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Add implementation for GDT & IDT on x32 and QoL fixes

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This commit is contained in:
Alex
2023-05-17 03:28:57 +03:00
parent f3044ceb5f
commit d527121883
23 changed files with 1529 additions and 457 deletions
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84
include/cpu.hpp
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@ -262,21 +262,31 @@ namespace CPU
typedef struct TrapFrame
{
uint32_t ebp; // Base Pointer (meant for stack frames)
// uint32_t ebp; // Base Pointer (meant for stack frames)
// uint32_t edi; // Destination index for string operations
// uint32_t esi; // Source index for string operations
// uint32_t edx; // Data (commonly extends the A register)
// uint32_t ecx; // Counter
// uint32_t ebx; // Base
// uint32_t eax; // Accumulator
uint32_t edi; // Destination index for string operations
uint32_t esi; // Source index for string operations
uint32_t ebp; // Base Pointer (meant for stack frames)
uint32_t esp; // Stack Pointer
uint32_t ebx; // Base
uint32_t edx; // Data (commonly extends the A register)
uint32_t ecx; // Counter
uint32_t ebx; // Base
uint32_t eax; // Accumulator
uint32_t InterruptNumber; // Interrupt Number
uint32_t ErrorCode; // Error code
uint32_t eip; // Instruction Pointer
uint32_t cs; // Code Segment
EFLAGS eflags; // Register Flags
uint32_t esp; // Stack Pointer
uint32_t ss; // Stack Segment
uint32_t eip; // Instruction Pointer
uint32_t cs; // Code Segment
EFLAGS eflags; // Register Flags
// uint32_t esp; // Stack Pointer
uint32_t ss; // Stack Segment
} TrapFrame;
// ! TODO: UNTESTED!
@ -359,7 +369,7 @@ namespace CPU
*/
static inline void cpuid(uint32_t Function, uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx)
{
#if defined(a32)
#ifdef a32
asmv("cpuid"
: "=a"(*eax), "=b"(*ebx), "=c"(*ecx), "=d"(*edx)
: "a"(Function));
@ -372,9 +382,36 @@ namespace CPU
#endif
}
SafeFunction static inline void lgdt(void *gdt)
{
#ifdef a32
asmv("lgdt (%0)"
:
: "r"(gdt));
#endif
}
SafeFunction static inline void lidt(void *idt)
{
#ifdef a32
asmv("lidt (%0)"
:
: "r"(idt));
#endif
}
SafeFunction static inline void ltr(uint16_t Segment)
{
#ifdef a32
asmv("ltr %0"
:
: "r"(Segment));
#endif
}
SafeFunction static inline void invlpg(void *Address)
{
#if defined(a32)
#ifdef a32
asmv("invlpg (%0)"
:
: "r"(Address)
@ -386,7 +423,7 @@ namespace CPU
SafeFunction static inline void fxsave(void *FXSaveArea)
{
#if defined(a32)
#ifdef a32
if (!FXSaveArea)
return;
@ -399,7 +436,7 @@ namespace CPU
SafeFunction static inline void fxrstor(void *FXRstorArea)
{
#if defined(a32)
#ifdef a32
if (!FXRstorArea)
return;
@ -515,11 +552,12 @@ namespace CPU
uint64_t InterruptNumber; // Interrupt Number
uint64_t ErrorCode; // Error code
uint64_t rip; // Instruction Pointer
uint64_t cs; // Code Segment
RFLAGS rflags; // Register Flags
uint64_t rsp; // Stack Pointer
uint64_t ss; // Stack Segment
uint64_t rip; // Instruction Pointer
uint64_t cs; // Code Segment
RFLAGS rflags; // Register Flags
uint64_t rsp; // Stack Pointer
uint64_t ss; // Stack Segment
} TrapFrame;
typedef union EFER
@ -673,7 +711,7 @@ namespace CPU
SafeFunction static inline void lgdt(void *gdt)
{
#if defined(a64)
#ifdef a64
asmv("lgdt (%0)"
:
: "r"(gdt));
@ -682,7 +720,7 @@ namespace CPU
SafeFunction static inline void lidt(void *idt)
{
#if defined(a64)
#ifdef a64
asmv("lidt (%0)"
:
: "r"(idt));
@ -691,7 +729,7 @@ namespace CPU
SafeFunction static inline void ltr(uint16_t Segment)
{
#if defined(a64)
#ifdef a64
asmv("ltr %0"
:
: "r"(Segment));
@ -700,7 +738,7 @@ namespace CPU
SafeFunction static inline void invlpg(void *Address)
{
#if defined(a64)
#ifdef a64
asmv("invlpg (%0)"
:
: "r"(Address)
@ -719,7 +757,7 @@ namespace CPU
*/
SafeFunction static inline void cpuid(uint32_t Function, uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx)
{
#if defined(a64)
#ifdef a64
asmv("cpuid"
: "=a"(*eax), "=b"(*ebx), "=c"(*ecx), "=d"(*edx)
: "a"(Function));
@ -742,7 +780,7 @@ namespace CPU
SafeFunction static inline void fxsave(void *FXSaveArea)
{
#if defined(a64)
#ifdef a64
if (!FXSaveArea || FXSaveArea >= (char *)0xfffffffffffff000)
return;
@ -755,7 +793,7 @@ namespace CPU
SafeFunction static inline void fxrstor(void *FXRstorArea)
{
#if defined(a64)
#ifdef a64
if (!FXRstorArea || FXRstorArea >= (char *)0xfffffffffffff000)
return;