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[Qemu-devel] [PATCH 05/22] ppc: move exception helpers from helper.c to
|
From: |
Blue Swirl |
|
Subject: |
[Qemu-devel] [PATCH 05/22] ppc: move exception helpers from helper.c to excp_helper.c |
|
Date: |
Sun, 22 Apr 2012 13:23:36 +0000 |
Move exception helpers from helper.c to excp_helper.c and
make cpu_dump_rfi() static.
Signed-off-by: Blue Swirl <address@hidden>
---
target-ppc/cpu.h | 2 -
target-ppc/excp_helper.c | 745 ++++++++++++++++++++++++++++++++++++++++++++++
target-ppc/helper.c | 744 ---------------------------------------------
3 files changed, 745 insertions(+), 746 deletions(-)
diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index 84c9674..6216fd9 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -1117,8 +1117,6 @@ int get_physical_address (CPUPPCState *env,
mmu_ctx_t *ctx, target_ulong vaddr,
void do_interrupt (CPUPPCState *env);
void ppc_hw_interrupt (CPUPPCState *env);
-void cpu_dump_rfi (target_ulong RA, target_ulong msr);
-
#if !defined(CONFIG_USER_ONLY)
void ppc6xx_tlb_store (CPUPPCState *env, target_ulong EPN, int way,
int is_code,
target_ulong pte0, target_ulong pte1);
diff --git a/target-ppc/excp_helper.c b/target-ppc/excp_helper.c
index c153f4a..7fa7a59 100644
--- a/target-ppc/excp_helper.c
+++ b/target-ppc/excp_helper.c
@@ -24,6 +24,751 @@
//#define DEBUG_OP
//#define DEBUG_EXCEPTIONS
+#ifdef DEBUG_EXCEPTIONS
+# define LOG_EXCP(...) qemu_log(__VA_ARGS__)
+#else
+# define LOG_EXCP(...) do { } while (0)
+#endif
+
+/*****************************************************************************/
+/* PowerPC Hypercall emulation */
+
+void (*cpu_ppc_hypercall)(CPUPPCState *);
+
+/*****************************************************************************/
+/* Exception processing */
+#if defined(CONFIG_USER_ONLY)
+void do_interrupt(CPUPPCState *env)
+{
+ env->exception_index = POWERPC_EXCP_NONE;
+ env->error_code = 0;
+}
+
+void ppc_hw_interrupt(CPUPPCState *env)
+{
+ env->exception_index = POWERPC_EXCP_NONE;
+ env->error_code = 0;
+}
+#else /* defined(CONFIG_USER_ONLY) */
+static inline void dump_syscall(CPUPPCState *env)
+{
+ qemu_log_mask(CPU_LOG_INT, "syscall r0=%016" PRIx64 " r3=%016" PRIx64
+ " r4=%016" PRIx64 " r5=%016" PRIx64 " r6=%016" PRIx64
+ " nip=" TARGET_FMT_lx "\n",
+ ppc_dump_gpr(env, 0), ppc_dump_gpr(env, 3),
+ ppc_dump_gpr(env, 4), ppc_dump_gpr(env, 5),
+ ppc_dump_gpr(env, 6), env->nip);
+}
+
+/* Note that this function should be greatly optimized
+ * when called with a constant excp, from ppc_hw_interrupt
+ */
+static inline void powerpc_excp(CPUPPCState *env, int excp_model, int excp)
+{
+ target_ulong msr, new_msr, vector;
+ int srr0, srr1, asrr0, asrr1;
+ int lpes0, lpes1, lev;
+
+ if (0) {
+ /* XXX: find a suitable condition to enable the hypervisor mode */
+ lpes0 = (env->spr[SPR_LPCR] >> 1) & 1;
+ lpes1 = (env->spr[SPR_LPCR] >> 2) & 1;
+ } else {
+ /* Those values ensure we won't enter the hypervisor mode */
+ lpes0 = 0;
+ lpes1 = 1;
+ }
+
+ qemu_log_mask(CPU_LOG_INT, "Raise exception at " TARGET_FMT_lx
+ " => %08x (%02x)\n", env->nip, excp, env->error_code);
+
+ /* new srr1 value excluding must-be-zero bits */
+ msr = env->msr & ~0x783f0000ULL;
+
+ /* new interrupt handler msr */
+ new_msr = env->msr & ((target_ulong)1 << MSR_ME);
+
+ /* target registers */
+ srr0 = SPR_SRR0;
+ srr1 = SPR_SRR1;
+ asrr0 = -1;
+ asrr1 = -1;
+
+ switch (excp) {
+ case POWERPC_EXCP_NONE:
+ /* Should never happen */
+ return;
+ case POWERPC_EXCP_CRITICAL: /* Critical input */
+ switch (excp_model) {
+ case POWERPC_EXCP_40x:
+ srr0 = SPR_40x_SRR2;
+ srr1 = SPR_40x_SRR3;
+ break;
+ case POWERPC_EXCP_BOOKE:
+ srr0 = SPR_BOOKE_CSRR0;
+ srr1 = SPR_BOOKE_CSRR1;
+ break;
+ case POWERPC_EXCP_G2:
+ break;
+ default:
+ goto excp_invalid;
+ }
+ goto store_next;
+ case POWERPC_EXCP_MCHECK: /* Machine check exception */
+ if (msr_me == 0) {
+ /* Machine check exception is not enabled.
+ * Enter checkstop state.
