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- From: Mingjie Xing <mingjie.xing@xxxxxxxxx>
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- Date: Sat, 1 Oct 2011 15:12:18 +0800
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From: =?utf-8?B?6Zmz6Z+L5Lu7?= <chenwj@xxxxxxxxxxxxxxxxx>
To: hellogcc@xxxxxxxxxxxxx
Subject: QEMU Internal - Tiny Code Generator (TCG)
Message-ID: <20111001033908.GA86776@xxxxxxxxxxxxxx>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
User-Agent: Mutt/1.5.21 (2010-09-15)
Content-Transfer-Encoding: quoted-printable
Copyright (c) 2011 =E9=99=B3=E9=9F=8B=E4=BB=BB (Chen Wen=
-Ren)
=E5=89=8D=E8=A8=80
=E5=9B=A0=E7=82=BA=E5=B7=A5=E4=BD=9C=E4=B8=8A=E7=9A=84=E9=97=9C=E4=BF=82=
=EF=BC=8C=E5=BF=85=E9=A0=88=E6=8E=A5=E8=A7=B8 QEMU=E3=80=82=E9=9B=96=E7=84=
=B6=E7=B6=B2=E8=B7=AF=E4=B8=8A=E6=9C=89=E4=B8=8D=E5=B0=91=E6=96=87=E4=BB=B6=
=EF=BC=8C=E4=BD=86=E7=B8=BD=E8=A6=BA=E5=BE=97=E8=AC=9B=E5=BE=97=E4=B8=8D=E5=
=A4=A0=E6=B7=B1=E5=85=A5=E3=80=82
QEMU =E6=98=AF=E4=B8=80=E5=80=8B=E4=BB=BF=E7=9C=9F=E5=99=A8 (emulator)=EF=
=BC=8C=E5=8F=AF=E4=BB=A5 process mode =E6=88=96=E6=98=AF system mode =E9=81=
=8B=E8=A1=8C=E3=80=82process
mode =E5=8F=AF=E4=BB=A5=E9=81=8B=E8=A1=8C=E4=B8=8D=E5=90=8C ISA =E5=90=8C=
=E4=B8=80 OS =E7=9A=84 binary; system mode =E5=8F=AF=E4=BB=A5=E5=9C=A8=E7=
=95=B6=E5=89=8D=E4=BD=9C=E6=A5=AD=E7=B3=BB=E7=B5=B1=E4=B8=8A=E9=81=8B=E8=A1=
=8C
=E5=8F=A6=E5=A4=96=E4=B8=80=E5=80=8B OS=E3=80=82=E6=88=91=E5=9C=A8=E6=94=B6=
=E9=9B=86=E5=90=84=E6=96=B9=E8=B3=87=E6=96=99=EF=BC=8C=E9=96=B1=E8=AE=80=E4=
=BB=A3=E7=A2=BC=E5=92=8C=E5=9C=A8=E9=83=B5=E4=BB=B6=E5=88=97=E8=A1=A8=E4=B8=
=8A=E7=99=BC=E5=95=8F=E4=B9=8B=E5=BE=8C=EF=BC=8C=E8=A6=BA=E5=BE=97=E7=95=A5=
=E6=9C=89=E5=BF=83=E5=BE=97=E3=80=82
=E5=9C=A8=E6=AD=A4=E5=B0=8D QEMU internal =E4=BD=9C=E4=B8=80=E5=80=8B=E8=BC=
=83=E7=82=BA=E6=B7=B1=E5=85=A5=E7=9A=84=E4=BB=8B=E7=B4=B9=E3=80=82=E6=86=91=
=E6=88=91=E5=80=8B=E4=BA=BA=E4=B9=8B=E5=8A=9B=EF=BC=8C=E9=9B=A3=E5=85=8D=E6=
