From bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 Mon Sep 17 00:00:00 2001 From: RajithaY Date: Tue, 25 Apr 2017 03:31:15 -0700 Subject: Adding qemu as a submodule of KVMFORNFV This Patch includes the changes to add qemu as a submodule to kvmfornfv repo and make use of the updated latest qemu for the execution of all testcase Change-Id: I1280af507a857675c7f81d30c95255635667bdd7 Signed-off-by:RajithaY --- qemu/target-cris/helper.c | 318 ---------------------------------------------- 1 file changed, 318 deletions(-) delete mode 100644 qemu/target-cris/helper.c (limited to 'qemu/target-cris/helper.c') diff --git a/qemu/target-cris/helper.c b/qemu/target-cris/helper.c deleted file mode 100644 index 1eb9fd918..000000000 --- a/qemu/target-cris/helper.c +++ /dev/null @@ -1,318 +0,0 @@ -/* - * CRIS helper routines. - * - * Copyright (c) 2007 AXIS Communications AB - * Written by Edgar E. Iglesias. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, see . - */ - -#include "qemu/osdep.h" -#include "cpu.h" -#include "mmu.h" -#include "qemu/host-utils.h" -#include "exec/cpu_ldst.h" - - -//#define CRIS_HELPER_DEBUG - - -#ifdef CRIS_HELPER_DEBUG -#define D(x) x -#define D_LOG(...) qemu_log(__VA_ARGS__) -#else -#define D(x) -#define D_LOG(...) do { } while (0) -#endif - -#if defined(CONFIG_USER_ONLY) - -void cris_cpu_do_interrupt(CPUState *cs) -{ - CRISCPU *cpu = CRIS_CPU(cs); - CPUCRISState *env = &cpu->env; - - cs->exception_index = -1; - env->pregs[PR_ERP] = env->pc; -} - -void crisv10_cpu_do_interrupt(CPUState *cs) -{ - cris_cpu_do_interrupt(cs); -} - -int cris_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int rw, - int mmu_idx) -{ - CRISCPU *cpu = CRIS_CPU(cs); - - cs->exception_index = 0xaa; - cpu->env.pregs[PR_EDA] = address; - cpu_dump_state(cs, stderr, fprintf, 0); - return 1; -} - -#else /* !CONFIG_USER_ONLY */ - - -static void cris_shift_ccs(CPUCRISState *env) -{ - uint32_t ccs; - /* Apply the ccs shift. */ - ccs = env->pregs[PR_CCS]; - ccs = ((ccs & 0xc0000000) | ((ccs << 12) >> 2)) & ~0x3ff; - env->pregs[PR_CCS] = ccs; -} - -int cris_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int rw, - int mmu_idx) -{ - CRISCPU *cpu = CRIS_CPU(cs); - CPUCRISState *env = &cpu->env; - struct cris_mmu_result res; - int prot, miss; - int r = -1; - target_ulong phy; - - qemu_log_mask(CPU_LOG_MMU, "%s addr=%" VADDR_PRIx " pc=%x rw=%x\n", - __func__, address, env->pc, rw); - miss = cris_mmu_translate(&res, env, address & TARGET_PAGE_MASK, - rw, mmu_idx, 0); - if (miss) { - if (cs->exception_index == EXCP_BUSFAULT) { - cpu_abort(cs, - "CRIS: Illegal recursive bus fault." - "addr=%" VADDR_PRIx " rw=%d\n", - address, rw); - } - - env->pregs[PR_EDA] = address; - cs->exception_index = EXCP_BUSFAULT; - env->fault_vector = res.bf_vec; - r = 1; - } else { - /* - * Mask off the cache selection bit. The ETRAX busses do not - * see the top bit. - */ - phy = res.phy & ~0x80000000; - prot = res.prot; - tlb_set_page(cs, address & TARGET_PAGE_MASK, phy, - prot, mmu_idx, TARGET_PAGE_SIZE); - r = 0; - } - if (r > 0) { - qemu_log_mask(CPU_LOG_MMU, - "%s returns %d irqreq=%x addr=%" VADDR_PRIx " phy=%x vec=%x" - " pc=%x\n", __func__, r, cs->interrupt_request, address, - res.phy, res.bf_vec, env->pc); - } - return r; -} - -void crisv10_cpu_do_interrupt(CPUState *cs) -{ - CRISCPU *cpu = CRIS_CPU(cs); - CPUCRISState *env = &cpu->env; - int ex_vec = -1; - - D_LOG("exception index=%d interrupt_req=%d\n", - cs->exception_index, - cs->interrupt_request); - - if (env->dslot) { - /* CRISv10 never takes interrupts while in a delay-slot. */ - cpu_abort(cs, "CRIS: Interrupt on delay-slot\n"); - } - - assert(!