Fast System Call

Currently it only for kernel developing
See : http://meos.sysbin.com/viewtopic.php?t=662

git-svn-id: svn://kolibrios.org@375 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Iliya Mihailov (Ghost) 2007-02-25 14:20:50 +00:00
parent 72fe949f6f
commit b07dfce332
7 changed files with 695 additions and 26 deletions

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@ -39,9 +39,11 @@ gdts:
dd gdts dd gdts
dw 0 dw 0
; Attention! The order first four selectors not to change, is used in Fast System Call
; must be : os_code, os_data, app_code, app_data, ....
int_code_l: int_code_l:
os_code_l: os_code_l:
dw 0xffff dw 0xffff
dw 0x0000 dw 0x0000
db 0x00 db 0x00
@ -50,13 +52,26 @@ os_code_l:
int_data_l: int_data_l:
os_data_l: os_data_l:
dw 0xffff dw 0xffff
dw 0x0000 dw 0x0000
db 0x00 db 0x00
dw 11011111b *256 +10010010b dw 11011111b *256 +10010010b
db 0x00 db 0x00
app_code_l:
dw 0xFFFF;((0x80000000-std_application_base_address) shr 12) and 0xffff
dw 0
db 0x40
db cpl3
dw G32+D32+0x6000+0x7;
app_data_l:
dw 0xFFFF;(0x80000000-std_application_base_address) shr 12 and 0xffff
dw 0
db 0x40
db drw3
dw G32+D32+0x6000+0x7;
; --------------- APM --------------------- ; --------------- APM ---------------------
apm_code_32: apm_code_32:
dw 0x0f ; limit 64kb dw 0x0f ; limit 64kb
@ -75,20 +90,6 @@ apm_data_16:
db 0x00 db 0x00
; ----------------------------------------- ; -----------------------------------------
app_code_l:
dw 0xFFFF;((0x80000000-std_application_base_address) shr 12) and 0xffff
dw 0
db 0x40
db cpl3
dw G32+D32+0x6000+0x7;
app_data_l:
dw 0xFFFF;(0x80000000-std_application_base_address) shr 12 and 0xffff
dw 0
db 0x40
db drw3
dw G32+D32+0x6000+0x7;
graph_data_l: graph_data_l:
dw 0x7ff dw 0x7ff

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@ -85,6 +85,12 @@ CAPS_CMP_LEG equ 72 ;
CAPS_SVM equ 73 ;secure virual machine CAPS_SVM equ 73 ;secure virual machine
CAPS_ALTMOVCR8 equ 74 ; CAPS_ALTMOVCR8 equ 74 ;
; CPU MSR names
MSR_SYSENTER_CS equ 0x174
MSR_SYSENTER_ESP equ 0x175
MSR_SYSENTER_EIP equ 0x176
MSR_AMD_EFER equ 0xC0000080 ; Extended Feature Enable Register
MSR_AMD_STAR equ 0xC0000081 ; SYSCALL/SYSRET Target Address Register
CR0_PE equ 0x00000001 ;protected mode CR0_PE equ 0x00000001 ;protected mode
CR0_MP equ 0x00000002 ;monitor fpu CR0_MP equ 0x00000002 ;monitor fpu
@ -246,6 +252,8 @@ twdw equ (CURRENT_TASK-window_data)
std_application_base_address equ new_app_base std_application_base_address equ new_app_base
RING0_STACK_SIZE equ 0x2000 - 512 ;512 áàéò äëÿ êîíòåêñòà FPU
PAGES_USED equ 4 PAGES_USED equ 4
PG_UNMAP equ 0x000 PG_UNMAP equ 0x000

