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[Kernel] Improvements to MmQueryStatistics

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- Fixed incorrect calculation of available pages
- Changed amount of total virtual bytes
- Added real amount of reserved virtual bytes
- Removed unused methods
This commit is contained in:
Gliniak
2021-05-30 12:52:34 +02:00
parent ddee85f0be
commit 35321a10c3
3 changed files with 58 additions and 55 deletions
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37
src/xenia/kernel/xboxkrnl/xboxkrnl_memory.cc
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@@ -495,33 +495,24 @@ dword_result_t MmQueryStatistics(
stats_ptr->total_physical_pages = 0x00020000; // 512mb / 4kb pages
stats_ptr->kernel_pages = 0x00000300;
// TODO(gibbed): maybe use LookupHeapByType instead?
auto heap_a = kernel_memory()->LookupHeap(0xA0000000);
auto heap_c = kernel_memory()->LookupHeap(0xC0000000);
auto heap_e = kernel_memory()->LookupHeap(0xE0000000);
assert_not_null(heap_a);
assert_not_null(heap_c);
assert_not_null(heap_e);
#define GET_USED_PAGE_COUNT(x) \
(x->GetTotalPageCount() - x->GetUnreservedPageCount())
#define GET_USED_PAGE_SIZE(x) ((GET_USED_PAGE_COUNT(x) * x->page_size()) / 4096)
uint32_t reserved_pages = 0;
uint32_t unreserved_pages = 0;
uint32_t used_pages = 0;
used_pages += GET_USED_PAGE_SIZE(heap_a);
used_pages += GET_USED_PAGE_SIZE(heap_c);
used_pages += GET_USED_PAGE_SIZE(heap_e);
#undef GET_USED_PAGE_SIZE
#undef GET_USED_PAGE_COUNT
uint32_t reserved_pages_bytes = 0;
const BaseHeap* physical_heaps[3] = {
kernel_memory()->LookupHeapByType(true, 0x1000),
kernel_memory()->LookupHeapByType(true, 0x10000),
kernel_memory()->LookupHeapByType(true, 0x1000000)};
kernel_memory()->GetHeapsPageStatsSummary(
physical_heaps, std::size(physical_heaps), reserved_pages,
unreserved_pages, used_pages, reserved_pages_bytes);
assert_true(used_pages < stats_ptr->total_physical_pages);
stats_ptr->title.available_pages =
stats_ptr->total_physical_pages - used_pages;
stats_ptr->title.total_virtual_memory_bytes =
0x2FFF0000; // TODO(gibbed): FIXME
stats_ptr->title.reserved_virtual_memory_bytes =
0x00160000; // TODO(gibbed): FIXME
stats_ptr->total_physical_pages - stats_ptr->kernel_pages - used_pages;
stats_ptr->title.total_virtual_memory_bytes = 0x2FFE0000;
stats_ptr->title.reserved_virtual_memory_bytes = reserved_pages_bytes;
stats_ptr->title.physical_pages = 0x00001000; // TODO(gibbed): FIXME
stats_ptr->title.pool_pages = 0x00000010;
stats_ptr->title.stack_pages = 0x00000100;