aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorJia Liu <proljc@gmail.com>2012-07-20 15:50:39 +0800
committerBlue Swirl <blauwirbel@gmail.com>2012-07-27 21:12:55 +0000
commite67db06e9f6d7e514ee2a9b9b769ecd42977f6fb (patch)
treef88e6d688b8435d6038328b5e75cc078f4c77e05
parenta21143486b9c6d7a50b7b62877c02b3c686943cb (diff)
downloadqemu-arm-e67db06e9f6d7e514ee2a9b9b769ecd42977f6fb.tar.gz
target-or32: Add target stubs and QOM cpu
Add OpenRISC target stubs, QOM cpu and basic machine. Signed-off-by: Jia Liu <proljc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
-rw-r--r--arch_init.c2
-rw-r--r--arch_init.h1
-rwxr-xr-xconfigure14
-rw-r--r--cpu-exec.c2
-rw-r--r--default-configs/or32-softmmu.mak4
-rw-r--r--elf.h2
-rw-r--r--hw/openrisc/Makefile.objs1
-rw-r--r--poison.h1
-rw-r--r--target-openrisc/Makefile.objs3
-rw-r--r--target-openrisc/cpu.c220
-rw-r--r--target-openrisc/cpu.h335
-rw-r--r--target-openrisc/interrupt.c30
-rw-r--r--target-openrisc/machine.c47
-rw-r--r--target-openrisc/mmu.c39
-rw-r--r--target-openrisc/mmu_helper.c43
-rw-r--r--target-openrisc/translate.c75
16 files changed, 817 insertions, 2 deletions
diff --git a/arch_init.c b/arch_init.c
index 5b0f5626a9..ebdad3a57d 100644
--- a/arch_init.c
+++ b/arch_init.c
@@ -79,6 +79,8 @@ int graphic_depth = 15;
#define QEMU_ARCH QEMU_ARCH_MICROBLAZE
#elif defined(TARGET_MIPS)
#define QEMU_ARCH QEMU_ARCH_MIPS
+#elif defined(TARGET_OPENRISC)
+#define QEMU_ARCH QEMU_ARCH_OPENRISC
#elif defined(TARGET_PPC)
#define QEMU_ARCH QEMU_ARCH_PPC
#elif defined(TARGET_S390X)
diff --git a/arch_init.h b/arch_init.h
index c7cb94a932..3dfea3b4f3 100644
--- a/arch_init.h
+++ b/arch_init.h
@@ -16,6 +16,7 @@ enum {
QEMU_ARCH_SH4 = 1024,
QEMU_ARCH_SPARC = 2048,
QEMU_ARCH_XTENSA = 4096,
+ QEMU_ARCH_OPENRISC = 8192,
};
extern const uint32_t arch_type;
diff --git a/configure b/configure
index cef0a71a27..ec8b04919c 100755
--- a/configure
+++ b/configure
@@ -924,6 +924,7 @@ mips-softmmu \
mipsel-softmmu \
mips64-softmmu \
mips64el-softmmu \
+or32-softmmu \
ppc-softmmu \
ppcemb-softmmu \
ppc64-softmmu \
@@ -3520,7 +3521,7 @@ target_arch2=`echo $target | cut -d '-' -f 1`
target_bigendian="no"
case "$target_arch2" in
- armeb|lm32|m68k|microblaze|mips|mipsn32|mips64|ppc|ppcemb|ppc64|ppc64abi32|s390x|sh4eb|sparc|sparc64|sparc32plus|xtensaeb)
+ armeb|lm32|m68k|microblaze|mips|mipsn32|mips64|or32|ppc|ppcemb|ppc64|ppc64abi32|s390x|sh4eb|sparc|sparc64|sparc32plus|xtensaeb)
target_bigendian=yes
;;
esac
@@ -3636,6 +3637,11 @@ case "$target_arch2" in
target_phys_bits=64
target_long_alignment=8
;;
+ or32)
+ TARGET_ARCH=openrisc
+ TARGET_BASE_ARCH=openrisc
+ target_phys_bits=32
+ ;;
ppc)
gdb_xml_files="power-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
target_phys_bits=64
@@ -3714,7 +3720,7 @@ symlink "$source_path/Makefile.target" "$target_dir/Makefile"
case "$target_arch2" in
- alpha | sparc* | xtensa* | ppc*)