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@ -35,6 +35,101 @@ i40:
iretd iretd
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; SYSENTER ENTRY ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
uglobal
times 100 db ?
sysenter_stack:
endg
align 32
SYSENTER_VAR equ 0
sysenter_entry:
; Íàñòðàèâàåì ñòåê
cli
push eax
mov eax, [ss:CURRENT_TASK]
shl eax, 8
mov eax, [ss:PROC_BASE + eax + APPDATA.pl0_stack]
lea esp, [ss:eax + RING0_STACK_SIZE] ; configure ESP
mov eax, [ss:sysenter_stack - 4] ; eax - original eax, from app
sti
;------------------
push ds es
pushad
cld
mov ax, word os_data
mov ds, ax
mov es, ax
mov eax, ebx
mov ebx, ecx
mov ecx, edx
mov edx, esi
mov esi, edi
mov edi, [esp + 28]
push eax
and edi, 0xff
call dword [servetable + edi * 4]
pop eax
popad
pop es ds
;------------------
mov edx, [SYSENTER_VAR] ; eip
mov ecx, [SYSENTER_VAR + 4] ; esp
sysexit
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; SYSCALL ENTRY ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
align 32
syscall_entry:
cli
xchg ecx, [esp]
mov [SYSENTER_VAR + 4], esp
mov [ss:sysenter_stack - 4], eax
mov eax, [ss:CURRENT_TASK]
shl eax, 8
mov eax, [ss:PROC_BASE + eax + APPDATA.pl0_stack]
lea esp, [ss:eax + RING0_STACK_SIZE] ; configure ESP
mov eax, [ss:sysenter_stack - 4] ; eax - original eax, from app
sti
;------------------
push ds es
pushad
cld
mov ax, word os_data
mov ds, ax
mov es, ax
mov eax, ebx
mov ebx, ecx
mov ecx, edx
mov edx, esi
mov esi, edi
mov edi, [esp + 28]
push eax
and edi, 0xff
call dword [servetable + edi * 4]
pop eax
popad
pop es ds
;------------------
mov esp, [SYSENTER_VAR + 4]
xchg ecx, [esp]
sysret
iglobal iglobal
;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; SYSTEM FUNCTIONS TABLE ;; ;; SYSTEM FUNCTIONS TABLE ;;
@ -62,7 +157,7 @@ iglobal
dd sys_cachetodiskette ; 16-FlushFloppyCache dd sys_cachetodiskette ; 16-FlushFloppyCache
dd sys_getbutton ; 17-GetButton dd sys_getbutton ; 17-GetButton
dd sys_system ; 18-System Services dd sys_system ; 18-System Services
dd undefined_syscall ; 19-reserved dd paleholder;undefined_syscall ; 19-reserved
dd sys_midi ; 20-ResetMidi and OutputMidi dd sys_midi ; 20-ResetMidi and OutputMidi
dd sys_setup ; 21-SetMidiBase,SetKeymap,SetShiftKeymap,. dd sys_setup ; 21-SetMidiBase,SetKeymap,SetShiftKeymap,.
dd sys_settime ; 22-setting date,time,clock and alarm-clock dd sys_settime ; 22-setting date,time,clock and alarm-clock