=9C=89=E7=96=8F=E6=BC=8F=E6=88=96=E6=98=AF=E9=8C=AF=E8=AA=A4=E3=80=82
=E6=AC=8A=E4=B8=94=E7=95=B6=E4=BD=9C=E6=8B=8B=E7=A3=9A=E5=BC=95=E7=8E=89=E5=
=90=A7=E3=80=82=E5=B8=8C=E6=9C=9B=E5=90=84=E4=BD=8D=E4=B8=8D=E5=90=9D=E6=8C=
=87=E6=95=99=E3=80=82
0. =E8=A1=93=E8=AA=9E=E3=80=81=E7=B7=9A=E4=B8=8A=E8=B3=87=E6=BA=90=E5=92=8C=
=E6=8A=80=E5=B7=A7
=E5=B0=8D QEMU =E8=80=8C=E8=A8=80=EF=BC=8C=E8=A2=AB=E4=BB=BF=E7=9C=9F=E7=
=9A=84=E5=B9=B3=E5=8F=B0=E8=A2=AB=E7=A8=B1=E7=82=BA guest=EF=BC=8C=E5=8F=88=
=E7=A8=B1 target; =E9=81=8B=E8=A1=8C QEMU =E7=9A=84=E5=B9=B3=E5=8F=B0=E7=A8=
=B1=E7=82=BA host
=E3=80=82QEMU =E6=98=AF=E5=88=A9=E7=94=A8=E5=8B=95=E6=85=8B=E7=BF=BB=E8=AD=
=AF (dynamic translation) =E7=9A=84=E6=8A=80=E8=A1=93=E5=B0=87 guest bina=
ry =E5=8B=95=E6=85=8B=E7=BF=BB=E8=AD=AF=E6=88=90 host
binary=EF=BC=8C=E4=B8=A6=E4=BA=A4=E7=94=B1 host =E9=81=8B=E8=A1=8C=E7=BF=BB=
=E8=AD=AF=E6=89=80=E5=BE=97=E7=9A=84 host binary=E3=80=82Tiny Code Genera=
tor (TCG) =E6=98=AF QEMU
=E4=B8=AD=E8=B2=A0=E8=B2=AC=E5=8B=95=E6=85=8B=E7=BF=BB=E8=AD=AF=E7=9A=84=E7=
=B5=84=E4=BB=B6=E3=80=82=E5=B0=8D TCG =E8=80=8C=E8=A8=80=EF=BC=8Ctarget =E6=
=9C=89=E4=B8=8D=E5=90=8C=E7=9A=84=E5=90=AB=E6=84=8F=EF=BC=8C=E5=AE=83=E4=BB=
=A3=E8=A1=A8 TCG =E6=98=AF=E9=87=9D=E5=B0=8D=E5=93=AA=E4=B8=80=E5=80=8B
host =E7=94=9F=E6=88=90 host binary=E3=80=82
=E7=B6=B2=E8=B7=AF=E4=B8=8A=E5=B0=8D QEMU =E6=9C=89=E8=BC=83=E7=82=BA=E5=
=AE=8C=E6=95=B4=E6=8F=8F=E8=BF=B0=E7=9A=84=E6=96=87=E4=BB=B6=E7=82=BA:
- QEMU, a Fast and Portable Dynamic Translator
- Porting QEMU to Plan 9: QEMU Internals and Port Strategy
=E7=84=B6=E8=80=8C=E9=9C=80=E8=A6=81=E6=B3=A8=E6=84=8F=E7=9A=84=E6=98=AF=EF=
=BC=8C=E4=B8=8A=E8=BF=B0=E6=96=87=E4=BB=B6=E5=9C=A8=E5=8B=95=E6=85=8B=E7=BF=
=BB=E8=AD=AF=E7=9A=84=E9=83=A8=E5=88=86=E5=9D=87=E6=98=AF=E9=87=9D=E5=B0=8D=
QEMU 0.9 =E7=89=88=E3=80=82QEMU 0.9 =E7=89=88=E4=BB=A5=E5=89=8D=E6=98=AF
=E4=BD=BF=E7=94=A8 dyngen =E6=8A=80=E8=A1=93; QEMU 0.10 =E7=89=88=E4=BB=A5=
=E5=BE=8C=E6=8E=A1=E7=94=A8 TCG=E3=80=82=E9=9B=96=E8=AA=AA=E5=A6=82=E6=AD=
