amd64
[Miscellanea]


Files
file	arch.h
file	arg.h
file	asm.h
file	atomic.h
file	boot.h
file	byteorder.h
file	context.h
file	cpu.h
file	cpuid.h
file	vesa.h
file	elf.h
file	faddr.h
file	memstr.h
file	pm.h
file	syscall.h
file	types.h
file	amd64.c
file	cpu.c
file	fpu_context.c
file	pm.c
file	syscall.c
file	userspace.c
Data Structures
struct	context
struct	cpu_arch
struct	star_msr
struct	lstar_msr
struct	cpu_info
struct	descriptor
struct	tss_descriptor
struct	idescriptor
struct	ptr_16_64
struct	ptr_16_32
struct	tss
Defines
#define	GEN_READ_REG(reg)
#define	GEN_WRITE_REG(reg)
#define	atomic_preinc(val) (atomic_postinc(val)+1)
#define	atomic_predec(val) (atomic_postdec(val)-1)
#define	BOOT_OFFSET 0x108000
#define	AP_BOOT_OFFSET 0x8000
#define	BOOT_STACK_SIZE 0x400
#define	MULTIBOOT_HEADER_MAGIC 0x1BADB002
#define	MULTIBOOT_HEADER_FLAGS 0x00010003
#define	MULTIBOOT_LOADER_MAGIC 0x2BADB002
#define	__native_le2host(n) (n)
#define	__u64_le2host(n) (n)
#define	SP_DELTA 16
#define	RFLAGS_IF (1 << 9)
#define	RFLAGS_RF (1 << 16)
#define	EFER_MSR_NUM 0xc0000080
#define	AMD_SCE_FLAG 0
#define	AMD_LME_FLAG 8
#define	AMD_LMA_FLAG 10
#define	AMD_FFXSR_FLAG 14
#define	AMD_NXE_FLAG 11
#define	AMD_MSR_STAR 0xc0000081
#define	AMD_MSR_LSTAR 0xc0000082
#define	AMD_MSR_SFMASK 0xc0000084
#define	AMD_MSR_FS 0xc0000100
#define	AMD_MSR_GS 0xc0000101
#define	AMD_CPUID_EXTENDED 0x80000001
#define	AMD_EXT_NOEXECUTE 20
#define	INTEL_CPUID_STANDARD 0x1
#define	INTEL_SSE2 26
#define	INTEL_FXSAVE 24
#define	ELF_MACHINE EM_X86_64
#define	ELF_DATA_ENCODING ELFDATA2LSB
#define	ELF_CLASS ELFCLASS64
#define	FADDR(fptr) ((__address) (fptr))
#define	IDT_ITEMS 64
#define	GDT_ITEMS 8
#define	NULL_DES 0
#define	KTEXT_DES 1
#define	KDATA_DES 2
#define	UDATA_DES 3
#define	UTEXT_DES 4
#define	KTEXT32_DES 5
#define	TSS_DES 6
#define	gdtselector(des) ((des)<<3)
#define	idtselector(des) ((des)<<4)
#define	PL_KERNEL 0
#define	PL_USER 3
#define	AR_PRESENT (1<<7)
#define	AR_DATA (2<<3)
#define	AR_CODE (3<<3)
#define	AR_WRITABLE (1<<1)
#define	AR_READABLE (1<<1)
#define	AR_TSS (0x9)
#define	AR_INTERRUPT (0xe)
#define	AR_TRAP (0xf)
#define	DPL_KERNEL (PL_KERNEL<<5)
#define	DPL_USER (PL_USER<<5)
#define	TSS_BASIC_SIZE 104
#define	TSS_IOMAP_SIZE (16*1024+1)
#define	IO_PORTS (64*1024)
#define	NULL 0
#define	AMD_CPUID_EBX 0x68747541
#define	AMD_CPUID_ECX 0x444d4163
#define	AMD_CPUID_EDX 0x69746e65
#define	INTEL_CPUID_EBX 0x756e6547
#define	INTEL_CPUID_ECX 0x6c65746e
#define	INTEL_CPUID_EDX 0x49656e69
Typedefs
typedef descriptor	descriptor_t
typedef tss_descriptor	tss_descriptor_t
typedef idescriptor	idescriptor_t
typedef ptr_16_64	ptr_16_64_t
typedef ptr_16_32	ptr_16_32_t
typedef tss	tss_t
typedef signed char	__s8
typedef signed short	__s16
typedef signed int	__s32
typedef signed long long	__s64
typedef unsigned char	__u8
typedef unsigned short	__u16
typedef unsigned int	__u32
typedef unsigned long long	__u64
typedef __u64	__address
typedef __u64	pfn_t
typedef __u64	ipl_t
typedef __u64	__native
typedef __s64	__snative
typedef page_specifier	pte_t
Enumerations
enum	vendor { VendorUnknown = 0, VendorAMD, VendorIntel }
Functions
void	asm_delay_loop (__u32 t)
void	asm_fake_loop (__u32 t)
static __address	get_stack_base (void)