+ */
+ if (qemu_log_enabled()) {
+ qemu_log("Machine check while not allowed. "
+ "Entering checkstop state\n");
+ } else {
+ fprintf(stderr, "Machine check while not allowed. "
+ "Entering checkstop state\n");
+ }
+ env->halted = 1;
+ env->interrupt_request |= CPU_INTERRUPT_EXITTB;
+ }
+ if (0) {
+ /* XXX: find a suitable condition to enable the hypervisor mode */
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+
+ /* machine check exceptions don't have ME set */
+ new_msr &= ~((target_ulong)1 << MSR_ME);
+
+ /* XXX: should also have something loaded in DAR / DSISR */
+ switch (excp_model) {
+ case POWERPC_EXCP_40x:
+ srr0 = SPR_40x_SRR2;
+ srr1 = SPR_40x_SRR3;
+ break;
+ case POWERPC_EXCP_BOOKE:
+ srr0 = SPR_BOOKE_MCSRR0;
+ srr1 = SPR_BOOKE_MCSRR1;
+ asrr0 = SPR_BOOKE_CSRR0;
+ asrr1 = SPR_BOOKE_CSRR1;
+ break;
+ default:
+ break;
+ }
+ goto store_next;
+ case POWERPC_EXCP_DSI: /* Data storage exception */
+ LOG_EXCP("DSI exception: DSISR=" TARGET_FMT_lx" DAR=" TARGET_FMT_lx
+ "\n", env->spr[SPR_DSISR], env->spr[SPR_DAR]);
+ if (lpes1 == 0) {
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+ goto store_next;
+ case POWERPC_EXCP_ISI: /* Instruction storage exception */
+ LOG_EXCP("ISI exception: msr=" TARGET_FMT_lx ", nip=" TARGET_FMT_lx
+ "\n", msr, env->nip);
+ if (lpes1 == 0) {
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+ msr |= env->error_code;
+ goto store_next;
+ case POWERPC_EXCP_EXTERNAL: /* External input */
+ if (lpes0 == 1) {
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+ goto store_next;
+ case POWERPC_EXCP_ALIGN: /* Alignment exception */
+ if (lpes1 == 0) {
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+ /* XXX: this is false */
+ /* Get rS/rD and rA from faulting opcode */
+ env->spr[SPR_DSISR] |= (ldl_code((env->nip - 4)) & 0x03FF0000) >> 16;
+ goto store_current;
+ case POWERPC_EXCP_PROGRAM: /* Program exception */
+ switch (env->error_code & ~0xF) {
+ case POWERPC_EXCP_FP:
+ if ((msr_fe0 == 0 && msr_fe1 == 0) || msr_fp == 0) {
+ LOG_EXCP("Ignore floating point exception\n");
+ env->exception_index = POWERPC_EXCP_NONE;
+ env->error_code = 0;
+ return;
+ }
+ if (lpes1 == 0) {
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+ msr |= 0x00100000;
+ if (msr_fe0 == msr_fe1) {
+ goto store_next;
+ }
+ msr |= 0x00010000;
+ break;
+ case POWERPC_EXCP_INVAL:
+ LOG_EXCP("Invalid instruction at " TARGET_FMT_lx "\n", env->nip);
+ if (lpes1 == 0) {
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+ msr |= 0x00080000;
+ env->spr[SPR_BOOKE_ESR] = ESR_PIL;
+ break;
+ case POWERPC_EXCP_PRIV:
+ if (lpes1 == 0) {
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+ msr |= 0x00040000;
+ env->spr[SPR_BOOKE_ESR] = ESR_PPR;
+ break;
+ case POWERPC_EXCP_TRAP:
+ if (lpes1 == 0) {
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+ msr |= 0x00020000;
+ env->spr[SPR_BOOKE_ESR] = ESR_PTR;
+ break;
+ default:
+ /* Should never occur */
+ cpu_abort(env, "Invalid program exception %d. Aborting\n",
+ env->error_code);
+ break;
+ }
+ goto store_current;
+ case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
+ if (lpes1 == 0) {
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+ goto store_current;
+ case POWERPC_EXCP_SYSCALL: /* System call exception */
+ dump_syscall(env);
+ lev = env->error_code;
+ if ((lev == 1) && cpu_ppc_hypercall) {
+ cpu_ppc_hypercall(env);
+ return;
+ }
+ if (lev == 1 || (lpes0 == 0 && lpes1 == 0)) {
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+ goto store_next;
+ case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
+ goto store_current;
+ case POWERPC_EXCP_DECR: /* Decrementer exception */
+ if (lpes1 == 0) {
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+ goto store_next;
+ case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
+ /* FIT on 4xx */
+ LOG_EXCP("FIT exception\n");
+ goto store_next;
+ case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
+ LOG_EXCP("WDT exception\n");
+ switch (excp_model) {
+ case POWERPC_EXCP_BOOKE:
+ srr0 = SPR_BOOKE_CSRR0;
+ srr1 = SPR_BOOKE_CSRR1;
+ break;
+ default:
+ break;
+ }
+ goto store_next;
+ case POWERPC_EXCP_DTLB: /* Data TLB error */
+ goto store_next;
+ case POWERPC_EXCP_ITLB: /* Instruction TLB error */
+ goto store_next;
+ case POWERPC_EXCP_DEBUG: /* Debug interrupt */
+ switch (excp_model) {
+ case POWERPC_EXCP_BOOKE:
+ srr0 = SPR_BOOKE_DSRR0;
+ srr1 = SPR_BOOKE_DSRR1;
+ asrr0 = SPR_BOOKE_CSRR0;
+ asrr1 = SPR_BOOKE_CSRR1;
+ break;
+ default:
+ break;
+ }
+ /* XXX: TODO */
+ cpu_abort(env, "Debug exception is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavailable */
+ env->spr[SPR_BOOKE_ESR] = ESR_SPV;
+ goto store_current;
+ case POWERPC_EXCP_EFPDI: /* Embedded floating-point data interrupt */
+ /* XXX: TODO */
+ cpu_abort(env, "Embedded floating point data exception "
+ "is not implemented yet !\n");
+ env->spr[SPR_BOOKE_ESR] = ESR_SPV;
+ goto store_next;
+ case POWERPC_EXCP_EFPRI: /* Embedded floating-point round interrupt */
+ /* XXX: TODO */
+ cpu_abort(env, "Embedded floating point round exception "
+ "is not implemented yet !\n");
+ env->spr[SPR_BOOKE_ESR] = ESR_SPV;
+ goto store_next;
+ case POWERPC_EXCP_EPERFM: /* Embedded performance monitor interrupt */
+ /* XXX: TODO */
+ cpu_abort(env,
+ "Performance counter exception is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
+ goto store_next;
+ case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
+ srr0 = SPR_BOOKE_CSRR0;
+ srr1 = SPR_BOOKE_CSRR1;
+ goto store_next;
+ case POWERPC_EXCP_RESET: /* System reset exception */
+ if (msr_pow) {
+ /* indicate that we resumed from power save mode */
+ msr |= 0x10000;
+ } else {
+ new_msr &= ~((target_ulong)1 << MSR_ME);
+ }
+
+ if (0) {
+ /* XXX: find a suitable condition to enable the hypervisor mode */
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+ goto store_next;
+ case POWERPC_EXCP_DSEG: /* Data segment exception */
+ if (lpes1 == 0) {
