 0;
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if ((sr & 0x80000000) == 0) {
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#if defined (DEBUG_MMU)
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if (loglevel > 0)
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if (loglevel > 0)
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fprintf(logfile, "pte segment: key=%d n=0x%08x\n",
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key, sr & 0x10000000);
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#endif
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@ -604,7 +606,7 @@ void _store_xer (CPUState *env, uint32_t value)
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xer_so = (value >> XER_SO) & 0x01;
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xer_ov = (value >> XER_OV) & 0x01;
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xer_ca = (value >> XER_CA) & 0x01;
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xer_bc = (value >> XER_BC) & 0x1f;
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xer_bc = (value >> XER_BC) & 0x3f;
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}
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uint32_t _load_msr (CPUState *env)
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@ -628,12 +630,12 @@ uint32_t _load_msr (CPUState *env)
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void _store_msr (CPUState *env, uint32_t value)
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{
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#if 0 // TRY
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#ifdef ACCURATE_TLB_FLUSH
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if (((value >> MSR_IR) & 0x01) != msr_ir ||
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((value >> MSR_DR) & 0x01) != msr_dr)
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{
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/* Flush all tlb when changing translation mode or privilege level */
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tlb_flush(env, 1);
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tlb_flush(env, 1);
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}
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#endif
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msr_pow = (value >> MSR_POW) & 0x03;
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@ -660,6 +662,13 @@ void do_interrupt (CPUState *env)
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env->exception_index = -1;
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}
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#else
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static void dump_syscall(CPUState *env)
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{
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fprintf(logfile, "syscall r0=0x%08x r3=0x%08x r4=0x%08x r5=0x%08x r6=0x%08x nip=0x%08x\n",
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env->gpr[0], env->gpr[3], env->gpr[4],
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env->gpr[5], env->gpr[6], env->nip);
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}
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void do_interrupt (CPUState *env)
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{
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uint32_t msr;
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@ -707,11 +716,11 @@ void do_interrupt (CPUState *env)
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*/
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msr &= ~0xFFFF0000;
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env->spr[DSISR] = 0;
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if (env->error_code & EXCP_DSI_TRANSLATE)
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if ((env->error_code & 0x0f) == EXCP_DSI_TRANSLATE)
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env->spr[DSISR] |= 0x40000000;
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else if (env->error_code & EXCP_DSI_PROT)
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else if ((env->error_code & 0x0f) == EXCP_DSI_PROT)
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env->spr[DSISR] |= 0x08000000;
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else if (env->error_code & EXCP_DSI_NOTSUP) {
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else if ((env->error_code & 0x0f) == EXCP_DSI_NOTSUP) {
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env->spr[DSISR] |= 0x80000000;
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if (env->error_code & EXCP_DSI_DIRECT)
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env->spr[DSISR] |= 0x04000000;
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@ -819,28 +828,15 @@ void do_interrupt (CPUState *env)
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}
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goto store_next;
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case EXCP_SYSCALL:
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/* NOTE: this is a temporary hack to support graphics OSI
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calls from the MOL driver */
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if (env->gpr[3] == 0x113724fa && env->gpr[4] == 0x77810f9b &&
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env->osi_call) {
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if (env->osi_call(env) != 0)
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return;
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}
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if (loglevel & CPU_LOG_INT) {
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fprintf(logfile, "syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n",
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env->gpr[0], env->gpr[3], env->gpr[4],
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env->gpr[5], env->gpr[6]);
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if (env->gpr[0] == 4 && env->gpr[3] == 1) {
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int len, addr, i;
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uint8_t c;
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fprintf(logfile, "write: ");
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addr = env->gpr[4];
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len = env->gpr[5];
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if (len > 64)
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len = 64;
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for(i = 0; i < len; i++) {
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c = 0;
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cpu_memory_rw_debug(env, addr + i, &c, 1, 0);
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if (c < 32 || c > 126)
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c = '.';
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fprintf(logfile, "%c", c);
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}
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fprintf(logfile, "\n");
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}
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dump_syscall(env);
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}
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goto store_next;
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case EXCP_TRACE:
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@ -887,6 +883,9 @@ void do_interrupt (CPUState *env)
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env->nip = excp << 8;
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env->exception_index = EXCP_NONE;
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/* Invalidate all TLB as we may have changed translation mode */
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#ifdef ACCURATE_TLB_FLUSH
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tlb_flush(env, 1);
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#endif
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/* ensure that no TB jump will be modified as
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the program flow was changed */
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#ifdef __sparc__
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