static void	cpu_sleep (void)
static void	cpu_halt (void)
static __u8	inb (__u16 port)
static void	outb (__u16 port, __u8 val)
static void	swapgs (void)
static ipl_t	interrupts_enable (void)
static ipl_t	interrupts_disable (void)
static void	interrupts_restore (ipl_t ipl)
static ipl_t	interrupts_read (void)
static void	write_msr (__u32 msr, __u64 value)
static __native	read_msr (__u32 msr)
static void	enable_l_apic_in_msr ()
static __address *	get_ip ()
static void	invlpg (__address addr)
static void	gdtr_load (struct ptr_16_64 *gdtr_reg)
static void	gdtr_store (struct ptr_16_64 *gdtr_reg)
static void	idtr_load (struct ptr_16_64 *idtr_reg)
static void	tr_load (__u16 sel)
	GEN_READ_REG (cr0)
	GEN_READ_REG (cr2)
	GEN_READ_REG (cr3)
	GEN_WRITE_REG (cr3)
	GEN_READ_REG (dr0)
	GEN_READ_REG (dr1)
	GEN_READ_REG (dr2)
	GEN_READ_REG (dr3)
	GEN_READ_REG (dr6)
	GEN_READ_REG (dr7)
	GEN_WRITE_REG (dr0)
	GEN_WRITE_REG (dr1)
	GEN_WRITE_REG (dr2)
	GEN_WRITE_REG (dr3)
	GEN_WRITE_REG (dr6)
	GEN_WRITE_REG (dr7)
void	interrupt_handlers (void)
static void	atomic_inc (atomic_t *val)
static void	atomic_dec (atomic_t *val)
static long	atomic_postinc (atomic_t *val)
static long	atomic_postdec (atomic_t *val)
static __u64	test_and_set (atomic_t *val)
static void	atomic_lock_arch (atomic_t *val)
void	set_efer_flag (int flag)
__u64	read_efer_flag (void)
void	cpu_setup_fpu (void)
int	has_cpuid (void)
void	cpuid (__u32 cmd, cpu_info_t *info)
__u64	rdtsc (void)
int	vesa_present (void)
void	vesa_init (void)
static void *	memcpy (void dst, const void src, size_t cnt)
static int	memcmp (const void src, const void dst, size_t cnt)
static void	memsetw (__address dst, size_t cnt, __u16 x)
static void	memsetb (__address dst, size_t cnt, __u8 x)
void	pm_init (void)
void	gdt_tss_setbase (descriptor_t *d, __address base)
void	gdt_tss_setlimit (descriptor_t *d, __u32 limit)
void	idt_init (void)
void	idt_setoffset (idescriptor_t *d, __address offset)
void	tss_initialize (tss_t *t)
void	syscall_setup_cpu (void)
static void	clean_IOPL_NT_flags (void)
static void	clean_AM_flag (void)
void	arch_pre_mm_init (void)
void	arch_post_mm_init (void)
void	arch_pre_smp_init (void)
void	arch_post_smp_init (void)
void	calibrate_delay_loop (void)
__native	sys_tls_set (__native addr)
void	arch_grab_console (void)
void	arch_release_console (void)
void	fpu_disable (void)
void	fpu_enable (void)
void	cpu_arch_init (void)
void	cpu_identify (void)
void	cpu_print_report (cpu_t *m)
void	fpu_context_save (fpu_context_t *fctx)
void	fpu_context_restore (fpu_context_t *fctx)
void	fpu_init ()
void	syscall_entry (void)
void	userspace (uspace_arg_t *kernel_uarg)
Variables
size_t	interrupt_handler_size
context	packed
cpu_info	packed
descriptor	packed
tss_descriptor	packed
idescriptor	packed
ptr_16_64	packed
ptr_16_32	packed
tss	packed
tss_t *	tss_p
descriptor_t	gdt []
idescriptor_t	idt []
ptr_16_64_t	gdtr
ptr_16_32_t	bootstrap_gdtr
ptr_16_32_t	protected_ap_gdtr
static char *	vendor_str []
descriptor_t	gdt [GDT_ITEMS]
idescriptor_t	idt [IDT_ITEMS]
ptr_16_64_t	gdtr = {.limit = sizeof(gdt), .base= (__u64) gdt }
ptr_16_64_t	idtr = {.limit = sizeof(idt), .base= (__u64) idt }
static tss_t	tss
tss_t *	tss_p = NULL