=A4=EF=BC=8C=E4=BD=86=E5=9C=A8 QEMU =E7=9A=84=E5=85=B6=E5=AE=83=E9=83=A8=E5=
=88=86=E5=B7=AE=E7=95=B0=E4=B8=8D=E5=A4=A7
=EF=BC=8C=E4=B8=8A=E8=BF=B0=E6=96=87=E4=BB=B6=E4=BB=8D=E5=8F=AF=E4=BE=9B=E5=
=8F=83=E8=80=83=E3=80=82http://qemu.sourcearchive.com/ =E6=94=B6=E9=9B=86=
=E4=BA=86=E8=87=AA QEMU 0.6.1 =E7=89=88=E8=87=B3=E4=BB=8A=E7=9A=84
=E6=89=80=E6=9C=89 QEMU =E6=BA=90=E4=BB=A3=E7=A2=BC=E3=80=82=E5=90=84=E4=BD=
=8D=E5=8F=AF=E4=BB=A5=E9=82=8A=E7=9C=8B=E6=96=87=E4=BB=B6=E9=82=8A=E7=9C=8B=
=E6=BA=90=E4=BB=A3=E7=A2=BC=E3=80=82
QEMU =E6=A5=B5=E7=82=BA=E4=BE=9D=E8=B3=B4 macro=EF=BC=8C=E9=80=99=E4=BD=
=BF=E5=BE=97=E7=9B=B4=E6=8E=A5=E9=96=B1=E8=AE=80=E6=BA=90=E4=BB=A3=E7=A2=BC=
=E9=80=9A=E5=B8=B8=E7=84=A1=E6=B3=95=E7=A2=BA=E5=AE=9A=E5=85=B6=E5=87=BD=E6=
=95=B8=E5=91=BC=E5=8F=AB=EF=BC=8C=E6=88=96=E6=98=AF=E5=9F=B7=E8=A1=8C=E6=B5=
=81=E7=A8=8B=E5=80=92=E5=BA=95
=E7=82=BA=E4=BD=95=E3=80=82=E8=AB=8B=E5=9C=A8=E7=B7=A8=E8=AD=AF QEMU =E7=9A=
=84=E6=99=82=E5=80=99=E5=8A=A0=E4=B8=8A "--extra-cflags=3D"-save-temps""=EF=
=BC=8C=E5=A6=82=E6=AD=A4=E5=8F=AF=E5=BE=97=E5=B1=95=E9=96=8B marco
=E7=9A=84 *.i =E6=AA=94=E3=80=82
=E5=85=B6=E9=A4=98=E9=83=A8=E5=88=86=E8=AB=8B=E8=A6=8B:
- http://wiki.qemu.org/Documentation/GettingStartedDevelopers
- QEMU =E7=9B=AE=E9=8C=84=E4=B8=8B=E7=9A=84 HACKING=E3=80=81CODING_STYL=
E=E3=80=81tcg/README =E5=92=8C doc/*
- ISA reference manual=E3=80=82
1. TCG
TCG =E6=98=AF QEMU =E7=9A=84=E6=A0=B8=E5=BF=83=E3=80=82=E5=85=B6=E5=9F=BA=
=E6=9C=AC=E6=B5=81=E7=A8=8B=E5=A6=82=E4=B8=8B:
guest binary -> TCG IR -> host binary
1.1 TCG IR
TCG =E5=AE=9A=E7=BE=A9=E4=BA=86=E4=B8=80=E7=B5=84 IR (intermediate repr=
esentation)=EF=BC=8C=E7=86=9F=E6=82=89 GCC =E7=9A=84=E5=90=84=E4=BD=8D=E5=
=B0=8D=E6=AD=A4=E6=87=89=E8=A9=B2=E4=B8=8D=E9=99=8C=E7=94=9F=E3=80=82
TCG IR =E5=A4=A7=E8=87=B4=E5=88=86=E6=88=90=E4=BB=A5=E4=B8=8B=E5=B9=BE=E9=
=A1=9E:
- Move Operation: mov, movi, ...
- Logic Operation: and, or, xor, shl, shr, ...
- Arithmetic Operation: add, sub, mul, div, ...