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@ -166,10 +166,10 @@ end if
use32 use32
include 'unpacker.inc' include 'unpacker.inc'
__DEBUG__ fix 1 __DEBUG__ fix 1
__DEBUG_LEVEL__ fix 1 __DEBUG_LEVEL__ fix 1
include 'debug-fdo.inc' include 'debug-fdo.inc'
iglobal iglobal
boot_memdetect db 'Determining amount of memory',0 boot_memdetect db 'Determining amount of memory',0
@ -370,6 +370,49 @@ B32:
; btr [cpu_caps], CAPS_PGE ;test: don't use global pages ; btr [cpu_caps], CAPS_PGE ;test: don't use global pages
; btr [cpu_caps], CAPS_MTRR ;test: don't use MTRR ; btr [cpu_caps], CAPS_MTRR ;test: don't use MTRR
bts [cpu_caps], CAPS_TSC ;force use rdtsc bts [cpu_caps], CAPS_TSC ;force use rdtsc
; -------- Fast System Call init ----------
; Intel SYSENTER/SYSEXIT (AMD CPU support it too)
bt [cpu_caps], CAPS_SEP
jnc .SEnP ; SysEnter not Present
xor edx, edx
mov ecx, MSR_SYSENTER_CS
mov eax, os_code
wrmsr
mov ecx, MSR_SYSENTER_ESP
mov eax, sysenter_stack ; Check it
wrmsr
mov ecx, MSR_SYSENTER_EIP
mov eax, sysenter_entry
wrmsr
.SEnP:
; AMD SYSCALL/SYSRET
cmp byte[cpu_vendor], 'A'
jne .noSYSCALL
mov eax, 0x80000001
cpuid
test edx, 0x800 ; bit_11 - SYSCALL/SYSRET support
jz .noSYSCALL
mov ecx, MSR_AMD_EFER
rdmsr
or eax, 1 ; bit_0 - System Call Extension (SCE)
wrmsr
; !!!! It`s dirty hack, fix it !!!
; Bits of EDX :
; Bit 3116 During the SYSRET instruction, this field is copied into the CS register
; and the contents of this field, plus 8, are copied into the SS register.
; Bit 150 During the SYSCALL instruction, this field is copied into the CS register
; and the contents of this field, plus 8, are copied into the SS register.
; mov edx, (os_code + 16) * 65536 + os_code
mov edx, 0x1B0013
mov eax, syscall_entry
mov ecx, MSR_AMD_STAR
wrmsr
.noSYSCALL:
; -----------------------------------------
; MEMORY MODEL ; MEMORY MODEL
call mem_test call mem_test
@ -4826,7 +4869,9 @@ read_from_hd: ; Read from hd - fn not in use
ret ret
align 4
paleholder:
ret
; --------------- APM --------------------- ; --------------- APM ---------------------
apm_entry dp 0 apm_entry dp 0
apm_vf dd 0 apm_vf dd 0
@ -5019,10 +5064,10 @@ iglobal
syslang dd 0x1 syslang dd 0x1
endg endg
if __DEBUG__ eq 1 if __DEBUG__ eq 1
include_debug_strings include_debug_strings
end if end if
IncludeIGlobals IncludeIGlobals
endofcode: endofcode:
IncludeUGlobals IncludeUGlobals

