mirrors-yuzu-emu/unicorn
1
0
Fork 0
mirror of https://github.com/yuzu-emu/unicorn synced 2024-11-25 08:18:54 +00:00
Code Issues Projects Releases Packages Wiki Activity

Revert "exec: Respect as_tranlsate_internal length clamp"

Browse source 
This reverts commit c3c1bb9.
It causes problems with boards that declare memory regions shorter
than the registers they contain.

Backports commit 4025446f0ac6213335c22ec43f3c3d8362ce7286 from qemu
This commit is contained in:
Paolo Bonzini 2018-02-18 19:07:21 -05:00 committed by Lioncash
parent 1cc51e4b53
commit aad1027c96
No known key found for this signature in database
GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 3 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
qemu/exec.c
View file

@ -349,6 +349,7 @@ MemoryRegion *address_space_translate(AddressSpace *as, hwaddr addr,
IOMMUTLBEntry iotlb;
MemoryRegionSection *section;
MemoryRegion *mr;
hwaddr len = *plen;
for (;;) {
section = address_space_translate_internal(as->dispatch, addr, &addr, plen, true);
@ -363,7 +364,7 @@ MemoryRegion *address_space_translate(AddressSpace *as, hwaddr addr,
iotlb = mr->iommu_ops->translate(mr, addr, is_write);
addr = ((iotlb.translated_addr & ~iotlb.addr_mask)
| (addr & iotlb.addr_mask));
*plen = MIN(*plen, (addr | iotlb.addr_mask) - addr + 1);
len = MIN(len, (addr | iotlb.addr_mask) - addr + 1);
if (!(iotlb.perm & (1 << is_write))) {
mr = &as->uc->io_mem_unassigned;
break;
@ -372,6 +373,7 @@ MemoryRegion *address_space_translate(AddressSpace *as, hwaddr addr,
as = iotlb.target_as;
}
*plen = len;
*xlat = addr;
return mr;
}