fabi/Xenia-Canary
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Optimizing page allocation (still shit) and adding MmSetAddressProtect.

Browse Source
This commit is contained in:
Ben Vanik
2015-06-03 21:24:09 -07:00
parent 50813d3ffa
commit a9e2ba16fb
3 changed files with 16 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
src/xenia/memory.cc
View File

@@ -679,7 +679,11 @@ bool BaseHeap::AllocRange(uint32_t low_address, uint32_t high_address,
bool is_free = page_table_[page_number].state == 0;
if (!is_free) {
// At least one page in the range is used, skip to next.
// We know we'll be starting at least before this page.
any_taken = true;
base_page_number = page_number - page_count;
base_page_number -= base_page_number % page_scan_stride;
base_page_number += page_scan_stride; // cancel out loop logic
break;
}
}
@@ -708,7 +712,10 @@ bool BaseHeap::AllocRange(uint32_t low_address, uint32_t high_address,
bool is_free = page_table_[page_number].state == 0;
if (!is_free) {
// At least one page in the range is used, skip to next.
// We know we'll be starting at least after this page.
any_taken = true;
base_page_number = xe::round_up(page_number + 1, page_scan_stride);
base_page_number -= page_scan_stride; // cancel out loop logic
break;
}
}