static int do_syscall(CPUState *env, struct kqemu_cpu_state *kenv) { int selector; selector = (env->star >> 32) & 0xffff; #ifdef TARGET_X86_64 if (env->hflags & HF_LMA_MASK) { int code64; env->regs[R_ECX] = kenv->next_eip; env->regs[11] = env->eflags; code64 = env->hflags & HF_CS64_MASK; cpu_x86_set_cpl(env, 0); cpu_x86_load_seg_cache(env, R_CS, selector & 0xfffc, 0, 0xffffffff, DESC_G_MASK | DESC_P_MASK | DESC_S_MASK | DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK | DESC_L_MASK); cpu_x86_load_seg_cache(env, R_SS, (selector + 8) & 0xfffc, 0, 0xffffffff, DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | DESC_W_MASK | DESC_A_MASK); env->eflags &= ~env->fmask; if (code64) env->eip = env->lstar; else env->eip = env->cstar; } else #endif { env->regs[R_ECX] = (uint32_t)kenv->next_eip; cpu_x86_set_cpl(env, 0); cpu_x86_load_seg_cache(env, R_CS, selector & 0xfffc, 0, 0xffffffff, DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK); cpu_x86_load_seg_cache(env, R_SS, (selector + 8) & 0xfffc, 0, 0xffffffff, DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | DESC_W_MASK | DESC_A_MASK); env->eflags &= ~(IF_MASK | RF_MASK | VM_MASK); env->eip = (uint32_t)env->star; } return 2; }