Revision b359d4e7
| b/target-i386/helper.c | ||
|---|---|---|
| 1494 | 1494 |
target_ulong ptr; |
| 1495 | 1495 |
|
| 1496 | 1496 |
selector &= 0xffff; |
| 1497 |
cpl = env->hflags & HF_CPL_MASK; |
|
| 1497 | 1498 |
if ((selector & 0xfffc) == 0) {
|
| 1498 | 1499 |
/* null selector case */ |
| 1499 | 1500 |
if (seg_reg == R_SS |
| 1500 | 1501 |
#ifdef TARGET_X86_64 |
| 1501 |
&& !(env->hflags & HF_CS64_MASK)
|
|
| 1502 |
&& (!(env->hflags & HF_CS64_MASK) || cpl == 3)
|
|
| 1502 | 1503 |
#endif |
| 1503 | 1504 |
) |
| 1504 | 1505 |
raise_exception_err(EXCP0D_GPF, 0); |
| ... | ... | |
| 1520 | 1521 |
raise_exception_err(EXCP0D_GPF, selector & 0xfffc); |
| 1521 | 1522 |
rpl = selector & 3; |
| 1522 | 1523 |
dpl = (e2 >> DESC_DPL_SHIFT) & 3; |
| 1523 |
cpl = env->hflags & HF_CPL_MASK; |
|
| 1524 | 1524 |
if (seg_reg == R_SS) {
|
| 1525 | 1525 |
/* must be writable segment */ |
| 1526 | 1526 |
if ((e2 & DESC_CS_MASK) || !(e2 & DESC_W_MASK)) |
| ... | ... | |
| 2054 | 2054 |
new_ss, new_esp); |
| 2055 | 2055 |
} |
| 2056 | 2056 |
#endif |
| 2057 |
if ((env->hflags & HF_LMA_MASK) && (new_ss & 0xfffc) == 0) {
|
|
| 2058 |
/* NULL ss is allowed in long mode */ |
|
| 2059 |
cpu_x86_load_seg_cache(env, R_SS, new_ss, |
|
| 2060 |
0, 0xffffffff, |
|
| 2061 |
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | |
|
| 2062 |
DESC_S_MASK | (rpl << DESC_DPL_SHIFT) | |
|
| 2063 |
DESC_W_MASK | DESC_A_MASK); |
|
| 2057 |
if ((new_ss & 0xfffc) == 0) {
|
|
| 2058 |
#ifdef TARGET_X86_64 |
|
| 2059 |
/* NULL ss is allowed in long mode if cpl != 3*/ |
|
| 2060 |
if ((env->hflags & HF_LMA_MASK) && rpl != 3) {
|
|
| 2061 |
cpu_x86_load_seg_cache(env, R_SS, new_ss, |
|
| 2062 |
0, 0xffffffff, |
|
| 2063 |
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | |
|
| 2064 |
DESC_S_MASK | (rpl << DESC_DPL_SHIFT) | |
|
| 2065 |
DESC_W_MASK | DESC_A_MASK); |
|
| 2066 |
} else |
|
| 2067 |
#endif |
|
| 2068 |
{
|
|
| 2069 |
raise_exception_err(EXCP0D_GPF, 0); |
|
| 2070 |
} |
|
| 2064 | 2071 |
} else {
|
| 2065 | 2072 |
if ((new_ss & 3) != rpl) |
| 2066 | 2073 |
raise_exception_err(EXCP0D_GPF, new_ss & 0xfffc); |
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