os-k-team/os-k
os-k-team
/
os-k
2
0
Fork 0
Code Issues 1 Pull Requests Packages Projects Releases Wiki Activity

Merge branch 'master' into shell

This commit is contained in:
Adrien Bourmault 2020-01-10 19:58:53 +01:00
parent d450e1b402 951c99ad56
commit 5fba767e64
18 changed files with 647 additions and 276 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
Makefile
View File

@ -22,7 +22,7 @@
# along with OS/K. If not, see <https://www.gnu.org/licenses/>. #
#=----------------------------------------------------------------------------=#
.PHONY: all test testnokvm testnosnd test32 debug gdb installonimage dust clean OS/K run
.PHONY: all test testnokvm testnosnd test32 debug gdb ddd gdbnokvm dddnokvm installonimage dust clean OS/K run
.DELETE_ON_ERROR: $(BINDIR)/kaleid
.DEFAULT_GOAL := all
@ -41,7 +41,7 @@ CCNAME=x86_64-elf-gcc
ASMFLAGS=-f elf64
LDFLAGS=-melf_x86_64
COPTIM=-O2
CWARNS=-Wall -Wextra -Wno-unused-parameter -Wno-implicit-fallthrough -Werror=implicit-function-declaration -Werror=return-type
CWARNS=-Wall -Wextra -Wno-unused-parameter -Wno-implicit-fallthrough -Werror=implicit-function-declaration -Werror=return-type #-Wpadded
CINCLUDES=-Iinclude
CFLAGS1=-nostdlib -ffreestanding -mcmodel=large -std=gnu11 -fstack-protector-all -fdump-rtl-expand
CFLAGS2= -c -mno-red-zone -mno-mmx -mno-sse -mno-sse2
@ -292,7 +292,7 @@ test32: all installonimage
cpu_reset,guest_errors,pcall,int 2> $(BUILDDIR)/qemu.log &
gdb: all installonimage
@setsid qemu-system-x86_64 -m $(ram) -soundhw pcspk -rtc base=localtime \
@setsid qemu-system-x86_64 -m $(ram) -enable-kvm -rtc base=localtime \
-hda $(installdisk) -no-reboot -no-shutdown -d \
cpu_reset,guest_errors,pcall,int -s -S 2> $(BUILDDIR)/qemu.log &
@gdb \
@ -302,9 +302,26 @@ gdb: all installonimage
-ex "break BtStartKern" \
ddd: all installonimage
@setsid qemu-system-x86_64 -m $(ram) -hda $(installdisk) -no-reboot -soundhw pcspk \
-no-shutdown -d cpu_reset,guest_errors,pcall,int -s 2> $(BUILDDIR)/qemu.log &
@ddd
@setsid qemu-system-x86_64 -m $(ram) -enable-kvm -rtc base=localtime \
-hda $(installdisk) -no-reboot -no-shutdown -d \
cpu_reset,guest_errors,pcall,int -s -S 2> $(BUILDDIR)/qemu.log &
@ddd -n
gdbnokvm: all installonimage
@setsid qemu-system-x86_64 -m $(ram) -rtc base=localtime \
-hda $(installdisk) -no-reboot -no-shutdown -d \
cpu_reset,guest_errors,pcall,int -s -S 2> $(BUILDDIR)/qemu.log &
@gdb \
-ex "set arch i386:x86-64:intel" \
-ex "target remote localhost:1234" \
-ex "symbol-file $(BINDIR)/kaleid" \
-ex "break BtStartKern" \
dddnokvm: all installonimage
@setsid qemu-system-x86_64 -m $(ram) -rtc base=localtime \
-hda $(installdisk) -no-reboot -no-shutdown -d \
cpu_reset,guest_errors,pcall,int -s -S 2> $(BUILDDIR)/qemu.log &
@ddd -n
## HD IMAGE RELATED ---------------------------------------------------------- #

5
README.md
View File

@ -42,3 +42,8 @@ To compile and install, simply use at the root of this project, with XXX the ima
make install installdisk=XXX
```
#### Screenshot
![OS/K Started](https://www.os-k.eu/images/screen3.png)

6
build/kernel.ld
View File

@ -38,13 +38,16 @@ SECTIONS {
.text ALIGN (0x1000) :
{
_text = .;
*(.text)
_text_end = .;
}
.data ALIGN (0x1000) :
{
_data = .;
*(.data)
_data_end = .;
}
.eh_frame ALIGN (0x1000) :
@ -55,7 +58,9 @@ SECTIONS {
.rodata ALIGN (0x1000) :
{
_rodata = .;
*(.rodata)
_rodata_end = .;
}
.bss ALIGN (0x1000) :
@ -71,4 +76,3 @@ SECTIONS {
kernelEnd = .;
}

5
include/asm.h
View File

@ -136,6 +136,11 @@ static inline ulong KeReadStsc(void) {
return ((ulong)edx << 32) + eax;
}
static inline void KeFlushTlbSingle(ulong addr)
{
asm volatile("invlpg (%0)" ::"r" (addr) : "memory");
}
//------------------------------------------//
// Misc. I/O //
//------------------------------------------//

32
include/init/boot.h
View File

@ -44,24 +44,24 @@ struct BootInfo_t
{
// The Bootloader infos
struct {
ushort valid;
uint grubFlags; //flags
uint modulesCount; //mods_count
void *modulesAddr; //mods_addr
char *grubName; //boot_loader_name
void *kernelAddr;
void *codeSegment;
void *kernelEndAddr;
void *stackEndAddr; // stack begins 16B after kernelEndAddr
uint grubFlags; //flags
uint modulesCount; //mods_count
ushort valid;
char *grubName; //boot_loader_name
} btldr;
// Informations about drives
struct {
ushort drvValid;
ushort bufferValid;
void *bufferAddr; //drives_addr
uint bootDrv; //boot_device
uint bufferLength; //drives_length
void *bufferAddr; //drives_addr
ushort drvValid;
ushort bufferValid;
} drives;
// Informations about memory
@ -74,36 +74,36 @@ struct BootInfo_t
uint upMemory; //mem_upper
//GRUB provided memory map
uint mapLength; //mmap_length
void *mapAddr; //mmap_addr
uint mapLength; //mmap_length
uint ramSize; //The ram (init by map.c)
} memory;
// Informations about the video drive
struct {
ushort vbeValid;
ushort fbuValid;
void *vbeControl; //vbe_control_info
void *vbeModeInfo; //vbe_mode_info
ushort vbeMode; //vbe_mode
ushort vbeInterfaceSeg; //vbe_interface_seg
ushort vbeInterfaceOff; //vbe_interface_off
ushort vbeInterfaceLen; //vbe_interface_len
void *framebufferAddr; //framebuffer_addr
uint framebufferPitch; //framebuffer_pitch
uint framebufferWidth; //framebuffer_width
uint framebufferHeight; //framebuffer_height
ushort vbeValid;
ushort fbuValid;
ushort vbeMode; //vbe_mode
ushort vbeInterfaceSeg; //vbe_interface_seg
ushort vbeInterfaceOff; //vbe_interface_off
ushort vbeInterfaceLen; //vbe_interface_len
uchar framebufferBpp; //framebuffer_bpp
uchar framebufferType; //framebuffer_type
} video;
// Informations about the microcode firmware (BIOS/EFI)
struct {
ushort apmValid;
ushort romValid;
uint apmTable; //apm_table
uint romTable; //config_table
ushort apmValid;
ushort romValid;
} firmware;
};

10
include/io/spkr.h
View File

@ -31,13 +31,19 @@
//----------------------------------------------------------------------------//
void IoStartSpeaker(int);
void IoStartSpeaker(ulong);
void IoDoBeep(void);
void IoDoTone(uint tone, uint time);
void IoDoTone(ulong tone, ulong time);
void IoDoBeepNoIdt(void);
void IoDoStarWars(void);
struct Note
{
ulong tone;
ulong time;
};
//----------------------------------------------------------------------------//
#endif

1
include/io/vga.h
View File

@ -59,6 +59,7 @@ extern const char *RtlColorNames[VGA_COLOR_WHITE+1];
#define RtlCharToColor(c) ((c) - 130)
uint IoGetScroll(void);
void IoSetScroll(uint);
void IoScrollUp(void);
void IoScrollDown(void);

38
include/mm/mm.h
View File

@ -41,7 +41,7 @@
#define BADRAM_ZONE 5 // Invalid zone because material problem...