(env->pregs[PR_CCS] & PFIX_FLAG)); - switch (cs->exception_index) { - case EXCP_BREAK: - /* These exceptions are genereated by the core itself. - ERP should point to the insn following the brk. */ - ex_vec = env->trap_vector; - env->pregs[PRV10_BRP] = env->pc; - break; - - case EXCP_NMI: - /* NMI is hardwired to vector zero. */ - ex_vec = 0; - env->pregs[PR_CCS] &= ~M_FLAG_V10; - env->pregs[PRV10_BRP] = env->pc; - break; - - case EXCP_BUSFAULT: - cpu_abort(cs, "Unhandled busfault"); - break; - - default: - /* The interrupt controller gives us the vector. */ - ex_vec = env->interrupt_vector; - /* Normal interrupts are taken between - TB's. env->pc is valid here. */ - env->pregs[PR_ERP] = env->pc; - break; - } - - if (env->pregs[PR_CCS] & U_FLAG) { - /* Swap stack pointers. */ - env->pregs[PR_USP] = env->regs[R_SP]; - env->regs[R_SP] = env->ksp; - } - - /* Now that we are in kernel mode, load the handlers address. */ - env->pc = cpu_ldl_code(env, env->pregs[PR_EBP] + ex_vec * 4); - env->locked_irq = 1; - env->pregs[PR_CCS] |= F_FLAG_V10; /* set F. */ - - qemu_log_mask(CPU_LOG_INT, "%s isr=%x vec=%x ccs=%x pid=%d erp=%x\n", - __func__, env->pc, ex_vec, - env->pregs[PR_CCS], - env->pregs[PR_PID], - env->pregs[PR_ERP]); -} - -void cris_cpu_do_interrupt(CPUState *cs) -{ - CRISCPU *cpu = CRIS_CPU(cs); - CPUCRISState *env = &cpu->env; - int ex_vec = -1; - - D_LOG("exception index=%d interrupt_req=%d\n", - cs->exception_index, - cs->interrupt_request); - - switch (cs->exception_index) { - case EXCP_BREAK: - /* These exceptions are genereated by the core itself. - ERP should point to the insn following the brk. */ - ex_vec = env->trap_vector; - env->pregs[PR_ERP] = env->pc; - break; - - case EXCP_NMI: - /* NMI is hardwired to vector zero. */ - ex_vec = 0; - env->pregs[PR_CCS] &= ~M_FLAG_V32; - env->pregs[PR_NRP] = env->pc; - break; - - case EXCP_BUSFAULT: - ex_vec = env->fault_vector; - env->pregs[PR_ERP] = env->pc; - break; - - default: - /* The interrupt controller gives us the vector. */ - ex_vec = env->interrupt_vector; - /* Normal interrupts are taken between - TB's. env->pc is valid here. */ - env->pregs[PR_ERP] = env->pc; - break; - } - - /* Fill in the IDX field. */ - env->pregs[PR_EXS] = (ex_vec & 0xff) << 8; - - if (env->dslot) { - D_LOG("excp isr=%x PC=%x ds=%d SP=%x" - " ERP=%x pid=%x ccs=%x cc=%d %x\n", - ex_vec, env->pc, env->dslot, - env->regs[R_SP], - env->pregs[PR_ERP], env->pregs[PR_PID], - env->pregs[PR_CCS], - env->cc_op, env->cc_mask); - /* We loose the btarget, btaken state here so rexec the - branch. */ - env->pregs[PR_ERP] -= env->dslot; - /* Exception starts with dslot cleared. */ - env->dslot = 0; - } - - if (env->pregs[PR_CCS] & U_FLAG) { - /* Swap stack pointers. */ - env->pregs[PR_USP] = env->regs[R_SP]; - env->regs[R_SP] = env->ksp; - } - - /* Apply the CRIS CCS shift. Clears U if set. */ - cris_shift_ccs(env); - - /* Now that we are in kernel mode, load the handlers address. - This load may not fault, real hw leaves that behaviour as - undefined. */ - env->pc = cpu_ldl_code(env, env->pregs[PR_EBP] + ex_vec * 4); - - /* Clear the excption_index to avoid spurios hw_aborts for recursive - bus faults. */ - cs->exception_index = -1; - - D_LOG("%s isr=%x vec=%x ccs=%x pid=%d erp=%x\n", - __func__, env->pc, ex_vec, - env->pregs[PR_CCS], - env->pregs[PR_PID], - env->pregs[PR_ERP]); -} - -hwaddr cris_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) -{ - CRISCPU *cpu = CRIS_CPU(cs); - uint32_t phy = addr; - struct cris_mmu_result res; - int miss; - - miss = cris_mmu_translate(&res, &cpu->env, addr, 0, 0, 1); - /* If D TLB misses, try I TLB. */ - if (miss) { - miss = cris_mmu_translate(&res, &cpu->env, addr, 2, 0, 1); - } - - if (!miss) { - phy = res.phy; - } - D(fprintf(stderr, "%s %x -> %x\n", __func__, addr, phy)); - return phy; -} -#endif - -bool cris_cpu_exec_interrupt(CPUState *cs, int interrupt_request) -{ - CPUClass *cc = CPU_GET_CLASS(cs); - CRISCPU *cpu = CRIS_CPU(cs); - CPUCRISState *env = &cpu->env; - bool ret = false; - - if (interrupt_request & CPU_INTERRUPT_HARD - && (env->pregs[PR_CCS] & I_FLAG) - && !env->locked_irq) { - cs->exception_index = EXCP_IRQ; - cc->do_interrupt(cs); - ret = true; - } - if (interrupt_request & CPU_INTERRUPT_NMI) { - unsigned int m_flag_archval; - if (env->pregs[PR_VR] < 32) { - m_flag_archval = M_FLAG_V10; - } else { - m_flag_archval = M_FLAG_V32; - } - if ((env->pregs[PR_CCS] & m_flag_archval)) { - cs->exception_index = EXCP_NMI; - cc->do_interrupt(cs); - ret = true; - } - } - - return ret; -} -- cgit 1.2.3-korg