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+ goto store_next;
+ case POWERPC_EXCP_ISEG: /* Instruction segment exception */
+ if (lpes1 == 0) {
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+ goto store_next;
+ case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
+ srr0 = SPR_HSRR0;
+ srr1 = SPR_HSRR1;
+ new_msr |= (target_ulong)MSR_HVB;
+ new_msr |= env->msr & ((target_ulong)1 << MSR_RI);
+ goto store_next;
+ case POWERPC_EXCP_TRACE: /* Trace exception */
+ if (lpes1 == 0) {
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+ goto store_next;
+ case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
+ srr0 = SPR_HSRR0;
+ srr1 = SPR_HSRR1;
+ new_msr |= (target_ulong)MSR_HVB;
+ new_msr |= env->msr & ((target_ulong)1 << MSR_RI);
+ goto store_next;
+ case POWERPC_EXCP_HISI: /* Hypervisor instruction storage exception */
+ srr0 = SPR_HSRR0;
+ srr1 = SPR_HSRR1;
+ new_msr |= (target_ulong)MSR_HVB;
+ new_msr |= env->msr & ((target_ulong)1 << MSR_RI);
+ goto store_next;
+ case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
+ srr0 = SPR_HSRR0;
+ srr1 = SPR_HSRR1;
+ new_msr |= (target_ulong)MSR_HVB;
+ new_msr |= env->msr & ((target_ulong)1 << MSR_RI);
+ goto store_next;
+ case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment exception */
+ srr0 = SPR_HSRR0;
+ srr1 = SPR_HSRR1;
+ new_msr |= (target_ulong)MSR_HVB;
+ new_msr |= env->msr & ((target_ulong)1 << MSR_RI);
+ goto store_next;
+ case POWERPC_EXCP_VPU: /* Vector unavailable exception */
+ if (lpes1 == 0) {
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+ goto store_current;
+ case POWERPC_EXCP_PIT: /* Programmable interval timer interrupt */
+ LOG_EXCP("PIT exception\n");
+ goto store_next;
+ case POWERPC_EXCP_IO: /* IO error exception */
+ /* XXX: TODO */
+ cpu_abort(env, "601 IO error exception is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_RUNM: /* Run mode exception */
+ /* XXX: TODO */
+ cpu_abort(env, "601 run mode exception is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_EMUL: /* Emulation trap exception */
+ /* XXX: TODO */
+ cpu_abort(env, "602 emulation trap exception "
+ "is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
+ if (lpes1 == 0) { /* XXX: check this */
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+ switch (excp_model) {
+ case POWERPC_EXCP_602:
+ case POWERPC_EXCP_603:
+ case POWERPC_EXCP_603E:
+ case POWERPC_EXCP_G2:
+ goto tlb_miss_tgpr;
+ case POWERPC_EXCP_7x5:
+ goto tlb_miss;
+ case POWERPC_EXCP_74xx:
+ goto tlb_miss_74xx;
+ default:
+ cpu_abort(env, "Invalid instruction TLB miss exception\n");
+ break;
+ }
+ break;
+ case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
+ if (lpes1 == 0) { /* XXX: check this */
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+ switch (excp_model) {
+ case POWERPC_EXCP_602:
+ case POWERPC_EXCP_603:
+ case POWERPC_EXCP_603E:
+ case POWERPC_EXCP_G2:
+ goto tlb_miss_tgpr;
+ case POWERPC_EXCP_7x5:
+ goto tlb_miss;
+ case POWERPC_EXCP_74xx:
+ goto tlb_miss_74xx;
+ default:
+ cpu_abort(env, "Invalid data load TLB miss exception\n");
+ break;
+ }
+ break;
+ case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
+ if (lpes1 == 0) { /* XXX: check this */
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+ switch (excp_model) {
+ case POWERPC_EXCP_602:
+ case POWERPC_EXCP_603:
+ case POWERPC_EXCP_603E:
+ case POWERPC_EXCP_G2:
+ tlb_miss_tgpr:
+ /* Swap temporary saved registers with GPRs */
+ if (!(new_msr & ((target_ulong)1 << MSR_TGPR))) {
+ new_msr |= (target_ulong)1 << MSR_TGPR;
+ hreg_swap_gpr_tgpr(env);
+ }
+ goto tlb_miss;
+ case POWERPC_EXCP_7x5:
+ tlb_miss:
+#if defined(DEBUG_SOFTWARE_TLB)
+ if (qemu_log_enabled()) {
+ const char *es;
+ target_ulong *miss, *cmp;
+ int en;
+
+ if (excp == POWERPC_EXCP_IFTLB) {
+ es = "I";
+ en = 'I';
+ miss = &env->spr[SPR_IMISS];
+ cmp = &env->spr[SPR_ICMP];
+ } else {
+ if (excp == POWERPC_EXCP_DLTLB) {
+ es = "DL";
+ } else {
+ es = "DS";
+ }
+ en = 'D';
+ miss = &env->spr[SPR_DMISS];
+ cmp = &env->spr[SPR_DCMP];
+ }
+ qemu_log("6xx %sTLB miss: %cM " TARGET_FMT_lx " %cC "
+ TARGET_FMT_lx " H1 " TARGET_FMT_lx " H2 "
+ TARGET_FMT_lx " %08x\n", es, en, *miss, en, *cmp,
+ env->spr[SPR_HASH1], env->spr[SPR_HASH2],
+ env->error_code);
+ }
+#endif
+ msr |= env->crf[0] << 28;
+ msr |= env->error_code; /* key, D/I, S/L bits */
+ /* Set way using a LRU mechanism */
+ msr |= ((env->last_way + 1) & (env->nb_ways - 1)) << 17;
+ break;
+ case POWERPC_EXCP_74xx:
+ tlb_miss_74xx:
+#if defined(DEBUG_SOFTWARE_TLB)
+ if (qemu_log_enabled()) {
+ const char *es;
+ target_ulong *miss, *cmp;
+ int en;
+
+ if (excp == POWERPC_EXCP_IFTLB) {
+ es = "I";
+ en = 'I';
+ miss = &env->spr[SPR_TLBMISS];
+ cmp = &env->spr[SPR_PTEHI];
+ } else {
+ if (excp == POWERPC_EXCP_DLTLB) {
+ es = "DL";
+ } else {
+ es = "DS";
+ }
+ en = 'D';
+ miss = &env->spr[SPR_TLBMISS];
+ cmp = &env->spr[SPR_PTEHI];
+ }
+ qemu_log("74xx %sTLB miss: %cM " TARGET_FMT_lx " %cC "
+ TARGET_FMT_lx " %08x\n", es, en, *miss, en, *cmp,
+ env->error_code);
+ }
+#endif
+ msr |= env->error_code; /* key bit */
+ break;
+ default:
+ cpu_abort(env, "Invalid data store TLB miss exception\n");
+ break;
+ }
+ goto store_next;
+ case POWERPC_EXCP_FPA: /* Floating-point assist exception */
+ /* XXX: TODO */
+ cpu_abort(env, "Floating point assist exception "
+ "is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_DABR: /* Data address breakpoint */
+ /* XXX: TODO */
+ cpu_abort(env, "DABR exception is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
+ /* XXX: TODO */
+ cpu_abort(env, "IABR exception is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_SMI: /* System management interrupt */
+ /* XXX: TODO */
+ cpu_abort(env, "SMI exception is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_THERM: /* Thermal interrupt */
+ /* XXX: TODO */
+ cpu_abort(env, "Thermal management exception "
+ "is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_PERFM: /* Embedded performance monitor interrupt */