+ alpha | or32 | sparc* | xtensa* | ppc*)
echo "CONFIG_TCG_PASS_AREG0=y" >> $config_target_mak
;;
esac
@@ -3888,6 +3894,10 @@ for i in $ARCH $TARGET_BASE_ARCH ; do
echo "CONFIG_MIPS_DIS=y" >> $config_target_mak
echo "CONFIG_MIPS_DIS=y" >> $libdis_config_mak
;;
+ or32)
+ echo "CONFIG_OPENRISC_DIS=y" >> $config_target_mak
+ echo "CONFIG_OPENRISC_DIS=y" >> $libdis_config_mak
+ ;;
ppc*)
echo "CONFIG_PPC_DIS=y" >> $config_target_mak
echo "CONFIG_PPC_DIS=y" >> $libdis_config_mak
diff --git a/cpu-exec.c b/cpu-exec.c
index fc185a4f04..bc47114d6d 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -225,6 +225,7 @@ int cpu_exec(CPUArchState *env)
#elif defined(TARGET_LM32)
#elif defined(TARGET_MICROBLAZE)
#elif defined(TARGET_MIPS)
+#elif defined(TARGET_OPENRISC)
#elif defined(TARGET_SH4)
#elif defined(TARGET_CRIS)
#elif defined(TARGET_S390X)
@@ -640,6 +641,7 @@ int cpu_exec(CPUArchState *env)
| env->cc_dest | (env->cc_x << 4);
#elif defined(TARGET_MICROBLAZE)
#elif defined(TARGET_MIPS)
+#elif defined(TARGET_OPENRISC)
#elif defined(TARGET_SH4)
#elif defined(TARGET_ALPHA)
#elif defined(TARGET_CRIS)
diff --git a/default-configs/or32-softmmu.mak b/default-configs/or32-softmmu.mak
new file mode 100644
index 0000000000..cce474672a
--- /dev/null
+++ b/default-configs/or32-softmmu.mak
@@ -0,0 +1,4 @@
+# Default configuration for or32-softmmu
+
+CONFIG_SERIAL=y
+CONFIG_OPENCORES_ETH=y
diff --git a/elf.h b/elf.h
index 9c9acfaf75..a21ea535bd 100644
--- a/elf.h
+++ b/elf.h
@@ -106,6 +106,8 @@ typedef int64_t Elf64_Sxword;
#define EM_H8S 48 /* Hitachi H8S */
#define EM_LATTICEMICO32 138 /* LatticeMico32 */
+#define EM_OPENRISC 92 /* OpenCores OpenRISC */
+
#define EM_UNICORE32 110 /* UniCore32 */
/*
diff --git a/hw/openrisc/Makefile.objs b/hw/openrisc/Makefile.objs
new file mode 100644
index 0000000000..bfead214fc
--- /dev/null
+++ b/hw/openrisc/Makefile.objs
@@ -0,0 +1 @@
+obj-y := $(addprefix ../,$(obj-y))
diff --git a/poison.h b/poison.h
index d396f20ca4..7d7b23b1fc 100644
--- a/poison.h
+++ b/poison.h
@@ -14,6 +14,7 @@
#pragma GCC poison TARGET_M68K
#pragma GCC poison TARGET_MIPS
#pragma GCC poison TARGET_MIPS64
+#pragma GCC poison TARGET_OPENRISC
#pragma GCC poison TARGET_PPC
#pragma GCC poison TARGET_PPCEMB
#pragma GCC poison TARGET_PPC64
diff --git a/target-openrisc/Makefile.objs b/target-openrisc/Makefile.objs
new file mode 100644
index 0000000000..ef933effa6
--- /dev/null
+++ b/target-openrisc/Makefile.objs
@@ -0,0 +1,3 @@
+obj-$(CONFIG_SOFTMMU) += machine.o
+obj-y += cpu.o interrupt.o mmu.o translate.o
+obj-y += mmu_helper.o
diff --git a/target-openrisc/cpu.c b/target-openrisc/cpu.c
new file mode 100644
index 0000000000..ba35b17581
--- /dev/null
+++ b/target-openrisc/cpu.c
@@ -0,0 +1,220 @@
+/*
+ * QEMU OpenRISC CPU
+ *
+ * Copyright (c) 2012 Jia Liu <proljc@gmail.com>
+ *
+ * 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 "cpu.h"
+#include "qemu-common.h"
+