Define Documentation

#define __native_le2host ( n ) (n)

Definition at line 39 of file byteorder.h.

#define __u64_le2host ( n ) (n)

Definition at line 40 of file byteorder.h.
Referenced by get_symbol_addr(), get_symtab_entry(), and symtab_print_search().

#define AMD_CPUID_EBX 0x68747541

Definition at line 49 of file cpu.c.
Referenced by cpu_identify().

#define AMD_CPUID_ECX 0x444d4163

Definition at line 50 of file cpu.c.
Referenced by cpu_identify().

#define AMD_CPUID_EDX 0x69746e65

Definition at line 51 of file cpu.c.
Referenced by cpu_identify().

#define AMD_CPUID_EXTENDED 0x80000001

Definition at line 38 of file cpuid.h.
Referenced by arch_pre_mm_init().

#define AMD_EXT_NOEXECUTE 20

Definition at line 39 of file cpuid.h.
Referenced by arch_pre_mm_init().

#define AMD_FFXSR_FLAG 14

Definition at line 45 of file cpu.h.

#define AMD_LMA_FLAG 10

Definition at line 44 of file cpu.h.

#define AMD_LME_FLAG 8

Definition at line 43 of file cpu.h.

#define AMD_MSR_FS 0xc0000100

Definition at line 52 of file cpu.h.
Referenced by before_thread_runs_arch(), and sys_tls_set().

#define AMD_MSR_GS 0xc0000101

Definition at line 53 of file cpu.h.
Referenced by before_thread_runs_arch().

#define AMD_MSR_LSTAR 0xc0000082

Definition at line 50 of file cpu.h.
Referenced by syscall_setup_cpu().

#define AMD_MSR_SFMASK 0xc0000084

Definition at line 51 of file cpu.h.
Referenced by syscall_setup_cpu().

#define AMD_MSR_STAR 0xc0000081

Definition at line 49 of file cpu.h.
Referenced by syscall_setup_cpu().

#define AMD_NXE_FLAG 11

Definition at line 46 of file cpu.h.
Referenced by arch_pre_mm_init().

#define AMD_SCE_FLAG 0

Definition at line 42 of file cpu.h.
Referenced by syscall_setup_cpu().

#define AP_BOOT_OFFSET 0x8000

Definition at line 39 of file boot.h.

#define AR_CODE (3<<3)

Definition at line 79 of file pm.h.

#define AR_DATA (2<<3)

Definition at line 78 of file pm.h.

#define AR_INTERRUPT (0xe)

Definition at line 83 of file pm.h.
Referenced by idt_init().

#define AR_PRESENT (1<<7)

Definition at line 77 of file pm.h.

#define AR_READABLE (1<<1)

Definition at line 81 of file pm.h.

#define AR_TRAP (0xf)

Definition at line 84 of file pm.h.

#define AR_TSS (0x9)

Definition at line 82 of file pm.h.
Referenced by io_perm_bitmap_install(), and pm_init().

#define AR_WRITABLE (1<<1)

Definition at line 80 of file pm.h.

#define atomic_predec ( val ) (atomic_postdec(val)-1)

Definition at line 84 of file atomic.h.

#define atomic_preinc ( val ) (atomic_postinc(val)+1)

Definition at line 83 of file atomic.h.
Referenced by check_call_limit(), ipc_irq_send_msg(), and ipc_irq_send_notif().

#define BOOT_OFFSET 0x108000

Definition at line 38 of file boot.h.

#define BOOT_STACK_SIZE 0x400

Definition at line 40 of file boot.h.

#define DPL_KERNEL (PL_KERNEL<<5)

Definition at line 86 of file pm.h.

#define DPL_USER (PL_USER<<5)

Definition at line 87 of file pm.h.

#define EFER_MSR_NUM 0xc0000080

Definition at line 41 of file cpu.h.

#define ELF_CLASS ELFCLASS64

Definition at line 40 of file elf.h.
Referenced by elf_load().

#define ELF_DATA_ENCODING ELFDATA2LSB

Definition at line 39 of file elf.h.
Referenced by elf_load().

#define ELF_MACHINE EM_X86_64

Definition at line 38 of file elf.h.
Referenced by elf_load().

#define FADDR ( fptr ) ((__address) (fptr))

Definition at line 40 of file faddr.h.
Referenced by main_ap(), scheduler(), and thread_create().

#define GDT_ITEMS 8

Definition at line 45 of file pm.h.

#define gdtselector ( des ) ((des)<<3)

Definition at line 71 of file pm.h.
Referenced by idt_init(), io_perm_bitmap_install(), pm_init(), syscall_setup_cpu(), and userspace().

#define GEN_READ_REG ( reg )

Value:
static inline __native read_ ##reg (void) \ { \ __native res; \ __asm__ volatile ("movq %%" #reg ", %0" : "=r" (res) ); \ return res; \ }

Definition at line 246 of file asm.h.

#define GEN_WRITE_REG ( reg )

Value:
static inline void write_ ##reg (__native regn) \ { \ __asm__ volatile ("movq %0, %%" #reg : : "r" (regn)); \ }

Definition at line 253 of file asm.h.

#define IDT_ITEMS 64

Definition at line 44 of file pm.h.
Referenced by idt_init().

#define idtselector ( des ) ((des)<<4)

Definition at line 72 of file pm.h.

#define INTEL_CPUID_EBX 0x756e6547

Definition at line 53 of file cpu.c.
Referenced by cpu_identify().

#define INTEL_CPUID_ECX 0x6c65746e

Definition at line 54 of file cpu.c.
Referenced by cpu_identify().

#define INTEL_CPUID_EDX 0x49656e69

Definition at line 55 of file cpu.c.
Referenced by cpu_identify().

#define INTEL_CPUID_STANDARD 0x1

Definition at line 41 of file cpuid.h.
Referenced by arch_pre_mm_init().

#define INTEL_FXSAVE 24

Definition at line 43 of file cpuid.h.
Referenced by arch_pre_mm_init().

#define INTEL_SSE2 26

Definition at line 42 of file cpuid.h.
Referenced by arch_pre_mm_init().

#define IO_PORTS (64*1024)

Definition at line 92 of file pm.h.
Referenced by ddi_iospace_enable_arch().

#define KDATA_DES 2

Definition at line 51 of file pm.h.
Referenced by syscall_setup_cpu().

#define KTEXT32_DES 5

Definition at line 54 of file pm.h.

#define KTEXT_DES 1

Definition at line 50 of file pm.h.
Referenced by idt_init(), and syscall_setup_cpu().

#define MULTIBOOT_HEADER_FLAGS 0x00010003

Definition at line 43 of file boot.h.

#define MULTIBOOT_HEADER_MAGIC 0x1BADB002

Definition at line 42 of file boot.h.

#define MULTIBOOT_LOADER_MAGIC 0x2BADB002

Definition at line 45 of file boot.h.

#define NULL 0

Definition at line 38 of file types.h.
Referenced by _btree_insert(), _btree_remove(), _rwlock_read_lock_timeout(), _slab_reclaim(), _waitq_wakeup_unsafe(), acpi_init(), anon_share(), as_area_create(), breakpoint_del(), btree_init(), btree_insert(), btree_leaf_node_left_neighbour(), btree_leaf_node_right_neighbour(), btree_search(), buddy_system_alloc(), check_area_conflicts(), clock_counter_init(), cmdtab_compl(), code_from_uspace(), cpu_arch_init(), debugger_init(), elf_share(), fb_init(), find_best_thread(), find_free_zone_lock(), find_zone_and_lock(), frame_alloc_generic(), frame_free(), frame_reference_add(), futex_find(), get_call(), get_full_current_mag(), get_mag_from_cache(), get_symbol_addr(), i8042_init(), ipc_init(), ipc_irq_cleanup(), ipc_irq_make_table(), ipc_irq_register(), ipc_irq_unregister(), ipc_phone_init(), ipc_wait_for_call(), kcpulb(), kinit(), klog_init(), ktaskclnp(), ktaskgc(), let_others_in(), link_initialize(), magazine_destroy(), magazine_obj_get(), main_bsp_separated_stack(), make_empty_current_mag(), node_initialize(), parse_argument(), parse_cmdline(), print_string(), printf_putstr(), pt_mapping_find(), rotate_from_left(), rotate_from_right(), scheduler(), scheduler_separated_stack(), slab_alloc(), slab_cache_init(), slab_free(), slab_obj_create(), slab_space_alloc(), sys_as_area_create(), sys_ipc_answer(), sys_ipc_answer_fast(), sys_sysinfo_valid(), sys_sysinfo_value(), sysinfo_create_path(), sysinfo_dump(), sysinfo_find_item(), sysinfo_get_val(), sysinfo_set_item_function(), sysinfo_set_item_undefined(), sysinfo_set_item_val(), task_create(), task_create_arch(), task_destroy(), task_init(), task_kill(), task_run_program(), the_initialize(), thr_constructor(), thread_create(), thread_destroy(), thread_exists(), thread_init(), timeout_register(), timeout_reinitialize(), uinit(), vprintf(), waitq_interrupt_sleep(), waitq_timeouted_sleep(), zone_buddy_find_block(), zone_buddy_find_buddy(), zone_print_list(), and zone_print_one().

#define NULL_DES 0

Definition at line 48 of file pm.h.

#define PL_KERNEL 0

Definition at line 74 of file pm.h.
Referenced by pm_init(), and syscall_setup_cpu().

#define PL_USER 3

Definition at line 75 of file pm.h.
Referenced by syscall_setup_cpu(), and userspace().

#define RFLAGS_IF (1 << 9)

Definition at line 38 of file cpu.h.

#define RFLAGS_RF (1 << 16)

Definition at line 39 of file cpu.h.
Referenced by debug_exception().

#define SP_DELTA 16

Definition at line 47 of file context.h.
Referenced by before_thread_runs_arch().

#define TSS_BASIC_SIZE 104

Definition at line 89 of file pm.h.
Referenced by io_perm_bitmap_install(), and pm_init().

#define TSS_DES 6

Definition at line 56 of file pm.h.
Referenced by io_perm_bitmap_install(), and pm_init().

