Revision 360e607b exec.c
| b/exec.c | ||
|---|---|---|
| 325 | 325 |
hwaddr *plen, bool resolve_subpage) |
| 326 | 326 |
{
|
| 327 | 327 |
MemoryRegionSection *section; |
| 328 |
Int128 diff; |
|
| 328 |
Int128 diff, diff_page;
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|
| 329 | 329 |
|
| 330 | 330 |
section = address_space_lookup_region(d, addr, resolve_subpage); |
| 331 | 331 |
/* Compute offset within MemoryRegionSection */ |
| ... | ... | |
| 334 | 334 |
/* Compute offset within MemoryRegion */ |
| 335 | 335 |
*xlat = addr + section->offset_within_region; |
| 336 | 336 |
|
| 337 |
diff_page = int128_make64(((addr & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE) - addr); |
|
| 337 | 338 |
diff = int128_sub(section->mr->size, int128_make64(addr)); |
| 339 |
diff = int128_min(diff, diff_page); |
|
| 338 | 340 |
*plen = int128_get64(int128_min(diff, int128_make64(*plen))); |
| 339 | 341 |
return section; |
| 340 | 342 |
} |
| ... | ... | |
| 349 | 351 |
hwaddr len = *plen; |
| 350 | 352 |
|
| 351 | 353 |
for (;;) {
|
| 352 |
section = address_space_translate_internal(as->dispatch, addr, &addr, plen, true);
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|
| 354 |
section = address_space_translate_internal(as->dispatch, addr, &addr, &len, true);
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| 353 | 355 |
mr = section->mr; |
| 354 | 356 |
|
| 355 | 357 |
if (!mr->iommu_ops) {
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