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authorRajithaY <rajithax.yerrumsetty@intel.com>2017-04-25 03:31:15 -0700
committerRajitha Yerrumchetty <rajithax.yerrumsetty@intel.com>2017-05-22 06:48:08 +0000
commitbb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch)
treeca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/target-microblaze/helper.c
parenta14b48d18a9ed03ec191cf16b162206998a895ce (diff)
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<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/target-microblaze/helper.c')
-rw-r--r--qemu/target-microblaze/helper.c306
1 files changed, 0 insertions, 306 deletions
diff --git a/qemu/target-microblaze/helper.c b/qemu/target-microblaze/helper.c
deleted file mode 100644
index 4de6bdbf8..000000000
--- a/qemu/target-microblaze/helper.c
+++ /dev/null
@@ -1,306 +0,0 @@
-/*
- * MicroBlaze helper routines.
- *
- * Copyright (c) 2009 Edgar E. Iglesias <edgar.iglesias@gmail.com>
- * Copyright (c) 2009-2012 PetaLogix Qld Pty Ltd.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "qemu/osdep.h"
-#include "cpu.h"
-#include "qemu/host-utils.h"
-#include "exec/log.h"
-
-#define D(x)
-
-#if defined(CONFIG_USER_ONLY)
-
-void mb_cpu_do_interrupt(CPUState *cs)
-{
- MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs);
- CPUMBState *env = &cpu->env;
-
- cs->exception_index = -1;
- env->res_addr = RES_ADDR_NONE;
- env->regs[14] = env->sregs[SR_PC];
-}
-
-int mb_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int rw,
- int mmu_idx)
-{
- cs->exception_index = 0xaa;
- cpu_dump_state(cs, stderr, fprintf, 0);
- return 1;
-}
-
-#else /* !CONFIG_USER_ONLY */
-
-int mb_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int rw,
- int mmu_idx)
-{
- MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs);
- CPUMBState *env = &cpu->env;
- unsigned int hit;
- unsigned int mmu_available;
- int r = 1;
- int prot;
-
- mmu_available = 0;
- if (cpu->cfg.use_mmu) {
- mmu_available = 1;
- if ((cpu->cfg.pvr == C_PVR_FULL) &&
- (env->pvr.regs[11] & PVR11_USE_MMU) != PVR11_USE_MMU) {
- mmu_available = 0;
- }
- }
-
- /* Translate if the MMU is available and enabled. */
- if (mmu_available && (env->sregs[SR_MSR] & MSR_VM)) {
- target_ulong vaddr, paddr;
- struct microblaze_mmu_lookup lu;
-
- hit = mmu_translate(&env->mmu, &lu, address, rw, mmu_idx);
- if (hit) {
- vaddr = address & TARGET_PAGE_MASK;
- paddr = lu.paddr + vaddr - lu.vaddr;
-
- qemu_log_mask(CPU_LOG_MMU, "MMU map mmu=%d v=%x p=%x prot=%x\n",
- mmu_idx, vaddr, paddr, lu.prot);
- tlb_set_page(cs, vaddr, paddr, lu.prot, mmu_idx, TARGET_PAGE_SIZE);
- r = 0;
- } else {
- env->sregs[SR_EAR] = address;
- qemu_log_mask(CPU_LOG_MMU, "mmu=%d miss v=%" VADDR_PRIx "\n",
- mmu_idx, address);
-
- switch (lu.err) {
- case ERR_PROT:
- env->sregs[SR_ESR] = rw == 2 ? 17 : 16;
- env->sregs[SR_ESR] |= (rw == 1) << 10;
- break;
- case ERR_MISS:
- env->sregs[SR_ESR] = rw == 2 ? 19 : 18;
