diff options
| -rw-r--r-- | target-i386/helper.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/target-i386/helper.c b/target-i386/helper.c index 57777ff756..1d62f6b2e3 100644 --- a/target-i386/helper.c +++ b/target-i386/helper.c @@ -977,7 +977,7 @@ void helper_syscall(int next_eip_addend) 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_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, @@ -1028,7 +1028,7 @@ void helper_sysret(int dflag) if (dflag == 2) { cpu_x86_load_seg_cache(env, R_CS, (selector + 16) | 3, 0, 0xffffffff, - DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | + DESC_G_MASK | DESC_P_MASK | DESC_S_MASK | (3 << DESC_DPL_SHIFT) | DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK | DESC_L_MASK); @@ -2422,12 +2422,14 @@ static inline void helper_ret_protected(int shift, int is_iret, int addend) if ((new_ss & 0xfffc) == 0) { #ifdef TARGET_X86_64 /* NULL ss is allowed in long mode if cpl != 3*/ + /* XXX: test CS64 ? */ if ((env->hflags & HF_LMA_MASK) && rpl != 3) { cpu_x86_load_seg_cache(env, R_SS, new_ss, 0, 0xffffffff, DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | (rpl << DESC_DPL_SHIFT) | DESC_W_MASK | DESC_A_MASK); + ss_e2 = DESC_B_MASK; /* XXX: should not be needed ? */ } else #endif { @@ -3716,14 +3718,14 @@ void helper_hlt(void) void helper_monitor(void) { - if (ECX != 0) + if ((uint32_t)ECX != 0) raise_exception(EXCP0D_GPF); /* XXX: store address ? */ } void helper_mwait(void) { - if (ECX != 0) + if ((uint32_t)ECX != 0) raise_exception(EXCP0D_GPF); /* XXX: not complete but not completely erroneous */ if (env->cpu_index != 0 || env->next_cpu != NULL) { |