+/* CPUClass::reset() */
+static void openrisc_cpu_reset(CPUState *s)
+{
+ OpenRISCCPU *cpu = OPENRISC_CPU(s);
+ OpenRISCCPUClass *occ = OPENRISC_CPU_GET_CLASS(cpu);
+
+ if (qemu_loglevel_mask(CPU_LOG_RESET)) {
+ qemu_log("CPU Reset (CPU %d)\n", cpu->env.cpu_index);
+ log_cpu_state(&cpu->env, 0);
+ }
+
+ occ->parent_reset(s);
+
+ memset(&cpu->env, 0, offsetof(CPUOpenRISCState, breakpoints));
+
+ tlb_flush(&cpu->env, 1);
+ /*tb_flush(&cpu->env); FIXME: Do we need it? */
+
+ cpu->env.pc = 0x100;
+ cpu->env.sr = SR_FO | SR_SM;
+ cpu->env.exception_index = -1;
+
+ cpu->env.upr = UPR_UP | UPR_DMP | UPR_IMP | UPR_PICP | UPR_TTP;
+ cpu->env.cpucfgr = CPUCFGR_OB32S | CPUCFGR_OF32S;
+ cpu->env.dmmucfgr = (DMMUCFGR_NTW & (0 << 2)) | (DMMUCFGR_NTS & (6 << 2));
+ cpu->env.immucfgr = (IMMUCFGR_NTW & (0 << 2)) | (IMMUCFGR_NTS & (6 << 2));
+
+#ifndef CONFIG_USER_ONLY
+ cpu->env.picmr = 0x00000000;
+ cpu->env.picsr = 0x00000000;
+
+ cpu->env.ttmr = 0x00000000;
+ cpu->env.ttcr = 0x00000000;
+#endif
+}
+
+static inline void set_feature(OpenRISCCPU *cpu, int feature)
+{
+ cpu->feature |= feature;
+ cpu->env.cpucfgr = cpu->feature;
+}
+
+void openrisc_cpu_realize(Object *obj, Error **errp)
+{
+ OpenRISCCPU *cpu = OPENRISC_CPU(obj);
+
+ qemu_init_vcpu(&cpu->env);
+ cpu_reset(CPU(cpu));
+}
+
+static void openrisc_cpu_initfn(Object *obj)
+{
+ OpenRISCCPU *cpu = OPENRISC_CPU(obj);
+ static int inited;
+
+ cpu_exec_init(&cpu->env);
+
+#ifndef CONFIG_USER_ONLY
+ cpu_openrisc_mmu_init(cpu);
+#endif
+
+ if (tcg_enabled() && !inited) {
+ inited = 1;
+ openrisc_translate_init();
+ }
+}
+
+/* CPU models */
+static void or1200_initfn(Object *obj)
+{
+ OpenRISCCPU *cpu = OPENRISC_CPU(obj);
+
+ set_feature(cpu, OPENRISC_FEATURE_OB32S);
+ set_feature(cpu, OPENRISC_FEATURE_OF32S);
+}
+
+static void openrisc_any_initfn(Object *obj)
+{
+ OpenRISCCPU *cpu = OPENRISC_CPU(obj);
+
+ set_feature(cpu, OPENRISC_FEATURE_OB32S);
+}
+
+typedef struct OpenRISCCPUInfo {
+ const char *name;
+ void (*initfn)(Object *obj);
+} OpenRISCCPUInfo;
+
+static const OpenRISCCPUInfo openrisc_cpus[] = {
+ { .name = "or1200", .initfn = or1200_initfn },
+ { .name = "any", .initfn = openrisc_any_initfn },
+};
+
+static void openrisc_cpu_class_init(ObjectClass *oc, void *data)
+{
+ OpenRISCCPUClass *occ = OPENRISC_CPU_CLASS(oc);
+ CPUClass *cc = CPU_CLASS(occ);
+
+ occ->parent_reset = cc->reset;
+ cc->reset = openrisc_cpu_reset;
+}
+
+static void cpu_register(const OpenRISCCPUInfo *info)
+{
+ TypeInfo type_info = {
+ .name = info->name,
+ .parent = TYPE_OPENRISC_CPU,
+ .instance_size = sizeof(OpenRISCCPU),
+ .instance_init = info->initfn,
+ .class_size = sizeof(OpenRISCCPUClass),
+ };
+
+ type_register_static(&type_info);
+}
+
+static const TypeInfo openrisc_cpu_type_info = {
+ .name = TYPE_OPENRISC_CPU,
+ .parent = TYPE_CPU,
+ .instance_size = sizeof(OpenRISCCPU),
+ .instance_init = openrisc_cpu_initfn,
+ .abstract = false,