- Branch Operation: jmp, br, brcond
- Fuction call: call
- Memory Operation: ld, st
- QEMU specific Operation: tb_exit, goto_tb, qemu_ld/qemu_st
=E8=AB=8B=E8=A6=8B tcg/*=EF=BC=8C=E7=89=B9=E5=88=A5=E6=98=AF tcg.i=EF=BC=8C=
=E5=8F=AF=E4=BB=A5=E7=9C=8B=E5=88=B0 TCGOpcode=E3=80=82tcg/README =E4=B9=9F=
=E5=88=A5=E5=BF=98=E4=BA=86=E3=80=82TCG =E5=9C=A8=E7=BF=BB=E8=AD=AF guest
binary =E7=9A=84=E6=99=82=E5=80=99=E6=98=AF=E4=BB=A5=E4=B8=80=E5=80=8B tr=
anslation block (tb) =E7=82=BA=E5=96=AE=E4=BD=8D=EF=BC=8C=E5=85=B6=E7=B5=90=
=E5=B0=BE=E9=80=9A=E5=B8=B8=E6=98=AF=E5=88=86=E6=94=AF=E6=8C=87=E4=BB=A4=E3=
=80=82
target-ARCH/* =E5=AE=9A=E7=BE=A9=E4=BA=86=E5=A6=82=E4=BD=95=E5=B0=87 ARCH=
binary =E5=8F=8D=E5=8C=AF=E7=B7=A8=E6=88=90 TCG IR=E3=80=82tcg/ARCH =E5=AE=
=9A=E7=BE=A9=E4=BA=86=E5=A6=82=E4=BD=95=E5=B0=87
TCG IR =E7=BF=BB=E8=AD=AF=E6=88=90 ARCH binary=E3=80=82
1.2 TCG Flow
=E5=85=88=E4=BB=8B=E7=B4=B9=E4=B8=80=E4=BA=9B=E8=B3=87=E6=96=99=E7=B5=90=
=E6=A7=8B:
- gen_opc_buf =E5=92=8C gen_opparam_buf (translate-all.c) =E5=88=86=E5=88=
=A5=E6=94=BE=E7=BD=AE TCG Opcode =E5=92=8C Operand=E3=80=82
- =E5=A6=82=E6=9E=9C=E4=BD=BF=E7=94=A8=E9=9D=9C=E6=85=8B=E9=85=8D=E7=BD=
=AE=E7=9A=84=E7=B7=A9=E8=A1=9D=E5=8D=80=EF=BC=8Cstatic_code_gen_buffer (e=
xec.c) =E5=8D=B3=E7=82=BA code cache=EF=BC=8C=E6=94=BE=E7=BD=AE
host binary=E3=80=82
- =E5=9C=A8=E8=B7=B3=E5=85=A5/=E5=87=BA code cache =E5=9F=B7=E8=A1=8C=E4=
=B9=8B=E5=89=8D/=E5=BE=8C=EF=BC=8C=E8=A6=81=E5=9F=B7=E8=A1=8C prologue/ep=
ilogue=EF=BC=8C=E8=AB=8B=E8=A6=8B code_gen_prologue
(exec.c)=E3=80=82=E9=80=99=E9=82=8A=E7=9A=84 prologue/epilogue =E5=B0=
=B1=E6=98=AF=E6=8C=87 function prologue/epilogue=E3=80=82QEMU =E5=B0=87=E8=
=B7=B3=E8=87=B3
code cache (host binary) =E5=9F=B7=E8=A1=8C=E7=9A=84=E9=81=8E=E7=A8=8B=
=E7=9C=8B=E6=88=90=E6=98=AF=E5=87=BD=E5=BC=8F=E5=91=BC=E5=8F=AB=EF=BC=8C=E6=
=95=85=E6=9C=89=E6=AD=A4 prologue/epilogue=E3=80=82
=E4=BB=A5 qemu-i386 =E7=82=BA=E4=BE=8B=EF=BC=8C=E6=B5=81=E7=A8=8B=E5=A4=A7=
=E8=87=B4=E5=A6=82=E4=B8=8B:
main (linux-user/main.c) -> cpu_exec_init_all (exec.c)
-> cpu_init/cpu_x86_init (target-i386/helper.c)
-> tcg_prologue_init (tcg/tcg.c) -> cpu_loop (linux-user/main.c)=20
=E5=87=BD=E5=BC=8F=E5=90=8D=E4=B9=8B=E6=89=80=E4=BB=A5=E6=9C=83=E5=87=BA=E7=
=8F=BE cpu_init/cpu_x86_init=EF=BC=8C=E6=98=AF=E5=9B=A0=E7=82=BA QEMU =E7=
=B6=93=E5=B8=B8=E4=BD=BF=E7=94=A8 #define =E6=9B=BF=E6=8F=9B=E5=87=BD=E5=BC=
=8F=E5=90=8D=E3=80=82
cpu_init =E6=98=AF main =E8=A3=A1=E5=91=BC=E5=8F=AB=E7=9A=84=E5=87=BD=E5=BC=
=8F=EF=BC=8C=E7=B6=93 #define =E6=9B=BF=E6=8F=9B=E5=BE=8C=EF=BC=8C=E5=AF=A6=
=E9=9A=9B=E4=B8=8A=E6=98=AF cpu_x86_init
(target-i386/helper.c)=E3=80=82GDB =E4=B8=8B=E6=96=B7=E9=BB=9E=E6=99=82=E8=
=AB=8B=E6=B3=A8=E6=84=8F=E6=AD=A4=E7=A8=AE=E6=83=85=E6=B3=81=E3=80=82
=E9=80=99=E9=82=8A=E5=8F=AA=E4=BB=8B=E7=B4=B9 tcg_prologue_init (tcg/tcg.=
c) -> cpu_loop (linux-user/main.c) =E9=80=99=E4=B8=80=E6=AE=B5=EF=BC=8C=E5=
=9B=A0=E7=82=BA
=E9=80=99=E4=B8=80=E6=AE=B5=E8=B7=9F TCG =E8=BC=83=E7=82=BA=E7=9B=B8=E9=97=
=9C=E3=80=82=E5=AE=B9=E6=88=91=E5=85=88=E8=AC=9B cpu_loop (linux-user/mai=
n.c)=E3=80=82
- cpu_loop (linux-user/main.c) -> cpu_x86_exec/cpu_exec (cpu-exec.c)
cpu_exec =E6=98=AF=E4=B8=BB=E8=A6=81=E5=9F=B7=E8=A1=8C=E8=BF=B4=E5=9C=
=88=EF=BC=8C=E5=85=B6=E7=B5=90=E6=A7=8B=E5=A4=A7=E8=87=B4=E5=A6=82=E4=B8=8B=
:
/* prepare setjmp context for exception handling */
for(;;) {
if (setjmp(env->jmp_env) =3D=3D 0) { // =E4=BE=8B=E5=A4=96=E8=99=95=
=E7=90=86=E3=80=82
}
next_tb =3D 0; /* force lookup of first TB */
for(;;) {
// =E5=88=A4=E6=96=B7=E6=98=AF=E5=90=A6=E6=9C=89=E4=B8=AD=E6=96=
=B7=E3=80=82=E8=8B=A5=E6=9C=89=EF=BC=8C=E8=B7=B3=E5=9B=9E=E4=BE=8B=E5=A4=96=
=E8=99=95=E7=90=86=E3=80=82
next_tb =3D tcg_qemu_tb_exec(tc_ptr); // =E8=B7=B3=E8=87=B3 cod=
e cache =E5=9F=B7=E8=A1=8C=E3=80=82
}=20
}
- tcg_prologue_init (tcg/tcg.c) -> tcg_target_qemu_prologue (tcg/i386/t=
cg-target.c)
=E5=A6=82=E5=89=8D=E6=89=80=E8=BF=B0=EF=BC=8CQEMU =E5=B0=87=E8=B7=B3=E8=
=87=B3 code cache (host binary) =E5=9F=B7=E8=A1=8C=E7=9A=84=E9=81=8E=E7=A8=
=8B=E7=9C=8B=E6=88=90=E6=98=AF=E5=87=BD=E5=BC=8F=E5=91=BC=E5=8F=AB=E3=80=82=
=E4=B8=8D=E5=90=8C=E5=B9=B3=E5=8F=B0
=E7=9A=84 calling convention =E5=90=84=E6=9C=89=E4=B8=8D=E5=90=8C=EF=BC=
=8Ctcg_prologue_init =E5=B0=87=E7=94=A2=E7=94=9F prologue/epilogue =E7=9A=
=84=E5=B7=A5=E4=BD=9C
=E8=BD=89=E4=BA=A4 tcg_target_qemu_prologue=E3=80=82
static void tcg_target_qemu_prologue(TCGContext *s)
{