#define MAX_ENTRIES 2048 // Max number of memory map entries
#define KPAGESIZE (4 * KB)
#define UPAGESIZE (2 * MB)
#define UPAGESIZE (4 * KB)
//----------------------------------------------------------------------------//
@ -108,7 +108,7 @@ struct Tss_t
ushort iomap_base;
uchar iomap[IOMAP_SIZE];
} __attribute__ ((packed));
} __attribute__ ((packed)) __attribute__((aligned(8)));
@ -158,10 +158,11 @@ extern void MmLoadGdt(GdtPtr_t *gdtPtr, ushort tssOffset);
//
extern void MmStoreGdt(void);
//
// Paging misc
//
void MmInitPaging(void);
void MmReloadPaging(void);
void MmActivatePageHandler(void);
//
@ -170,24 +171,39 @@ void MmActivatePageHandler(void);
void *MmGetStackGuards(char rank);
//
// Translate a virtual address into physical address
// Translate a virtual address into physical address and the opposite
//
void *MmTranslateKPageToAddr(void *rank);
void *MmTransVirtToPhyAddr(void*);
void *MmTransPhyToVirtAddr(void* virtualAddr);
// Page directory pointer offset
typedef ulong pdpe_t;
//
// Set flags to a page
//
void MmSetPage(void* virtualAddr, ulong flags);
void MmUnSetPage(void* virtualAddr, ulong flags);
// Page directory offset
typedef ulong pde_t;
//
// Map a page
//
void MmMapPage(void* virtualAddr, void* physicalAddr, ulong flags);
void MmUnmapPage(void* virtualAddr);
// Page table entry
typedef ulong pte_t;
// Page directory offset
typedef pte_t* pde_t;
// Page directory pointer offset
typedef pde_t* pdpe_t;
// Page directory L4 pointer offset
typedef pdpe_t* pml4_t;
// paging.asm
void MmLoadPML4(void *);
void MmEnableWriteProtect(void);
void MmDisableWriteProtect(void);
void *MmGetStackGuards(char rank);
//----------------------------------------------------------------------------//

18
kaleid/kernel/init/init.c
View File

@ -62,21 +62,21 @@ noreturn void BtStartKern(multiboot_info_t *mbInfo, uint mbMagic, void *codeSeg)
// Memory
MmInitMemoryMap();
MmInitPaging();
MmInitHeap();
MmInitGdt();
// Basics for interrupts
// Interrupts
KeSetupIDT();
KeEnableIRQs();
// Memory (2)
MmInitHeap();
MmInitPaging();
// Interrupt handlers
MmActivatePageHandler();
KeEnableRTC();
KeEnablePIT();
KeGetCpuInfos();
// Memory (2)
MmInitGdt();
MmActivatePageHandler();
// Drivers
IoEnableKeyb();
// Command line (kernel mode)

42
kaleid/kernel/io/spkr.c
View File

@ -28,10 +28,21 @@
extern bool KeIdtIsInitialized;
void IoStartSpeaker(int freq)
struct Note score[40] = { {440, 200}, {110, 200}, {440, 200}, {110, 200},
{440, 200}, {110, 200}, {349, 140}, {87, 100},
{523, 60}, {87, 100}, {440, 200}, {110, 200},
{349, 140}, {87, 100}, {523, 60}, {87, 100},
{440, 200}, {110, 200}, {440, 200}, {110, 200},
{659, 200}, {110, 200}, {659, 200}, {110, 200},
{659, 200}, {87, 200}, {698, 140}, {87, 100},
{523, 60}, {87, 100}, {415, 200}, {87, 200},
{349, 140}, {87, 100}, {523, 60}, {87, 100},
{440, 200}, {110, 200}, {110, 200}, {110, 200} };
void IoStartSpeaker(ulong freq)
{
uchar temp;
uint pitf = 1193180 / freq;
ulong pitf = 1193180 / freq;
ulong flags = KePauseIRQs();
IoWriteByteOnPort(0x43, 0xB6);
@ -52,13 +63,13 @@ static inline void IoQuietSpeaker(void)
KeRestoreIRQs(flags);
}
void IoDoTone(uint tone, uint time)
void IoDoTone(ulong tone, ulong time)
{
IoStartSpeaker(tone);
KeSleep(time);
}
static void IoDoToneNoIdt(uint tone, uint time)
static void IoDoToneNoIdt(ulong tone, ulong time)
{
extern void temporize(void);
IoStartSpeaker(tone);
@ -81,29 +92,8 @@ void IoDoBeepNoIdt(void)
void IoDoStarWars(void)
{
struct Note {
uint tone;
uint time;
};
struct Note score[] = { {440, 200}, {110, 200}, {440, 200}, {110, 200},
{440, 200}, {110, 200}, {349, 140}, {87, 100},
{523, 60}, {87, 100}, {440, 200}, {110, 200},
{349, 140}, {87, 100}, {523, 60}, {87, 100},
{440, 200}, {110, 200}, {440, 200}, {110, 200},
{659, 200}, {110, 200}, {659, 200}, {110, 200},
{659, 200}, {87, 200}, {698, 140}, {87, 100},
{523, 60}, {87, 100}, {415, 200}, {87, 200},
{349, 140}, {87, 100}, {523, 60}, {87, 100},
{440, 200}, {110, 200}, {110, 200}, {110, 200}
};
//bprintf(BStdOut, "\n");
for (uint i = 0; i < sizeof(score)/sizeof(struct Note); i++) {
for (uint i = 0; i < 40; i++) {
IoDoTone(score[i].tone, score[i].time);
//bprintf(BStdOut, "%d ", i);
//BStdOut->flusher(BStdOut);
}
IoQuietSpeaker();

5
kaleid/kernel/io/vga.c
View File

@ -113,6 +113,11 @@ uint IoGetScroll(void)
return bscroll;
}
void IoSetScroll(uint value)
{
bscroll = 0;
}
void IoScrollDown(void)
{
BLockBuf(BStdOut);

117
kaleid/kernel/ke/idt.c
View File

@ -26,7 +26,6 @@
#include <init/boot.h>
#include <ke/idt.h>
#include <io/vga.h>
#include <mm/mm.h>