+ .class_size = sizeof(OpenRISCCPUClass),
+ .class_init = openrisc_cpu_class_init,
+};
+
+static void openrisc_cpu_register_types(void)
+{
+ int i;
+
+ type_register_static(&openrisc_cpu_type_info);
+ for (i = 0; i < ARRAY_SIZE(openrisc_cpus); i++) {
+ cpu_register(&openrisc_cpus[i]);
+ }
+}
+
+OpenRISCCPU *cpu_openrisc_init(const char *cpu_model)
+{
+ OpenRISCCPU *cpu;
+
+ if (!object_class_by_name(cpu_model)) {
+ return NULL;
+ }
+ cpu = OPENRISC_CPU(object_new(cpu_model));
+ cpu->env.cpu_model_str = cpu_model;
+
+ openrisc_cpu_realize(OBJECT(cpu), NULL);
+
+ return cpu;
+}
+
+typedef struct OpenRISCCPUList {
+ fprintf_function cpu_fprintf;
+ FILE *file;
+} OpenRISCCPUList;
+
+/* Sort alphabetically by type name, except for "any". */
+static gint openrisc_cpu_list_compare(gconstpointer a, gconstpointer b)
+{
+ ObjectClass *class_a = (ObjectClass *)a;
+ ObjectClass *class_b = (ObjectClass *)b;
+ const char *name_a, *name_b;
+
+ name_a = object_class_get_name(class_a);
+ name_b = object_class_get_name(class_b);
+ if (strcmp(name_a, "any") == 0) {
+ return 1;
+ } else if (strcmp(name_b, "any") == 0) {
+ return -1;
+ } else {
+ return strcmp(name_a, name_b);
+ }
+}
+
+static void openrisc_cpu_list_entry(gpointer data, gpointer user_data)
+{
+ ObjectClass *oc = data;
+ OpenRISCCPUList *s = user_data;
+
+ (*s->cpu_fprintf)(s->file, " %s\n",
+ object_class_get_name(oc));
+}
+
+void cpu_openrisc_list(FILE *f, fprintf_function cpu_fprintf)
+{
+ OpenRISCCPUList s = {
+ .file = f,
+ .cpu_fprintf = cpu_fprintf,
+ };
+ GSList *list;
+
+ list = object_class_get_list(TYPE_OPENRISC_CPU, false);
+ list = g_slist_sort(list, openrisc_cpu_list_compare);
+ (*cpu_fprintf)(f, "Available CPUs:\n");
+ g_slist_foreach(list, openrisc_cpu_list_entry, &s);
+ g_slist_free(list);
+}
+
+type_init(openrisc_cpu_register_types)
diff --git a/target-openrisc/cpu.h b/target-openrisc/cpu.h
new file mode 100644
index 0000000000..58c63fa6c1
--- /dev/null
+++ b/target-openrisc/cpu.h
@@ -0,0 +1,335 @@
+/*
+ * OpenRISC virtual CPU header.
+ *
+ * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com>
+ *
+ * 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/>.
+ */
+
+#ifndef CPU_OPENRISC_H
+#define CPU_OPENRISC_H
+
+#define TARGET_LONG_BITS 32
+#define ELF_MACHINE EM_OPENRISC
+
+#define CPUArchState struct CPUOpenRISCState
+
+#include "config.h"
+#include "qemu-common.h"
+#include "cpu-defs.h"
+#include "softfloat.h"
+#include "qemu/cpu.h"
+#include "error.h"
+
+#define TYPE_OPENRISC_CPU "or32-cpu"
+
+#define OPENRISC_CPU_CLASS(klass) \
+ OBJECT_CLASS_CHECK(OpenRISCCPUClass, (klass), TYPE_OPENRISC_CPU)
+#define OPENRISC_CPU(obj) \
+ OBJECT_CHECK(OpenRISCCPU, (obj), TYPE_OPENRISC_CPU)
+#define OPENRISC_CPU_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(OpenRISCCPUClass, (obj), TYPE_OPENRISC_CPU)
+
+/**
+ * OpenRISCCPUClass:
+ * @parent_reset: The parent class' reset handler.
