📄 ntldr内存初始化、分配、操作及相关函数分析.mht
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<DIV class=3Dtext>
<DIV class=3Dgray>2006-07-26</DIV>
<H3>ntldr=C4=DA=B4=E6=B3=F5=CA=BC=BB=AF=A1=A2=B7=D6=C5=E4=A1=A2=B2=D9=D7=F7=
=BC=B0=CF=E0=B9=D8=BA=AF=CA=FD=B7=D6=CE=F6 1 </H3>
<TABLE class=3Dblog-content>
<TBODY>
<TR>
<TD>
<P>=C7=B0=D1=D4=A3=BA<SPAN style=3D"DISPLAY: none"> s%Y;=07BfEnl=20
=
</SPAN> <BR>=B4=CB=C6=AA=CA=C7=B7=D6=CE=F6=B5=BD=BA=F3=C0=B4=B2=C5=D0=
=B4=B5=C4=A3=AC=BF=AA=CA=BC=B7=D6=CE=F6=CA=B1=B6=D4=C4=DA=B4=E6=B5=C4=B2=D9=
=D7=F7=BB=B9=BF=C9=D2=D4=C0=ED=BD=E2=A3=AC=BF=C9=CA=C7=D4=BD=CA=C7=B5=BD=BA=
=F3=B1=DF=D4=BD=CA=C7=D4=D3=C2=D2=A3=AC=CB=F9=D2=D4=B8=C9=B4=E0=BD=AB=C6=E4=
=D5=FB=C0=ED=B3=F6=C0=B4=B5=A5=B6=C0=B5=C4=D7=F6=CE=AA=D2=BB=C6=AA=A1=A3=CE=
=AA=C1=CB=C8=C3=C4=E3=BF=B4=B5=C4=B8=FC=C3=F7=B0=D7=D2=BB=D0=A9=A3=AC=CE=D2=
=BD=AB=D6=D8=B5=E3=B2=BF=B7=D6=BB=AD=C1=CB=BC=B8=D5=C5=C1=B4=B1=ED=CD=BC=A3=
=AC=C1=B4=B1=ED=CD=BC=CA=FD=BE=DD=D1=D5=C9=AB=B5=C4=CB=B5=C3=F7=C8=E7=CF=C2=
=A3=BA<SPAN=20
style=3D"DISPLAY: none"> 3348<=1B-=1Bvz </SPAN> <BR> =
=20
=
=C9=EE=BA=EC=A3=BA=B4=FA=B1=ED=B8=C3=CA=FD=BE=DD=B8=D5=B8=D5=B1=BB=B4=
=B4=BD=A8=BA=C3=A3=BB<SPAN style=3D"DISPLAY: none"> =18t]=1F=07Y Y%/=20
</SPAN> <BR> =
=C9=EE=BB=C6=A3=BA=B4=FA=B1=ED=B8=C3=CA=FD=BE=DD=B1=BB=B8=C4=B6=AF=B9=
=FD=A3=BB<SPAN=20
style=3D"DISPLAY: none"> 8_[q=02#]i6 </SPAN> <BR> =
=20
=C2=CC=C9=AB=A3=BA=B4=FA=B1=ED=D7=A2=BD=E2=A3=BB<SPAN =
style=3D"DISPLAY: none"> 0=14iF=15=3D`W=10B=20
</SPAN> <BR> =
=C0=B6=C9=AB=A3=BA=B4=FA=B1=ED=B8=C3=B4=A6=D0=E8=D2=AA=D7=A2=D2=E2=D2=
=BB=CF=C2=A3=BB=A3=A8=B5=B1=C8=BB=B2=BB=B0=FC=C0=A8=B4=FA=C2=EB=D6=D0=B5=C4=
=C0=B6=C9=AB=A3=A9=A1=A3<SPAN=20
style=3D"DISPLAY: none"> =1ARZ+ ~=1CI </SPAN> <BR><SPAN=20
style=3D"DISPLAY: none">40;;cUL%>c =
</SPAN> <BR>=B5=DA=D2=BB=B2=BF=B7=D6=D6=D0=C4=DA=B4=E6=B2=D9=D7=F7=B5=
=C4=CF=E0=B9=D8=B4=FA=C2=EB=A3=BA<SPAN=20
style=3D"DISPLAY: none"> =13K+=10{/bL=11 </SPAN> <BR><SPAN=20
style=3D"DISPLAY: none">G=15(]1d;V<=0F </SPAN> <BR><SPAN=20
style=3D"DISPLAY: none">>=15d.n6u"hE </SPAN> <BR>extern=20
