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dpavlin |
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/* |
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* Copyright (C) 2005 Anders Gavare. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* |
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* $Id: cpu_dyntrans.c,v 1.19 2005/10/07 22:10:51 debug Exp $ |
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* |
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* Common dyntrans routines. Included from cpu_*.c. |
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*/ |
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#ifdef DYNTRANS_CPU_RUN_INSTR |
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/* |
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* XXX_cpu_run_instr(): |
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* |
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* Execute one or more instructions on a specific CPU, using dyntrans. |
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* |
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* Return value is the number of instructions executed during this call, |
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* 0 if no instructions were executed. |
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*/ |
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int DYNTRANS_CPU_RUN_INSTR(struct emul *emul, struct cpu *cpu) |
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{ |
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#ifdef MODE32 |
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uint32_t cached_pc; |
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#else |
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uint64_t cached_pc; |
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#endif |
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int low_pc, n_instrs; |
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#ifdef DYNTRANS_DUALMODE_32 |
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if (cpu->is_32bit) |
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DYNTRANS_PC_TO_POINTERS32(cpu); |
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else |
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#endif |
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DYNTRANS_PC_TO_POINTERS(cpu); |
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/* |
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* Interrupt assertion? (This is _below_ the initial PC to pointer |
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* conversion; if the conversion caused an exception of some kind |
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* then interrupts are probably disabled, and the exception will get |
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* priority over device interrupts.) |
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*/ |
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#ifdef DYNTRANS_ARM |
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if (cpu->cd.arm.irq_asserted && !(cpu->cd.arm.cpsr & ARM_FLAG_I)) |
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arm_exception(cpu, ARM_EXCEPTION_IRQ); |
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#endif |
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cached_pc = cpu->pc; |
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cpu->n_translated_instrs = 0; |
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cpu->running_translated = 1; |
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if (single_step || cpu->machine->instruction_trace) { |
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/* |
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* Single-step: |
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*/ |
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struct DYNTRANS_IC *ic = cpu->cd.DYNTRANS_ARCH.next_ic |
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#ifndef DYNTRANS_VARIABLE_INSTRUCTION_LENGTH |
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++ |
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#endif |
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; |
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if (cpu->machine->instruction_trace) { |
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#ifdef DYNTRANS_X86 |
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unsigned char instr[17]; |
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cpu->cd.x86.cursegment = X86_S_CS; |
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cpu->cd.x86.seg_override = 0; |
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#else |
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#ifdef DYNTRANS_M68K |
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unsigned char instr[16]; /* TODO: 16? */ |
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#else |
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unsigned char instr[4]; /* General case... */ |
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#endif |
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#endif |
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if (!cpu->memory_rw(cpu, cpu->mem, cached_pc, &instr[0], |
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sizeof(instr), MEM_READ, CACHE_INSTRUCTION)) { |
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fatal("XXX_cpu_run_instr(): could not read " |
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"the instruction\n"); |
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} else |
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cpu_disassemble_instr(cpu->machine, cpu, |
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instr, 1, 0, 0); |
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} |
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/* When single-stepping, multiple instruction calls cannot |
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be combined into one. This clears all translations: */ |
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if (cpu->cd.DYNTRANS_ARCH.cur_physpage->flags & COMBINATIONS) { |
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int i; |
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for (i=0; i<DYNTRANS_IC_ENTRIES_PER_PAGE; i++) |
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cpu->cd.DYNTRANS_ARCH.cur_physpage->ics[i].f = |
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#ifdef DYNTRANS_DUALMODE_32 |
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cpu->is_32bit? |
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instr32(to_be_translated) : |
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#endif |