#define TSS_IOMAP_SIZE (16*1024+1)

Definition at line 90 of file pm.h.
Referenced by io_perm_bitmap_install().

#define UDATA_DES 3

Definition at line 52 of file pm.h.
Referenced by userspace().

#define UTEXT_DES 4

Definition at line 53 of file pm.h.
Referenced by userspace().

Typedef Documentation

typedef __u64 __address

Definition at line 50 of file types.h.

typedef __u64 __native

Definition at line 56 of file types.h.

typedef signed short __s16

Definition at line 41 of file types.h.

typedef signed int __s32

Definition at line 42 of file types.h.

typedef signed long long __s64

Definition at line 43 of file types.h.

typedef signed char __s8

Definition at line 40 of file types.h.

typedef __s64 __snative

Definition at line 57 of file types.h.

typedef unsigned short __u16

Definition at line 46 of file types.h.

typedef unsigned int __u32

Definition at line 47 of file types.h.

typedef unsigned long long __u64

Definition at line 48 of file types.h.

typedef unsigned char __u8

Definition at line 45 of file types.h.

typedef struct descriptor descriptor_t

Definition at line 108 of file pm.h.

typedef struct idescriptor idescriptor_t

Definition at line 140 of file pm.h.

typedef __u64 ipl_t

Definition at line 54 of file types.h.

typedef __u64 pfn_t

Definition at line 51 of file types.h.

typedef struct page_specifier pte_t

Definition at line 59 of file types.h.

typedef struct ptr_16_32 ptr_16_32_t

Definition at line 152 of file pm.h.

typedef struct ptr_16_64 ptr_16_64_t

Definition at line 146 of file pm.h.

typedef struct tss_descriptor tss_descriptor_t

Definition at line 126 of file pm.h.

typedef struct tss tss_t

Definition at line 172 of file pm.h.

Enumeration Type Documentation

enum vendor

Enumerator:

VendorUnknown

VendorAMD

VendorIntel

Definition at line 58 of file cpu.c.

Function Documentation

void arch_grab_console ( void )

Acquire console back for kernel
Definition at line 199 of file amd64.c.
References i8042_grab().
Referenced by sys_debug_enable_console().
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void arch_post_mm_init ( void )

Definition at line 140 of file amd64.c.
References config, config_t::cpu_active, debugger_init(), syscall_setup_cpu(), vesa_init(), vesa_present(), and zone_merge_all().
Referenced by main_ap(), and main_bsp_separated_stack().
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void arch_post_smp_init ( void )

Definition at line 170 of file amd64.c.
References i8042_init().
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void arch_pre_mm_init ( void )

Definition at line 98 of file amd64.c.
References AMD_CPUID_EXTENDED, AMD_EXT_NOEXECUTE, AMD_NXE_FLAG, clean_AM_flag(), clean_IOPL_NT_flags(), config, config_t::cpu_active, cpu_setup_fpu(), cpuid(), cpu_info::cpuid_edx, exc_register(), INTEL_CPUID_STANDARD, INTEL_FXSAVE, INTEL_SSE2, panic, pm_init(), set_efer_flag(), tlb_shootdown_ipi(), and VECTOR_TLB_SHOOTDOWN_IPI.
Referenced by main_ap(), and main_bsp_separated_stack().
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void arch_pre_smp_init ( void )

Definition at line 159 of file amd64.c.
References acpi_init(), config, config_t::cpu_active, and memory_print_map().
Referenced by main_bsp_separated_stack().
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void arch_release_console ( void )

Return console to userspace
Definition at line 206 of file amd64.c.
References i8042_release().
Referenced by cmd_continue().
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void asm_delay_loop ( __u32 t )

Referenced by delay().

void asm_fake_loop ( __u32 t )

static void atomic_dec ( atomic_t * val ) [static]

Definition at line 51 of file atomic.h.
References atomic::count.
Referenced by _slab_free(), check_call_limit(), get_mag_from_cache(), ipc_wait_for_call(), kcpulb(), magazine_destroy(), magazine_obj_get(), slab_space_free(), and sys_ipc_wait_for_call().

static void atomic_inc ( atomic_t * val ) [static]

Definition at line 43 of file atomic.h.
References atomic::count.
Referenced by _ipc_call(), ipc_backsend_err(), magazine_obj_put(), put_mag_to_cache(), slab_alloc(), slab_space_alloc(), and thread_ready().

static void atomic_lock_arch ( atomic_t * val ) [static]

amd64 specific fast spinlock
Definition at line 100 of file atomic.h.
References atomic::count, and preemption_disable().
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static long atomic_postdec ( atomic_t * val ) [static]

Definition at line 71 of file atomic.h.
References atomic::count.

static long atomic_postinc ( atomic_t * val ) [static]

Definition at line 59 of file atomic.h.
References atomic::count.

void calibrate_delay_loop ( void )

Definition at line 175 of file amd64.c.
Referenced by main_ap(), and main_bsp_separated_stack().

