LowLevel/Luma3DS-3GX
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change kext base address to 0x70000000

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TuxSH
2020-04-28 02:39:57 +01:00
parent 44cd3928fb
commit cd68b66c03
3 changed files with 20 additions and 16 deletions
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14
k11_extension/source/main.c
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@@ -32,6 +32,8 @@
#include "svc/ConnectToPort.h"
#include "svcHandler.h"
#define K11EXT_VA 0x70000000
struct KExtParameters
{
u32 basePA;
@@ -41,13 +43,13 @@ struct KExtParameters
CfwInfo cfwInfo;
} kExtParameters = { .basePA = 0x12345678 }; // place this in .data
static ALIGN(1024) u32 L2TableFor0x40000000[256] = {0};
static ALIGN(1024) u32 g_L2Table[256] = {0};
void relocateAndSetupMMU(u32 coreId, u32 *L1Table)
{
struct KExtParameters *p0 = (struct KExtParameters *)((u32)&kExtParameters - 0x40000000 + 0x18000000);
struct KExtParameters *p = (struct KExtParameters *)((u32)&kExtParameters - 0x40000000 + p0->basePA);
u32 *L2Table = (u32 *)((u32)L2TableFor0x40000000 - 0x40000000 + p0->basePA);
struct KExtParameters *p0 = (struct KExtParameters *)((u32)&kExtParameters - K11EXT_VA + 0x18000000);
struct KExtParameters *p = (struct KExtParameters *)((u32)&kExtParameters - K11EXT_VA + p0->basePA);
u32 *L2Table = (u32 *)((u32)g_L2Table - K11EXT_VA + p0->basePA);
if(coreId == 0)
{
@@ -56,7 +58,7 @@ void relocateAndSetupMMU(u32 coreId, u32 *L1Table)
memcpy((void *)p0->basePA, (const void *)0x18000000, __bss_start__ - __start__);
memset((u32 *)(p0->basePA + (__bss_start__ - __start__)), 0, __bss_end__ - __bss_start__);
// Map the kernel ext to 0x40000000
// Map the kernel ext at K11EXT_VA
// 4KB extended small pages: [SYS:RW USR:-- X TYP:NORMAL SHARED OUTER NOCACHE, INNER CACHED WB WA]
for(u32 offset = 0; offset < (u32)(__end__ - __start__); offset += 0x1000)
L2Table[offset >> 12] = (p0->basePA + offset) | 0x516;
@@ -76,7 +78,7 @@ void relocateAndSetupMMU(u32 coreId, u32 *L1Table)
L1Table[i + (VA >> 20)] = PA | attribs;
}
L1Table[0x40000000 >> 20] = (u32)L2Table | 1;
L1Table[K11EXT_VA >> 20] = (u32)L2Table | 1;
p->L1MMUTableAddrs[coreId] = (u32)L1Table;
}