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@ -0,0 +1,266 @@
; new application structure
macro meos_app_start
{
use32
org 0x0
db 'MENUET01'
dd 0x01
dd __start
dd __end
dd __memory
dd __stack
if used __params & ~defined __params
dd __params
else
dd 0x0
end if
dd 0x0
}
MEOS_APP_START fix meos_app_start
macro code
{
__start:
}
CODE fix code
macro data
{
__data:
}
DATA fix data
macro udata
{
if used __params & ~defined __params
__params:
db 0
__end:
rb 255
else
__end:
end if
__udata:
}
UDATA fix udata
macro meos_app_end
{
align 32
rb 2048
__stack:
__memory:
}
MEOS_APP_END fix meos_app_end
; macro for defining multiline text data
struc mstr [sstring]
{
forward
local ssize
virtual at 0
db sstring
ssize = $
end virtual
dd ssize
db sstring
common
dd -1
}
; strings
macro sz name,[data] { ; from MFAR [mike.dld]
common
if used name
label name
end if
forward
if used name
db data
end if
common
if used name
.size = $-name
end if
}
macro lsz name,[lng,data] { ; from MFAR [mike.dld]
common
if used name
label name
end if
forward
if (used name)&(lang eq lng)
db data
end if
common
if used name
.size = $-name
end if
}
; easy system call macro
macro mpack dest, hsrc, lsrc
{
if (hsrc eqtype 0) & (lsrc eqtype 0)
mov dest, (hsrc) shl 16 + lsrc
else
if (hsrc eqtype 0) & (~lsrc eqtype 0)
mov dest, (hsrc) shl 16
add dest, lsrc
else
mov dest, hsrc
shl dest, 16
add dest, lsrc
end if
end if
}
macro __mov reg,a { ; mike.dld
if ~a eq
mov reg,a
end if
}
macro mcall a,b,c,d,e,f { ; mike.dld
__mov eax,a
__mov ebx,b
__mov ecx,c
__mov edx,d
__mov esi,e
__mov edi,f
int 0x40
}
; language for programs
lang fix ru ; ru en fr ge fi
; optimize the code for size
__regs fix <eax,ebx,ecx,edx,esi,edi,ebp,esp>
macro add arg1,arg2
{
if (arg2 eqtype 0)
if (arg2) = 1
inc arg1
else
add arg1,arg2
end if
else
add arg1,arg2
end if
}
macro sub arg1,arg2
{
if (arg2 eqtype 0)
if (arg2) = 1
dec arg1
else
sub arg1,arg2
end if
else
sub arg1,arg2
end if
}
macro mov arg1,arg2
{
if (arg1 in __regs) & (arg2 eqtype 0)
if (arg2) = 0
xor arg1,arg1
else if (arg2) = 1
xor arg1,arg1
inc arg1
else if (arg2) = -1
or arg1,-1
else if (arg2) > -128 & (arg2) < 128
push arg2
pop arg1
else
mov arg1,arg2
end if
else
mov arg1,arg2
end if
}
macro struct name
{
virtual at 0
name name
sizeof.#name = $ - name
end virtual
}
; structures used in MeOS
struc process_information
{
.cpu_usage dd ? ; +0
.window_stack_position dw ? ; +4
.window_stack_value dw ? ; +6
.not_used1 dw ? ; +8
.process_name rb 12 ; +10
.memory_start dd ? ; +22
.used_memory dd ? ; +26
.PID dd ? ; +30
.x_start dd ? ; +34
.y_start dd ? ; +38
.x_size dd ? ; +42
.y_size dd ? ; +46
.slot_state dw ? ; +50
rb (1024-52)
}
struct process_information
struc system_colors
{
.frame dd ?
.grab dd ?
.grab_button dd ?
.grab_button_text dd ?
.grab_text dd ?
.work dd ?
.work_button dd ?
.work_button_text dd ?
.work_text dd ?
.work_graph dd ?
}
struct system_colors
; constants
; events
EV_IDLE = 0
EV_TIMER = 0
EV_REDRAW = 1
EV_KEY = 2
EV_BUTTON = 3
EV_EXIT = 4
EV_BACKGROUND = 5
EV_MOUSE = 6
EV_IPC = 7
EV_STACK = 8
; event mask bits for function 40
EVM_REDRAW = 1b
EVM_KEY = 10b
EVM_BUTTON = 100b
EVM_EXIT = 1000b
EVM_BACKGROUND = 10000b
EVM_MOUSE = 100000b
EVM_IPC = 1000000b
EVM_STACK = 10000000b

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@ -0,0 +1,131 @@
macro debug_print str
{
local ..string, ..label
jmp ..label
..string db str,0
..label:
pushf
pushad
mov edx,..string
call debug_outstr
popad
popf
}
dps fix debug_print
macro debug_print_dec arg
{
pushf
pushad
if ~arg eq eax
mov eax,arg
end if
call debug_outdec
popad
popf
}
dpd fix debug_print_dec
;---------------------------------
debug_outdec: ;(eax - num, edi-str)
push 10 ;2
pop ecx ;1
push -'0' ;2
.l0:
xor edx,edx ;2
div ecx ;2
push edx ;1
test eax,eax ;2
jnz .l0 ;2
.l1:
pop eax ;1
add al,'0' ;2
call debug_outchar ; stosb
jnz .l1 ;2
ret ;1
;---------------------------------
debug_outchar: ; al - char
pushf
pushad
mov cl,al
mov eax,63
mov ebx,1
int 0x40
popad
popf
ret
debug_outstr:
mov eax,63
mov ebx,1
@@:
mov cl,[edx]
test cl,cl
jz @f
int 40h
inc edx
jmp @b
@@:
ret
macro newline
{
dps <13,10>
}
macro print message
{
dps message
newline
}
macro pregs
{
dps "EAX: "
dpd eax
dps " EBX: "
dpd ebx
newline
dps "ECX: "
dpd ecx
dps " EDX: "
dpd edx
newline
}
macro debug_print_hex arg
{
pushf
pushad
if ~arg eq eax
mov eax, arg
end if
call debug_outhex
popad
popf
}
dph fix debug_print_hex
debug_outhex:
; eax - number
mov edx, 8
.new_char:
rol eax, 4
movzx ecx, al
and cl, 0x0f
mov cl, [__hexdigits + ecx]
pushad
mcall 63, 1
popad
dec edx
jnz .new_char
ret
__hexdigits:
db '0123456789ABCDEF'