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instr(to_be_translated); |
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fatal("[ Note: The translation of physical page 0x%llx" |
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" contained combinations of instructions; these " |
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"are now flushed because we are single-stepping." |
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" ]\n", (long long)cpu->cd.DYNTRANS_ARCH. |
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cur_physpage->physaddr); |
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cpu->cd.DYNTRANS_ARCH.cur_physpage->flags &= |
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~(COMBINATIONS | TRANSLATIONS); |
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} |
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/* Execute just one instruction: */ |
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ic->f(cpu, ic); |
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n_instrs = 1; |
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} else { |
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/* Execute multiple instructions: */ |
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n_instrs = 0; |
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for (;;) { |
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struct DYNTRANS_IC *ic; |
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#ifdef DYNTRANS_VARIABLE_INSTRUCTION_LENGTH |
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#define I ic = cpu->cd.DYNTRANS_ARCH.next_ic; ic->f(cpu, ic); |
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#else |
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#define I ic = cpu->cd.DYNTRANS_ARCH.next_ic ++; ic->f(cpu, ic); |
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#endif |
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I; I; I; I; I; I; I; I; I; I; |
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I; I; I; I; I; I; I; I; I; I; |
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I; I; I; I; I; I; I; I; I; I; |
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I; I; I; I; I; I; I; I; I; I; |
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I; I; I; I; I; I; I; I; I; I; |
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I; I; I; I; I; I; I; I; I; I; |
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I; I; I; I; I; I; I; I; I; I; |
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I; I; I; I; I; I; I; I; I; I; |
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I; I; I; I; I; I; I; I; I; I; |
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I; I; I; I; I; I; I; I; I; I; |
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I; I; I; I; I; I; I; I; I; I; |
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I; I; I; I; I; I; I; I; I; I; |
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n_instrs += 120; |
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if (!cpu->running_translated || |
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n_instrs + cpu->n_translated_instrs >= 16384) |
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break; |
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} |
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} |
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/* |
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* Update the program counter and return the correct number of |
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* executed instructions: |
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*/ |
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low_pc = ((size_t)cpu->cd.DYNTRANS_ARCH.next_ic - (size_t) |
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cpu->cd.DYNTRANS_ARCH.cur_ic_page) / sizeof(struct DYNTRANS_IC); |
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if (low_pc >= 0 && low_pc < DYNTRANS_IC_ENTRIES_PER_PAGE) { |
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#ifdef DYNTRANS_ARM |
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cpu->cd.arm.r[ARM_PC] &= ~((DYNTRANS_IC_ENTRIES_PER_PAGE-1)<<2); |
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cpu->cd.arm.r[ARM_PC] += (low_pc << 2); |
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cpu->pc = cpu->cd.arm.r[ARM_PC]; |
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#else |
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cpu->pc &= ~((DYNTRANS_IC_ENTRIES_PER_PAGE-1) << |
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DYNTRANS_INSTR_ALIGNMENT_SHIFT); |
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cpu->pc += (low_pc << DYNTRANS_INSTR_ALIGNMENT_SHIFT); |
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#endif |
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} else if (low_pc == DYNTRANS_IC_ENTRIES_PER_PAGE) { |
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/* Switch to next page: */ |
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#ifdef DYNTRANS_ARM |
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cpu->cd.arm.r[ARM_PC] &= ~((ARM_IC_ENTRIES_PER_PAGE-1) << 2); |
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cpu->cd.arm.r[ARM_PC] += (ARM_IC_ENTRIES_PER_PAGE << 2); |
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cpu->pc = cpu->cd.arm.r[ARM_PC]; |
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#else |
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cpu->pc &= ~((DYNTRANS_IC_ENTRIES_PER_PAGE-1) << |
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DYNTRANS_INSTR_ALIGNMENT_SHIFT); |
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cpu->pc += (DYNTRANS_IC_ENTRIES_PER_PAGE << |
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DYNTRANS_INSTR_ALIGNMENT_SHIFT); |
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#endif |
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} else { |
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/* debug("debug: Outside a page (This is actually ok)\n"); */ |
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} |
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return n_instrs + cpu->n_translated_instrs; |
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} |
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#endif /* DYNTRANS_CPU_RUN_INSTR */ |
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#ifdef DYNTRANS_FUNCTION_TRACE |
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/* |
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* XXX_cpu_functioncall_trace(): |
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* |
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* Without this function, the main trace tree function prints something |
