bsd-user: Move per-cpu code into target_arch_cpu.h
Move cpu_loop() into target_cpu_loop(), and put that in
target_arch_cpu.h for each architecture.
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
diff --git a/bsd-user/main.c b/bsd-user/main.c
index f7c75df..3d4ed20 100644
--- a/bsd-user/main.c
+++ b/bsd-user/main.c
@@ -42,6 +42,7 @@
#include "trace/control.h"
#include "host-os.h"
+#include "target_arch_cpu.h"
#include <sys/sysctl.h>
@@ -83,178 +84,11 @@
}
}
-#ifdef TARGET_I386
-/***********************************************************/
-/* CPUX86 core interface */
-
-static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
- int flags)
+void cpu_loop(CPUArchState *env)
{
- unsigned int e1, e2;
- uint32_t *p;
- e1 = (addr << 16) | (limit & 0xffff);
- e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
- e2 |= flags;
- p = ptr;
- p[0] = tswap32(e1);
- p[1] = tswap32(e2);
+ target_cpu_loop(env);
}
-static uint64_t *idt_table;
-#ifdef TARGET_X86_64
-static void set_gate64(void *ptr, unsigned int type, unsigned int dpl,
- uint64_t addr, unsigned int sel)
-{
- uint32_t *p, e1, e2;
- e1 = (addr & 0xffff) | (sel << 16);
- e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
- p = ptr;
- p[0] = tswap32(e1);
- p[1] = tswap32(e2);
- p[2] = tswap32(addr >> 32);
- p[3] = 0;
-}
-/* only dpl matters as we do only user space emulation */
-static void set_idt(int n, unsigned int dpl)
-{
- set_gate64(idt_table + n * 2, 0, dpl, 0, 0);
-}
-#else
-static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
- uint32_t addr, unsigned int sel)
-{
- uint32_t *p, e1, e2;
- e1 = (addr & 0xffff) | (sel << 16);
- e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
- p = ptr;
- p[0] = tswap32(e1);
- p[1] = tswap32(e2);
-}
-
-/* only dpl matters as we do only user space emulation */
-static void set_idt(int n, unsigned int dpl)
-{
- set_gate(idt_table + n, 0, dpl, 0, 0);
-}
-#endif
-
-void cpu_loop(CPUX86State *env)
-{
- CPUState *cs = env_cpu(env);
- int trapnr;
- abi_ulong pc;
- /* target_siginfo_t info; */
-
- for (;;) {
- cpu_exec_start(cs);
- trapnr = cpu_exec(cs);
- cpu_exec_end(cs);
- process_queued_cpu_work(cs);
-
- switch (trapnr) {
- case 0x80:
- /* syscall from int $0x80 */
- if (bsd_type == target_freebsd) {
- abi_ulong params = (abi_ulong) env->regs[R_ESP] +
- sizeof(int32_t);
- int32_t syscall_nr = env->regs[R_EAX];
- int32_t arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8;
-
- if (syscall_nr == TARGET_FREEBSD_NR_syscall) {
- get_user_s32(syscall_nr, params);
- params += sizeof(int32_t);
- } else if (syscall_nr == TARGET_FREEBSD_NR___syscall) {
- get_user_s32(syscall_nr, params);
- params += sizeof(int64_t);
- }
- get_user_s32(arg1, params);
- params += sizeof(int32_t);
- get_user_s32(arg2, params);
- params += sizeof(int32_t);
- get_user_s32(arg3, params);
- params += sizeof(int32_t);
- get_user_s32(arg4, params);
- params += sizeof(int32_t);
- get_user_s32(arg5, params);
- params += sizeof(int32_t);
- get_user_s32(arg6, params);
- params += sizeof(int32_t);
- get_user_s32(arg7, params);