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@ -0,0 +1,123 @@
;
; Kolibri Fast Calls test
;
; Compile with FASM for Kolibri
;
;
SYSENTER_VAR equ 0
use32
org 0x0
db 'MENUET01'
dd 0x01
dd START
dd I_END
dd 0x1000
dd 0x1000
dd 0x0, 0x0
include 'macros.inc'
include 'debug.inc'
START:
mov eax, 19 ; ôóíêöèÿ ïóñòûøêà
push ecx
syscall
pop ecx
print '! Alive !'
xor eax, eax
cpuid
rdtsc
mov [old_tsc], eax
mov [old_tsc + 4], edx
; ÷åðåç áûñòðûé âûçîâ
test1: mov ebx, 0x100000
mov dword[SYSENTER_VAR], .ret_p
mov [SYSENTER_VAR + 4], esp
align 32
.nxt: mov eax, 19 ; ôóíêöèÿ ïóñòûøêà
sysenter ; ïîðòÿòñÿ ecx, edx
.ret_p: dec ebx
jnz .nxt
xor eax, eax
cpuid
rdtsc
cmp eax, [old_tsc]
jnb @f
dec edx
@@: sub eax, [old_tsc]
sub edx, [old_tsc + 4]
debug_print_hex edx
debug_print_hex eax
print ' <- Fast call'
xor eax, eax
cpuid
rdtsc
mov [old_tsc], eax
mov [old_tsc + 4], edx
; ÷åðåç øëþç ïðåðûâàíèÿ
test2: mov ebx, 0x100000
align 32
.nxt: mov eax, 19 ; ôóíêöèÿ ïóñòûøêà
int 0x40
dec ebx
jnz .nxt
xor eax, eax
cpuid
rdtsc
cmp eax, [old_tsc]
jnb @f
dec edx
@@: sub eax, [old_tsc]
sub edx, [old_tsc + 4]
debug_print_hex edx
debug_print_hex eax
print ' <- Interrupt'
call show_alive
mov eax, -1
int 0x40
;---------------------------------------------
show_alive:
; ÷åðåç áûñòðûé âûçîâ, íàñòðàèâàåì ðåãèñòðû äëÿ âîçâðàòà
mov eax, 63
mov ebx, 1
mov esi, msg_Ok
.nxt: mov cl, [esi]
test cl, cl
jz .end
mov dword[SYSENTER_VAR], .ret_p
mov [SYSENTER_VAR + 4], esp
sysenter ; ïîðòÿòñÿ ecx, edx
.ret_p: inc esi
jmp .nxt
.end: ret
; ÷åðåç øëþç ïðåðûâàíèÿ
; mov eax, 63
; mov ebx, 1
; mov esi, msg_Ok
; @@: mov cl, [esi]
; test cl, cl
; jz @f
; int 0x40
; inc esi
; jmp @b
; @@: ret
old_tsc: dd 0, 0
msg_Ok db 'Alive!', 10, 13, 0
I_END: