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Chiharu Shirasaka 2021-03-05 23:30:03 +09:00
parent 561982b6dd
commit 60d409f947
1 changed files with 7 additions and 37 deletions
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44
tablewalker/ResetKitHelper.cpp
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@ -109,8 +109,6 @@ extern "C" RESETKITHELPER_API BOOL RKH_IOControl(DWORD handle, DWORD dwIoControl
OutputDebugString(buf); OutputDebugString(buf);
for(unsigned int i=0;i<0xffffffff;i+=4096){ for(unsigned int i=0;i<0xffffffff;i+=4096){
table0=(unsigned int *)((TTBR0&0xFFFFC000)|((i>>19)<<2)); table0=(unsigned int *)((TTBR0&0xFFFFC000)|((i>>19)<<2));
swprintf(buf, L"table0 addr=%#x\r\n", table0);
OutputDebugString(buf);
asm volatile( asm volatile(
"mrc p15,0,r10,c1,c0,0\n" // read ctrl regs "mrc p15,0,r10,c1,c0,0\n" // read ctrl regs
"mov r9,r10\n" "mov r9,r10\n"
@ -118,30 +116,11 @@ extern "C" RESETKITHELPER_API BOOL RKH_IOControl(DWORD handle, DWORD dwIoControl
"mcr p15,0,r10,c1,c0,0\n"// disable MMU "mcr p15,0,r10,c1,c0,0\n"// disable MMU
"ldr %0, [%1]\n" "ldr %0, [%1]\n"
"mcr p15,0,r9,c1,c0,0\n" // enable MMU "mcr p15,0,r9,c1,c0,0\n" // enable MMU
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
:"=r" (descriptor): "r" (table0):"r10","r9","r8" :"=r" (descriptor): "r" (table0):"r10","r9","r8"
); );
swprintf(buf, L"table0=%#x\r\n", descriptor);
OutputDebugString(buf);
if((descriptor&0x3)==0)continue; //Invalid if((descriptor&0x3)==0)continue; //Invalid
else if((descriptor&0x3)==1){ //Page Table else if((descriptor&0x3)==1){ //Page Table
table1=(unsigned int *)((descriptor&0xFFFFFC00)|((i&0xFF000)>>9)); table1=(unsigned int *)((descriptor&0xFFFFFC00)|((i&0xFF000)>>9));
swprintf(buf, L"table1 addr=%#x\r\n", table1);
OutputDebugString(buf);
asm volatile( asm volatile(
"mrc p15,0,r10,c1,c0,0\n" // read ctrl regs "mrc p15,0,r10,c1,c0,0\n" // read ctrl regs
"mov r9,r10\n" "mov r9,r10\n"
@ -149,31 +128,22 @@ extern "C" RESETKITHELPER_API BOOL RKH_IOControl(DWORD handle, DWORD dwIoControl
"mcr p15,0,r10,c1,c0,0\n"// disable MMU "mcr p15,0,r10,c1,c0,0\n"// disable MMU
"ldr %0, [%1]\n" "ldr %0, [%1]\n"
"mcr p15,0,r9,c1,c0,0\n" // enable MMU "mcr p15,0,r9,c1,c0,0\n" // enable MMU
"nop\n" :"=r" (descriptor): "r" (table1):"r10","r9","r8"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
"nop\n"
: "=r" (table1):"r" (descriptor):"r10","r9","r8"
); );
if(descriptor&0x3==1){//large page if(descriptor&0x3==1){//large page
swprintf(buf, L"Virt Addr=%#x : Phys Addr=%#x\r\n",i,(descriptor&0xFFFF0000)|(i&0xFFFF));
OutputDebugString(buf);
if(((descriptor&0xFFFF0000)|(i&0xFFFF))==0x40000000)ram=i; if(((descriptor&0xFFFF0000)|(i&0xFFFF))==0x40000000)ram=i;
else if(((descriptor&0xFFFF0000)|(i&0xFFFF0000))==0x80070000)ahp=i; else if(((descriptor&0xFFFF0000)|(i&0xFFFF0000))==0x80070000)ahp=i;
}else{//small page }else{//small page
swprintf(buf, L"Virt Addr=%#x : Phys Addr=%#x\r\n",i,(descriptor&0xFFFFF000)|(i&0xFFF));
OutputDebugString(buf);
if(((descriptor&0xFFFFF000)|(i&0xFFF))==0x40000000)ram=i; if(((descriptor&0xFFFFF000)|(i&0xFFF))==0x40000000)ram=i;
else if(((descriptor&0xFFFFF000)|(i&0xFFF))==0x80070000)ahp=i; else if(((descriptor&0xFFFFF000)|(i&0xFFF))==0x80070000)ahp=i;
} }
}else if((descriptor&0x40000)){ //Section }else if((descriptor&0x40000)){ //Section
swprintf(buf, L"Virt Addr=%#x : Phys Addr=%#x\r\n",i,(descriptor&0xFFF00000)|(i&0xFFFFF));
OutputDebugString(buf);
if(((descriptor&0xFFF00000)|(i&0xFFFFF))==0x40000000)ram=i; if(((descriptor&0xFFF00000)|(i&0xFFFFF))==0x40000000)ram=i;
else if(((descriptor&0xFFF00000)|(i&0xFFFFF))==0x80070000)ahp=i; else if(((descriptor&0xFFF00000)|(i&0xFFFFF))==0x80070000)ahp=i;
}else continue; //Supersection }else continue; //Supersection