#include <io/spkr.h>
IdtEntry_t idt[256] = { 0 };
@ -120,56 +119,56 @@ void KeSetupIDT(void)
_KeIdtPtr.base = &idt;
// Set IDT Exception Gates
KeSetIDTGate(0x00, (ulong)isr0, codeSeg, 0x8E, 0);
KeSetIDTGate(0x01, (ulong)isr1, codeSeg, 0x8E, 0);
KeSetIDTGate(0x02, (ulong)isr2, codeSeg, 0x8E, 0);
KeSetIDTGate(0x03, (ulong)isr3, codeSeg, 0x8E, 0);
KeSetIDTGate(0x04, (ulong)isr4, codeSeg, 0x8E, 0);
KeSetIDTGate(0x05, (ulong)isr5, codeSeg, 0x8E, 0);
KeSetIDTGate(0x06, (ulong)isr6, codeSeg, 0x8E, 0);
KeSetIDTGate(0x07, (ulong)isr7, codeSeg, 0x8E, 0);
KeSetIDTGate(0x08, (ulong)isr8, codeSeg, 0x8E, 1);
KeSetIDTGate(0x09, (ulong)isr9, codeSeg, 0x8E, 0);
KeSetIDTGate(0x0A, (ulong)isr10, codeSeg, 0x8E, 0);
KeSetIDTGate(0x0B, (ulong)isr11, codeSeg, 0x8E, 0);
KeSetIDTGate(0x0C, (ulong)isr12, codeSeg, 0x8E, 1);
KeSetIDTGate(0x0D, (ulong)isr13, codeSeg, 0x8E, 0);
KeSetIDTGate(0x0E, (ulong)isr14, codeSeg, 0x8E, 0);
KeSetIDTGate(0x0F, (ulong)isr15, codeSeg, 0x8E, 0); // INTEL RESERVED
KeSetIDTGate(0x10, (ulong)isr16, codeSeg, 0x8E, 0);
KeSetIDTGate(0x11, (ulong)isr17, codeSeg, 0x8E, 0);
KeSetIDTGate(0x12, (ulong)isr18, codeSeg, 0x8E, 0);
KeSetIDTGate(0x13, (ulong)isr19, codeSeg, 0x8E, 0);
KeSetIDTGate(0x14, (ulong)isr20, codeSeg, 0x8E, 0);
KeSetIDTGate(0x15, (ulong)isr21, codeSeg, 0x8E, 0); // INTEL RESERVED
KeSetIDTGate(0x16, (ulong)isr22, codeSeg, 0x8E, 0); // INTEL RESERVED
KeSetIDTGate(0x17, (ulong)isr23, codeSeg, 0x8E, 0); // INTEL RESERVED
KeSetIDTGate(0x18, (ulong)isr24, codeSeg, 0x8E, 0); // INTEL RESERVED
KeSetIDTGate(0x19, (ulong)isr25, codeSeg, 0x8E, 0); // INTEL RESERVED
KeSetIDTGate(0x1A, (ulong)isr26, codeSeg, 0x8E, 0); // INTEL RESERVED
KeSetIDTGate(0x1B, (ulong)isr27, codeSeg, 0x8E, 0); // INTEL RESERVED
KeSetIDTGate(0x1C, (ulong)isr28, codeSeg, 0x8E, 0); // INTEL RESERVED
KeSetIDTGate(0x1D, (ulong)isr29, codeSeg, 0x8E, 0); // INTEL RESERVED
KeSetIDTGate(0x1E, (ulong)isr30, codeSeg, 0x8E, 0);
KeSetIDTGate(0x1F, (ulong)isr31, codeSeg, 0x8E, 0); // INTEL RESERVED
KeSetIDTGate(0x00, (ulong)isr0, codeSeg, 0x8E, 2);
KeSetIDTGate(0x01, (ulong)isr1, codeSeg, 0x8E, 2);
KeSetIDTGate(0x02, (ulong)isr2, codeSeg, 0x8E, 2);
KeSetIDTGate(0x03, (ulong)isr3, codeSeg, 0x8E, 2);
KeSetIDTGate(0x04, (ulong)isr4, codeSeg, 0x8E, 2);
KeSetIDTGate(0x05, (ulong)isr5, codeSeg, 0x8E, 2);
KeSetIDTGate(0x06, (ulong)isr6, codeSeg, 0x8E, 2);
KeSetIDTGate(0x07, (ulong)isr7, codeSeg, 0x8E, 2); // XXX device not available, useful for FPU save/restore when multitasking
KeSetIDTGate(0x08, (ulong)isr8, codeSeg, 0x8E, 1); // DOUBLE FAULT
KeSetIDTGate(0x09, (ulong)isr9, codeSeg, 0x8E, 2);
KeSetIDTGate(0x0A, (ulong)isr10, codeSeg, 0x8E, 0); // INVALID TSS
KeSetIDTGate(0x0B, (ulong)isr11, codeSeg, 0x8E, 2);
KeSetIDTGate(0x0C, (ulong)isr12, codeSeg, 0x8E, 1); // STACK SEGMENT FAULT
KeSetIDTGate(0x0D, (ulong)isr13, codeSeg, 0x8E, 2);
KeSetIDTGate(0x0E, (ulong)isr14, codeSeg, 0x8E, 2);
KeSetIDTGate(0x0F, (ulong)isr15, codeSeg, 0x8E, 2); // INTEL RESERVED
KeSetIDTGate(0x10, (ulong)isr16, codeSeg, 0x8E, 2);
KeSetIDTGate(0x11, (ulong)isr17, codeSeg, 0x8E, 2);
KeSetIDTGate(0x12, (ulong)isr18, codeSeg, 0x8E, 2);
KeSetIDTGate(0x13, (ulong)isr19, codeSeg, 0x8E, 2);
KeSetIDTGate(0x14, (ulong)isr20, codeSeg, 0x8E, 2);
KeSetIDTGate(0x15, (ulong)isr21, codeSeg, 0x8E, 2); // INTEL RESERVED
KeSetIDTGate(0x16, (ulong)isr22, codeSeg, 0x8E, 2); // INTEL RESERVED
KeSetIDTGate(0x17, (ulong)isr23, codeSeg, 0x8E, 2); // INTEL RESERVED
KeSetIDTGate(0x18, (ulong)isr24, codeSeg, 0x8E, 2); // INTEL RESERVED
KeSetIDTGate(0x19, (ulong)isr25, codeSeg, 0x8E, 2); // INTEL RESERVED
KeSetIDTGate(0x1A, (ulong)isr26, codeSeg, 0x8E, 2); // INTEL RESERVED
KeSetIDTGate(0x1B, (ulong)isr27, codeSeg, 0x8E, 2); // INTEL RESERVED
KeSetIDTGate(0x1C, (ulong)isr28, codeSeg, 0x8E, 2); // INTEL RESERVED
KeSetIDTGate(0x1D, (ulong)isr29, codeSeg, 0x8E, 2); // INTEL RESERVED
KeSetIDTGate(0x1E, (ulong)isr30, codeSeg, 0x8E, 2);
KeSetIDTGate(0x1F, (ulong)isr31, codeSeg, 0x8E, 2); // INTEL RESERVED
// Set IDT IRQs Gates
KeSetIDTGate(0x20, (ulong)isr32, codeSeg, 0x8E, 0);
KeSetIDTGate(0x21, (ulong)isr33, codeSeg, 0x8E, 0);
KeSetIDTGate(0x22, (ulong)isr34, codeSeg, 0x8E, 0);
KeSetIDTGate(0x23, (ulong)isr35, codeSeg, 0x8E, 0);
KeSetIDTGate(0x24, (ulong)isr36, codeSeg, 0x8E, 0);
KeSetIDTGate(0x25, (ulong)isr37, codeSeg, 0x8E, 0);
KeSetIDTGate(0x26, (ulong)isr38, codeSeg, 0x8E, 0);
KeSetIDTGate(0x27, (ulong)isr39, codeSeg, 0x8E, 0);
KeSetIDTGate(0x28, (ulong)isr40, codeSeg, 0x8E, 0);
KeSetIDTGate(0x29, (ulong)isr41, codeSeg, 0x8E, 0);
KeSetIDTGate(0x2A, (ulong)isr42, codeSeg, 0x8E, 0);
KeSetIDTGate(0x2B, (ulong)isr43, codeSeg, 0x8E, 0);
KeSetIDTGate(0x2C, (ulong)isr44, codeSeg, 0x8E, 0);
KeSetIDTGate(0x2D, (ulong)isr45, codeSeg, 0x8E, 0);
KeSetIDTGate(0x2E, (ulong)isr46, codeSeg, 0x8E, 0);
KeSetIDTGate(0x2F, (ulong)isr47, codeSeg, 0x8E, 0);
KeSetIDTGate(0x20, (ulong)isr32, codeSeg, 0x8E, 3);
KeSetIDTGate(0x21, (ulong)isr33, codeSeg, 0x8E, 3);
KeSetIDTGate(0x22, (ulong)isr34, codeSeg, 0x8E, 3);
KeSetIDTGate(0x23, (ulong)isr35, codeSeg, 0x8E, 3);
KeSetIDTGate(0x24, (ulong)isr36, codeSeg, 0x8E, 3);
KeSetIDTGate(0x25, (ulong)isr37, codeSeg, 0x8E, 3);
KeSetIDTGate(0x26, (ulong)isr38, codeSeg, 0x8E, 3);
KeSetIDTGate(0x27, (ulong)isr39, codeSeg, 0x8E, 3);
KeSetIDTGate(0x28, (ulong)isr40, codeSeg, 0x8E, 3);
KeSetIDTGate(0x29, (ulong)isr41, codeSeg, 0x8E, 3);
KeSetIDTGate(0x2A, (ulong)isr42, codeSeg, 0x8E, 3);
KeSetIDTGate(0x2B, (ulong)isr43, codeSeg, 0x8E, 3);
KeSetIDTGate(0x2C, (ulong)isr44, codeSeg, 0x8E, 3);
KeSetIDTGate(0x2D, (ulong)isr45, codeSeg, 0x8E, 3);
KeSetIDTGate(0x2E, (ulong)isr46, codeSeg, 0x8E, 3);
KeSetIDTGate(0x2F, (ulong)isr47, codeSeg, 0x8E, 3);
KeIdtIsInitialized++;
@ -293,8 +292,8 @@ void KeDisableNMI(void)
//
void _KeHandleISR(ISRFrame_t *regs)
{
if ((!regs) || (!regs->rip))
KeStartPanic("[ISR ?] Unknown ISR Exception Abort\n");
/* if ((!regs) || (!regs->rip)) */
/* KeStartPanic("[ISR ?] Unknown ISR Exception Abort\n"); */
if ((regs->intNo >= 0x15) && (regs->intNo <= 0x1D))
return; // INTEL RESERVED
@ -341,20 +340,6 @@ static void EarlyExceptionHandler(ISRFrame_t *regs)
//
static void DoubleFaultHandler(ISRFrame_t *regs)
{
ulong StackGuardTwo = (ulong)MmGetStackGuards(1);
if (regs->rsp <= StackGuardTwo + 4*KB && (regs->rsp - 4*KB <= regs->cr2)) {
bprintf(BStdOut,
"\n\n%CPANIC\n[ISR 0x8] Irrecoverable Kernel Stack Overflow\n\n"
" Double Fault Error code : %#x (%b)\n"
" Stack Guard bypassed : %#x",
VGA_COLOR_LIGHT_RED,
regs->ErrorCode,
regs->ErrorCode,
StackGuardTwo
);
} else {
bprintf(BStdOut,
"\n\n%CPANIC\n[ISR 0x8] Irrecoverable Kernel Double Fault Abort\n\n"
" Error code : 0x%x (%b)",
@ -364,8 +349,6 @@ static void DoubleFaultHandler(ISRFrame_t *regs)
regs->ErrorCode
);
}
KeBrkDumpRegisters(regs);
BStdOut->flusher(BStdOut);

4
kaleid/kernel/ke/isr.asm
View File

@ -95,6 +95,10 @@ isrPreHandler:
iretq
Die:
hlt
jmp Die
;; Divide Error Fault
IsrWithoutErrCode 0

10
kaleid/kernel/ke/pit.c
View File

@ -37,6 +37,9 @@ static char TimeFmtBuf[22] = { 0 };
//
// ISR handler for the Programmable Interval Timer
//
#pragma GCC push_options
#pragma GCC optimize ("O0")
static void HandlePIT(ISRFrame_t *regs)
{
Ticks++;
@ -52,6 +55,7 @@ static void HandlePIT(ISRFrame_t *regs)
KeSendEOItoPIC(0x28);
}
}
#pragma GCC pop_options
static Timer_t* KeFindTimerBlock(void)
{
@ -63,6 +67,8 @@ static Timer_t* KeFindTimerBlock(void)
return NULL;
}
#pragma GCC push_options
#pragma GCC optimize ("O0")
void KeSleep(uint delay)
{
Timer_t *timerBlock;
@ -77,7 +83,10 @@ void KeSleep(uint delay)
}
timerBlock->sema = 0;
}
#pragma GCC pop_options
#pragma GCC push_options
#pragma GCC optimize ("O0")
Timer_t *KeSetTimer(uint delay)
{
Timer_t *timerBlock;
@ -89,6 +98,7 @@ Timer_t *KeSetTimer(uint delay)
return timerBlock;
}
#pragma GCC pop_options
int KeGetTimer(Timer_t *timerBlock)
{

8
kaleid/kernel/mm/gdt.c
View File

@ -45,6 +45,10 @@ void MmInitGdt(void)
gdt[1].access = 0x98;
gdt[1].flags = 0x20;
gdt[2].lowLimit = 0xFFFF;
gdt[2].access = 0x98;
gdt[2].flags = 0x20;
tssDesc.access = 0x89;
tssDesc.flags = 0x40;
tssDesc.lowBase = (ulong)&tss & 0xFFFF;
@ -53,7 +57,9 @@ void MmInitGdt(void)
tssDesc.veryHighBase = ((ulong)&tss >> 32) & 0xFFFFFFFF;
tssDesc.lowLimit = sizeof(tss);
tss.ist1 = 0x0007FFFF; // RESCUE STACK, GARANTIED FREE FOR USE BY OSDEV.ORG
tss.ist1 = (ulong)0x0007FFFF; // ISR RESCUE STACK, GARANTIED FREE FOR USE BY OSDEV.ORG
tss.ist2 = (ulong)0x00EFFFFF; // ISR STACK, GARANTIED FREE FOR USE BY OSDEV.ORG
tss.ist3 = (ulong)0x00EF0000; // ISR STACK, GARANTIED FREE FOR USE BY OSDEV.ORG
tss.iomap_base = sizeof(tss);
memmove(&gdt[2], &tssDesc, sizeof(TssDescriptor_t));

423
kaleid/kernel/mm/paging.c
View File

@ -1,39 +1,43 @@
#include <kernel.h>
#include <init/boot.h>
#include <ex/malloc.h>
#include <mm/heap.h>
#include <mm/mm.h>
#include <ke/idt.h>
#include <lib/buf.h>
#include <io/vga.h>
enum
{
MF_PRESENT = 1 << 0,
MF_READWRITE = 1 << 1,
MF_USERMODE = 1 << 2,
MF_WRITETHR = 1 << 3,
MF_CACHEDIS = 1 << 4,
MF_ACCESSED = 1 << 5,
MF_DIRTY = 1 << 6,
MF_HUGE = 1 << 7,
MF_NX = 1 << 31
};
#define RAM_MAX 32
#define NB_4K 150
// * 2 MB
#define USERSPACE 0x80000000
//-----------
volatile pdpe_t MmPML4[512] __attribute__((__aligned__(KPAGESIZE)));
pml4_t MmPageMapLevel4[512] __attribute__((__aligned__(KPAGESIZE)));
ulong *MmPhysicalPageTable;
volatile pde_t MmPDP[512] __attribute__((__aligned__(KPAGESIZE)));
volatile pde_t MmPD[512 * RAM_MAX] __attribute__((__aligned__(KPAGESIZE)));;
volatile pte_t MmPT[512 * NB_4K] __attribute__((__aligned__(KPAGESIZE)));;
extern ulong _text;
extern ulong _text_end;
extern ulong _rodata;
extern ulong _rodata_end;
extern ulong _data;
extern ulong _data_end;
ulong MmStackGuards[2] = { 0 };
ulong MmVirtLastAddress = 0;
enum
{
PRESENT = 1 << 0,
READWRITE = 1 << 1,
USERMODE = 1 << 2,
WRITETHR = 1 << 3,
CACHEDIS = 1 << 4,
ACCESSED = 1 << 5,
DIRTY = 1 << 6,
HUGE = 1 << 7,
NX = 1UL << 63
};
//-----------
//
// Creates our new page table structure and loads it
@ -41,140 +45,294 @@ ulong MmStackGuards[2] = { 0 };
void MmInitPaging(void)
{
extern MemoryMap_t memoryMap;
pdpe_t *MmPDP = NULL;
pde_t *MmPD = NULL;
pte_t *MmPT = NULL;
ulong index, xedni;
ulong firstDirectoryAddr = 0;
ulong lastDirectoryAddr = 0;
ulong phDirSize = 0;
// Maximum PHYSICAL address in memory
ulong phRamSize = memoryMap.freeRamSize + memoryMap.nonfreeRamSize;
memzero((void *)&MmPML4[0], sizeof(MmPML4));
memzero((void *)&MmPDP[0], sizeof(MmPDP));
memzero((void *)&MmPD[0], sizeof(MmPD));
memzero((void *)&MmPT[0], sizeof(MmPT));
// Difference between the end of kernel and the begin of userspace
ulong lastKernelAddr = (ulong)(_heap_start + _heap_max);
ulong diffKernUsr = (ulong)USERSPACE - lastKernelAddr - KPAGESIZE;
for (volatile ulong i = 0; i < 512 * NB_4K; i++) {
// STACK GUARD PAGE
if ((ulong)(i*KPAGESIZE) == (ulong)BtLoaderInfo.stackEndAddr) {
MmPT[i] = ((ulong)(i*KPAGESIZE));
MmStackGuards[0] = ((ulong)(i*KPAGESIZE));
continue;
// Maximum VIRTUAL address in memory
MmVirtLastAddress = phRamSize + diffKernUsr;
//DebugLog("\tPaging gap : %u MB (%p)\n\tLast virtual address %p\n", diffKernUsr / MB, diffKernUsr, MmVirtLastAddress);
memzero((void *)&MmPageMapLevel4[0], sizeof(MmPageMapLevel4));
phDirSize = ((phRamSize / KPAGESIZE)*sizeof(ulong) + KPAGESIZE) & ( ~(KPAGESIZE - 1));
MmPhysicalPageTable = (ulong*)malloc(phDirSize);
//DebugLog("\t\tRam %u MB, pagesize %u KB, size %u MB\n", phRamSize / MB, KPAGESIZE / KB, phDirSize / MB);
for (ulong curAddrPML4 = 0;
curAddrPML4 < MmVirtLastAddress;
curAddrPML4 += ((ulong)KPAGESIZE * 0x8000000)) {
// Create an entry in PML4 each 512GB
// 0x8000000 = 512 ^ 3
MmPDP = (pdpe_t *)malloc(512*sizeof(pde_t));
if (!firstDirectoryAddr) {
firstDirectoryAddr = (ulong)MmPDP;
}
// ENOMEM like
if ((ulong)(i*KPAGESIZE) > (ulong)phRamSize) {
break;
index = (curAddrPML4 / ((ulong)KPAGESIZE * 0x8000000)) % 512;
//DebugLog("\t\t\t\tPDP %d : %p\n", index, MmPDP);
MmPageMapLevel4[index] = (pdpe_t *)((ulong)MmPDP | PRESENT | READWRITE);
for (ulong curAddrPDP = curAddrPML4;
curAddrPDP < (curAddrPML4 + ((ulong)KPAGESIZE * 0x8000000)) &&
curAddrPDP < MmVirtLastAddress;
curAddrPDP += ((ulong)KPAGESIZE * 0x40000)) {
// Create an intry in PDP each 1GB
// 0x40000 = 512 ^ 2
MmPD = (pde_t *)malloc(512*sizeof(pde_t));
index = (curAddrPDP / ((ulong)KPAGESIZE * 0x40000)) % 512;
//DebugLog("\t\t\t\tPD %d : %p\n", index, MmPD);
MmPDP[index] = (pde_t *)((ulong)MmPD | PRESENT | READWRITE);
for (ulong curAddrPD = curAddrPDP;
curAddrPD < (curAddrPDP + ((ulong)KPAGESIZE * 0x40000)) &&
curAddrPD < MmVirtLastAddress;
curAddrPD += ((ulong)KPAGESIZE * 0x200)) {
// Create an intry in PD each 2MB
// 0x200 = 512
MmPT = (pte_t *)malloc(512*sizeof(pte_t));
index = (curAddrPD / ((ulong)KPAGESIZE * 0x200)) % 512;
//DebugLog("\t\t\t\tPT %d : %p\n", index, MmPT);
MmPD[index] = (pte_t *)((ulong)MmPT | PRESENT | READWRITE);
for (ulong curAddrPT = curAddrPD;
curAddrPT < (curAddrPD + ((ulong)KPAGESIZE * 0x200)) &&
curAddrPT < MmVirtLastAddress;
curAddrPT += (ulong)KPAGESIZE) {
// Create an entry in PT each page of 4KB
index = (curAddrPT / ((ulong)KPAGESIZE)) % 512;
xedni = (curAddrPT / ((ulong)KPAGESIZE));
//DebugLog("\t\t\t\tPage %d : %p\n", index, curAddrPT);
// STACK GUARD PAGE */
if ((ulong)curAddrPT == (ulong)BtLoaderInfo.stackEndAddr) {
MmPT[index] = (ulong)curAddrPT | PRESENT;
MmPhysicalPageTable[xedni] = (ulong)curAddrPT;
MmStackGuards[0] = (ulong)curAddrPT;
DebugLog("\tStack Guard at %p\n", curAddrPT);
}
else if ((ulong)curAddrPT == (ulong)BtLoaderInfo.kernelEndAddr) {
MmPT[index] = (ulong)curAddrPT | PRESENT;
MmPhysicalPageTable[xedni] = (ulong)curAddrPT;
MmStackGuards[1] = (ulong)curAddrPT;
DebugLog("\tStack Guard at %p\n", curAddrPT);
}
// SECTION .TEXT PROTECTION
else if ((ulong)curAddrPT >= (ulong)&_text && (ulong)curAddrPT <= (ulong)&_text_end) {
MmPT[index] = (ulong)curAddrPT | PRESENT;
MmPhysicalPageTable[xedni] = (ulong)curAddrPT;
//DebugLog("\tSection .text at %p\n", curAddrPT);
}
// SECTION .DATA PROTECTION
else if ((ulong)curAddrPT >= (ulong)&_data && (ulong)curAddrPT <= (ulong)&_data_end) {
MmPT[index] = (ulong)curAddrPT | PRESENT | WRITETHR | READWRITE | NX;
MmPhysicalPageTable[xedni] = (ulong)curAddrPT;
//DebugLog("\tSection .data at %p\n", curAddrPT);
}
// SECTION .RODATA PROTECTION
else if ((ulong)curAddrPT >= (ulong)&_rodata && (ulong)curAddrPT <= (ulong)&_rodata_end) {
MmPT[index] = (ulong)curAddrPT | PRESENT | WRITETHR | NX;
MmPhysicalPageTable[xedni] = (ulong)curAddrPT;
//DebugLog("\tSection .rodata at %p\n", curAddrPT);
}
// While we're inside the kernel pages
else if ((ulong)curAddrPT <= lastKernelAddr) {
MmPT[index] = (ulong)curAddrPT | PRESENT | READWRITE;
MmPhysicalPageTable[xedni] = (ulong)curAddrPT;
if ((ulong)curAddrPT == lastKernelAddr) {
//DebugLog("\tLast page of kernel at %p\n", curAddrPT);
}
}
// While we're inside the userspace pages
else if ((ulong)curAddrPT >= USERSPACE) {
MmPT[index] = ((ulong)curAddrPT - diffKernUsr) | PRESENT; // Not present for instance
xedni = (((ulong)curAddrPT - diffKernUsr) / ((ulong)KPAGESIZE));
MmPhysicalPageTable[xedni] = (ulong)curAddrPT;
if ((ulong)curAddrPT == USERSPACE) {
DebugLog("\tUserspace at %p:%p\n", curAddrPT, curAddrPT - diffKernUsr);
}
}
else {
MmPT[index] = 0;
}
// STACK GARD PAGE
if ((ulong)(i*KPAGESIZE) == (ulong)BtLoaderInfo.kernelEndAddr) {
MmPT[i] = ((ulong)(i*KPAGESIZE));
MmStackGuards[1] = ((ulong)(i*KPAGESIZE));
continue;
KeFlushTlbSingle(curAddrPT);
}
MmPT[i] = ((ulong)(i*KPAGESIZE)) | MF_PRESENT | MF_READWRITE;
}
for (volatile ulong i = 0; i < NB_4K; i++) {
MmPD[i] = (ulong)(&MmPT[i*512])| MF_PRESENT | MF_READWRITE;
}
for (volatile ulong i = NB_4K; i < 512 * RAM_MAX; i++) {
// ENOMEM like
if ((ulong)(i* UPAGESIZE) > (ulong)phRamSize) {
break;
}
lastDirectoryAddr = (ulong)MmPT;
MmPD[i] = 0;
MmPD[i] = ((ulong)(i* UPAGESIZE)) | MF_PRESENT | MF_READWRITE | MF_HUGE;
}
MmLoadPML4((void *)MmPageMapLevel4);
//MmEnableWriteProtect();
for (volatile int i = 0; i < RAM_MAX; i++) {
MmPDP[i] = (ulong)(&MmPD[i*512])| MF_PRESENT | MF_READWRITE;
}
MmPML4[0] = (ulong)(&MmPDP[0])| MF_PRESENT | MF_READWRITE;
MmLoadPML4((void *)MmPML4);
//DebugLog("\tPaging tables initialized at %p, %p\n", &MmPD, &MmPT);
//DebugLog("\tStack Guards at %p, %p\n", MmStackGuards[0], MmStackGuards[1]);
DebugLog("\tPage table size : %u MB\n", (lastDirectoryAddr - firstDirectoryAddr + phDirSize)/MB);
}
//
// Reloads the page tables
// Get a page from an address
//
void MmReloadPaging(void)
static pte_t *MmGetPageDescriptorFromVirtual(void *virtualAddr)
{
extern MemoryMap_t memoryMap;
ulong phRamSize = memoryMap.freeRamSize + memoryMap.nonfreeRamSize;
ulong virtAddrPage = (ulong)virtualAddr & ( ~(KPAGESIZE - 1));
for (volatile ulong i = 0; i < 512 * NB_4K; i++) {
// STACK GUARD PAGE
if ((ulong)(i*KPAGESIZE) == (ulong)BtLoaderInfo.stackEndAddr) {
MmPT[i] = ((ulong)(i*KPAGESIZE));
MmStackGuards[0] = ((ulong)(i*KPAGESIZE));
continue;
if (virtAddrPage > MmVirtLastAddress) {
KeStartPanic("MmSetPage() Out of bound of the address space !");
}
// ENOMEM like
if ((ulong)(i*KPAGESIZE) > (ulong)phRamSize) {
break;
pdpe_t *pdp = (pdpe_t*)((ulong)MmPageMapLevel4[(virtAddrPage / ((ulong)KPAGESIZE * 0x8000000)) % 512] & ~(KPAGESIZE - 1));
//DebugLog("pdp\t: %p\n", pdp);
pde_t *pd = (pde_t*)( (ulong)pdp[(virtAddrPage / ((ulong)KPAGESIZE * 0x40000)) % 512] & ~(KPAGESIZE - 1));
//DebugLog("pd\t: %p\n", pd);
pte_t *pt = (pte_t*)( (ulong)pd[(virtAddrPage / ((ulong)KPAGESIZE * 0x200)) % 512] & ~(KPAGESIZE - 1));
//DebugLog("pt\t: %p\n", pt);
pte_t *page = &pt[(virtAddrPage / ((ulong)KPAGESIZE)) % 512];
//DebugLog("page (with flags): %p\n", page);
return page;
}
// STACK GARD PAGE
if ((ulong)(i*KPAGESIZE) == (ulong)BtLoaderInfo.kernelEndAddr) {
MmPT[i] = ((ulong)(i*KPAGESIZE));
MmStackGuards[1] = ((ulong)(i*KPAGESIZE));
continue;
//
// Translates a virtual address to its physical equivalent
//
void *MmTransVirtToPhyAddr(void* virtualAddr)
{
ulong virtAddrPage = (ulong)virtualAddr & ( ~(KPAGESIZE - 1));
pte_t *page = MmGetPageDescriptorFromVirtual(virtualAddr);
if (*page == (*page & ~(KPAGESIZE - 1))) {
return NULL;
}
MmPT[i] = ((ulong)(i*KPAGESIZE)) | MF_PRESENT | MF_READWRITE;
return (void*)((*page & ~(KPAGESIZE - 1))+ ((ulong)virtualAddr - (ulong)virtAddrPage));
}
for (volatile ulong i = 0; i < NB_4K; i++) {
MmPD[i] = (ulong)(&MmPT[i*512])| MF_PRESENT | MF_READWRITE;
void *MmTransPhyToVirtAddr(void* physicalAddr)
{
ulong phyAddrPage = (ulong)physicalAddr & ( ~(KPAGESIZE - 1));
return (void*)( MmPhysicalPageTable[(ulong)physicalAddr
/ ((ulong)KPAGESIZE)
+ ((ulong)physicalAddr - phyAddrPage) ] );
}
for (volatile ulong i = NB_4K; i < 512 * RAM_MAX; i++) {
// ENOMEM like
if ((ulong)(i* UPAGESIZE) > (ulong)phRamSize) {
break;
//
// Add flags to a page
//
void MmSetPage(void* virtualAddr, ulong flags)
{
pte_t *page = MmGetPageDescriptorFromVirtual(virtualAddr);
*page |= flags;
KeFlushTlbSingle(*page);
}
MmPD[i] = 0;
MmPD[i] = ((ulong)(i* UPAGESIZE)) | MF_PRESENT | MF_READWRITE | MF_HUGE;
//
// Remove flags of a page
//
void MmUnsetPage(void* virtualAddr, ulong flags)
{
pte_t *page = MmGetPageDescriptorFromVirtual(virtualAddr);
*page &= (~flags);
KeFlushTlbSingle(*page);
}
for (volatile int i = 0; i < RAM_MAX; i++) {
MmPDP[i] = (ulong)(&MmPD[i*512])| MF_PRESENT | MF_READWRITE;
//
// Map a page in memory
//
void MmMapPage(void* virtualAddr, void* physicalAddr, ulong flags)
{
pte_t *page = MmGetPageDescriptorFromVirtual(virtualAddr);
*page = ((ulong)physicalAddr & ~(KPAGESIZE - 1)) | flags;
KeFlushTlbSingle(*page);
}
MmPML4[0] = (ulong)(&MmPDP[0])| MF_PRESENT | MF_READWRITE;
//
// Unmap a page in memory
//
void MmUnmapPage(void* virtualAddr)
{
pte_t *page = MmGetPageDescriptorFromVirtual(virtualAddr);
MmLoadPML4((void *)MmPML4);
DebugLog("\tPaging tables initialized at %p, %p\n", &MmPD, &MmPT);
DebugLog("\tStack Guards at %p, %p\n", MmStackGuards[0], MmStackGuards[1]);
*page = 0;
KeFlushTlbSingle(*page);
}
//
// Kernel Page allocator
//
void *MmKAllocPageBlock(void *start) {
pte_t *startPage = MmGetPageDescriptorFromVirtual(start);
//for (ulong curPage = 0; curPage < )
return NULL;
}
//
// User page allocator
//
void *MmUAllocPageBlock(void *start) {
pte_t *startPage = MmGetPageDescriptorFromVirtual(start);
//for (ulong curPage = 0; curPage < )
return NULL;
}
//-----------
//
// Returns the rank of the Stack Guards
//
void *MmGetStackGuards(char rank)
{
return (void *)MmStackGuards[(int)rank];
}
// Returns an address corresponding to the PT rank
void *MmTranslateKPageToAddr(void *rank)
{
return (void *)MmPT[(ulong)rank];
}
//
// Page fault handler
//
static void PagingHandler(ISRFrame_t *regs)
{
ulong StackGuardOne = (ulong)MmGetStackGuards(0);
if (regs->cr2 >= StackGuardOne && (regs->rsp + 4*KB >= regs->cr2)) {
ulong StackGuardTwo = (ulong)MmGetStackGuards(1);
if ((regs->cr2 >= StackGuardOne) && (regs->cr2 <= StackGuardOne + KPAGESIZE) && (regs->rsp <= regs->cr2)) {
bprintf(BStdOut,
"\n\n%CPANIC\n[ISR 0x8] Irrecoverable Kernel Stack Underflow\n\n"
" Double Fault Error code : %#x (%b)\n"
" Page Fault Error code : %#x (%b)\n"
" Stack Guard bypassed : %#x",
VGA_COLOR_LIGHT_RED,
@ -182,19 +340,68 @@ static void PagingHandler(ISRFrame_t *regs)
regs->ErrorCode,
StackGuardOne
);
} else {
//XXX page fault
bprintf(BStdOut, "\n\n%CPANIC\n[ISR 0x%x] Irrecoverable Kernel Page Fault at %p\n\n"
" Error code : 0x%x (%b)",
} else if ((regs->cr2 >= StackGuardTwo) && (regs->cr2 <= StackGuardTwo + KPAGESIZE) && (regs->rsp >= regs->cr2)) {
bprintf(BStdOut,
"\n\n%CPANIC\n[ISR 0x8] Irrecoverable Kernel Stack Overflow\n\n"
" Page Fault Error code : %#x (%b)\n"
" Stack Guard bypassed : %#x",
VGA_COLOR_LIGHT_RED,
regs->ErrorCode,
regs->ErrorCode,
StackGuardTwo
);
} else if (regs->cr2 == 0) {
bprintf(BStdOut,
"\n\n%CPANIC\n[ISR 0x8] Null vector exception !\n\n"
" Page Fault Error code : %#x (%b)\n",
VGA_COLOR_LIGHT_RED,
regs->intNo,
regs->ErrorCode,
regs->ErrorCode
);
} else if (regs->cr2 >= MmVirtLastAddress || regs->cr2 <= 0) {
bprintf(BStdOut,
"\n\n%CPANIC\n[ISR 0x8] Out of bound of the address space at %p !\n\n"
" End of the address space : %p\n"
" Page Fault Error code : %#x (%b)\n",
VGA_COLOR_LIGHT_RED,
regs->cr2,
MmVirtLastAddress,
regs->ErrorCode,
regs->ErrorCode
);
} else {
//XXX page fault
bprintf(BStdOut, "\n\n%CPANIC\n[ISR 0x8] Irrecoverable Page Fault at %p\n\n"
" Error code : 0x%x (%b)",
VGA_COLOR_LIGHT_RED,
regs->cr2,
regs->ErrorCode,
regs->ErrorCode
);
}
bprintf(BStdOut, "\n Description : ");
if (regs->ErrorCode & PRESENT) {
bprintf(BStdOut, "Page-protection violation ");
} else {
bprintf(BStdOut, "Non present page ");
}
if (regs->ErrorCode & READWRITE) {
bprintf(BStdOut, "during write access ");
} else {
bprintf(BStdOut, "during read access ");
}
if (regs->ErrorCode & (1 << 3))
bprintf(BStdOut, "from userspace ");
if (regs->ErrorCode & (1 << 4))
bprintf(BStdOut, "after instruction fetching ");
KeBrkDumpRegisters(regs);
BStdOut->flusher(BStdOut);

3
kaleid/kernel/sh/shell.c
View File

@ -126,9 +126,8 @@ void ShStartShell(void)
default:
while (IoGetScroll() > 0) {
IoSetScroll(1);
IoScrollDown();
}
*bufptr++ = (char)ch;

129
kaleid/kernel/sh/testcmds.c
View File

@ -55,6 +55,19 @@ error_t CmdArgs(int argc, char **argv, char *cmdline)
return EOK;
}
error_t CmdAtoi(int argc, char **argv, char *cmdline)
{
int i;
KernLog("cmdline: '%s'\nargc: %d\n", cmdline, argc);
for (i = 0; i < argc; i++) {
KernLog("argv[%d]: '%u'\n", i, atoi(argv[i]));
}
return EOK;
}
error_t CmdDumpATASect(int argc, char **argv, char *cmdline)
{
char sector[512] = {0};
@ -96,6 +109,42 @@ error_t CmdDumpATASect(int argc, char **argv, char *cmdline)
return EOK;
}
error_t CmdDumpMem(int argc, char **argv, char *cmdline)
{
char sector[1024] = {0};
char *address = (char*)strtoul(argv[1], NULL, 16);
int nb = 1; //atoi(argv[2]);
int x = 0;
int step = 16;
KernLog("Address begin: %p\n", address);
for (int i = 0; i < 1024*nb; i++) {
sector[i] = *address++;
}
while(x < 1024*nb) {
KernLog("%C", shcol);
for (int i = 0; i < step; i++) {
KernLog("%02x ", (uchar)sector[i+x]);
}
KernLog(" %C ", VGA_COLOR_LIGHT_BLUE);
for (int i = 0; i < step; i++) {
if (isprint(sector[i+x]))
KernLog("%c",
sector[i+x]
);
else
KernLog("%c", 0);
}
KernLog("\n");
x += step;
}
KernLog("\n\n");
return EOK;
}
error_t CmdFloatDiv(int argc, char **argv, char *cmdline)
{
double a = (double)atoi(argv[1]);
@ -140,22 +189,79 @@ error_t CmdHelpTest(int argc, char **argv, char *cmdline)
return EOK;
}
error_t CmdPF(int argc, char **argv, char *cmdline)
error_t CmdPageTranslateVirtToPhy(int argc, char **argv, char *cmdline)
{
char *address = (void*)(ulong)atoi(argv[1]);
void *address = (void*)atoul(argv[1]);
KernLog("Provoking Page Fault at %#x\n", address);
if (!(void*)strtoul(argv[1], NULL, 16)) {
KernLog("No argument : translating the userspace address\n");
address = (void *)0x80000000;
}
*address = 1;
void *translation = MmTransVirtToPhyAddr(address);
KernLog("No page fault : address was valid/present\n");
KernLog("Translation of %p is %p\n", address, translation);
return EOK;
}
enum
{
PRESENT = 1 << 0,
READWRITE = 1 << 1,
USERMODE = 1 << 2,
WRITETHR = 1 << 3,
CACHEDIS = 1 << 4,
ACCESSED = 1 << 5,
DIRTY = 1 << 6,
HUGE = 1 << 7,
NX = 1UL << 63
};
error_t CmdPageMap(int argc, char **argv, char *cmdline)
{
void *virtual = (void*)strtoul(argv[1], NULL, 16);
void *physical = (void*)strtoul(argv[2], NULL, 16);
MmMapPage(virtual, physical, PRESENT | READWRITE);
return EOK;
}
error_t CmdReloadPage(int argc, char **argv, char *cmdline)
error_t CmdPageUnmap(int argc, char **argv, char *cmdline)
{
MmReloadPaging();
void *virtual = (void*)strtoul(argv[1], NULL, 16);
MmUnmapPage(virtual);
return EOK;
}
error_t CmdPageTranslatePhyToVirt(int argc, char **argv, char *cmdline)
{
void *address = (void*)strtoul(argv[1], NULL, 16);
/* if (!(void*)atoul(argv[1])) { */
/* address = (ulong *)0x80000000; */
/* } */
void *translation = MmTransPhyToVirtAddr(address);
KernLog("Translation of %p is %p\n", address, translation);
return EOK;
}
error_t CmdPF(int argc, char **argv, char *cmdline)
{
ulong *address = (ulong*)(ulong)strtoul(argv[1], NULL, 16);
KernLog("Provoking Page Fault at %#x\n", address);
KernLog("It contained %#x\n", *address);
*address = 1;
KernLog("Now it contains %#x\n", *address);
KernLog("No page fault : address was valid/present\n");
return EOK;
}
@ -199,11 +305,18 @@ error_t CmdTimerTest(int argc, char **argv, char *cmdline)
static Command_t testcmdtable[] =
{
{ "args", CmdArgs, "Print command line" },
{ "atoi", CmdAtoi, "Print command line atoised" },
{ "dmpsec", CmdDumpATASect, "Dump an ATA sector on screen" },
{ "dmp", CmdDumpMem, "Dump 1MB of memory starting from addr"},
{ "help", CmdHelpTest, "Show this message" },
{ "div", CmdFloatDiv, "Float div. Usage : div a b. Returns a/b"},
{ "transvtp", CmdPageTranslateVirtToPhy, "Translate a virtual to"
" physical address (paging)"},
{ "transptv", CmdPageTranslatePhyToVirt, "Translate a physical to"
" virtual address (paging)"},
{ "pmap", CmdPageMap, "Map a page to given physical addr" },
{ "punmap", CmdPageUnmap, "Unmap a page" },
{ "pf", CmdPF, "Provoke a PF. Usage: pfault <address>"},
{ "rpag", CmdReloadPage, "Reload the pages directory" },
{ "shell", CmdShell, "Start a new shell (nested)", },
{ "stkov", CmdStackOverflow, "Provoke a stack overflow" },
{ "stkun", CmdStackUnderflow, "Provoke a stack underflow" },