- params += sizeof(int32_t);
- get_user_s32(arg8, params);
- env->regs[R_EAX] = do_freebsd_syscall(env,
- syscall_nr,
- arg1,
- arg2,
- arg3,
- arg4,
- arg5,
- arg6,
- arg7,
- arg8);
- } else { /* if (bsd_type == target_openbsd) */
- env->regs[R_EAX] = do_openbsd_syscall(env,
- env->regs[R_EAX],
- env->regs[R_EBX],
- env->regs[R_ECX],
- env->regs[R_EDX],
- env->regs[R_ESI],
- env->regs[R_EDI],
- env->regs[R_EBP]);
- }
- if (((abi_ulong)env->regs[R_EAX]) >= (abi_ulong)(-515)) {
- env->regs[R_EAX] = -env->regs[R_EAX];
- env->eflags |= CC_C;
- } else {
- env->eflags &= ~CC_C;
- }
- break;
-#ifndef TARGET_ABI32
- case EXCP_SYSCALL:
- /* syscall from syscall instruction */
- if (bsd_type == target_freebsd) {
- env->regs[R_EAX] = do_freebsd_syscall(env,
- env->regs[R_EAX],
- env->regs[R_EDI],
- env->regs[R_ESI],
- env->regs[R_EDX],
- env->regs[R_ECX],
- env->regs[8],
- env->regs[9], 0, 0);
- } else { /* if (bsd_type == target_openbsd) */
- env->regs[R_EAX] = do_openbsd_syscall(env,
- env->regs[R_EAX],
- env->regs[R_EDI],
- env->regs[R_ESI],
- env->regs[R_EDX],
- env->regs[10],
- env->regs[8],
- env->regs[9]);
- }
- env->eip = env->exception_next_eip;
- if (((abi_ulong)env->regs[R_EAX]) >= (abi_ulong)(-515)) {
- env->regs[R_EAX] = -env->regs[R_EAX];
- env->eflags |= CC_C;
- } else {
- env->eflags &= ~CC_C;
- }
- break;
-#endif
- case EXCP_INTERRUPT:
- /* just indicate that signals should be handled asap */
- break;
- default:
- pc = env->segs[R_CS].base + env->eip;
- fprintf(stderr,
- "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
- (long)pc, trapnr);
- abort();
- }
- process_pending_signals(env);
- }
-}
-#endif
-
static void usage(void)
{
printf("qemu-" TARGET_NAME " version " QEMU_FULL_VERSION
@@ -353,7 +187,7 @@
struct target_pt_regs regs1, *regs = ®s1;
struct image_info info1, *info = &info1;
struct bsd_binprm bprm;
- TaskState ts1, *ts = &ts1;
+ TaskState *ts;
CPUArchState *env;
CPUState *cpu;
int optind, rv;
@@ -521,18 +355,11 @@
init_paths(interp_prefix);
if (cpu_model == NULL) {
-#if defined(TARGET_I386)
-#ifdef TARGET_X86_64
- cpu_model = "qemu64";
-#else
- cpu_model = "qemu32";
-#endif
-#else
- cpu_model = "any";
-#endif
+ cpu_model = TARGET_DEFAULT_CPU_MODEL;
}
cpu_type = parse_cpu_option(cpu_model);
+
/* init tcg before creating CPUs and to get qemu_host_page_size */
{
AccelClass *ac = ACCEL_GET_CLASS(current_accel());
@@ -587,6 +414,13 @@
qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry);
}
+ /* build Task State */
+ ts = g_new0(TaskState, 1);
+ init_task_state(ts);
+ ts->info = info;
+ ts->bprm = &bprm;
+ cpu->opaque = ts;
+
target_set_brk(info->brk);
syscall_init();
signal_init();
@@ -598,130 +432,7 @@
*/
tcg_prologue_init(tcg_ctx);
- /* build Task State */
- memset(ts, 0, sizeof(TaskState));
- init_task_state(ts);
- ts->info = info;
- cpu->opaque = ts;
-
-#if defined(TARGET_I386)
- env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
- env->hflags |= HF_PE_MASK | HF_CPL_MASK;
- if (env->features[FEAT_1_EDX] & CPUID_SSE) {
- env->cr[4] |= CR4_OSFXSR_MASK;
- env->hflags |= HF_OSFXSR_MASK;
- }