- env->sregs[SR_ESR] |= (rw == 1) << 10;
- break;
- default:
- abort();
- break;
- }
-
- if (cs->exception_index == EXCP_MMU) {
- cpu_abort(cs, "recursive faults\n");
- }
-
- /* TLB miss. */
- cs->exception_index = EXCP_MMU;
- }
- } else {
- /* MMU disabled or not available. */
- address &= TARGET_PAGE_MASK;
- prot = PAGE_BITS;
- tlb_set_page(cs, address, address, prot, mmu_idx, TARGET_PAGE_SIZE);
- r = 0;
- }
- return r;
-}
-
-void mb_cpu_do_interrupt(CPUState *cs)
-{
- MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs);
- CPUMBState *env = &cpu->env;
- uint32_t t;
-
- /* IMM flag cannot propagate across a branch and into the dslot. */
- assert(!((env->iflags & D_FLAG) && (env->iflags & IMM_FLAG)));
- assert(!(env->iflags & (DRTI_FLAG | DRTE_FLAG | DRTB_FLAG)));
-/* assert(env->sregs[SR_MSR] & (MSR_EE)); Only for HW exceptions. */
- env->res_addr = RES_ADDR_NONE;
- switch (cs->exception_index) {
- case EXCP_HW_EXCP:
- if (!(env->pvr.regs[0] & PVR0_USE_EXC_MASK)) {
- qemu_log_mask(LOG_GUEST_ERROR, "Exception raised on system without exceptions!\n");
- return;
- }
-
- env->regs[17] = env->sregs[SR_PC] + 4;
- env->sregs[SR_ESR] &= ~(1 << 12);
-
- /* Exception breaks branch + dslot sequence? */
- if (env->iflags & D_FLAG) {
- env->sregs[SR_ESR] |= 1 << 12 ;
- env->sregs[SR_BTR] = env->btarget;
- }
-
- /* Disable the MMU. */
- t = (env->sregs[SR_MSR] & (MSR_VM | MSR_UM)) << 1;
- env->sregs[SR_MSR] &= ~(MSR_VMS | MSR_UMS | MSR_VM | MSR_UM);
- env->sregs[SR_MSR] |= t;
- /* Exception in progress. */
- env->sregs[SR_MSR] |= MSR_EIP;
-
- qemu_log_mask(CPU_LOG_INT,
- "hw exception at pc=%x ear=%x esr=%x iflags=%x\n",
- env->sregs[SR_PC], env->sregs[SR_EAR],
- env->sregs[SR_ESR], env->iflags);
- log_cpu_state_mask(CPU_LOG_INT, cs, 0);
- env->iflags &= ~(IMM_FLAG | D_FLAG);
- env->sregs[SR_PC] = cpu->cfg.base_vectors + 0x20;
- break;
-
- case EXCP_MMU:
- env->regs[17] = env->sregs[SR_PC];
-
- env->sregs[SR_ESR] &= ~(1 << 12);
- /* Exception breaks branch + dslot sequence? */
- if (env->iflags & D_FLAG) {
- D(qemu_log("D_FLAG set at exception bimm=%d\n", env->bimm));
- env->sregs[SR_ESR] |= 1 << 12 ;
- env->sregs[SR_BTR] = env->btarget;
-
- /* Reexecute the branch. */
- env->regs[17] -= 4;
- /* was the branch immprefixed?. */
- if (env->bimm) {
- qemu_log_mask(CPU_LOG_INT,
- "bimm exception at pc=%x iflags=%x\n",
- env->sregs[SR_PC], env->iflags);
- env->regs[17] -= 4;
- log_cpu_state_mask(CPU_LOG_INT, cs, 0);
- }
- } else if (env->iflags & IMM_FLAG) {
- D(qemu_log("IMM_FLAG set at exception\n"));
- env->regs[17] -= 4;
- }
-
- /* Disable the MMU. */
- t = (env->sregs[SR_MSR] & (MSR_VM | MSR_UM)) << 1;
- env->sregs[SR_MSR] &= ~(MSR_VMS | MSR_UMS | MSR_VM | MSR_UM);
- env->sregs[SR_MSR] |= t;
- /* Exception in progress. */
- env->sregs[SR_MSR] |= MSR_EIP;
-
- qemu_log_mask(CPU_LOG_INT,
- "exception at pc=%x ear=%x iflags=%x\n",
- env->sregs[SR_PC], env->sregs[SR_EAR], env->iflags);