MEMORY_LIST_ENTRY _far *MemoryDescriptorList;<SPAN =
style=3D"DISPLAY: none">=20
7=07L=14 a=0E=04^1 </SPAN> <BR>// typedef struct =
_MEMORY_LIST_ENTRY {<SPAN=20
style=3D"DISPLAY: none"> =19]A=13#=17#u=17 </SPAN> <BR>// =
ULONG=20
BlockBase;<SPAN style=3D"DISPLAY: none"> tV=15wcZ=14_}! =
</SPAN> <BR>//=20
ULONG BlockSize;<SPAN style=3D"DISPLAY: none"> =
=13=103%=05=14=3Db9,=20
</SPAN> <BR>// } MEMORY_LIST_ENTRY, *PMEMORY_LIST_ENTRY;<SPAN =
style=3D"DISPLAY: none"> AY=08=10=16=10=1A8 h </SPAN> <BR>//=20
=
=D7=A2=D2=E2=A3=AC=B8=C3=BD=E1=B9=B9=D6=D0=B2=A2=C3=BB=D3=D0=CF=F3=C6=D5=CD=
=A8=C1=B4=B1=ED=D2=BB=D1=F9=B5=C4=C1=B4=B1=ED=D6=B8=D5=EB=A3=ACMemoryDesc=
riptorList=CA=C7=CD=A8=B9=FD=B6=AF=CC=AC=CA=FD=D7=E9=C0=B4=CA=B5=CF=D6=C1=
=B4=B1=ED=B5=C4=A1=A3<SPAN=20
style=3D"DISPLAY: none"> C=12=16=10oJ$17% </SPAN> <BR><SPAN=20
style=3D"DISPLAY: none">]]=08}#.}oIO=20
=
</SPAN> <BR>ConstructMemoryDescriptors=A3=A8=A3=A9=BA=AF=CA=FD=B7=D6=
=CE=F6=A3=BA<SPAN=20
style=3D"DISPLAY: none"> 1k@e=01?l=06pL =
</SPAN> <BR>BOOLEAN<SPAN=20
style=3D"DISPLAY: none"> d=12Cr=05=08f=02 0=20
</SPAN> <BR>ConstructMemoryDescriptors (<SPAN =
style=3D"DISPLAY: none">=20
=15>:j "u"=1C </SPAN> <BR> VOID<SPAN =
style=3D"DISPLAY: none"> _ c-=20
[DF>K </SPAN> <BR> )<SPAN style=3D"DISPLAY: none"> =
z//=10Sz=074|Q=20
</SPAN> <BR>/*++<SPAN style=3D"DISPLAY: none"> =15=1D=15=13 =
=06)X=12C=20
</SPAN> <BR><SPAN style=3D"DISPLAY: none">W.=19=03nH3=05'x=20
</SPAN> <BR>Routine Description:<SPAN style=3D"DISPLAY: =
none"> F,.L=20
Vv1UB </SPAN> <BR><SPAN style=3D"DISPLAY: =
none">PL61=025lS=1BE=20
</SPAN> <BR>Arguments:<SPAN style=3D"DISPLAY: none"> =
=03/F/Y=1F^6<=20
</SPAN> <BR><SPAN style=3D"DISPLAY: none">)C=19IKb=1A+q;=20
</SPAN> <BR><SPAN style=3D"DISPLAY: none">lJO6!=0EHI.=14=20
</SPAN> <BR>Return Value:<SPAN style=3D"DISPLAY: none"> =
1V=16s98pP=04o=20
</SPAN> <BR><SPAN style=3D"DISPLAY: none">7PPr=17=15r=1C[=07=20
</SPAN> <BR><SPAN style=3D"DISPLAY: none">?!!<6(?^=14=20
</SPAN> <BR>--*/<SPAN style=3D"DISPLAY: none"> =
5S=1B\oN=3D'=3D=20
</SPAN> <BR>{<SPAN style=3D"DISPLAY: none"> =
q;t=13=15\_=07Z=07=20