+ *
+ * A OpenRISC CPU model.
+ */
+typedef struct OpenRISCCPUClass {
+ /*< private >*/
+ CPUClass parent_class;
+ /*< public >*/
+
+ void (*parent_reset)(CPUState *cpu);
+} OpenRISCCPUClass;
+
+#define NB_MMU_MODES 3
+
+#define TARGET_PAGE_BITS 13
+
+#define TARGET_PHYS_ADDR_SPACE_BITS 32
+#define TARGET_VIRT_ADDR_SPACE_BITS 32
+
+#define SET_FP_CAUSE(reg, v) do {\
+ (reg) = ((reg) & ~(0x3f << 12)) | \
+ ((v & 0x3f) << 12);\
+ } while (0)
+#define GET_FP_ENABLE(reg) (((reg) >> 7) & 0x1f)
+#define UPDATE_FP_FLAGS(reg, v) do {\
+ (reg) |= ((v & 0x1f) << 2);\
+ } while (0)
+
+/* Internal flags, delay slot flag */
+#define D_FLAG 1
+
+/* Registers */
+enum {
+ R0 = 0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10,
+ R11, R12, R13, R14, R15, R16, R17, R18, R19, R20,
+ R21, R22, R23, R24, R25, R26, R27, R28, R29, R30,
+ R31
+};
+
+/* Register aliases */
+enum {
+ R_ZERO = R0,
+ R_SP = R1,
+ R_FP = R2,
+ R_LR = R9,
+ R_RV = R11,
+ R_RVH = R12
+};
+
+/* Unit presece register */
+enum {
+ UPR_UP = (1 << 0),
+ UPR_DCP = (1 << 1),
+ UPR_ICP = (1 << 2),
+ UPR_DMP = (1 << 3),
+ UPR_IMP = (1 << 4),
+ UPR_MP = (1 << 5),
+ UPR_DUP = (1 << 6),
+ UPR_PCUR = (1 << 7),
+ UPR_PMP = (1 << 8),
+ UPR_PICP = (1 << 9),
+ UPR_TTP = (1 << 10),
+ UPR_CUP = (255 << 24),
+};
+
+/* CPU configure register */
+enum {
+ CPUCFGR_NSGF = (15 << 0),
+ CPUCFGR_CGF = (1 << 4),
+ CPUCFGR_OB32S = (1 << 5),
+ CPUCFGR_OB64S = (1 << 6),
+ CPUCFGR_OF32S = (1 << 7),
+ CPUCFGR_OF64S = (1 << 8),
+ CPUCFGR_OV64S = (1 << 9),
+};
+
+/* DMMU configure register */
+enum {
+ DMMUCFGR_NTW = (3 << 0),
+ DMMUCFGR_NTS = (7 << 2),
+ DMMUCFGR_NAE = (7 << 5),
+ DMMUCFGR_CRI = (1 << 8),
+ DMMUCFGR_PRI = (1 << 9),
+ DMMUCFGR_TEIRI = (1 << 10),
+ DMMUCFGR_HTR = (1 << 11),
+};
+
+/* IMMU configure register */
+enum {
+ IMMUCFGR_NTW = (3 << 0),
+ IMMUCFGR_NTS = (7 << 2),
+ IMMUCFGR_NAE = (7 << 5),
+ IMMUCFGR_CRI = (1 << 8),
+ IMMUCFGR_PRI = (1 << 9),
+ IMMUCFGR_TEIRI = (1 << 10),
+ IMMUCFGR_HTR = (1 << 11),
+};
+
+/* Float point control status register */
+enum {
+ FPCSR_FPEE = 1,
+ FPCSR_RM = (3 << 1),
+ FPCSR_OVF = (1 << 3),
+ FPCSR_UNF = (1 << 4),
+ FPCSR_SNF = (1 << 5),
+ FPCSR_QNF = (1 << 6),
+ FPCSR_ZF = (1 << 7),
+ FPCSR_IXF = (1 << 8),
+ FPCSR_IVF = (1 << 9),
+ FPCSR_INF = (1 << 10),
+ FPCSR_DZF = (1 << 11),
+};
+
+/* Exceptions indices */
+enum {
+ EXCP_RESET = 0x1,
+ EXCP_BUSERR = 0x2,
+ EXCP_DPF = 0x3,
+ EXCP_IPF = 0x4,