+ if (lpes1 == 0) {
+ new_msr |= (target_ulong)MSR_HVB;
+ }
+ /* XXX: TODO */
+ cpu_abort(env,
+ "Performance counter exception is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_VPUA: /* Vector assist exception */
+ /* XXX: TODO */
+ cpu_abort(env, "VPU assist exception is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_SOFTP: /* Soft patch exception */
+ /* XXX: TODO */
+ cpu_abort(env,
+ "970 soft-patch exception is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_MAINT: /* Maintenance exception */
+ /* XXX: TODO */
+ cpu_abort(env,
+ "970 maintenance exception is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_MEXTBR: /* Maskable external breakpoint */
+ /* XXX: TODO */
+ cpu_abort(env, "Maskable external exception "
+ "is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_NMEXTBR: /* Non maskable external breakpoint */
+ /* XXX: TODO */
+ cpu_abort(env, "Non maskable external exception "
+ "is not implemented yet !\n");
+ goto store_next;
+ default:
+ excp_invalid:
+ cpu_abort(env, "Invalid PowerPC exception %d. Aborting\n", excp);
+ break;
+ store_current:
+ /* save current instruction location */
+ env->spr[srr0] = env->nip - 4;
+ break;
+ store_next:
+ /* save next instruction location */
+ env->spr[srr0] = env->nip;
+ break;
+ }
+ /* Save MSR */
+ env->spr[srr1] = msr;
+ /* If any alternate SRR register are defined, duplicate saved values */
+ if (asrr0 != -1) {
+ env->spr[asrr0] = env->spr[srr0];
+ }
+ if (asrr1 != -1) {
+ env->spr[asrr1] = env->spr[srr1];
+ }
+ /* If we disactivated any translation, flush TLBs */
+ if (msr & ((1 << MSR_IR) | (1 << MSR_DR))) {
+ tlb_flush(env, 1);
+ }
+
+ if (msr_ile) {
+ new_msr |= (target_ulong)1 << MSR_LE;
+ }
+
+ /* Jump to handler */
+ vector = env->excp_vectors[excp];
+ if (vector == (target_ulong)-1ULL) {
+ cpu_abort(env, "Raised an exception without defined vector %d\n",
+ excp);
+ }
+ vector |= env->excp_prefix;
+#if defined(TARGET_PPC64)
+ if (excp_model == POWERPC_EXCP_BOOKE) {
+ if (!msr_icm) {
+ vector = (uint32_t)vector;
+ } else {
+ new_msr |= (target_ulong)1 << MSR_CM;
+ }
+ } else {
+ if (!msr_isf && !(env->mmu_model & POWERPC_MMU_64)) {
+ vector = (uint32_t)vector;
+ } else {
+ new_msr |= (target_ulong)1 << MSR_SF;
+ }
+ }
+#endif
+ /* XXX: we don't use hreg_store_msr here as already have treated
+ * any special case that could occur. Just store MSR and update hflags
+ */
+ env->msr = new_msr & env->msr_mask;
+ hreg_compute_hflags(env);
+ env->nip = vector;
+ /* Reset exception state */
+ env->exception_index = POWERPC_EXCP_NONE;
+ env->error_code = 0;
+
+ if ((env->mmu_model == POWERPC_MMU_BOOKE) ||
+ (env->mmu_model == POWERPC_MMU_BOOKE206)) {
+ /* XXX: The BookE changes address space when switching modes,
+ we should probably implement that as different MMU indexes,
+ but for the moment we do it the slow way and flush all. */
+ tlb_flush(env, 1);
+ }
+}
+
+void do_interrupt(CPUPPCState *env)
+{
+ powerpc_excp(env, env->excp_model, env->exception_index);
+}
+
+void ppc_hw_interrupt(CPUPPCState *env)
+{
+ int hdice;
+
+#if 0
+ qemu_log_mask(CPU_LOG_INT, "%s: %p pending %08x req %08x me %d ee %d\n",
+ __func__, env, env->pending_interrupts,
+ env->interrupt_request, (int)msr_me, (int)msr_ee);
+#endif
+ /* External reset */
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_RESET)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_RESET);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_RESET);
+ return;
+ }
+ /* Machine check exception */
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_MCK)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_MCK);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_MCHECK);
+ return;
+ }
+#if 0 /* TODO */
+ /* External debug exception */
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_DEBUG)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_DEBUG);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_DEBUG);
+ return;
+ }
+#endif
+ if (0) {
+ /* XXX: find a suitable condition to enable the hypervisor mode */
+ hdice = env->spr[SPR_LPCR] & 1;
+ } else {
+ hdice = 0;
+ }
+ if ((msr_ee != 0 || msr_hv == 0 || msr_pr != 0) && hdice != 0) {
+ /* Hypervisor decrementer exception */
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_HDECR)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_HDECR);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_HDECR);
+ return;
+ }
+ }
+ if (msr_ce != 0) {
+ /* External critical interrupt */
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_CEXT)) {
+ /* Taking a critical external interrupt does not clear the external
+ * critical interrupt status
+ */
+#if 0
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_CEXT);
+#endif
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_CRITICAL);
+ return;
+ }
+ }
+ if (msr_ee != 0) {
+ /* Watchdog timer on embedded PowerPC */
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_WDT)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_WDT);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_WDT);
+ return;
+ }
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_CDOORBELL)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_CDOORBELL);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_DOORCI);
+ return;
+ }
+ /* Fixed interval timer on embedded PowerPC */
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_FIT)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_FIT);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_FIT);
+ return;
+ }
+ /* Programmable interval timer on embedded PowerPC */
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_PIT)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_PIT);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_PIT);
+ return;
+ }
+ /* Decrementer exception */
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_DECR)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_DECR);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_DECR);
