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added more debug output

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23164 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Marcus Overhagen
2007-12-26 22:24:40 +00:00
parent 5aa3090bfb
commit 37502d0f9f
1 changed files with 16 additions and 1 deletions
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src/system/boot/platform/bios_ia32/mmu.cpp
+16 -1
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@@ -133,6 +133,9 @@ get_next_physical_page()
static uint32 * static uint32 *
get_next_page_table() get_next_page_table()
{ {
TRACE(("get_next_page_table, sNextPageTableAddress %p, kPageTableRegionEnd %p\n",
sNextPageTableAddress, kPageTableRegionEnd));
addr_t address = sNextPageTableAddress; addr_t address = sNextPageTableAddress;
if (address >= kPageTableRegionEnd) if (address >= kPageTableRegionEnd)
return (uint32 *)get_next_physical_page(); return (uint32 *)get_next_physical_page();
@@ -210,9 +213,16 @@ map_page(addr_t virtualAddress, addr_t physicalAddress, uint32 flags)
// map the page to the correct page table // map the page to the correct page table
uint32 *pageTable = (uint32 *)(sPageDirectory[virtualAddress uint32 *pageTable = (uint32 *)(sPageDirectory[virtualAddress
/ (B_PAGE_SIZE * 1024)] & 0xfffff000); / (B_PAGE_SIZE * 1024)] & 0xfffff000);
pageTable[(virtualAddress % (B_PAGE_SIZE * 1024)) / B_PAGE_SIZE] = physicalAddress | flags; uint32 tableEntry = (virtualAddress % (B_PAGE_SIZE * 1024)) / B_PAGE_SIZE;
TRACE(("map_page: inserting pageTable %p, tableEntry %ld, physicalAddress %p\n",
pageTable, tableEntry, physicalAddress));
pageTable[tableEntry] = physicalAddress | flags;
asm volatile("invlpg (%0)" : : "r" (virtualAddress)); asm volatile("invlpg (%0)" : : "r" (virtualAddress));
TRACE(("map_page: done\n"));
} }
@@ -275,6 +285,8 @@ get_memory_map(extended_memory **_extendedMemory)
static void static void
init_page_directory(void) init_page_directory(void)
{ {
TRACE(("init_page_directory\n"));
// allocate a new pgdir // allocate a new pgdir
sPageDirectory = (uint32 *)get_next_physical_page(); sPageDirectory = (uint32 *)get_next_physical_page();
gKernelArgs.arch_args.phys_pgdir = (uint32)sPageDirectory; gKernelArgs.arch_args.phys_pgdir = (uint32)sPageDirectory;
@@ -417,6 +429,7 @@ mmu_free(void *virtualAddress, size_t size)
extern "C" void extern "C" void
mmu_init_for_kernel(void) mmu_init_for_kernel(void)
{ {
TRACE(("mmu_init_for_kernel\n"));
// set up a new idt // set up a new idt
{ {
struct gdt_idt_descr idtDescriptor; struct gdt_idt_descr idtDescriptor;
@@ -536,6 +549,8 @@ mmu_init_for_kernel(void)
extern "C" void extern "C" void
mmu_init(void) mmu_init(void)
{ {
TRACE(("mmu_init\n"));
gKernelArgs.physical_allocated_range[0].start = sNextPhysicalAddress; gKernelArgs.physical_allocated_range[0].start = sNextPhysicalAddress;
gKernelArgs.physical_allocated_range[0].size = 0; gKernelArgs.physical_allocated_range[0].size = 0;
gKernelArgs.num_physical_allocated_ranges = 1; gKernelArgs.num_physical_allocated_ranges = 1;