- log_cpu_state_mask(CPU_LOG_INT, cs, 0);
- env->iflags &= ~(IMM_FLAG | D_FLAG);
- env->sregs[SR_PC] = cpu->cfg.base_vectors + 0x20;
- break;
-
- case EXCP_IRQ:
- assert(!(env->sregs[SR_MSR] & (MSR_EIP | MSR_BIP)));
- assert(env->sregs[SR_MSR] & MSR_IE);
- assert(!(env->iflags & D_FLAG));
-
- t = (env->sregs[SR_MSR] & (MSR_VM | MSR_UM)) << 1;
-
-#if 0
-#include "disas/disas.h"
-
-/* Useful instrumentation when debugging interrupt issues in either
- the models or in sw. */
- {
- const char *sym;
-
- sym = lookup_symbol(env->sregs[SR_PC]);
- if (sym
- && (!strcmp("netif_rx", sym)
- || !strcmp("process_backlog", sym))) {
-
- qemu_log(
- "interrupt at pc=%x msr=%x %x iflags=%x sym=%s\n",
- env->sregs[SR_PC], env->sregs[SR_MSR], t, env->iflags,
- sym);
-
- log_cpu_state(cs, 0);
- }
- }
-#endif
- qemu_log_mask(CPU_LOG_INT,
- "interrupt at pc=%x msr=%x %x iflags=%x\n",
- env->sregs[SR_PC], env->sregs[SR_MSR], t, env->iflags);
-
- env->sregs[SR_MSR] &= ~(MSR_VMS | MSR_UMS | MSR_VM \
- | MSR_UM | MSR_IE);
- env->sregs[SR_MSR] |= t;
-
- env->regs[14] = env->sregs[SR_PC];
- env->sregs[SR_PC] = cpu->cfg.base_vectors + 0x10;
- //log_cpu_state_mask(CPU_LOG_INT, cs, 0);
- break;
-
- case EXCP_BREAK:
- case EXCP_HW_BREAK:
- assert(!(env->iflags & IMM_FLAG));
- assert(!(env->iflags & D_FLAG));
- t = (env->sregs[SR_MSR] & (MSR_VM | MSR_UM)) << 1;
- qemu_log_mask(CPU_LOG_INT,
- "break at pc=%x msr=%x %x iflags=%x\n",
- env->sregs[SR_PC], env->sregs[SR_MSR], t, env->iflags);
- log_cpu_state_mask(CPU_LOG_INT, cs, 0);
- env->sregs[SR_MSR] &= ~(MSR_VMS | MSR_UMS | MSR_VM | MSR_UM);
- env->sregs[SR_MSR] |= t;
- env->sregs[SR_MSR] |= MSR_BIP;
- if (cs->exception_index == EXCP_HW_BREAK) {
- env->regs[16] = env->sregs[SR_PC];
- env->sregs[SR_MSR] |= MSR_BIP;
- env->sregs[SR_PC] = cpu->cfg.base_vectors + 0x18;
- } else
- env->sregs[SR_PC] = env->btarget;
- break;
- default:
- cpu_abort(cs, "unhandled exception type=%d\n",
- cs->exception_index);
- break;
- }
-}
-
-hwaddr mb_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
-{
- MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs);
- CPUMBState *env = &cpu->env;
- target_ulong vaddr, paddr = 0;
- struct microblaze_mmu_lookup lu;
- unsigned int hit;
-
- if (env->sregs[SR_MSR] & MSR_VM) {
- hit = mmu_translate(&env->mmu, &lu, addr, 0, 0);
- if (hit) {
- vaddr = addr & TARGET_PAGE_MASK;
- paddr = lu.paddr + vaddr - lu.vaddr;
- } else
- paddr = 0; /* ???. */
- } else
- paddr = addr & TARGET_PAGE_MASK;
-
- return paddr;
-}
-#endif
-
-bool mb_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
-{
- MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs);
- CPUMBState *env = &cpu->env;
-
- if ((interrupt_request & CPU_INTERRUPT_HARD)
- && (env->sregs[SR_MSR] & MSR_IE)
- && !(env->sregs[SR_MSR] & (MSR_EIP | MSR_BIP))
- && !(env->iflags & (D_FLAG | IMM_FLAG))) {
- cs->exception_index = EXCP_IRQ;
- mb_cpu_do_interrupt(cs);
- return true;
- }
- return false;
-}