+ return;
+ }
+ /* External interrupt */
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_EXT)) {
+ /* Taking an external interrupt does not clear the external
+ * interrupt status
+ */
+#if 0
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_EXT);
+#endif
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_EXTERNAL);
+ return;
+ }
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_DOORBELL)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_DOORBELL);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_DOORI);
+ return;
+ }
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_PERFM)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_PERFM);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_PERFM);
+ return;
+ }
+ /* Thermal interrupt */
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_THERM)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_THERM);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_THERM);
+ return;
+ }
+ }
+}
+#endif /* !CONFIG_USER_ONLY */
+
+#if defined(DEBUG_OP)
+static void cpu_dump_rfi(target_ulong RA, target_ulong msr)
+{
+ qemu_log("Return from exception at " TARGET_FMT_lx " with flags "
+ TARGET_FMT_lx "\n", RA, msr);
+}
+#endif
+
/*****************************************************************************/
/* Exceptions processing helpers */
diff --git a/target-ppc/helper.c b/target-ppc/helper.c
index bcbc1ea..985de6f 100644
--- a/target-ppc/helper.c
+++ b/target-ppc/helper.c
@@ -28,7 +28,6 @@
//#define DEBUG_SLB
//#define DEBUG_SOFTWARE_TLB
//#define DUMP_PAGE_TABLES
-//#define DEBUG_EXCEPTIONS
//#define FLUSH_ALL_TLBS
#ifdef DEBUG_MMU
@@ -58,17 +57,6 @@
# define LOG_SLB(...) do { } while (0)
#endif
-#ifdef DEBUG_EXCEPTIONS
-# define LOG_EXCP(...) qemu_log(__VA_ARGS__)
-#else
-# define LOG_EXCP(...) do { } while (0)
-#endif
-
-/*****************************************************************************/
-/* PowerPC Hypercall emulation */
-
-void (*cpu_ppc_hypercall)(CPUPPCState *);
-
/*****************************************************************************/
/* PowerPC MMU emulation */
@@ -2469,738 +2457,6 @@ void ppc_store_msr(CPUPPCState *env, target_ulong value)
hreg_store_msr(env, value, 0);
}
-/*****************************************************************************/
-/* Exception processing */
-#if defined(CONFIG_USER_ONLY)
-void do_interrupt(CPUPPCState *env)
-{
- env->exception_index = POWERPC_EXCP_NONE;
- env->error_code = 0;
-}
-
-void ppc_hw_interrupt(CPUPPCState *env)
-{
- env->exception_index = POWERPC_EXCP_NONE;
- env->error_code = 0;
-}
-#else /* defined(CONFIG_USER_ONLY) */
-static inline void dump_syscall(CPUPPCState *env)
-{
- qemu_log_mask(CPU_LOG_INT, "syscall r0=%016" PRIx64 " r3=%016" PRIx64
- " r4=%016" PRIx64 " r5=%016" PRIx64 " r6=%016" PRIx64
- " nip=" TARGET_FMT_lx "\n",
- ppc_dump_gpr(env, 0), ppc_dump_gpr(env, 3),
- ppc_dump_gpr(env, 4), ppc_dump_gpr(env, 5),
- ppc_dump_gpr(env, 6), env->nip);
-}
-
-/* Note that this function should be greatly optimized
- * when called with a constant excp, from ppc_hw_interrupt
- */
-static inline void powerpc_excp(CPUPPCState *env, int excp_model, int excp)
-{
- target_ulong msr, new_msr, vector;
- int srr0, srr1, asrr0, asrr1;
- int lpes0, lpes1, lev;
-
- if (0) {
- /* XXX: find a suitable condition to enable the hypervisor mode */
- lpes0 = (env->spr[SPR_LPCR] >> 1) & 1;
- lpes1 = (env->spr[SPR_LPCR] >> 2) & 1;
- } else {
- /* Those values ensure we won't enter the hypervisor mode */
- lpes0 = 0;
- lpes1 = 1;
- }
-
- qemu_log_mask(CPU_LOG_INT, "Raise exception at " TARGET_FMT_lx
- " => %08x (%02x)\n", env->nip, excp, env->error_code);
-
- /* new srr1 value excluding must-be-zero bits */
- msr = env->msr & ~0x783f0000ULL;
-
- /* new interrupt handler msr */
- new_msr = env->msr & ((target_ulong)1 << MSR_ME);
-
- /* target registers */
- srr0 = SPR_SRR0;
- srr1 = SPR_SRR1;
- asrr0 = -1;
- asrr1 = -1;
-
- switch (excp) {
- case POWERPC_EXCP_NONE:
- /* Should never happen */
- return;
- case POWERPC_EXCP_CRITICAL: /* Critical input */
- switch (excp_model) {
- case POWERPC_EXCP_40x:
- srr0 = SPR_40x_SRR2;
- srr1 = SPR_40x_SRR3;
- break;
- case POWERPC_EXCP_BOOKE:
- srr0 = SPR_BOOKE_CSRR0;
- srr1 = SPR_BOOKE_CSRR1;
- break;
- case POWERPC_EXCP_G2:
- break;
- default:
- goto excp_invalid;
- }
- goto store_next;
- case POWERPC_EXCP_MCHECK: /* Machine check exception */
- if (msr_me == 0) {
- /* Machine check exception is not enabled.
- * Enter checkstop state.
- */
- if (qemu_log_enabled()) {
- qemu_log("Machine check while not allowed. "
- "Entering checkstop state\n");
- } else {
- fprintf(stderr, "Machine check while not allowed. "
- "Entering checkstop state\n");
- }
- env->halted = 1;
- env->interrupt_request |= CPU_INTERRUPT_EXITTB;
- }
- if (0) {
- /* XXX: find a suitable condition to enable the hypervisor mode */
- new_msr |= (target_ulong)MSR_HVB;
- }
-
- /* machine check exceptions don't have ME set */
- new_msr &= ~((target_ulong)1 << MSR_ME);
-
- /* XXX: should also have something loaded in DAR / DSISR */
- switch (excp_model) {
- case POWERPC_EXCP_40x:
- srr0 = SPR_40x_SRR2;
- srr1 = SPR_40x_SRR3;
- break;
- case POWERPC_EXCP_BOOKE:
- srr0 = SPR_BOOKE_MCSRR0;
- srr1 = SPR_BOOKE_MCSRR1;
- asrr0 = SPR_BOOKE_CSRR0;
- asrr1 = SPR_BOOKE_CSRR1;
- break;
- default:
- break;
- }
- goto store_next;
- case POWERPC_EXCP_DSI: /* Data storage exception */
- LOG_EXCP("DSI exception: DSISR=" TARGET_FMT_lx" DAR=" TARGET_FMT_lx
- "\n", env->spr[SPR_DSISR], env->spr[SPR_DAR]);
- if (lpes1 == 0) {
- new_msr |= (target_ulong)MSR_HVB;
- }
- goto store_next;
- case POWERPC_EXCP_ISI: /* Instruction storage exception */
- LOG_EXCP("ISI exception: msr=" TARGET_FMT_lx ", nip=" TARGET_FMT_lx
- "\n", msr, env->nip);
- if (lpes1 == 0) {
- new_msr |= (target_ulong)MSR_HVB;
- }
- msr |= env->error_code;
- goto store_next;
- case POWERPC_EXCP_EXTERNAL: /* External input */