/* QEMU (cpu_exec) -> =E5=85=A5=E6=A3=A7 */
// OPC_GRP5 (0xff) =E7=82=BA call=EF=BC=8CEXT5_JMPN_Ev =E6=98=AF=E5=85=B6=
opcode extension=E3=80=82
// tcg_target_call_iarg_regs =E6=98=AF=E5=87=BD=E5=BC=8F=E5=91=BC=E5=8F=
=AB=E8=B2=A0=E8=B2=AC=E5=82=B3=E9=81=9E=E5=8F=83=E6=95=B8=E7=9A=84=E6=9A=AB=
=E5=AD=98=E5=99=A8=E3=80=82
tcg_out_modrm(s, OPC_GRP5, EXT5_JMPN_Ev, tcg_target_call_iarg_regs[0]);=
// =E8=B7=B3=E8=87=B3 code cache =E5=9F=B7=E8=A1=8C
// =E6=AD=A4=E6=99=82=EF=BC=8Cs->code_ptr =E6=8C=87=E5=90=91 code_gen_p=
rologue =E4=B8=AD prologue =E5=92=8C jmp to code cache =E4=B9=8B=E5=BE=8C=
=E7=9A=84=E4=BD=8D=E5=9D=80=E3=80=82
// tb_ret_addr =E6=98=AF=E7=B4=80=E9=8C=84 code cache =E8=B7=B3=E5=9B=9E=
code_gen_prologue =E7=9A=84=E5=93=AA=E5=80=8B=E5=9C=B0=E6=96=B9=E3=80=82
tb_ret_addr =3D s->code_ptr;
=20
/* =E5=87=BA=E6=A3=A7 -> =E8=BF=94=E5=9B=9E QEMU (cpu_exec)=EF=BC=8C=E7=
=A2=BA=E5=88=87=E7=9A=84=E8=AC=9B=E6=98=AF=E8=BF=94=E5=9B=9E tcg_qemu_tb_=
exec */
}
=E9=80=99=E9=82=8A=E5=B0=8F=E7=B5=90=E4=B8=80=E4=B8=8B QEMU -> prologu=
e -> code cache -> epilogue -> QEMU=E3=80=82tb_ret_addr =E5=B0=B1=E6=98=AF=
=E7=94=A8=E4=BE=86=E7=94=B1
code cache =E8=BF=94=E5=9B=9E=E8=87=B3 code_gen_prologue=EF=BC=8C=E5=9F=B7=
=E8=A1=8C epilogue=EF=BC=8C=E5=86=8D=E8=BF=94=E5=9B=9E QEMU=E3=80=82
=E5=9C=A8=E4=BB=8B=E7=B4=B9 cpu_exec =E4=B9=8B=E5=89=8D=EF=BC=8C=E6=88=91=
=E5=85=88=E4=BB=8B=E7=B4=B9=E5=B9=BE=E5=80=8B QEMU =E8=B3=87=E6=96=99=E7=B5=
=90=E6=A7=8B=EF=BC=8C=E8=AB=8B=E5=96=84=E7=94=A8 http://qemu.sourcearchiv=
e.com/ =E3=80=82
=E6=88=91=E5=80=91=E8=A6=81=E7=9F=A5=E9=81=93=E6=89=80=E8=AC=82=E4=BB=BF=E7=
=9C=9F=E6=88=96=E6=98=AF=E8=99=9B=E6=93=AC=E5=8C=96=E4=B8=80=E5=80=8B CPU=
(ISA)=EF=BC=8C=E7=B0=A1=E5=96=AE=E4=BE=86=E8=AA=AA=E5=B0=B1=E6=98=AF=E7=94=
=A8=E4=B8=80=E5=80=8B=E8=B3=87=E6=96=99=E7=B5=90=E6=A7=8B (struct) =E5=84=
=B2=E5=AD=98=E8=A9=B2
CPU =E7=9A=84=E7=8B=80=E6=85=8B=E3=80=82=E5=9F=B7=E8=A1=8C=E8=A9=B2=E8=99=
=9B=E6=93=AC CPU=EF=BC=8C=E5=B0=B1=E6=98=AF=E5=BE=9E=E5=85=A7=E5=AD=98=E4=
=B8=AD=E8=AE=80=E5=8F=96=E8=A9=B2=E8=99=9B=E6=93=AC CPU =E7=9A=84=E8=B3=87=
=E6=96=99=E7=B5=90=E6=A7=8B=EF=BC=8C=E9=81=8B=E7=AE=97=E5=BE=8C=E5=86=8D=E5=
=AD=98=E5=9B=9E=E5=8E=BB=E3=80=82
- CPUX86State: =E4=BF=9D=E5=AD=98 x86 register=EF=BC=8Ceflags=EF=BC=8Ce=
