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64 bit syscall fixes - more logical mwait/monitor ECX test

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2374 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2007-02-01 22:12:19 +00:00
parent 0499e4a02a
commit d80c7d1c47
1 changed files with 6 additions and 4 deletions
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10
target-i386/helper.c
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@ -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) {