- if (lpes0 == 1) {
- new_msr |= (target_ulong)MSR_HVB;
- }
- goto store_next;
- case POWERPC_EXCP_ALIGN: /* Alignment exception */
- if (lpes1 == 0) {
- new_msr |= (target_ulong)MSR_HVB;
- }
- /* XXX: this is false */
- /* Get rS/rD and rA from faulting opcode */
- env->spr[SPR_DSISR] |= (ldl_code((env->nip - 4)) & 0x03FF0000) >> 16;
- goto store_current;
- case POWERPC_EXCP_PROGRAM: /* Program exception */
- switch (env->error_code & ~0xF) {
- case POWERPC_EXCP_FP:
- if ((msr_fe0 == 0 && msr_fe1 == 0) || msr_fp == 0) {
- LOG_EXCP("Ignore floating point exception\n");
- env->exception_index = POWERPC_EXCP_NONE;
- env->error_code = 0;
- return;
- }
- if (lpes1 == 0) {
- new_msr |= (target_ulong)MSR_HVB;
- }
- msr |= 0x00100000;
- if (msr_fe0 == msr_fe1) {
- goto store_next;
- }
- msr |= 0x00010000;
- break;
- case POWERPC_EXCP_INVAL:
- LOG_EXCP("Invalid instruction at " TARGET_FMT_lx "\n", env->nip);
- if (lpes1 == 0) {
- new_msr |= (target_ulong)MSR_HVB;
- }
- msr |= 0x00080000;
- env->spr[SPR_BOOKE_ESR] = ESR_PIL;
- break;
- case POWERPC_EXCP_PRIV:
- if (lpes1 == 0) {
- new_msr |= (target_ulong)MSR_HVB;
- }
- msr |= 0x00040000;
- env->spr[SPR_BOOKE_ESR] = ESR_PPR;
- break;
- case POWERPC_EXCP_TRAP:
- if (lpes1 == 0) {
- new_msr |= (target_ulong)MSR_HVB;
- }
- msr |= 0x00020000;
- env->spr[SPR_BOOKE_ESR] = ESR_PTR;
- break;
- default:
- /* Should never occur */
- cpu_abort(env, "Invalid program exception %d. Aborting\n",
- env->error_code);
- break;
- }
- goto store_current;
- case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
- if (lpes1 == 0) {
- new_msr |= (target_ulong)MSR_HVB;
- }
- goto store_current;
- case POWERPC_EXCP_SYSCALL: /* System call exception */
- dump_syscall(env);
- lev = env->error_code;
- if ((lev == 1) && cpu_ppc_hypercall) {
- cpu_ppc_hypercall(env);
- return;
- }
- if (lev == 1 || (lpes0 == 0 && lpes1 == 0)) {
- new_msr |= (target_ulong)MSR_HVB;
- }
- goto store_next;
- case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
- goto store_current;
- case POWERPC_EXCP_DECR: /* Decrementer exception */
- if (lpes1 == 0) {
- new_msr |= (target_ulong)MSR_HVB;
- }
- goto store_next;
- case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
- /* FIT on 4xx */
- LOG_EXCP("FIT exception\n");
- goto store_next;
- case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
- LOG_EXCP("WDT exception\n");
- switch (excp_model) {
- case POWERPC_EXCP_BOOKE:
- srr0 = SPR_BOOKE_CSRR0;
- srr1 = SPR_BOOKE_CSRR1;
- break;
- default:
- break;
- }
- goto store_next;
- case POWERPC_EXCP_DTLB: /* Data TLB error */
- goto store_next;
- case POWERPC_EXCP_ITLB: /* Instruction TLB error */
- goto store_next;
- case POWERPC_EXCP_DEBUG: /* Debug interrupt */
- switch (excp_model) {
- case POWERPC_EXCP_BOOKE:
- srr0 = SPR_BOOKE_DSRR0;
- srr1 = SPR_BOOKE_DSRR1;
- asrr0 = SPR_BOOKE_CSRR0;
- asrr1 = SPR_BOOKE_CSRR1;
- break;
- default:
- break;
- }
- /* XXX: TODO */
- cpu_abort(env, "Debug exception is not implemented yet !\n");
- goto store_next;
- case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavailable */
- env->spr[SPR_BOOKE_ESR] = ESR_SPV;
- goto store_current;
- case POWERPC_EXCP_EFPDI: /* Embedded floating-point data interrupt */
- /* XXX: TODO */
- cpu_abort(env, "Embedded floating point data exception "
- "is not implemented yet !\n");
- env->spr[SPR_BOOKE_ESR] = ESR_SPV;
- goto store_next;
- case POWERPC_EXCP_EFPRI: /* Embedded floating-point round interrupt */
- /* XXX: TODO */
- cpu_abort(env, "Embedded floating point round exception "
- "is not implemented yet !\n");
- env->spr[SPR_BOOKE_ESR] = ESR_SPV;
- goto store_next;
- case POWERPC_EXCP_EPERFM: /* Embedded performance monitor interrupt */
- /* XXX: TODO */
- cpu_abort(env,
- "Performance counter exception is not implemented yet !\n");
- goto store_next;
- case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
- goto store_next;
- case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
- srr0 = SPR_BOOKE_CSRR0;
- srr1 = SPR_BOOKE_CSRR1;
- goto store_next;
- case POWERPC_EXCP_RESET: /* System reset exception */
- if (msr_pow) {
- /* indicate that we resumed from power save mode */
- msr |= 0x10000;
- } else {
- new_msr &= ~((target_ulong)1 << MSR_ME);
- }
-
- if (0) {
- /* XXX: find a suitable condition to enable the hypervisor mode */
- new_msr |= (target_ulong)MSR_HVB;
- }
- goto store_next;
- case POWERPC_EXCP_DSEG: /* Data segment exception */
- if (lpes1 == 0) {
- new_msr |= (target_ulong)MSR_HVB;
- }
- goto store_next;
- case POWERPC_EXCP_ISEG: /* Instruction segment exception */
- if (lpes1 == 0) {
- new_msr |= (target_ulong)MSR_HVB;
- }
- goto store_next;
- case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
- srr0 = SPR_HSRR0;
- srr1 = SPR_HSRR1;
- new_msr |= (target_ulong)MSR_HVB;
- new_msr |= env->msr & ((target_ulong)1 << MSR_RI);
- goto store_next;
- case POWERPC_EXCP_TRACE: /* Trace exception */
- if (lpes1 == 0) {
- new_msr |= (target_ulong)MSR_HVB;
- }
- goto store_next;
- case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
- srr0 = SPR_HSRR0;
- srr1 = SPR_HSRR1;
- new_msr |= (target_ulong)MSR_HVB;
- new_msr |= env->msr & ((target_ulong)1 << MSR_RI);
- goto store_next;
- case POWERPC_EXCP_HISI: /* Hypervisor instruction storage exception */
- srr0 = SPR_HSRR0;
- srr1 = SPR_HSRR1;
- new_msr |= (target_ulong)MSR_HVB;
- new_msr |= env->msr & ((target_ulong)1 << MSR_RI);
- goto store_next;
- case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
- srr0 = SPR_HSRR0;
- srr1 = SPR_HSRR1;
- new_msr |= (target_ulong)MSR_HVB;
- new_msr |= env->msr & ((target_ulong)1 << MSR_RI);
- goto store_next;
- case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment exception */
- srr0 = SPR_HSRR0;
- srr1 = SPR_HSRR1;
- new_msr |= (target_ulong)MSR_HVB;
- new_msr |= env->msr & ((target_ulong)1 << MSR_RI);
- goto store_next;
- case POWERPC_EXCP_VPU: /* Vector unavailable exception */
- if (lpes1 == 0) {