-#ifndef TARGET_ABI32
- /* enable 64 bit mode if possible */
- if (!(env->features[FEAT_8000_0001_EDX] & CPUID_EXT2_LM)) {
- fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n");
- exit(1);
- }
- env->cr[4] |= CR4_PAE_MASK;
- env->efer |= MSR_EFER_LMA | MSR_EFER_LME;
- env->hflags |= HF_LMA_MASK;
-#endif
-
- /* flags setup : we activate the IRQs by default as in user mode */
- env->eflags |= IF_MASK;
-
- /* linux register setup */
-#ifndef TARGET_ABI32
- env->regs[R_EAX] = regs->rax;
- env->regs[R_EBX] = regs->rbx;
- env->regs[R_ECX] = regs->rcx;
- env->regs[R_EDX] = regs->rdx;
- env->regs[R_ESI] = regs->rsi;
- env->regs[R_EDI] = regs->rdi;
- env->regs[R_EBP] = regs->rbp;
- env->regs[R_ESP] = regs->rsp;
- env->eip = regs->rip;
-#else
- env->regs[R_EAX] = regs->eax;
- env->regs[R_EBX] = regs->ebx;
- env->regs[R_ECX] = regs->ecx;
- env->regs[R_EDX] = regs->edx;
- env->regs[R_ESI] = regs->esi;
- env->regs[R_EDI] = regs->edi;
- env->regs[R_EBP] = regs->ebp;
- env->regs[R_ESP] = regs->esp;
- env->eip = regs->eip;
-#endif
-
- /* linux interrupt setup */
-#ifndef TARGET_ABI32
- env->idt.limit = 511;
-#else
- env->idt.limit = 255;
-#endif
- env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1),
- PROT_READ | PROT_WRITE,
- MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
- idt_table = g2h_untagged(env->idt.base);
- set_idt(0, 0);
- set_idt(1, 0);
- set_idt(2, 0);
- set_idt(3, 3);
- set_idt(4, 3);
- set_idt(5, 0);
- set_idt(6, 0);
- set_idt(7, 0);
- set_idt(8, 0);
- set_idt(9, 0);
- set_idt(10, 0);
- set_idt(11, 0);
- set_idt(12, 0);
- set_idt(13, 0);
- set_idt(14, 0);
- set_idt(15, 0);
- set_idt(16, 0);
- set_idt(17, 0);
- set_idt(18, 0);
- set_idt(19, 0);
- set_idt(0x80, 3);
-
- /* linux segment setup */
- {
- uint64_t *gdt_table;
- env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES,
- PROT_READ | PROT_WRITE,
- MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
- env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1;
- gdt_table = g2h_untagged(env->gdt.base);
-#ifdef TARGET_ABI32
- write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
- (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
-#else
- /* 64 bit code segment */
- write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
- DESC_L_MASK |
- (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
-#endif
- write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
- (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
- }
-
- cpu_x86_load_seg(env, R_CS, __USER_CS);
- cpu_x86_load_seg(env, R_SS, __USER_DS);
-#ifdef TARGET_ABI32
- cpu_x86_load_seg(env, R_DS, __USER_DS);
- cpu_x86_load_seg(env, R_ES, __USER_DS);
- cpu_x86_load_seg(env, R_FS, __USER_DS);
- cpu_x86_load_seg(env, R_GS, __USER_DS);
- /* This hack makes Wine work... */
- env->segs[R_FS].selector = 0;
-#else
- cpu_x86_load_seg(env, R_DS, 0);
- cpu_x86_load_seg(env, R_ES, 0);
- cpu_x86_load_seg(env, R_FS, 0);
- cpu_x86_load_seg(env, R_GS, 0);
-#endif
-#else
-#error unsupported target CPU
-#endif
+ target_cpu_init(env, regs);
if (gdbstub) {
gdbserver_start(gdbstub);