</SPAN> <BR> ULONG BAddr, EAddr,=20
round;<SPAN style=3D"DISPLAY: none"> [t,=11=17w6.e% =
</SPAN> <BR> =20
E820Frame Frame;<SPAN style=3D"DISPLAY: none"> =
=3D=11iQg=08=1A!7=07=20
</SPAN> <BR><SPAN style=3D"DISPLAY: none">- A>"nMm2=20
</SPAN> <BR> //<SPAN style=3D"DISPLAY: none"> A'/ =
!7VK'e=20
</SPAN> <BR> // Initialize the first entry in the list =
to zero=20
(end-of-list)<SPAN style=3D"DISPLAY: none"> 4Qb=12ofKfY=20
</SPAN> <BR> //<SPAN style=3D"DISPLAY: none"> K{r =
K@nuoK=20
</SPAN> <BR><SPAN style=3D"DISPLAY: none">^(QbkB3[j=20
</SPAN> <BR> MemoryDescriptorList->BlockSize =3D =
0;<SPAN=20
style=3D"DISPLAY: none"> ;=17 4{=1CB/:=1F </SPAN> <BR> =20
MemoryDescriptorList->BlockBase =3D 0;<SPAN style=3D"DISPLAY: =
none">=20
%Zr\<9=14\a, </SPAN> <BR><SPAN style=3D"DISPLAY: =
none">t3f@ =12=1DS%)=20
</SPAN> <BR> //=20
=
=B5=F7=D3=C3Init15E820()=BA=AF=CA=FD=A3=AC=B4=CB=CA=B1=D6=BB=CA=C7=CE=AA=C1=
=CB=B2=E2=CA=D4=B5=F7=D3=C3=B8=C3=BA=AF=CA=FD=CA=C7=B7=F1=B3=C9=B9=A6<SPA=
N style=3D"DISPLAY: none"> =0F=20
t=1A&IDG/| </SPAN> <BR><SPAN style=3D"DISPLAY: =
none">=1ET=08;s*nS=16=13=20
</SPAN> <BR> Frame.Key =3D 0;<SPAN style=3D"DISPLAY: =
none">=20
(AX/t]b^&=18 </SPAN> <BR> Frame.Size =3D sizeof=20
(Frame.Descriptor);<SPAN style=3D"DISPLAY: none"> =01-8=19i9=15n 5 =
</SPAN> <BR> Int15E820 (&Frame);<SPAN=20
style=3D"DISPLAY: none"> g=0E~G(*0=12|H </SPAN> <BR> if =
(Frame.ErrorFlag || Frame.Size < sizeof (Frame.Descriptor)) =
{<SPAN=20
style=3D"DISPLAY: none"> {9Z8D6wf=0E=1B </SPAN> <BR> =
return=20
FALSE;<SPAN style=3D"DISPLAY: none"> ?0,=15K"@5=1Ab =
</SPAN> <BR> =20
}<SPAN style=3D"DISPLAY: none"> &V2+~K`pV=05 =
</SPAN> <BR><SPAN=20
style=3D"DISPLAY: none">)-[7jv|zx: </SPAN> <BR> //<SPAN =
style=3D"DISPLAY: none"> vCC"bPt.0c </SPAN> <BR> //=20
=
=D5=E2=C0=EF=B2=C5=CA=C7=D5=E6=D5=FD=B5=C4=BB=F1=C8=A1=C4=DA=B4=E6=BF=E9<=
SPAN style=3D"DISPLAY: none"> r }[0c=02=1D=190=20
</SPAN> <BR> //<SPAN style=3D"DISPLAY: none"> =
wXk=02=10D=078=18z=20
</SPAN> <BR><SPAN style=3D"DISPLAY: none">N_O7u `=02-k=20
</SPAN> <BR> Frame.Key =3D 0;<SPAN style=3D"DISPLAY: =
none"> bA=20