ip=EF=BC=8Ccs=EF=BC=8C...=E3=80=82=E4=B8=8D=E5=90=8C ISA =E4=B9=8B=E9=96=93=
=E9=80=9A=E7=94=A8=E7=9A=84=E8=B3=87=E6=96=99=E7=B5=90=E6=A7=8B=E8=A2=AB
QEMU #define =E6=88=90 CPU_COMMON=E3=80=82=E4=B8=80=E8=88=AC=E7=A8=B1=
=E6=AD=A4=E8=B3=87=E6=96=99=E7=B5=90=E6=A7=8B=E7=82=BA CPUState=E3=80=82=E4=
=B8=8B=E6=96=87=E6=89=80=E6=8F=90 env =E5=8D=B3=E7=82=BA CPUState=E3=80=82
QEMU =E9=81=8B=E8=A1=8C=E8=99=9B=E6=93=AC CPU =E9=83=BD=E6=9C=83=E5=88=
=A9=E7=94=A8 env =E9=80=99=E5=80=8B=E8=AE=8A=E6=95=B8=E3=80=82
- TranslationBlock: =E4=B9=8B=E5=89=8D=E8=AA=AA=E9=81=8E=EF=BC=8CQEMU =E6=
=98=AF=E4=BB=A5=E4=B8=80=E5=80=8B translation block =E7=82=BA=E5=96=AE=E4=
=BD=8D=E9=80=B2=E8=A1=8C=E7=BF=BB=E8=AD=AF=E3=80=82=E5=85=B6=E4=B8=AD=E4=BF=
=9D=E5=AD=98
=E6=AD=A4 translation block =E5=B0=8D=E6=87=89 guest binary =E7=9A=84=
pc, cs_base, eflags=E3=80=82=E5=8F=A6=E5=A4=96=EF=BC=8Ctc_ptr =E6=8C=87=E5=
=90=91 code
cache (host binary)=E3=80=82=E5=85=B6=E5=AE=83=E6=AC=84=E4=BD=8D=E5=BE=
=85=E4=BB=A5=E5=BE=8C=E5=86=8D=E8=AB=87=E3=80=82
code cache (host binary)
struct TranslationBlock's tb_ptr -> tb
=E4=B8=8A=E9=9D=A2=E6=98=AF=E7=A4=BA=E6=84=8F=E5=9C=96=E3=80=82=E6=B3=
=A8=E6=84=8F! =E4=BE=9D=E7=85=A7=E4=B8=8A=E4=B8=8B=E6=96=87=E7=9A=84=E4=B8=
=8D=E5=90=8C=EF=BC=8CTB (tb) =E5=8F=AF=E8=83=BD=E6=98=AF=E6=8C=87 struct =
TranslationBlock=EF=BC=8C=E4=B9=9F=E6=9C=89
=E5=8F=AF=E8=83=BD=E6=98=AF=E6=8C=87 code cache (host binary) =E4=B8=AD=
TranslationBlock =E6=89=80=E6=8C=87=E5=90=91=E7=9A=84 tb=E3=80=82=20
- PageDesc: =E4=B8=BB=E8=A6=81=E4=BF=9D=E5=AD=98 guest page =E4=B8=AD=E7=
=9A=84=E7=AC=AC=E4=B8=80=E5=80=8B tb (TranslationBlock *)=E3=80=82=E9=80=99=
=E8=B7=9F QEMU =E5=85=A7=E9=83=A8=E9=81=8B=E4=BD=9C
=E6=A9=9F=E5=88=B6=E6=9C=89=E9=97=9C=E3=80=82=E6=9F=90=E4=BA=9B=E6=83=
=85=E6=B3=81=E4=B8=8B=EF=BC=8Cguest page (guest binary) =E5=8F=AF=E8=83=BD=
=E8=A2=AB=E6=9B=BF=E6=8F=9B=E6=88=96=E6=98=AF=E8=A2=AB=E5=AF=AB=E3=80=82=E9=
=80=99=E5=80=8B=E6=99=82=E5=80=99=EF=BC=8CQEMU
=E6=9C=83=E4=BB=A5 guest page (guest binary) =E7=82=BA=E5=96=AE=E4=BD=
=8D=EF=BC=8C=E6=B8=85=E7=A9=BA=E8=88=87=E5=AE=83=E7=9B=B8=E9=97=9C=E8=81=AF=
=E7=9A=84 TB (code cache)=E3=80=82=E9=80=99=E6=99=82=E5=86=8D=E5=9B=9E=E4=
