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Kernel: Unify IDT and GDT code between x86_64 and x86_32

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The code is pretty much the same, so there are just couple macros
differiating initialization.
This commit is contained in:
Bananymous
2024-03-26 13:59:09 +02:00
parent af050cc729
commit 1943c3e7a1
12 changed files with 335 additions and 147 deletions
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26
kernel/include/kernel/IDT.h
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@@ -2,6 +2,7 @@
#include <BAN/Array.h>
#include <BAN/NoCopyMove.h>
#include <kernel/Arch.h>
#include <kernel/Interruptable.h>
#include <stdint.h>
@@ -12,21 +13,36 @@ constexpr uint8_t IRQ_IPI = 32;
namespace Kernel
{
#if ARCH(x86_64)
struct GateDescriptor
{
uint16_t offset1;
uint16_t offset0;
uint16_t selector;
uint8_t IST;
uint8_t flags;
uint16_t offset2;
uint32_t offset3;
uint16_t offset1;
uint32_t offset2;
uint32_t reserved;
} __attribute__((packed));
};
static_assert(sizeof(GateDescriptor) == 16);
#elif ARCH(i686)
struct GateDescriptor
{
uint16_t offset0;
uint16_t selector;
uint8_t reserved;
uint8_t flags;
uint16_t offset1;
};
static_assert(sizeof(GateDescriptor) == 8);
#else
#error
#endif
struct IDTR
{
uint16_t size;
uint64_t offset;
uintptr_t offset;
} __attribute__((packed));
class IDT