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* like <f()> or <0x1234()> on a function call. It is up to this |
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* function to print the arguments passed. |
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*/ |
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void DYNTRANS_FUNCTION_TRACE(struct cpu *cpu, uint64_t f, int n_args) |
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{ |
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char strbuf[50]; |
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char *symbol; |
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uint64_t ot; |
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int x, print_dots = 1, n_args_to_print = |
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#ifdef DYNTRANS_ALPHA |
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#else |
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#ifdef DYNTRANS_SH |
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8 |
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#else |
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4 /* Default value for most archs */ |
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#endif |
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#endif |
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; |
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if (n_args >= 0 && n_args <= n_args_to_print) { |
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print_dots = 0; |
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n_args_to_print = n_args; |
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} |
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/* |
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* TODO: The type of each argument should be taken from the symbol |
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* table, in some way. |
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* |
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* The code here does a kind of "heuristic guess" regarding what the |
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* argument values might mean. Sometimes the output looks weird, but |
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* usually it looks good enough. |
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* |
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* Print ".." afterwards to show that there might be more arguments |
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* than were passed in register. |
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*/ |
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for (x=0; x<n_args_to_print; x++) { |
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int64_t d; |
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#ifdef DYNTRANS_X86 |
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d = 0; /* TODO */ |
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#else |
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/* Args in registers: */ |
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d = cpu->cd.DYNTRANS_ARCH. |
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#ifdef DYNTRANS_ALPHA |
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r[ALPHA_A0 |
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#endif |
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#ifdef DYNTRANS_ARM |
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r[0 |
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#endif |
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#ifdef DYNTRANS_AVR |
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/* TODO: 24,25 = first register, but then |
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they go downwards, ie. 22,23 and so on */ |
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r[24 |
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#endif |
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#ifdef DYNTRANS_HPPA |
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r[0 /* TODO */ |
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#endif |
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#ifdef DYNTRANS_I960 |
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r[0 /* TODO */ |
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#endif |
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#ifdef DYNTRANS_IA64 |
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r[0 /* TODO */ |
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#endif |
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#ifdef DYNTRANS_M68K |
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d[0 /* TODO */ |
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#endif |
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#ifdef DYNTRANS_MIPS |
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gpr[MIPS_GPR_A0 |
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#endif |
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#ifdef DYNTRANS_PPC |
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gpr[3 |
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#endif |
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#ifdef DYNTRANS_SH |
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r[2 |
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#endif |
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#ifdef DYNTRANS_SPARC |
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r_i[0 |
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#endif |
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+ x]; |
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#endif |
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symbol = get_symbol_name(&cpu->machine->symbol_context, d, &ot); |
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if (d > -256 && d < 256) |
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fatal("%i", (int)d); |
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else if (memory_points_to_string(cpu, cpu->mem, d, 1)) |
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fatal("\"%s\"", memory_conv_to_string(cpu, |
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cpu->mem, d, strbuf, sizeof(strbuf))); |
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else if (symbol != NULL && ot == 0) |
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fatal("&%s", symbol); |
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else { |
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if (cpu->is_32bit) |
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fatal("0x%x", (int)d); |
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else |
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fatal("0x%llx", (long long)d); |