- new_msr |= (target_ulong)MSR_HVB;
- }
- goto store_current;
- case POWERPC_EXCP_PIT: /* Programmable interval timer interrupt */
- LOG_EXCP("PIT exception\n");
- goto store_next;
- case POWERPC_EXCP_IO: /* IO error exception */
- /* XXX: TODO */
- cpu_abort(env, "601 IO error exception is not implemented yet !\n");
- goto store_next;
- case POWERPC_EXCP_RUNM: /* Run mode exception */
- /* XXX: TODO */
- cpu_abort(env, "601 run mode exception is not implemented yet !\n");
- goto store_next;
- case POWERPC_EXCP_EMUL: /* Emulation trap exception */
- /* XXX: TODO */
- cpu_abort(env, "602 emulation trap exception "
- "is not implemented yet !\n");
- goto store_next;
- case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
- if (lpes1 == 0) { /* XXX: check this */
- new_msr |= (target_ulong)MSR_HVB;
- }
- switch (excp_model) {
- case POWERPC_EXCP_602:
- case POWERPC_EXCP_603:
- case POWERPC_EXCP_603E:
- case POWERPC_EXCP_G2:
- goto tlb_miss_tgpr;
- case POWERPC_EXCP_7x5:
- goto tlb_miss;
- case POWERPC_EXCP_74xx:
- goto tlb_miss_74xx;
- default:
- cpu_abort(env, "Invalid instruction TLB miss exception\n");
- break;
- }
- break;
- case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
- if (lpes1 == 0) { /* XXX: check this */
- new_msr |= (target_ulong)MSR_HVB;
- }
- switch (excp_model) {
- case POWERPC_EXCP_602:
- case POWERPC_EXCP_603:
- case POWERPC_EXCP_603E:
- case POWERPC_EXCP_G2:
- goto tlb_miss_tgpr;
- case POWERPC_EXCP_7x5:
- goto tlb_miss;
- case POWERPC_EXCP_74xx:
- goto tlb_miss_74xx;
- default:
- cpu_abort(env, "Invalid data load TLB miss exception\n");
- break;
- }
- break;
- case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
- if (lpes1 == 0) { /* XXX: check this */
- new_msr |= (target_ulong)MSR_HVB;
- }
- switch (excp_model) {
- case POWERPC_EXCP_602:
- case POWERPC_EXCP_603:
- case POWERPC_EXCP_603E:
- case POWERPC_EXCP_G2:
- tlb_miss_tgpr:
- /* Swap temporary saved registers with GPRs */
- if (!(new_msr & ((target_ulong)1 << MSR_TGPR))) {
- new_msr |= (target_ulong)1 << MSR_TGPR;
- hreg_swap_gpr_tgpr(env);
- }
- goto tlb_miss;
- case POWERPC_EXCP_7x5:
- tlb_miss:
-#if defined(DEBUG_SOFTWARE_TLB)
- if (qemu_log_enabled()) {
- const char *es;
- target_ulong *miss, *cmp;
- int en;
-
- if (excp == POWERPC_EXCP_IFTLB) {
- es = "I";
- en = 'I';
- miss = &env->spr[SPR_IMISS];
- cmp = &env->spr[SPR_ICMP];
- } else {
- if (excp == POWERPC_EXCP_DLTLB) {
- es = "DL";
- } else {
- es = "DS";
- }
- en = 'D';
- miss = &env->spr[SPR_DMISS];
- cmp = &env->spr[SPR_DCMP];
- }
- qemu_log("6xx %sTLB miss: %cM " TARGET_FMT_lx " %cC "
- TARGET_FMT_lx " H1 " TARGET_FMT_lx " H2 "
- TARGET_FMT_lx " %08x\n", es, en, *miss, en, *cmp,
- env->spr[SPR_HASH1], env->spr[SPR_HASH2],
- env->error_code);
- }
-#endif
- msr |= env->crf[0] << 28;
- msr |= env->error_code; /* key, D/I, S/L bits */
- /* Set way using a LRU mechanism */
- msr |= ((env->last_way + 1) & (env->nb_ways - 1)) << 17;
- break;
- case POWERPC_EXCP_74xx:
- tlb_miss_74xx:
-#if defined(DEBUG_SOFTWARE_TLB)
- if (qemu_log_enabled()) {
- const char *es;
- target_ulong *miss, *cmp;
- int en;
-
- if (excp == POWERPC_EXCP_IFTLB) {
- es = "I";
- en = 'I';
- miss = &env->spr[SPR_TLBMISS];
- cmp = &env->spr[SPR_PTEHI];
- } else {
- if (excp == POWERPC_EXCP_DLTLB) {
- es = "DL";
- } else {
- es = "DS";
- }
- en = 'D';
- miss = &env->spr[SPR_TLBMISS];
- cmp = &env->spr[SPR_PTEHI];
- }
- qemu_log("74xx %sTLB miss: %cM " TARGET_FMT_lx " %cC "
- TARGET_FMT_lx " %08x\n", es, en, *miss, en, *cmp,
- env->error_code);
- }
-#endif
- msr |= env->error_code; /* key bit */
- break;
- default:
- cpu_abort(env, "Invalid data store TLB miss exception\n");
- break;
- }
- goto store_next;
- case POWERPC_EXCP_FPA: /* Floating-point assist exception */
- /* XXX: TODO */
- cpu_abort(env, "Floating point assist exception "
- "is not implemented yet !\n");
- goto store_next;
- case POWERPC_EXCP_DABR: /* Data address breakpoint */
- /* XXX: TODO */
- cpu_abort(env, "DABR exception is not implemented yet !\n");
- goto store_next;
- case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
- /* XXX: TODO */
- cpu_abort(env, "IABR exception is not implemented yet !\n");
- goto store_next;
- case POWERPC_EXCP_SMI: /* System management interrupt */
- /* XXX: TODO */
- cpu_abort(env, "SMI exception is not implemented yet !\n");
- goto store_next;
- case POWERPC_EXCP_THERM: /* Thermal interrupt */
- /* XXX: TODO */
- cpu_abort(env, "Thermal management exception "
- "is not implemented yet !\n");
- goto store_next;
- case POWERPC_EXCP_PERFM: /* Embedded performance monitor interrupt */
- if (lpes1 == 0) {
- new_msr |= (target_ulong)MSR_HVB;
- }
- /* XXX: TODO */
- cpu_abort(env,
- "Performance counter exception is not implemented yet !\n");
- goto store_next;
- case POWERPC_EXCP_VPUA: /* Vector assist exception */
- /* XXX: TODO */
- cpu_abort(env, "VPU assist exception is not implemented yet !\n");
- goto store_next;
- case POWERPC_EXCP_SOFTP: /* Soft patch exception */
- /* XXX: TODO */
- cpu_abort(env,
- "970 soft-patch exception is not implemented yet !\n");
- goto store_next;
- case POWERPC_EXCP_MAINT: /* Maintenance exception */
- /* XXX: TODO */
- cpu_abort(env,
- "970 maintenance exception is not implemented yet !\n");
- goto store_next;
- case POWERPC_EXCP_MEXTBR: /* Maskable external breakpoint */
- /* XXX: TODO */
- cpu_abort(env, "Maskable external exception "
- "is not implemented yet !\n");
- goto store_next;
- case POWERPC_EXCP_NMEXTBR: /* Non maskable external breakpoint */
- /* XXX: TODO */
- cpu_abort(env, "Non maskable external exception "
- "is not implemented yet !\n");
- goto store_next;
- default:
- excp_invalid:
- cpu_abort(env, "Invalid PowerPC exception %d. Aborting\n", excp);
- break;
- store_current:
- /* save current instruction location */
- env->spr[srr0] = env->nip - 4;
- break;
- store_next:
- /* save next instruction location */
- env->spr[srr0] = env->nip;
- break;
- }
- /* Save MSR */
- env->spr[srr1] = msr;
- /* If any alternate SRR register are defined, duplicate saved values */
- if (asrr0 != -1) {
- env->spr[asrr0] = env->spr[srr0];
- }
- if (asrr1 != -1) {
- env->spr[asrr1] = env->spr[srr1];
- }
- /* If we disactivated any translation, flush TLBs */
- if (msr & ((1 << MSR_IR) | (1 << MSR_DR))) {
- tlb_flush(env, 1);
- }
-
- if (msr_ile) {
- new_msr |= (target_ulong)1 << MSR_LE;
- }
-
- /* Jump to handler */
- vector = env->excp_vectors[excp];
- if (vector == (target_ulong)-1ULL) {
- cpu_abort(env, "Raised an exception without defined vector %d\n",
- excp);
- }
- vector |= env->excp_prefix;
-#if defined(TARGET_PPC64)
- if (excp_model == POWERPC_EXCP_BOOKE) {
- if (!msr_icm) {
- vector = (uint32_t)vector;
- } else {
- new_msr |= (target_ulong)1 << MSR_CM;
- }
- } else {
- if (!msr_isf && !(env->mmu_model & POWERPC_MMU_64)) {
- vector = (uint32_t)vector;
- } else {
- new_msr |= (target_ulong)1 << MSR_SF;
- }
- }
-#endif
- /* XXX: we don't use hreg_store_msr here as already have treated
- * any special case that could occur. Just store MSR and update hflags
- */
- env->msr = new_msr & env->msr_mask;
- hreg_compute_hflags(env);
- env->nip = vector;
- /* Reset exception state */
- env->exception_index = POWERPC_EXCP_NONE;
- env->error_code = 0;
-
- if ((env->mmu_model == POWERPC_MMU_BOOKE) ||
- (env->mmu_model == POWERPC_MMU_BOOKE206)) {
- /* XXX: The BookE changes address space when switching modes,
- we should probably implement that as different MMU indexes,
- but for the moment we do it the slow way and flush all. */
- tlb_flush(env, 1);
- }
-}
-
-void do_interrupt(CPUPPCState *env)
-{
- powerpc_excp(env, env->excp_model, env->exception_index);
-}
-
-void ppc_hw_interrupt(CPUPPCState *env)
-{
- int hdice;
-
-#if 0
- qemu_log_mask(CPU_LOG_INT, "%s: %p pending %08x req %08x me %d ee %d\n",
- __func__, env, env->pending_interrupts,
- env->interrupt_request, (int)msr_me, (int)msr_ee);
-#endif
- /* External reset */
- if (env->pending_interrupts & (1 << PPC_INTERRUPT_RESET)) {
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_RESET);
- powerpc_excp(env, env->excp_model, POWERPC_EXCP_RESET);
- return;
- }
- /* Machine check exception */
- if (env->pending_interrupts & (1 << PPC_INTERRUPT_MCK)) {
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_MCK);
- powerpc_excp(env, env->excp_model, POWERPC_EXCP_MCHECK);
- return;
- }
-#if 0 /* TODO */
- /* External debug exception */
- if (env->pending_interrupts & (1 << PPC_INTERRUPT_DEBUG)) {
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_DEBUG);
- powerpc_excp(env, env->excp_model, POWERPC_EXCP_DEBUG);
- return;
- }
-#endif
- if (0) {
- /* XXX: find a suitable condition to enable the hypervisor mode */
- hdice = env->spr[SPR_LPCR] & 1;
- } else {
- hdice = 0;
- }
- if ((msr_ee != 0 || msr_hv == 0 || msr_pr != 0) && hdice != 0) {
- /* Hypervisor decrementer exception */
- if (env->pending_interrupts & (1 << PPC_INTERRUPT_HDECR)) {
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_HDECR);
- powerpc_excp(env, env->excp_model, POWERPC_EXCP_HDECR);
- return;
- }
- }
- if (msr_ce != 0) {
- /* External critical interrupt */
- if (env->pending_interrupts & (1 << PPC_INTERRUPT_CEXT)) {
- /* Taking a critical external interrupt does not clear the external
- * critical interrupt status
- */
-#if 0
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_CEXT);
-#endif
- powerpc_excp(env, env->excp_model, POWERPC_EXCP_CRITICAL);
- return;
- }
- }
- if (msr_ee != 0) {
- /* Watchdog timer on embedded PowerPC */
- if (env->pending_interrupts & (1 << PPC_INTERRUPT_WDT)) {
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_WDT);
- powerpc_excp(env, env->excp_model, POWERPC_EXCP_WDT);
- return;
- }
- if (env->pending_interrupts & (1 << PPC_INTERRUPT_CDOORBELL)) {
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_CDOORBELL);
- powerpc_excp(env, env->excp_model, POWERPC_EXCP_DOORCI);
- return;
- }
- /* Fixed interval timer on embedded PowerPC */
- if (env->pending_interrupts & (1 << PPC_INTERRUPT_FIT)) {
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_FIT);
- powerpc_excp(env, env->excp_model, POWERPC_EXCP_FIT);
- return;
- }
- /* Programmable interval timer on embedded PowerPC */
- if (env->pending_interrupts & (1 << PPC_INTERRUPT_PIT)) {
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_PIT);
- powerpc_excp(env, env->excp_model, POWERPC_EXCP_PIT);
- return;
- }
- /* Decrementer exception */
- if (env->pending_interrupts & (1 << PPC_INTERRUPT_DECR)) {
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_DECR);
- powerpc_excp(env, env->excp_model, POWERPC_EXCP_DECR);
- return;
- }
- /* External interrupt */
- if (env->pending_interrupts & (1 << PPC_INTERRUPT_EXT)) {
- /* Taking an external interrupt does not clear the external
- * interrupt status
- */
-#if 0
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_EXT);
-#endif
- powerpc_excp(env, env->excp_model, POWERPC_EXCP_EXTERNAL);
- return;
- }
- if (env->pending_interrupts & (1 << PPC_INTERRUPT_DOORBELL)) {
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_DOORBELL);
- powerpc_excp(env, env->excp_model, POWERPC_EXCP_DOORI);
- return;
- }
- if (env->pending_interrupts & (1 << PPC_INTERRUPT_PERFM)) {
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_PERFM);
- powerpc_excp(env, env->excp_model, POWERPC_EXCP_PERFM);
- return;
- }
- /* Thermal interrupt */
- if (env->pending_interrupts & (1 << PPC_INTERRUPT_THERM)) {
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_THERM);
- powerpc_excp(env, env->excp_model, POWERPC_EXCP_THERM);
- return;
- }
- }
-}
-#endif /* !CONFIG_USER_ONLY */
-
-void cpu_dump_rfi(target_ulong RA, target_ulong msr)
-{
- qemu_log("Return from exception at " TARGET_FMT_lx " with flags "
- TARGET_FMT_lx "\n", RA, msr);
-}
-
void cpu_state_reset(CPUPPCState *env)
{
cpu_reset(ENV_GET_CPU(env));
--
1.7.10
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