+ EXCP_TICK = 0x5,
+ EXCP_ALIGN = 0x6,
+ EXCP_ILLEGAL = 0x7,
+ EXCP_INT = 0x8,
+ EXCP_DTLBMISS = 0x9,
+ EXCP_ITLBMISS = 0xa,
+ EXCP_RANGE = 0xb,
+ EXCP_SYSCALL = 0xc,
+ EXCP_FPE = 0xd,
+ EXCP_TRAP = 0xe,
+ EXCP_NR,
+};
+
+/* Supervisor register */
+enum {
+ SR_SM = (1 << 0),
+ SR_TEE = (1 << 1),
+ SR_IEE = (1 << 2),
+ SR_DCE = (1 << 3),
+ SR_ICE = (1 << 4),
+ SR_DME = (1 << 5),
+ SR_IME = (1 << 6),
+ SR_LEE = (1 << 7),
+ SR_CE = (1 << 8),
+ SR_F = (1 << 9),
+ SR_CY = (1 << 10),
+ SR_OV = (1 << 11),
+ SR_OVE = (1 << 12),
+ SR_DSX = (1 << 13),
+ SR_EPH = (1 << 14),
+ SR_FO = (1 << 15),
+ SR_SUMRA = (1 << 16),
+ SR_SCE = (1 << 17),
+};
+
+/* OpenRISC Hardware Capabilities */
+enum {
+ OPENRISC_FEATURE_NSGF = (15 << 0),
+ OPENRISC_FEATURE_CGF = (1 << 4),
+ OPENRISC_FEATURE_OB32S = (1 << 5),
+ OPENRISC_FEATURE_OB64S = (1 << 6),
+ OPENRISC_FEATURE_OF32S = (1 << 7),
+ OPENRISC_FEATURE_OF64S = (1 << 8),
+ OPENRISC_FEATURE_OV64S = (1 << 9),
+};
+
+typedef struct CPUOpenRISCState {
+ target_ulong gpr[32]; /* General registers */
+ target_ulong pc; /* Program counter */
+ target_ulong npc; /* Next PC */
+ target_ulong ppc; /* Prev PC */
+ target_ulong jmp_pc; /* Jump PC */
+
+ target_ulong machi; /* Multiply register MACHI */
+ target_ulong maclo; /* Multiply register MACLO */
+
+ target_ulong fpmaddhi; /* Multiply and add float register FPMADDHI */
+ target_ulong fpmaddlo; /* Multiply and add float register FPMADDLO */
+
+ target_ulong epcr; /* Exception PC register */
+ target_ulong eear; /* Exception EA register */
+
+ uint32_t sr; /* Supervisor register */
+ uint32_t vr; /* Version register */
+ uint32_t upr; /* Unit presence register */
+ uint32_t cpucfgr; /* CPU configure register */
+ uint32_t dmmucfgr; /* DMMU configure register */
+ uint32_t immucfgr; /* IMMU configure register */
+ uint32_t esr; /* Exception supervisor register */
+ uint32_t fpcsr; /* Float register */
+ float_status fp_status;
+
+ uint32_t flags; /* cpu_flags, we only use it for exception
+ in solt so far. */
+ uint32_t btaken; /* the SR_F bit */
+
+ CPU_COMMON
+
+#ifndef CONFIG_USER_ONLY
+ struct QEMUTimer *timer;
+ uint32_t ttmr; /* Timer tick mode register */
+ uint32_t ttcr; /* Timer tick count register */
+
+ uint32_t picmr; /* Interrupt mask register */
+ uint32_t picsr; /* Interrupt contrl register*/
+#endif
+} CPUOpenRISCState;
+
+/**
+ * OpenRISCCPU:
+ * @env: #CPUOpenRISCState
+ *
+ * A OpenRISC CPU.