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} |
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if (x < n_args_to_print - 1) |
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fatal(","); |
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} |
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if (print_dots) |
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fatal(",.."); |
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} |
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#endif |
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#ifdef DYNTRANS_TC_ALLOCATE_DEFAULT_PAGE |
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/* forward declaration of to_be_translated and end_of_page: */ |
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static void instr(to_be_translated)(struct cpu *, struct DYNTRANS_IC *); |
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static void instr(end_of_page)(struct cpu *,struct DYNTRANS_IC *); |
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#ifdef DYNTRANS_DUALMODE_32 |
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static void instr32(to_be_translated)(struct cpu *, struct DYNTRANS_IC *); |
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static void instr32(end_of_page)(struct cpu *,struct DYNTRANS_IC *); |
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#endif |
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/* |
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* XXX_tc_allocate_default_page(): |
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* |
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* Create a default page (with just pointers to instr(to_be_translated) |
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* at cpu->translation_cache_cur_ofs. |
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*/ |
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static void DYNTRANS_TC_ALLOCATE_DEFAULT_PAGE(struct cpu *cpu, |
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uint64_t physaddr) |
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{ |
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struct DYNTRANS_TC_PHYSPAGE *ppp; |
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int i; |
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/* Create the physpage header: */ |
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ppp = (struct DYNTRANS_TC_PHYSPAGE *)(cpu->translation_cache |
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+ cpu->translation_cache_cur_ofs); |
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ppp->next_ofs = 0; |
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ppp->physaddr = physaddr; |
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/* TODO: Is this faster than copying an entire template page? */ |
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for (i=0; i<DYNTRANS_IC_ENTRIES_PER_PAGE; i++) |
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ppp->ics[i].f = |
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#ifdef DYNTRANS_DUALMODE_32 |
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cpu->is_32bit? instr32(to_be_translated) : |
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#endif |
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instr(to_be_translated); |
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ppp->ics[DYNTRANS_IC_ENTRIES_PER_PAGE].f = |
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#ifdef DYNTRANS_DUALMODE_32 |
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cpu->is_32bit? instr32(end_of_page) : |
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#endif |
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instr(end_of_page); |
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cpu->translation_cache_cur_ofs += sizeof(struct DYNTRANS_TC_PHYSPAGE); |
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} |
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#endif /* DYNTRANS_TC_ALLOCATE_DEFAULT_PAGE */ |
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#ifdef DYNTRANS_PC_TO_POINTERS_FUNC |
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/* |
363 |
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* XXX_pc_to_pointers_generic(): |
364 |
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* |
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* Generic case. See DYNTRANS_PC_TO_POINTERS_FUNC below. |
366 |
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*/ |
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void DYNTRANS_PC_TO_POINTERS_GENERIC(struct cpu *cpu) |
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{ |
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#ifdef MODE32 |
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uint32_t |
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#else |
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uint64_t |
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#endif |
374 |
|
|
cached_pc, physaddr; |
375 |
|
|
uint32_t physpage_ofs; |
376 |
|
|
int ok, pagenr, table_index; |
377 |
|
|
uint32_t *physpage_entryp; |
378 |
|
|
struct DYNTRANS_TC_PHYSPAGE *ppp; |
379 |
|
|
|
380 |
|
|
#ifdef MODE32 |
381 |
|
|
int index; |
382 |
|
|
cached_pc = cpu->pc; |
383 |
|
|
index = cached_pc >> 12; |
384 |
|
|
#else |
385 |
|
|
#ifdef DYNTRANS_ALPHA |
386 |
|
|
uint32_t a, b; |
387 |
|
|
int kernel = 0; |
388 |
|
|
struct alpha_vph_page *vph_p; |
389 |
|
|
cached_pc = cpu->pc; |
390 |
|
|
a = (cached_pc >> ALPHA_LEVEL0_SHIFT) & (ALPHA_LEVEL0 - 1); |
391 |
|
|
b = (cached_pc >> ALPHA_LEVEL1_SHIFT) & (ALPHA_LEVEL1 - 1); |
392 |
|
|
if ((cached_pc >> ALPHA_TOPSHIFT) == ALPHA_TOP_KERNEL) { |
393 |
|
|
vph_p = cpu->cd.alpha.vph_table0_kernel[a]; |
394 |
|
|
kernel = 1; |
395 |
|
|
} else |
396 |
|
|
vph_p = cpu->cd.alpha.vph_table0[a]; |
397 |
|
|
#else |
398 |
|
|
#ifdef DYNTRANS_IA64 |
399 |
|
|
fatal("IA64 todo\n"); |
400 |
|
|
#else |
401 |
|
|
fatal("Neither alpha, ia64, nor 32-bit? 3\n"); |
402 |
|
|
exit(1); |
403 |
|
|
#endif |
404 |
|
|
#endif |
405 |
|
|
#endif |
406 |
|
|
|
407 |
|
|
/* Virtual to physical address translation: */ |
408 |
|
|
ok = 0; |
409 |
|
|
#ifdef MODE32 |
410 |
|
|
if (cpu->cd.DYNTRANS_ARCH.host_load[index] != NULL) { |
411 |
|
|
physaddr = cpu->cd.DYNTRANS_ARCH.phys_addr[index]; |
412 |
|
|
ok = 1; |
413 |
|
|
} |
414 |
|
|
#else |
415 |
|
|
#ifdef DYNTRANS_ALPHA |
416 |
|
|
if (vph_p->host_load[b] != NULL) { |
417 |
|
|
physaddr = vph_p->phys_addr[b]; |
418 |
|
|
ok = 1; |
419 |
|
|
} |
420 |
|
|
#else |
421 |
|
|
#ifdef DYNTRANS_IA64 |
422 |
|
|
fatal("IA64 todo\n"); |
423 |
|
|
#else |
424 |
|
|
fatal("Neither alpha, ia64, nor 32-bit? 4\n"); |
425 |
|
|
exit(1); |
426 |
|
|