static void clean_AM_flag ( void ) [static]

Disable alignment check
Clean AM(18) flag in CR0 register
Definition at line 85 of file amd64.c.
Referenced by arch_pre_mm_init().

static void clean_IOPL_NT_flags ( void ) [static]

Disable I/O on non-privileged levels
Clean IOPL(12,13) and NT(14) flags in EFLAGS register
Definition at line 66 of file amd64.c.
Referenced by arch_pre_mm_init().

void cpu_arch_init ( void )

Definition at line 124 of file cpu.c.
References CPU, NULL, and tss_p.

static void cpu_halt ( void ) [static]

Definition at line 61 of file asm.h.
Referenced by _getc(), and halt().

void cpu_identify ( void )

Definition at line 131 of file cpu.c.
References AMD_CPUID_EBX, AMD_CPUID_ECX, AMD_CPUID_EDX, CPU, cpuid(), has_cpuid(), info, INTEL_CPUID_EBX, INTEL_CPUID_ECX, INTEL_CPUID_EDX, VendorAMD, VendorIntel, and VendorUnknown.
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void cpu_print_report ( cpu_t * m )

Definition at line 160 of file cpu.c.
References cpu::arch, cpu_arch::family, cpu::frequency_mhz, cpu::id, cpu_arch::model, printf(), cpu_arch::stepping, cpu_arch::vendor, and vendor_str.
Referenced by cpu_list().
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void cpu_setup_fpu ( void )

Setup flags on processor so that we can use the FPU
cr0.osfxsr = 1 -> we do support fxstor/fxrestor cr0.em = 0 -> we do not emulate coprocessor cr0.mp = 1 -> we do want lazy context switch
Definition at line 77 of file cpu.c.
Referenced by arch_pre_mm_init().

static void cpu_sleep ( void ) [static]

Definition at line 60 of file asm.h.
Referenced by find_best_thread().

void cpuid ( __u32 cmd,

cpu_info_t * info

)

Referenced by arch_pre_mm_init(), and cpu_identify().

static void enable_l_apic_in_msr ( ) [static]

Enable local APIC
Enable local APIC in MSR.
Definition at line 176 of file asm.h.

void fpu_context_restore ( fpu_context_t * fctx )

Restore FPU (mmx,sse) context using fxrstor instruction
Definition at line 50 of file fpu_context.c.
Referenced by before_thread_runs().

void fpu_context_save ( fpu_context_t * fctx )

Save FPU (mmx, sse) context using fxsave instruction
Definition at line 41 of file fpu_context.c.
Referenced by scheduler().

void fpu_disable ( void )

Set the TS flag to 1.
If a thread accesses coprocessor, exception is run, which does a lazy fpu context switch.
Definition at line 100 of file cpu.c.
Referenced by before_thread_runs().

void fpu_enable ( void )

Definition at line 112 of file cpu.c.
Referenced by before_thread_runs().

void fpu_init ( void )

Definition at line 58 of file fpu_context.c.
Referenced by before_thread_runs().

void gdt_tss_setbase ( descriptor_t * d,

__address base

)

Definition at line 132 of file pm.c.
References tss_descriptor::base_0_15, tss_descriptor::base_16_23, tss_descriptor::base_24_31, and tss_descriptor::base_32_63.
Referenced by pm_init().

void gdt_tss_setlimit ( descriptor_t * d,

__u32 limit

)

Definition at line 142 of file pm.c.
References tss_descriptor::limit_0_15, and tss_descriptor::limit_16_19.
Referenced by io_perm_bitmap_install(), and pm_init().

static void gdtr_load ( struct ptr_16_64 * gdtr_reg ) [static]

Load GDTR register from memory.

Parameters:

gdtr_reg Address of memory from where to load GDTR.

Definition at line 214 of file asm.h.
Referenced by io_perm_bitmap_install(), and pm_init().

static void gdtr_store ( struct ptr_16_64 * gdtr_reg ) [static]

Store GDTR register to memory.

Parameters:

gdtr_reg Address of memory to where to load GDTR.

Definition at line 223 of file asm.h.
Referenced by io_perm_bitmap_install().

GEN_READ_REG ( dr7 )

GEN_READ_REG ( dr6 )

GEN_READ_REG ( dr3 )

GEN_READ_REG ( dr2 )

GEN_READ_REG ( dr1 )

GEN_READ_REG ( dr0 )

GEN_READ_REG ( cr3 )

GEN_READ_REG ( cr2 )

GEN_READ_REG ( cr0 )

GEN_WRITE_REG ( dr7 )

GEN_WRITE_REG ( dr6 )

GEN_WRITE_REG ( dr3 )

GEN_WRITE_REG ( dr2 )

GEN_WRITE_REG ( dr1 )

GEN_WRITE_REG ( dr0 )

GEN_WRITE_REG ( cr3 )

static __address* get_ip ( ) [static]