+ */
+typedef struct OpenRISCCPU {
+ /*< private >*/
+ CPUState parent_obj;
+ /*< public >*/
+
+ CPUOpenRISCState env;
+
+ uint32_t feature; /* CPU Capabilities */
+} OpenRISCCPU;
+
+static inline OpenRISCCPU *openrisc_env_get_cpu(CPUOpenRISCState *env)
+{
+ return OPENRISC_CPU(container_of(env, OpenRISCCPU, env));
+}
+
+#define ENV_GET_CPU(e) CPU(openrisc_env_get_cpu(e))
+
+OpenRISCCPU *cpu_openrisc_init(const char *cpu_model);
+void openrisc_cpu_realize(Object *obj, Error **errp);
+
+void cpu_openrisc_list(FILE *f, fprintf_function cpu_fprintf);
+int cpu_openrisc_exec(CPUOpenRISCState *s);
+void do_interrupt(CPUOpenRISCState *env);
+void openrisc_translate_init(void);
+
+#define cpu_list cpu_openrisc_list
+#define cpu_exec cpu_openrisc_exec
+#define cpu_gen_code cpu_openrisc_gen_code
+
+#ifndef CONFIG_USER_ONLY
+void cpu_openrisc_mmu_init(OpenRISCCPU *cpu);
+#endif
+
+static inline CPUOpenRISCState *cpu_init(const char *cpu_model)
+{
+ OpenRISCCPU *cpu = cpu_openrisc_init(cpu_model);
+ if (cpu) {
+ return &cpu->env;
+ }
+ return NULL;
+}
+
+#include "cpu-all.h"
+
+static inline void cpu_get_tb_cpu_state(CPUOpenRISCState *env,
+ target_ulong *pc,
+ target_ulong *cs_base, int *flags)
+{
+ *pc = env->pc;
+ *cs_base = 0;
+ /* D_FLAG -- branch instruction exception */
+ *flags = (env->flags & D_FLAG);
+}
+
+static inline int cpu_mmu_index(CPUOpenRISCState *env)
+{
+ return 0;
+}
+
+static inline bool cpu_has_work(CPUOpenRISCState *env)
+{
+ return true;
+}
+
+#include "exec-all.h"
+
+static inline target_ulong cpu_get_pc(CPUOpenRISCState *env)
+{
+ return env->pc;
+}
+
+static inline void cpu_pc_from_tb(CPUOpenRISCState *env, TranslationBlock *tb)
+{
+ env->pc = tb->pc;
+}
+
+#endif /* CPU_OPENRISC_H */
diff --git a/target-openrisc/interrupt.c b/target-openrisc/interrupt.c
new file mode 100644
index 0000000000..7a9ee0bcb7
--- /dev/null
+++ b/target-openrisc/interrupt.c
@@ -0,0 +1,30 @@
+/*
+ * OpenRISC interrupt.
+ *
+ * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com>
+ *
+ * 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 "cpu.h"
+#include "qemu-common.h"
+#include "gdbstub.h"
+#include "host-utils.h"
+#ifndef CONFIG_USER_ONLY
+#include "hw/loader.h"
+#endif
+
+void do_interrupt(CPUOpenRISCState *env)
+{
+}
diff --git a/target-openrisc/machine.c b/target-openrisc/machine.c
new file mode 100644
index 0000000000..cba9811ea5
--- /dev/null
+++ b/target-openrisc/machine.c
@@ -0,0 +1,47 @@
+/*
+ * OpenRISC Machine
+ *
+ * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com>
+ *
+ * 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 "hw/hw.h"
+#include "hw/boards.h"
+
+static const VMStateDescription vmstate_cpu = {
+ .name = "cpu",
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32_ARRAY(gpr, CPUOpenRISCState, 32),
+ VMSTATE_UINT32(sr, CPUOpenRISCState),
+ VMSTATE_UINT32(epcr, CPUOpenRISCState),
+ VMSTATE_UINT32(eear, CPUOpenRISCState),
+ VMSTATE_UINT32(esr, CPUOpenRISCState),
+ VMSTATE_UINT32(fpcsr, CPUOpenRISCState),
+ VMSTATE_UINT32(pc, CPUOpenRISCState),
+ VMSTATE_UINT32(npc, CPUOpenRISCState),
+ VMSTATE_UINT32(ppc, CPUOpenRISCState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+void cpu_save(QEMUFile *f, void *opaque)
+{
+ vmstate_save_state(f, &vmstate_cpu, opaque);
+}
+
+int cpu_load(QEMUFile *f, void *opaque, int version_id)
+{
+ return vmstate_load_state(f, &vmstate_cpu, opaque, version_id);
+}
diff --git a/target-openrisc/mmu.c b/target-openrisc/mmu.c
new file mode 100644
index 0000000000..1a72aaaf30
--- /dev/null
+++ b/target-openrisc/mmu.c
@@ -0,0 +1,39 @@
+/*
+ * OpenRISC MMU.