=BE=86=E8=AC=9B
TranslationBlock=E3=80=82TranslationBlock =E6=9C=89=E5=BA=95=E4=B8=8B=
=E5=85=A9=E5=80=8B=E6=AC=84=E4=BD=8D:
- page_addr[2]: =E5=AD=98=E6=94=BE TranslationBlock =E5=B0=8D=E6=87=89=
guest binary =E6=89=80=E5=9C=A8=E7=9A=84 guest page=E3=80=82=E6=B3=A8=E6=
=84=8F! guest
binary =E6=9C=89=E5=8F=AF=E8=83=BD=E8=B7=A8 guest page=EF=BC=8C=E6=95=
=85=E9=80=99=E8=A3=A1=E6=9C=89=E5=85=A9=E5=80=8B=E6=AC=84=E4=BD=8D=E3=80=82=
=20
- page_next[2]: =E7=95=B6=E9=80=8F=E9=81=8E PageDesc->first_tb =E6=89=
=BE=E5=88=B0=E8=A9=B2 guest page =E7=9A=84=E7=AC=AC=E4=B8=80=E5=80=8B tb=EF=
=BC=8Ctb->page_next
=E5=B0=B1=E8=A2=AB=E7=94=A8=E4=BE=86=E6=89=BE=E5=B0=8B=E8=A9=B2 gue=
st page =E7=9A=84=E4=B8=8B=E4=B8=80=E5=80=8B tb=E3=80=82
=E5=86=8D=E5=9B=9E=E4=BE=86=E8=AC=9B PageDesc=E3=80=82QEMU =E6=9B=BF =
PageDesc =E7=B6=AD=E8=AD=B7=E4=BA=86=E4=B8=80=E5=80=8B=E4=BA=8C=E7=B4=9A=E9=
=A0=81=E8=A1=A8 l1_map=E3=80=82page_find =E9=80=99=E5=80=8B=E5=87=BD=E5=BC=
=8F=E6=A0=B9=E6=93=9A
=E8=BC=B8=E5=85=A5=E7=9A=84 address =E6=90=9C=E5=B0=8B l1_map=EF=BC=8C=
=E8=BF=94=E5=9B=9E PageDesc=E3=80=82=E9=80=99=E5=9C=A8=E4=BB=A5 guest pag=
e (guest binary) =E7=82=BA=E5=96=AE=E4=BD=8D=EF=BC=8C
=E6=B8=85=E7=A9=BA=E8=88=87=E5=AE=83=E7=9B=B8=E9=97=9C=E8=81=AF=E7=9A=
=84 TB (code cache) =E7=9A=84=E6=99=82=E5=80=99=E6=9C=83=E7=94=A8=E5=88=B0=
=E3=80=82
=E6=9C=89=E4=B8=80=E5=80=8B=E5=90=8D=E5=AD=97=E5=BE=88=E5=83=8F=E7=9A=
=84=E8=B3=87=E6=96=99=E7=B5=90=E6=A7=8B=E5=8F=AB PhysPageDesc=EF=BC=8CQEM=
U =E4=B9=9F=E6=9B=BF=E5=AE=83=E7=B6=AD=E8=AD=B7=E4=B8=80=E5=80=8B=E4=BA=8C=
=E7=B4=9A=E9=A0=81=E8=A1=A8 l1_phys_map=E3=80=82=E9=80=99=E6=98=AF
=E5=9C=A8 system mode =E5=81=9A=E5=9C=B0=E5=9D=80=E8=BD=89=E6=8F=9B=E4=
=B9=8B=E7=94=A8=EF=BC=8C=E9=80=99=E9=82=8A=E4=B8=8D=E8=AB=87=E3=80=82=20
- TCGContext: =E7=94=9F=E6=88=90 TCG IR =E6=99=82=E6=9C=83=E7=94=A8=E5=88=
=B0=E3=80=82
- DisasContext: =E5=8F=8D=E5=8C=AF=E7=B7=A8 guest binary =E6=99=82=E6=9C=
=83=E7=94=A8=E5=88=B0=E3=80=82 =20
--=20
Wei-Ren Chen (=E9=99=B3=E9=9F=8B=E4=BB=BB)
Computer Systems Lab, Institute of Information Science,
Academia Sinica, Taiwan (R.O.C.)
Tel:886-2-2788-3799 #1667
// eompost 4E868C3F:13B0.1:uryybtpp
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