#endif |
427 |
|
|
#endif |
428 |
|
|
#endif |
429 |
|
|
|
430 |
|
|
if (!ok) { |
431 |
|
|
uint64_t paddr; |
432 |
|
|
if (cpu->translate_address != NULL) |
433 |
|
|
ok = cpu->translate_address(cpu, cached_pc, |
434 |
|
|
&paddr, FLAG_INSTR); |
435 |
|
|
else { |
436 |
|
|
paddr = cached_pc; |
437 |
|
|
ok = 1; |
438 |
|
|
} |
439 |
|
|
if (!ok) { |
440 |
|
|
/* |
441 |
|
|
fatal("TODO: instruction vaddr=>paddr translation" |
442 |
|
|
" failed. vaddr=0x%llx\n", (long long)cached_pc); |
443 |
|
|
fatal("!! cpu->pc=0x%llx arm_pc=0x%x\n", (long long)cpu->pc, |
444 |
|
|
cpu->cd.arm.r[ARM_PC]); |
445 |
|
|
*/ |
446 |
|
|
ok = cpu->translate_address(cpu, cpu->pc, &paddr, |
447 |
|
|
FLAG_INSTR); |
448 |
|
|
/* |
449 |
|
|
printf("EXCEPTION HANDLER: vaddr = 0x%x ==> paddr = 0x%x\n", |
450 |
|
|
(int)cpu->pc, (int)paddr); |
451 |
|
|
fatal("!? cpu->pc=0x%llx arm_pc=0x%x\n", (long long)cpu->pc, |
452 |
|
|
cpu->cd.arm.r[ARM_PC]); |
453 |
|
|
*/ |
454 |
|
|
if (!ok) { |
455 |
|
|
fatal("FATAL: could not find physical" |
456 |
|
|
" address of the exception handler?"); |
457 |
|
|
exit(1); |
458 |
|
|
} |
459 |
|
|
} |
460 |
|
|
cached_pc = cpu->pc; |
461 |
|
|
physaddr = paddr; |
462 |
|
|
} |
463 |
|
|
|
464 |
|
|
if (cpu->translation_cache_cur_ofs >= DYNTRANS_CACHE_SIZE) |
465 |
|
|
cpu_create_or_reset_tc(cpu); |
466 |
|
|
|
467 |
|
|
pagenr = DYNTRANS_ADDR_TO_PAGENR(physaddr); |
468 |
|
|
table_index = PAGENR_TO_TABLE_INDEX(pagenr); |
469 |
|
|
|
470 |
|
|
physpage_entryp = &(((uint32_t *)cpu->translation_cache)[table_index]); |
471 |
|
|
physpage_ofs = *physpage_entryp; |
472 |
|
|
ppp = NULL; |
473 |
|
|
|
474 |
|
|
/* Traverse the physical page chain: */ |
475 |
|
|
while (physpage_ofs != 0) { |
476 |
|
|
ppp = (struct DYNTRANS_TC_PHYSPAGE *)(cpu->translation_cache |
477 |
|
|
+ physpage_ofs); |
478 |
|
|
/* If we found the page in the cache, then we're done: */ |
479 |
|
|
if (ppp->physaddr == physaddr) |
480 |
|
|
break; |
481 |
|
|
/* Try the next page in the chain: */ |
482 |
|
|
physpage_ofs = ppp->next_ofs; |
483 |
|
|
} |
484 |
|
|
|
485 |
|
|
/* If the offset is 0 (or ppp is NULL), then we need to create a |
486 |
|
|
new "default" empty translation page. */ |
487 |
|
|
|
488 |
|
|
if (ppp == NULL) { |
489 |
|
|
/* fatal("CREATING page %lli (physaddr 0x%llx), table index " |
490 |
|
|
"%i\n", (long long)pagenr, (long long)physaddr, |
491 |
|
|
(int)table_index); */ |
492 |
|
|
*physpage_entryp = physpage_ofs = |
493 |
|
|
cpu->translation_cache_cur_ofs; |
494 |
|
|
|
495 |
|
|
/* Allocate a default page, with to_be_translated entries: */ |
496 |
|
|
DYNTRANS_TC_ALLOCATE(cpu, physaddr); |
497 |
|
|
|
498 |
|
|
ppp = (struct DYNTRANS_TC_PHYSPAGE *)(cpu->translation_cache |
499 |
|
|
+ physpage_ofs); |
500 |
|
|
} |
501 |
|
|
|
502 |
|
|
#ifdef MODE32 |
503 |
|
|
if (cpu->cd.DYNTRANS_ARCH.host_load[index] != NULL) |
504 |
|
|
cpu->cd.DYNTRANS_ARCH.phys_page[index] = ppp; |
505 |
|
|
#endif |
506 |
|
|
|
507 |
|
|
#ifdef DYNTRANS_ALPHA |
508 |
|
|
if (vph_p->host_load[b] != NULL) |
509 |
|
|
vph_p->phys_page[b] = ppp; |
510 |
|
|
#endif |
511 |
|
|
|
512 |
|
|
cpu->invalidate_translation_caches_paddr(cpu, physaddr, |
513 |
|
|
JUST_MARK_AS_NON_WRITABLE); |
514 |
|
|
|
515 |
|
|
cpu->cd.DYNTRANS_ARCH.cur_physpage = ppp; |
516 |
|
|
cpu->cd.DYNTRANS_ARCH.cur_ic_page = &ppp->ics[0]; |
517 |
|
|
cpu->cd.DYNTRANS_ARCH.next_ic = cpu->cd.DYNTRANS_ARCH.cur_ic_page + |
518 |
|
|
DYNTRANS_PC_TO_IC_ENTRY(cached_pc); |
519 |
|
|
|
520 |
|
|
/* printf("cached_pc=0x%016llx pagenr=%lli table_index=%lli, " |
521 |
|
|
"physpage_ofs=0x%016llx\n", (long long)cached_pc, (long long)pagenr, |
522 |
|
|
(long long)table_index, (long long)physpage_ofs); */ |
523 |
|
|
} |
524 |
|
|
|
525 |
|
|
|
526 |
|
|
/* |
527 |
|
|
* XXX_pc_to_pointers(): |
528 |
|
|
* |
529 |
|
|
* This function uses the current program counter (a virtual address) to |
530 |
|
|
* find out which physical translation page to use, and then sets the current |
531 |
|
|
* translation page pointers to that page. |
532 |
|
|
* |
533 |
|
|
* If there was no translation page for that physical page, then an empty |
534 |
|
|
* one is created. |
535 |
|
|
* |
536 |
|
|
* NOTE: This is the quick lookup version. See |
537 |
|
|
* DYNTRANS_PC_TO_POINTERS_GENERIC above for the generic case. |
538 |
|
|
*/ |
539 |
|
|
void DYNTRANS_PC_TO_POINTERS_FUNC(struct cpu *cpu) |
540 |
|
|
{ |
541 |
|
|
#ifdef MODE32 |
542 |
|
|
uint32_t |
543 |
|
|
#else |
544 |
|
|
uint64_t |
545 |
|
|
#endif |
546 |
|
|
cached_pc; |
547 |
|
|
struct DYNTRANS_TC_PHYSPAGE *ppp; |
548 |
|
|
|
549 |
|
|
#ifdef MODE32 |
550 |
|
|
int index; |
551 |
|
|
cached_pc = cpu->pc; |
552 |
|
|
index = cached_pc >> 12; |
553 |
|
|
ppp = cpu->cd.DYNTRANS_ARCH.phys_page[index]; |
554 |
|
|
if (ppp != NULL) |
555 |
|
|
goto have_it; |
556 |
|
|
#else |
557 |
|
|
#ifdef DYNTRANS_ALPHA |
558 |
|
|
uint32_t a, b; |
559 |
|
|
int kernel = 0; |
560 |
|
|
struct alpha_vph_page *vph_p; |
561 |
|
|
cached_pc = cpu->pc; |
562 |
|
|
a = (cached_pc >> ALPHA_LEVEL0_SHIFT) & (ALPHA_LEVEL0 - 1); |
563 |
|
|
b = (cached_pc >> ALPHA_LEVEL1_SHIFT) & (ALPHA_LEVEL1 - 1); |
564 |
|
|
if ((cached_pc >> ALPHA_TOPSHIFT) == ALPHA_TOP_KERNEL) { |
565 |
|
|
vph_p = cpu->cd.alpha.vph_table0_kernel[a]; |
566 |
|
|
kernel = 1; |
567 |
|
|
} else |
568 |
|
|
vph_p = cpu->cd.alpha.vph_table0[a]; |
569 |
|
|
if (vph_p != cpu->cd.alpha.vph_default_page) { |
570 |
|
|
ppp = vph_p->phys_page[b]; |
571 |
|
|
if (ppp != NULL) |
572 |
|
|
goto have_it; |
573 |
|
|
} |
574 |
|
|
#else |
575 |
|
|
#ifdef DYNTRANS_IA64 |
576 |
|
|
fatal("IA64 todo\n"); |
577 |
|
|
#else |
578 |
|
|
fatal("Neither alpha, ia64, nor 32-bit? 1\n"); |
579 |
|
|
{ char *p = (char *) 0; *p = 0; } |
580 |
|
|
exit(1); |
581 |
|
|
#endif |
582 |
|
|
#endif |
583 |
|
|
#endif |
584 |
|
|
|
585 |
|
|
DYNTRANS_PC_TO_POINTERS_GENERIC(cpu); |
586 |
|
|
return; |
587 |
|
|
|
588 |
|
|
/* Quick return path: */ |
589 |
|
|
have_it: |
590 |
|
|
cpu->cd.DYNTRANS_ARCH.cur_physpage = ppp; |
591 |
|
|
cpu->cd.DYNTRANS_ARCH.cur_ic_page = &ppp->ics[0]; |
592 |
|
|
cpu->cd.DYNTRANS_ARCH.next_ic = cpu->cd.DYNTRANS_ARCH.cur_ic_page + |
593 |
|
|
DYNTRANS_PC_TO_IC_ENTRY(cached_pc); |
594 |
|
|
|
595 |
|
|
/* printf("cached_pc=0x%016llx pagenr=%lli table_index=%lli, " |
596 |
|
|
"physpage_ofs=0x%016llx\n", (long long)cached_pc, (long long)pagenr, |
597 |
|
|
(long long)table_index, (long long)physpage_ofs); */ |
598 |
|
|
} |
599 |
|
|
#endif /* DYNTRANS_PC_TO_POINTERS_FUNC */ |
600 |
|
|
|
601 |
|
|
|
602 |
|
|
|
603 |
|
|
#ifdef DYNTRANS_INVAL_ENTRY |
604 |
|
|
/* |
605 |
|
|
* XXX_invalidate_tlb_entry(): |
606 |
|
|
* |
607 |
|
|
* Invalidate one translation entry (based on virtual address). |
608 |
|
|
* |
609 |
|
|
* If the JUST_MARK_AS_NON_WRITABLE flag is set, then the translation entry |
610 |
|
|
* is just downgraded to non-writable (ie the host store page is set to |
611 |
|
|
* NULL). Otherwise, the entire translation is removed. |
612 |
|
|
*/ |
613 |
|
|
void DYNTRANS_INVALIDATE_TLB_ENTRY(struct cpu *cpu, |
614 |
|
|
#ifdef MODE32 |
615 |
|
|
uint32_t |
616 |
|
|
#else |
617 |
|
|
uint64_t |
618 |
|
|
#endif |
619 |
|
|
vaddr_page, int flags) |
620 |
|
|
{ |
621 |
|
|
#ifdef MODE32 |
622 |
|
|
uint32_t index = vaddr_page >> 12; |
623 |
|
|
|
624 |
|
|
if (flags & JUST_MARK_AS_NON_WRITABLE) { |
625 |
|
|
/* printf("JUST MARKING NON-W: vaddr 0x%08x\n", |
626 |
|
|
(int)vaddr_page); */ |
627 |
|
|
cpu->cd.DYNTRANS_ARCH.host_store[index] = NULL; |
628 |
|
|
} else { |
629 |
|
|
cpu->cd.DYNTRANS_ARCH.host_load[index] = NULL; |
630 |
|
|
cpu->cd.DYNTRANS_ARCH.host_store[index] = NULL; |
631 |
|
|
cpu->cd.DYNTRANS_ARCH.phys_addr[index] = 0; |
632 |
|
|
cpu->cd.DYNTRANS_ARCH.phys_page[index] = NULL; |
633 |
|
|
} |
634 |
|
|
#else |
635 |
|
|
/* 2-level: */ |
636 |
|
|
#ifdef DYNTRANS_ALPHA |
637 |
|
|
struct alpha_vph_page *vph_p; |
638 |
|
|
uint32_t a, b; |
639 |
|
|
int kernel = 0; |
640 |
|
|
|
641 |
|
|
a = (vaddr_page >> ALPHA_LEVEL0_SHIFT) & (ALPHA_LEVEL0 - 1); |
642 |
|
|
b = (vaddr_page >> ALPHA_LEVEL1_SHIFT) & (ALPHA_LEVEL1 - 1); |
643 |
|
|
if ((vaddr_page >> ALPHA_TOPSHIFT) == ALPHA_TOP_KERNEL) { |
644 |
|
|
vph_p = cpu->cd.alpha.vph_table0_kernel[a]; |
645 |
|
|
kernel = 1; |
646 |
|
|
} else |
647 |
|
|
vph_p = cpu->cd.alpha.vph_table0[a]; |
648 |
|
|
|
649 |
|
|
if (vph_p == cpu->cd.alpha.vph_default_page) { |
650 |
|
|
fatal("alpha_invalidate_tlb_entry(): huh? Problem 1.\n"); |
651 |
|
|
exit(1); |
652 |
|
|
} |
653 |
|
|
|
654 |
|
|
if (flags & JUST_MARK_AS_NON_WRITABLE) { |
655 |
|
|
vph_p->host_store[b] = NULL; |
656 |
|
|
return; |
657 |
|
|
} |
658 |
|
|
vph_p->host_load[b] = NULL; |
659 |
|
|
vph_p->host_store[b] = NULL; |
660 |
|
|
vph_p->phys_addr[b] = 0; |
661 |
|
|
vph_p->phys_page[b] = NULL; |
662 |
|
|
vph_p->refcount --; |
663 |
|
|
if (vph_p->refcount < 0) { |
664 |
|
|
fatal("alpha_invalidate_tlb_entry(): huh? Problem 2.\n"); |
665 |
|
|
exit(1); |
666 |
|
|
} |
667 |
|
|
if (vph_p->refcount == 0) { |
668 |
|
|
vph_p->next = cpu->cd.alpha.vph_next_free_page; |
669 |
|
|
cpu->cd.alpha.vph_next_free_page = vph_p; |
670 |
|
|
if (kernel) |
671 |
|
|
cpu->cd.alpha.vph_table0_kernel[a] = |
672 |
|
|
cpu->cd.alpha.vph_default_page; |
673 |
|
|
else |
674 |
|
|
cpu->cd.alpha.vph_table0[a] = |
675 |
|
|
cpu->cd.alpha.vph_default_page; |
676 |
|
|
} |
677 |
|
|
#else /* !DYNTRANS_ALPHA */ |
678 |
|
|
#ifdef DYNTRANS_IA64 |
679 |
|
|
fatal("IA64: blah blah TODO\n"); |
680 |
|
|
#else |
681 |
|
|
fatal("Not yet for non-1-level, non-Alpha, non-ia64\n"); |
682 |
|
|
#endif /* !DYNTRANS_IA64 */ |
683 |
|
|
#endif /* !DYNTRANS_ALPHA */ |
684 |
|
|
#endif |
685 |
|
|
} |
686 |
|
|
#endif |
687 |
|
|
|
688 |
|
|
|
689 |
|
|
#ifdef DYNTRANS_INVALIDATE_TC_PADDR |
690 |
|
|
/* |
691 |
|
|
* XXX_invalidate_translation_caches_paddr(): |
692 |
|
|
* |
693 |
|
|
* Invalidate all entries matching a specific physical address, a specific |
694 |
|
|
* virtual address, or ALL entries. |
695 |
|
|
* |
696 |
|
|
* flags should be one of |
697 |
|
|
* INVALIDATE_PADDR INVALIDATE_VADDR or INVALIDATE_ALL |
698 |
|
|
* |
699 |
|
|
* In the case when all translations are invalidated, paddr doesn't need |
700 |
|
|
* to be supplied. |
701 |
|
|
* |
702 |
|
|
* NOTE/TODO: Poorly choosen name for this function, as it can |
703 |
|
|
* invalidate based on virtual address as well. |
704 |
|
|
*/ |
705 |
|
|
void DYNTRANS_INVALIDATE_TC_PADDR(struct cpu *cpu, uint64_t paddr, int flags) |
706 |
|
|
{ |
707 |
|
|
int r; |
708 |
|
|
#ifdef MODE32 |
709 |
|
|
uint32_t |
710 |
|
|
#else |
711 |
|
|
uint64_t |
712 |
|
|
#endif |
713 |
|
|
addr_page = paddr & ~(DYNTRANS_PAGESIZE - 1); |
714 |
|
|
|
715 |
|
|
for (r=0; r<DYNTRANS_MAX_VPH_TLB_ENTRIES; r++) { |
716 |
|
|
if (cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].valid && ( |
717 |
|
|
(cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].paddr_page == |
718 |
|
|
addr_page && flags & INVALIDATE_PADDR) || |
719 |
|
|
(cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].vaddr_page == |
720 |
|
|
addr_page && flags & INVALIDATE_VADDR) || |
721 |
|
|
flags & INVALIDATE_ALL) ) { |
722 |
|
|
DYNTRANS_INVALIDATE_TLB_ENTRY(cpu, |
723 |
|
|
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].vaddr_page, |
724 |
|
|
flags); |
725 |
|
|
if (flags & JUST_MARK_AS_NON_WRITABLE) |
726 |
|
|
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r] |
727 |
|
|
.writeflag = 0; |
728 |
|
|
else |
729 |
|
|
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r] |
730 |
|
|
.valid = 0; |
731 |
|
|
} |
732 |
|
|
} |
733 |
|
|
} |
734 |
|
|
#endif /* DYNTRANS_INVALIDATE_TC_PADDR */ |
735 |
|
|
|
736 |
|
|
|
737 |
|
|
|
738 |
|
|
#ifdef DYNTRANS_INVALIDATE_TC_CODE |
739 |
|
|
/* |
740 |
|
|
* XXX_invalidate_code_translation(): |
741 |
|
|
* |
742 |
|
|
* Invalidate code translations for a specific physical address, a specific |
743 |
|
|
* virtual address, or for all entries in the cache. |
744 |
|
|
*/ |
745 |
|
|
void DYNTRANS_INVALIDATE_TC_CODE(struct cpu *cpu, uint64_t addr, int flags) |
746 |
|
|
{ |
747 |
|
|
int r; |
748 |
|
|
#ifdef MODE_32 |
749 |
|
|
uint32_t |
750 |
|
|
#else |
751 |
|
|
uint64_t |
752 |
|
|
#endif |
753 |
|
|
vaddr_page, paddr_page; |
754 |
|
|
|
755 |
|
|
addr &= ~(DYNTRANS_PAGESIZE-1); |
756 |
|
|
|
757 |
|
|
/* printf("DYNTRANS_INVALIDATE_TC_CODE addr=0x%08x flags=%i\n", |
758 |
|
|
(int)addr, flags); */ |
759 |
|
|
|
760 |
|
|
if (flags & INVALIDATE_PADDR) { |
761 |
|
|
int pagenr, table_index; |
762 |
|
|
uint32_t physpage_ofs, *physpage_entryp; |
763 |
|
|
struct DYNTRANS_TC_PHYSPAGE *ppp; |
764 |
|
|
|
765 |
|
|
pagenr = DYNTRANS_ADDR_TO_PAGENR(addr); |
766 |
|
|
table_index = PAGENR_TO_TABLE_INDEX(pagenr); |
767 |
|
|
|
768 |
|
|
physpage_entryp = &(((uint32_t *)cpu-> |
769 |
|
|
translation_cache)[table_index]); |
770 |
|
|
physpage_ofs = *physpage_entryp; |
771 |
|
|
ppp = NULL; |
772 |
|
|
|
773 |
|
|
/* Traverse the physical page chain: */ |
774 |
|
|
while (physpage_ofs != 0) { |
775 |
|
|
ppp = (struct DYNTRANS_TC_PHYSPAGE *) |
776 |
|
|
(cpu->translation_cache + physpage_ofs); |
777 |
|
|
/* If we found the page in the cache, |
778 |
|
|
then we're done: */ |
779 |
|
|
if (ppp->physaddr == addr) |
780 |
|
|
break; |
781 |
|
|
/* Try the next page in the chain: */ |
782 |
|
|
physpage_ofs = ppp->next_ofs; |
783 |
|
|
} |
784 |
|
|
|
785 |
|
|
/* If the page was found, then we should invalidate all |
786 |
|
|
code translations: */ |
787 |
|
|
if (ppp != NULL) { |
788 |
|
|
/* TODO: Is this faster than copying an entire |
789 |
|
|
template page? */ |
790 |
|
|
int i; |
791 |
|
|
for (i=0; i<DYNTRANS_IC_ENTRIES_PER_PAGE; i++) |
792 |
|
|
ppp->ics[i].f = |
793 |
|
|
#ifdef DYNTRANS_DUALMODE_32 |
794 |
|
|
cpu->is_32bit? instr32(to_be_translated) : |
795 |
|
|
#endif |
796 |
|
|
instr(to_be_translated); |
797 |
|
|
} |
798 |
|
|
} |
799 |
|
|
|
800 |
|
|
/* Invalidate entries in the VPH table: */ |
801 |
|
|
for (r=0; r<DYNTRANS_MAX_VPH_TLB_ENTRIES; r++) { |
802 |
|
|
if (cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].valid) { |
803 |
|
|
vaddr_page = cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r] |
804 |
|
|
.vaddr_page & ~(DYNTRANS_PAGESIZE-1); |
805 |
|
|
paddr_page = cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r] |
806 |
|
|
.paddr_page & ~(DYNTRANS_PAGESIZE-1); |
807 |
|
|
|
808 |
|
|
if (flags & INVALIDATE_ALL || |
809 |
|
|
(flags & INVALIDATE_PADDR && paddr_page == addr) || |
810 |
|
|
(flags & INVALIDATE_VADDR && vaddr_page == addr)) { |
811 |
|
|
#ifdef MODE32 |
812 |
|
|
uint32_t index = vaddr_page >> 12; |
813 |
|
|
cpu->cd.DYNTRANS_ARCH.phys_page[index] = NULL; |
814 |
|
|
#else |
815 |
|
|
/* 2-level: */ |
816 |
|
|
#ifdef DYNTRANS_ALPHA |
817 |
|
|
struct alpha_vph_page *vph_p; |
818 |
|
|
uint32_t a, b; |
819 |
|
|
int kernel = 0; |
820 |
|
|
|
821 |
|
|
a = (vaddr_page >> ALPHA_LEVEL0_SHIFT) |
822 |
|
|
& (ALPHA_LEVEL0 - 1); |
823 |
|
|
b = (vaddr_page >> ALPHA_LEVEL1_SHIFT) |
824 |
|
|
& (ALPHA_LEVEL1 - 1); |
825 |
|
|
if ((vaddr_page >> ALPHA_TOPSHIFT) == |
826 |
|
|
ALPHA_TOP_KERNEL) { |
827 |
|
|
vph_p = cpu->cd.alpha. |
828 |
|
|
vph_table0_kernel[a]; |
829 |
|
|
kernel = 1; |
830 |
|
|
} else |
831 |
|
|
vph_p = cpu->cd.alpha.vph_table0[a]; |
832 |
|
|
vph_p->phys_page[b] = NULL; |
833 |
|
|
#else /* !DYNTRANS_ALPHA */ |
834 |
|
|
#ifdef DYNTRANS_IA64 |
835 |
|
|
fatal("IA64: blah yo yo TODO\n"); |
836 |
|
|
#else |
837 |
|
|
fatal("Not yet for non-1-level, non-Alpha, " |
838 |
|
|
"non-ia64\n"); |
839 |
|
|
#endif /* !DYNTRANS_IA64 */ |
840 |
|
|
#endif /* !DYNTRANS_ALPHA */ |
841 |
|
|
#endif |
842 |
|
|
} |
843 |
|
|
} |
844 |
|
|
} |
845 |
|
|
} |
846 |
|
|
#endif /* DYNTRANS_INVALIDATE_TC_CODE */ |
847 |
|
|
|
848 |
|
|
|
849 |
|
|
|
850 |
|
|
#ifdef DYNTRANS_UPDATE_TRANSLATION_TABLE |
851 |
|
|
/* |
852 |
|
|
* XXX_update_translation_table(): |
853 |
|
|
* |
854 |
|
|
* Update the virtual memory translation tables. |
855 |
|
|
*/ |
856 |
|
|
void DYNTRANS_UPDATE_TRANSLATION_TABLE(struct cpu *cpu, uint64_t vaddr_page, |
857 |
|
|
unsigned char *host_page, int writeflag, uint64_t paddr_page) |
858 |
|
|
{ |
859 |
|
|
int64_t lowest, highest = -1; |
860 |
|
|
int found, r, lowest_index; |
861 |
|
|
|
862 |
|
|
#ifdef DYNTRANS_ALPHA |
863 |
|
|
uint32_t a, b; |
864 |
|
|
struct alpha_vph_page *vph_p; |
865 |
|
|
int kernel = 0; |
866 |
|
|
/* fatal("update_translation_table(): v=0x%llx, h=%p w=%i" |
867 |
|
|
" p=0x%llx\n", (long long)vaddr_page, host_page, writeflag, |
868 |
|
|
(long long)paddr_page); */ |
869 |
|
|
#else |
870 |
|
|
#ifdef MODE32 |
871 |
|
|
uint32_t index; |
872 |
|
|
vaddr_page &= 0xffffffffULL; |
873 |
|
|
paddr_page &= 0xffffffffULL; |
874 |
|
|
/* fatal("update_translation_table(): v=0x%x, h=%p w=%i" |
875 |
|
|
" p=0x%x\n", (int)vaddr_page, host_page, writeflag, |
876 |
|
|
(int)paddr_page); */ |
877 |
|
|
#else /* !MODE32 */ |
878 |
|
|
#ifdef DYNTRANS_IA64 |
879 |
|
|
fatal("IA64 update todo\n"); |
880 |
|
|
#else |
881 |
|
|
fatal("Neither 32-bit, IA64, nor Alpha? 2\n"); |
882 |
|
|
exit(1); |
883 |
|
|
#endif |
884 |
|
|
#endif |
885 |
|
|
#endif |
886 |
|
|
|
887 |
|
|
/* Scan the current TLB entries: */ |
888 |
|
|
found = -1; lowest_index = 0; |
889 |
|
|
lowest = cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[0].timestamp; |
890 |
|
|
for (r=0; r<DYNTRANS_MAX_VPH_TLB_ENTRIES; r++) { |
891 |
|
|
if (cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].timestamp < lowest) { |
892 |
|
|
lowest = cpu->cd.DYNTRANS_ARCH. |
893 |
|
|
vph_tlb_entry[r].timestamp; |
894 |
|
|
lowest_index = r; |
895 |
|
|
} |
896 |
|
|
if (cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].timestamp > highest) |
897 |
|
|
highest = cpu->cd.DYNTRANS_ARCH. |
898 |
|
|
vph_tlb_entry[r].timestamp; |
899 |
|
|
if (cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].valid && |
900 |
|
|
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].vaddr_page == |
901 |
|
|
vaddr_page) { |
902 |
|
|
found = r; |
903 |
|
|
break; |
904 |
|
|
} |
905 |
|
|
} |
906 |
|
|
|
907 |
|
|
if (found < 0) { |
908 |
|
|
/* Create the new TLB entry, overwriting the oldest one: */ |
909 |
|
|
r = lowest_index; |
910 |
|
|
if (cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].valid) { |
911 |
|
|
/* This one has to be invalidated first: */ |
912 |
|
|
DYNTRANS_INVALIDATE_TLB_ENTRY(cpu, |
913 |
|
|
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].vaddr_page, |
914 |
|
|
0); |
915 |
|
|
} |
916 |
|
|
|
917 |
|
|
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].valid = 1; |
918 |
|
|
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].host_page = host_page; |
919 |
|
|
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].paddr_page = paddr_page; |
920 |
|
|
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].vaddr_page = vaddr_page; |
921 |
|
|
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].writeflag = writeflag; |
922 |
|
|
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].timestamp = highest + 1; |
923 |
|
|
|
924 |
|
|
/* Add the new translation to the table: */ |
925 |
|
|
#ifdef DYNTRANS_ALPHA |
926 |
|
|
a = (vaddr_page >> ALPHA_LEVEL0_SHIFT) & (ALPHA_LEVEL0 - 1); |
927 |
|
|
b = (vaddr_page >> ALPHA_LEVEL1_SHIFT) & (ALPHA_LEVEL1 - 1); |
928 |
|
|
if ((vaddr_page >> ALPHA_TOPSHIFT) == ALPHA_TOP_KERNEL) { |
929 |
|
|
vph_p = cpu->cd.alpha.vph_table0_kernel[a]; |
930 |
|
|
kernel = 1; |
931 |
|
|
} else |
932 |
|
|
vph_p = cpu->cd.alpha.vph_table0[a]; |
933 |
|
|
if (vph_p == cpu->cd.alpha.vph_default_page) { |
934 |
|
|
if (cpu->cd.alpha.vph_next_free_page != NULL) { |
935 |
|
|
if (kernel) |
936 |
|
|
vph_p = cpu->cd.alpha.vph_table0_kernel |
937 |
|
|
[a] = cpu->cd.alpha. |
938 |
|
|
vph_next_free_page; |
939 |
|
|
else |
940 |
|
|
vph_p = cpu->cd.alpha.vph_table0[a] = |
941 |
|
|
cpu->cd.alpha.vph_next_free_page; |
942 |
|
|
cpu->cd.alpha.vph_next_free_page = vph_p->next; |
943 |
|
|
} else { |
944 |
|
|
if (kernel) |
945 |
|
|
vph_p = cpu->cd.alpha.vph_table0_kernel |
946 |
|
|
[a] = malloc(sizeof(struct |
947 |
|
|
alpha_vph_page)); |
948 |
|
|
else |
949 |
|
|
vph_p = cpu->cd.alpha.vph_table0[a] = |
950 |
|
|
malloc(sizeof(struct |
951 |
|
|
alpha_vph_page)); |
952 |
|
|
memset(vph_p, 0, sizeof(struct alpha_vph_page)); |
953 |
|
|
} |
954 |
|
|
} |
955 |
|
|
vph_p->refcount ++; |
