eryn/polka
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Print descriptor table information when loading

Browse source
This commit is contained in:
Eryn Wells 2016-03-13 15:47:11 -04:00
parent fdc7232079
commit cf8047f7be
1 changed files with 8 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

8
src/Descriptors.cc
View file

@ -7,6 +7,7 @@
*/ */
#include "Descriptors.hh" #include "Descriptors.hh"
#include "Console.hh"
namespace { namespace {
@ -123,6 +124,9 @@ GDT::load()
{ {
PseudoDescriptor gdt {Size * sizeof(Descriptor) - 1, uint32_t(&mTable)}; PseudoDescriptor gdt {Size * sizeof(Descriptor) - 1, uint32_t(&mTable)};
auto& console = kernel::Console::systemConsole();
console.printFormat("GDT: base = 0x%08lX, limit = %d\n", gdt.base, gdt.limit);
/* /*
* Load the new GDT with the pointer defined above. The GDT isn't actually * Load the new GDT with the pointer defined above. The GDT isn't actually
* used until the segment registers are reladed. Below, CS is reloaded by * used until the segment registers are reladed. Below, CS is reloaded by
@ -232,6 +236,10 @@ IDT::load()
const const
{ {
PseudoDescriptor idt{Size * sizeof(Descriptor) - 1, uint32_t(&mTable)}; PseudoDescriptor idt{Size * sizeof(Descriptor) - 1, uint32_t(&mTable)};
auto& console = kernel::Console::systemConsole();
console.printFormat("IDT: base = 0x%08lX, limit = %d\n", idt.base, idt.limit);
asm volatile("lidt %0\n" : : "m" (idt)); asm volatile("lidt %0\n" : : "m" (idt));
} }