@>=03HG`_ </SPAN> <BR> do {<SPAN style=3D"DISPLAY: =
none"> h_=20
"#=10[@=03] </SPAN> <BR> Frame.Size =3D sizeof=20
(Frame.Descriptor);<SPAN style=3D"DISPLAY: none"> a](r`=15 Cld=20
</SPAN> <BR> <SPAN=20
style=3D"DISPLAY: none"> :0>.R=05=0E=13a` =
</SPAN> <BR> =20
// [=BC=D9=B6=A8=BA=CD=CF=DE=D6=C6 ]<SPAN =
style=3D"DISPLAY: none"> wEnyS4})+=0E=20
</SPAN> <BR>// =
BIOS=B7=B5=BB=D8=C4=C7=D0=A9=C3=E8=CA=F6=B4=F3=BF=E9=C4=DA=B4=E6=B5=C4=B5=
=D8=D6=B7=B7=B6=CE=A7,=CB=E6=BA=F3=CA=C7ISA/PCI=C4=DA=B4=E6; <SPAN=20
style=3D"DISPLAY: none">3G^)=07~=16aE{ </SPAN> <BR>//=20
=
BIOS=B2=BB=B7=B5=BB=D8=B1=BB=D3=C3=D7=F7PCI=C9=E8=B1=B8,ISA=BF=C9=D1=A1RO=
M,=D2=D4=BC=B0ISA =
plus&play=BF=A8=B5=C4=C4=DA=B4=E6=D3=B3=CF=F3,=D5=E2=CA=C7=D2=F2=CE=AA=
OS=D3=D0=CF=E0=D3=A6=B5=C4// =
=BB=FA=D6=C6=BF=C9=D2=D4=BC=EC=B2=E2=B5=BD=CB=FC=C3=C7;=20
<SPAN style=3D"DISPLAY: none">=1Fyre%=1F"'b </SPAN> <BR>//=20
=
BIOS=B7=B5=BB=D8=D0=BE=C6=AC=B6=A8=D2=E5=B5=C4=B5=D8=D6=B7=BF=D5=B6=B4,=D5=
=E2=D0=A9=B5=D8=D6=B7=D7=F7=CE=AA=B1=A3=C1=F4=B2=BB=BB=E1=B1=BB=C9=E8=B1=B8=
=CA=B9=D3=C3; <SPAN style=3D"DISPLAY: none">Y<J-."kd=19=1E=20
</SPAN> <BR>// =
=B1=BB=B6=A8=D2=E5=B5=C4=B4=F3=BF=E9=C4=DA=B4=E6=B1=BB=D3=B3=C9=E4=B5=BDI=
O=C9=E8=B1=B8=B5=C4=B5=D8=D6=B7=B7=B6=CE=A7=D7=F7=CE=AA=B1=A3=C1=F4=B5=D8=
=D6=B7=BD=AB=BB=E1=B1=BB=B7=B5=BB=D8; <SPAN=20
style=3D"DISPLAY: none">@c3)dhq_C </SPAN> <BR>//=20
=
=CF=B5=CD=B3BIOS=B5=C4=CB=F9=D3=D0=CA=C2=BC=FE=BD=AB=BB=E1=B1=BB=D7=F7=CE=
=AA=B1=A3=C1=F4=C4=DA=B4=E6=B7=B5=BB=D8,=D5=E2=B0=FC=C0=A8=B5=CD=D3=DA1M=B5=
=C4=C4=DA=B4=E6,=D4=DA16M(=C8=E7=B9=FB=B4=E6=D4=DA)<SPAN =
style=3D"DISPLAY: none">=20
oy~7=047=187T- </SPAN> <BR>// =
=B4=A6=B5=C4=C4=DA=B4=E6,=D2=D4=BC=B0=D4=DA=B5=D8=D6=B7=BF=D5=BC=E4(4G)=BD=
=E1=CE=B2=B4=A6=B5=C4=C4=DA=B4=E6. <SPAN=20
style=3D"DISPLAY: none">{huvjoGlU, </SPAN> <BR>//=20
=
=B1=EA=D7=BC=B5=C4PC=B5=D8=D6=B7=B7=B6=CE=A7=B2=BB=BB=E1=B1=BB=B1=A8=B8=E6=
,=C0=FD=C8=E7=D4=DA=B5=D8=D6=B7A0000=B5=BDBFFF=B5=C4=B1=BB=D3=C3=D7=F7vid=
eo memory=B5=C4=C4=DA=B4=E6.=B4=D3E0000=B5=BD//=20
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