Definition at line 190 of file asm.h.

static __address get_stack_base ( void ) [static]

Return base address of current stack.
Return the base address of the current stack. The stack is assumed to be STACK_SIZE bytes long. The stack must start on page boundary.
Definition at line 51 of file asm.h.
References STACK_SIZE.

int has_cpuid ( void )

Referenced by cpu_identify().

void idt_init ( void )

Definition at line 168 of file pm.c.
References AR_INTERRUPT, exc_register(), gdtselector, idt, IDT_ITEMS, idt_setoffset(), interrupt_handler_size, interrupt_handlers(), KTEXT_DES, null_interrupt(), idescriptor::present, idescriptor::selector, idescriptor::type, and idescriptor::unused.
Referenced by pm_init().
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void idt_setoffset ( idescriptor_t * d,

__address offset

)

Definition at line 150 of file pm.c.
References idescriptor::offset_0_15, idescriptor::offset_16_31, and idescriptor::offset_32_63.
Referenced by idt_init().

static void idtr_load ( struct ptr_16_64 * idtr_reg ) [static]

Load IDTR register from memory.

Parameters:

idtr_reg Address of memory from where to load IDTR.

Definition at line 232 of file asm.h.
Referenced by pm_init().

static __u8 inb ( __u16 port ) [static]

Byte from port
Get byte from port

Parameters:

port Port to read from

Returns:
Value read

Definition at line 71 of file asm.h.
Referenced by code_execute().

void interrupt_handlers ( void )

Referenced by idt_init().

static ipl_t interrupts_disable ( void ) [static]

Disable interrupts.
Disable interrupts and return previous value of EFLAGS.

Returns:
Old interrupt priority level.

Definition at line 110 of file asm.h.

static ipl_t interrupts_enable ( void ) [static]

Enable interrupts.
Enable interrupts and return previous value of EFLAGS.

Returns:
Old interrupt priority level.

Definition at line 92 of file asm.h.

static ipl_t interrupts_read ( void ) [static]

Return interrupt priority level.
Return EFLAFS.

Returns:
Current interrupt priority level.

Definition at line 141 of file asm.h.

static void interrupts_restore ( ipl_t ipl ) [static]

Restore interrupt priority level.
Restore EFLAGS.

Parameters:

ipl Saved interrupt priority level.

Definition at line 127 of file asm.h.

static void invlpg ( __address addr ) [static]

Invalidate TLB Entry.

Parameters:

addr Address on a page whose TLB entry is to be invalidated.

Definition at line 205 of file asm.h.

static int memcmp ( const void * src,

const void * dst,

size_t cnt

) [static]

Compare memory regions for equality
Compare a given number of bytes (3rd argument) at memory locations defined by 1st and 2nd argument for equality. If bytes are equal function returns 0.

Parameters:

src Region 1

dst Region 2

cnt Number of bytes

Returns:
Zero if bytes are equal, non-zero otherwise

Definition at line 80 of file memstr.h.

static void* memcpy ( void * dst,

const void * src,

size_t cnt

) [static]

Copy memory
Copy a given number of bytes (3rd argument) from the memory location defined by 2nd argument to the memory location defined by 1st argument. The memory areas cannot overlap.

Parameters:

dst Destination

src Source

cnt Number of bytes

Returns:
Destination

Definition at line 50 of file memstr.h.
Referenced by _bubblesort(), _qsort(), clear_screen(), ptl0_create(), scroll_screen(), sys_ipc_answer(), sys_ipc_answer_fast(), thread_create(), and vsnprintf_write().

static void memsetb ( __address dst,

size_t cnt,

__u8 x

) [static]

Fill memory with bytes Fill a given number of bytes (2nd argument) at memory defined by 1st argument with the word value defined by 3rd argument.

Parameters:

dst Destination

cnt Number of bytes

x Value to fill

Definition at line 129 of file memstr.h.
Referenced by _ipc_call_init(), _slab_cache_create(), anon_page_fault(), as_area_create(), cpu_init(), hash_table_create(), make_magcache(), pt_mapping_insert(), pt_mapping_remove(), ptl0_create(), thread_create(), and tss_initialize().

static void memsetw ( __address dst,

size_t cnt,

__u16 x

) [static]

Fill memory with words Fill a given number of words (2nd argument) at memory defined by 1st argument with the word value defined by 3rd argument.