956 |
|
|
vph_p->host_load[b] = host_page; |
957 |
|
|
vph_p->host_store[b] = writeflag? host_page : NULL; |
958 |
|
|
vph_p->phys_addr[b] = paddr_page; |
959 |
|
|
vph_p->phys_page[b] = NULL; |
960 |
|
|
#else |
961 |
|
|
#ifdef MODE32 |
962 |
|
|
index = vaddr_page >> 12; |
963 |
|
|
cpu->cd.DYNTRANS_ARCH.host_load[index] = host_page; |
964 |
|
|
cpu->cd.DYNTRANS_ARCH.host_store[index] = |
965 |
|
|
writeflag? host_page : NULL; |
966 |
|
|
cpu->cd.DYNTRANS_ARCH.phys_addr[index] = paddr_page; |
967 |
|
|
cpu->cd.DYNTRANS_ARCH.phys_page[index] = NULL; |
968 |
|
|
#endif /* 32 */ |
969 |
|
|
#endif /* !ALPHA */ |
970 |
|
|
} else { |
971 |
|
|
/* |
972 |
|
|
* The translation was already in the TLB. |
973 |
|
|
* Writeflag = 0: Do nothing. |
974 |
|
|
* Writeflag = 1: Make sure the page is writable. |
975 |
|
|
* Writeflag = -1: Downgrade to readonly. |
976 |
|
|
*/ |
977 |
|
|
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[found].timestamp = |
978 |
|
|
highest + 1; |
979 |
|
|
if (writeflag == 1) |
980 |
|
|
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].writeflag = 1; |
981 |
|
|
if (writeflag == -1) |
982 |
|
|
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].writeflag = 0; |
983 |
|
|
#ifdef DYNTRANS_ALPHA |
984 |
|
|
a = (vaddr_page >> ALPHA_LEVEL0_SHIFT) & (ALPHA_LEVEL0 - 1); |
985 |
|
|
b = (vaddr_page >> ALPHA_LEVEL1_SHIFT) & (ALPHA_LEVEL1 - 1); |
986 |
|
|
if ((vaddr_page >> ALPHA_TOPSHIFT) == ALPHA_TOP_KERNEL) { |
987 |
|
|
vph_p = cpu->cd.alpha.vph_table0_kernel[a]; |
988 |
|
|
kernel = 1; |
989 |
|
|
} else |
990 |
|
|
vph_p = cpu->cd.alpha.vph_table0[a]; |
991 |
|
|
vph_p->phys_page[b] = NULL; |
992 |
|
|
if (vph_p->phys_addr[b] == paddr_page) { |
993 |
|
|
if (writeflag == 1) |
994 |
|
|
vph_p->host_store[b] = host_page; |
995 |
|
|
if (writeflag == -1) |
996 |
|
|
vph_p->host_store[b] = NULL; |
997 |
|
|
} else { |
998 |
|
|
/* Change the entire physical/host mapping: */ |
999 |
|
|
vph_p->host_load[b] = host_page; |
1000 |
|
|
vph_p->host_store[b] = writeflag? host_page : NULL; |
1001 |
|
|
vph_p->phys_addr[b] = paddr_page; |
1002 |
|
|
} |
1003 |
|
|
#else |
1004 |
|
|
#ifdef MODE32 |
1005 |
|
|
index = vaddr_page >> 12; |
1006 |
|
|
cpu->cd.DYNTRANS_ARCH.phys_page[index] = NULL; |
1007 |
|
|
if (cpu->cd.DYNTRANS_ARCH.phys_addr[index] == paddr_page) { |
1008 |
|
|
if (writeflag == 1) |
1009 |
|
|
cpu->cd.DYNTRANS_ARCH.host_store[index] = |
1010 |
|
|
host_page; |
1011 |
|
|
if (writeflag == -1) |
1012 |
|
|
cpu->cd.DYNTRANS_ARCH.host_store[index] = NULL; |
1013 |
|
|
} else { |
1014 |
|
|
/* Change the entire physical/host mapping: */ |
1015 |
|
|
cpu->cd.DYNTRANS_ARCH.host_load[index] = host_page; |
1016 |
|
|
cpu->cd.DYNTRANS_ARCH.host_store[index] = |
1017 |
|
|
writeflag? host_page : NULL; |
1018 |
|
|
cpu->cd.DYNTRANS_ARCH.phys_addr[index] = paddr_page; |
1019 |
|
|
} |
1020 |
|
|
#endif /* 32 */ |
1021 |
|
|
#endif /* !ALPHA */ |
1022 |
|
|
} |
1023 |
|
|
} |
1024 |
|
|
#endif /* DYNTRANS_UPDATE_TRANSLATION_TABLE */ |
1025 |
|
|
|
1026 |
|
|
|
1027 |
|
|
/*****************************************************************************/ |
1028 |
|
|
|
1029 |
|
|
|
1030 |
|
|
#ifdef DYNTRANS_TO_BE_TRANSLATED_HEAD |
1031 |
|
|
/* |
1032 |
|
|
* Check for breakpoints. |
1033 |
|
|
*/ |
1034 |
|
|
if (!single_step_breakpoint) { |
1035 |
|
|
#ifdef MODE32 |
1036 |
|
|
uint32_t curpc = cpu->pc; |
1037 |
|
|
#else |
1038 |
|
|
uint64_t curpc = cpu->pc; |
1039 |
|
|
#endif |
1040 |
|
|
int i; |
1041 |
|
|
for (i=0; i<cpu->machine->n_breakpoints; i++) |
1042 |
|
|
if (curpc == |
1043 |
|
|
#ifdef MODE32 |
1044 |
|
|
(uint32_t) |
1045 |
|
|
#endif |
1046 |
|
|
cpu->machine->breakpoint_addr[i]) { |
1047 |
|
|
if (!cpu->machine->instruction_trace) { |
1048 |
|
|
int old_quiet_mode = quiet_mode; |
1049 |
|
|
quiet_mode = 0; |
1050 |
|
|
DISASSEMBLE(cpu, ib, 1, 0, 0); |
1051 |
|
|
quiet_mode = old_quiet_mode; |
1052 |
|
|
} |
1053 |
|
|
fatal("BREAKPOINT: pc = 0x%llx\n(The " |
1054 |
|
|
"instruction has not yet executed.)\n", |
1055 |
|
|
(long long)cpu->pc); |
1056 |
|
|
single_step_breakpoint = 1; |
1057 |
|
|
single_step = 1; |
1058 |
|
|
goto stop_running_translated; |
1059 |
|
|
} |
1060 |
|
|
} |
1061 |
|
|
#endif /* DYNTRANS_TO_BE_TRANSLATED_HEAD */ |
1062 |
|
|
|
1063 |
|
|
|
1064 |
|
|
/*****************************************************************************/ |
1065 |
|
|
|
1066 |
|
|
|
1067 |
|
|
#ifdef DYNTRANS_TO_BE_TRANSLATED_TAIL |
1068 |
|
|
/* |
1069 |
|
|
* If we end up here, then an instruction was translated. |
1070 |
|
|
*/ |
1071 |
|
|
translated; |
1072 |
|
|
|
1073 |
|
|
/* |
1074 |
|
|
* Now it is time to check for combinations of instructions that can |
1075 |
|
|
* be converted into a single function call. |
1076 |
|
|
* |
1077 |
|
|
* Note: Single-stepping or instruction tracing doesn't work with |
1078 |
|
|
* instruction combination. |
1079 |
|
|
*/ |
1080 |
|
|
if (!single_step && !cpu->machine->instruction_trace) |
1081 |
|
|
COMBINE_INSTRUCTIONS(cpu, ic, addr); |
1082 |
|
|
|
1083 |
|
|
/* ... and finally execute the translated instruction: */ |
1084 |
|
|
if (single_step_breakpoint) { |
1085 |
|
|
/* |
1086 |
|
|
* Special case when single-stepping: Execute the translated |
1087 |
|
|
* instruction, but then replace it with a "to be translated" |
1088 |
|
|
* directly afterwards. |
1089 |
|
|
*/ |
1090 |
|
|
single_step_breakpoint = 0; |
1091 |
|
|
ic->f(cpu, ic); |
1092 |
|
|
ic->f = |
1093 |
|
|
#ifdef DYNTRANS_DUALMODE_32 |
1094 |
|
|
cpu->is_32bit? instr32(to_be_translated) : |
1095 |
|
|
#endif |
1096 |
|
|
instr(to_be_translated); |
1097 |
|
|
} else |
1098 |
|
|
ic->f(cpu, ic); |
1099 |
|
|
|
1100 |
|
|
return; |
1101 |
|
|
|
1102 |
|
|
|
1103 |
|
|
bad: /* |
1104 |
|
|
* Nothing was translated. (Unimplemented or illegal instruction.) |
1105 |
|
|
*/ |
1106 |
|
|
|
1107 |
|
|
quiet_mode = 0; |
1108 |
|
|
fatal("to_be_translated(): TODO: unimplemented instruction"); |
1109 |
|
|
|
1110 |
|
|
if (cpu->machine->instruction_trace) |
1111 |
|
|
#ifdef MODE32 |
1112 |
|
|
fatal(" at 0x%x\n", (int)cpu->pc); |
1113 |
|
|
#else |
1114 |
|
|
fatal(" at 0x%llx\n", (long long)cpu->pc); |
1115 |
|
|
#endif |
1116 |
|
|
else { |
1117 |
|
|
fatal(":\n"); |
1118 |
|
|
DISASSEMBLE(cpu, ib, 1, 0, 0); |
1119 |
|
|
} |
1120 |
|
|
|
1121 |
|
|
cpu->running = 0; |
1122 |
|
|
cpu->dead = 1; |
1123 |
|
|
stop_running_translated: |
1124 |
|
|
debugger_n_steps_left_before_interaction = 0; |
1125 |
|
|
cpu->running_translated = 0; |
1126 |
|
|
ic = cpu->cd.DYNTRANS_ARCH.next_ic = ¬hing_call; |
1127 |
|
|
cpu->cd.DYNTRANS_ARCH.next_ic ++; |
1128 |
|
|
|
1129 |
|
|
/* Execute the "nothing" instruction: */ |
1130 |
|
|
ic->f(cpu, ic); |
1131 |
|
|
#endif /* DYNTRANS_TO_BE_TRANSLATED_TAIL */ |
1132 |
|
|
|