+ *
+ * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com>
+ * Zhizhou Zhang <etouzh@gmail.com>
+ *
+ * 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 "cpu.h"
+#include "qemu-common.h"
+#include "gdbstub.h"
+#include "host-utils.h"
+#ifndef CONFIG_USER_ONLY
+#include "hw/loader.h"
+#endif
+
+#ifndef CONFIG_USER_ONLY
+target_phys_addr_t cpu_get_phys_page_debug(CPUOpenRISCState *env,
+ target_ulong addr)
+{
+ return addr;
+}
+
+void cpu_openrisc_mmu_init(OpenRISCCPU *cpu)
+{
+}
+#endif
diff --git a/target-openrisc/mmu_helper.c b/target-openrisc/mmu_helper.c
new file mode 100644
index 0000000000..7c28079ddb
--- /dev/null
+++ b/target-openrisc/mmu_helper.c
@@ -0,0 +1,43 @@
+/*
+ * OpenRISC MMU helper routines
+ *
+ * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com>
+ * Zhizhou Zhang <etouzh@gmail.com>
+ *
+ * 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 "cpu.h"
+
+#ifndef CONFIG_USER_ONLY
+#include "softmmu_exec.h"
+#define MMUSUFFIX _mmu
+
+#define SHIFT 0
+#include "softmmu_template.h"
+
+#define SHIFT 1
+#include "softmmu_template.h"
+
+#define SHIFT 2
+#include "softmmu_template.h"
+
+#define SHIFT 3
+#include "softmmu_template.h"
+
+void tlb_fill(CPUOpenRISCState *env, target_ulong addr, int is_write,
+ int mmu_idx, uintptr_t retaddr)
+{
+}
+#endif
diff --git a/target-openrisc/translate.c b/target-openrisc/translate.c
new file mode 100644
index 0000000000..a2b9b4f3f3
--- /dev/null
+++ b/target-openrisc/translate.c
@@ -0,0 +1,75 @@
+/*
+ * OpenRISC translation
+ *
+ * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com>
+ * Feng Gao <gf91597@gmail.com>
+ *
+ * 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 "cpu.h"
+#include "exec-all.h"
+#include "disas.h"
+#include "tcg-op.h"
+#include "qemu-common.h"
+#include "qemu-log.h"
+#include "config.h"
+
+#define OPENRISC_DISAS
+
+#ifdef OPENRISC_DISAS
+# define LOG_DIS(...) qemu_log_mask(CPU_LOG_TB_IN_ASM, ## __VA_ARGS__)
+#else
+# define LOG_DIS(...) do { } while (0)
+#endif
+
+void openrisc_translate_init(void)
+{
+}
+
+static inline void gen_intermediate_code_internal(OpenRISCCPU *cpu,
+ TranslationBlock *tb,
+ int search_pc)
+{
+}
+
+void gen_intermediate_code(CPUOpenRISCState *env, struct TranslationBlock *tb)
+{
+ gen_intermediate_code_internal(openrisc_env_get_cpu(env), tb, 0);
+}
+
+void gen_intermediate_code_pc(CPUOpenRISCState *env,
+ struct TranslationBlock *tb)
+{
+ gen_intermediate_code_internal(openrisc_env_get_cpu(env), tb, 1);
+}
+
+void cpu_dump_state(CPUOpenRISCState *env, FILE *f,
+ fprintf_function cpu_fprintf,
+ int flags)
+{
+ int i;
+ uint32_t *regs = env->gpr;
+ cpu_fprintf(f, "PC=%08x\n", env->pc);
+ for (i = 0; i < 32; ++i) {
+ cpu_fprintf(f, "R%02d=%08x%c", i, regs[i],
+ (i % 4) == 3 ? '\n' : ' ');
+ }
+}
+
+void restore_state_to_opc(CPUOpenRISCState *env, TranslationBlock *tb,
+ int pc_pos)
+{
+ env->pc = gen_opc_pc[pc_pos];
+}