Parameters:

dst Destination

cnt Number of words

x Value to fill

Definition at line 107 of file memstr.h.

static void outb ( __u16 port,

__u8 val

) [static]

Byte to port
Output byte to port

Parameters:

port Port to write to

val Value to write

Definition at line 80 of file asm.h.
Referenced by code_execute().

void pm_init ( void )

Initialize segmentation - code/data/idt tables
Definition at line 195 of file pm.c.
References AR_TSS, AS_KERNEL, ptr_16_64::base, config, config_t::cpu_active, FRAME_ATOMIC, gdt_tss_setbase(), gdt_tss_setlimit(), gdtr, gdtr_load(), gdtselector, idt_init(), idtr, idtr_load(), malloc(), panic, PL_KERNEL, tr_load(), tss, TSS_BASIC_SIZE, TSS_DES, tss_initialize(), and tss_p.
Referenced by arch_pre_mm_init().
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__u64 rdtsc ( void )

__u64 read_efer_flag ( void )

static __native read_msr ( __u32 msr ) [static]

Definition at line 161 of file asm.h.

void set_efer_flag ( int flag )

Referenced by arch_pre_mm_init(), and syscall_setup_cpu().

static void swapgs ( void ) [static]

Swap Hidden part of GS register with visible one
Definition at line 83 of file asm.h.
Referenced by before_thread_runs_arch().

__native sys_tls_set ( __native addr )

Set thread-local-storage pointer
TLS pointer is set in FS register. Unfortunately the 64-bit part can be set only in CPL0 mode.
The specs say, that on fs:0 there is stored contents of fs register, we need not to go to CPL0 to read it.
Definition at line 189 of file amd64.c.
References AMD_MSR_FS, THREAD, and write_msr().
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void syscall_entry ( void )

Referenced by syscall_setup_cpu().

void syscall_setup_cpu ( void )

Enable & setup support for SYSCALL/SYSRET
Definition at line 48 of file syscall.c.
References AMD_MSR_LSTAR, AMD_MSR_SFMASK, AMD_MSR_STAR, AMD_SCE_FLAG, gdtselector, KDATA_DES, KTEXT_DES, PL_KERNEL, PL_USER, set_efer_flag(), syscall_entry(), and write_msr().
Referenced by arch_post_mm_init().
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static __u64 test_and_set ( atomic_t * val ) [static]

Definition at line 86 of file atomic.h.
References atomic::count.
Referenced by spinlock_trylock().

static void tr_load ( __u16 sel ) [static]

Load TR from descriptor table.

Parameters:

sel Selector specifying descriptor of TSS segment.

Definition at line 241 of file asm.h.
Referenced by io_perm_bitmap_install(), and pm_init().

void tss_initialize ( tss_t * t )

Definition at line 160 of file pm.c.
References memsetb().
Referenced by pm_init().
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void userspace ( uspace_arg_t * kernel_uarg )

Enter userspace
Change CPU protection level to 3, enter userspace.
Definition at line 48 of file userspace.c.
References gdtselector, interrupts_disable(), PL_USER, THREAD_STACK_SIZE, UDATA_DES, uspace_arg::uspace_entry, uspace_arg::uspace_stack, uspace_arg::uspace_uarg, and UTEXT_DES.
Referenced by uinit().
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void vesa_init ( void )

Referenced by arch_post_mm_init().

int vesa_present ( void )

Referenced by arch_post_mm_init().

static void write_msr ( __u32 msr,

__u64 value

) [static]

Write to MSR
Definition at line 152 of file asm.h.
Referenced by before_thread_runs_arch(), sys_tls_set(), and syscall_setup_cpu().

Variable Documentation

ptr_16_32_t bootstrap_gdtr

descriptor_t gdt[GDT_ITEMS]

Definition at line 56 of file pm.c.

descriptor_t gdt[]

Definition at line 56 of file pm.c.

ptr_16_64_t gdtr = {.limit = sizeof(gdt), .base= (__u64) gdt }

Definition at line 126 of file pm.c.
Referenced by pm_init().

ptr_16_64_t gdtr

Definition at line 126 of file pm.c.
Referenced by pm_init().

idescriptor_t idt[IDT_ITEMS]

Definition at line 124 of file pm.c.
Referenced by idt_init().

idescriptor_t idt[]

Definition at line 124 of file pm.c.
Referenced by idt_init().

ptr_16_64_t idtr = {.limit = sizeof(idt), .base= (__u64) idt }

Definition at line 127 of file pm.c.
Referenced by pm_init().

size_t interrupt_handler_size

Referenced by idt_init().

struct tss packed

struct ptr_16_32 packed

struct ptr_16_64 packed

struct idescriptor packed

struct tss_descriptor packed

struct descriptor packed

struct cpu_info packed

struct context packed

ptr_16_32_t protected_ap_gdtr

tss_t tss [static]

Definition at line 129 of file pm.c.
Referenced by pm_init().

tss_t* tss_p = NULL

Definition at line 130 of file pm.c.
Referenced by cpu_arch_init(), and pm_init().

tss_t* tss_p

Definition at line 130 of file pm.c.
Referenced by cpu_arch_init(), and pm_init().

char* vendor_str[] [static]

Initial value:
{ "Unknown Vendor", "AuthenticAMD", "GenuineIntel" }

Definition at line 64 of file cpu.c.
Referenced by cpu_print_report().

Generated on Sun Jun 18 16:38:18 2006 for HelenOS Kernel (amd64) by

1.4.6

amd64 [Miscellanea]

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