LowLevel/Luma3DS-3GX
Archived
1
0
Fork 0
Code Issues Pull Requests Releases 2 Wiki Activity

Merge branch 'memregion-test'

Browse Source
This commit is contained in:
TuxSH
2017-06-13 02:28:38 +02:00
parent 2ff9718510 e1d0602f25
commit a17311c955
78 changed files with 357 additions and 605 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
sysmodules/rosalina/source/errdisp.c
View File

@@ -146,7 +146,7 @@ void ERRF_DisplayError(ERRF_FatalErrInfo *info)
switch(info->type)
{
case ERRF_ERRTYPE_CARD_REMOVED:
desc = "The Game Card was removed.";
desc = "The card was removed.";
break;
case ERRF_ERRTYPE_MEM_CORRUPT:
desc = "The System Memory has been damaged.";

61
sysmodules/rosalina/source/kernel_extension.s
View File

@@ -1,61 +0,0 @@
@ This file is part of Luma3DS
@ Copyright (C) 2016-2017 Aurora Wright, TuxSH
@
@ This program is free software: you can redistribute it and/or modify
@ it under the terms of the GNU General Public License as published by
@ the Free Software Foundation, either version 3 of the License, or
@ (at your option) any later version.
@
@ This program is distributed in the hope that it will be useful,
@ but WITHOUT ANY WARRANTY; without even the implied warranty of
@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
@ GNU General Public License for more details.
@
@ You should have received a copy of the GNU General Public License
@ along with this program. If not, see <http://www.gnu.org/licenses/>.
@
@ Additional Terms 7.b and 7.c of GPLv3 apply to this file:
@ * Requiring preservation of specified reasonable legal notices or
@ author attributions in that material or in the Appropriate Legal
@ Notices displayed by works containing it.
@ * Prohibiting misrepresentation of the origin of that material,
@ or requiring that modified versions of such material be marked in
@ reasonable ways as different from the original version.
.text
.arm
.balign 4
.global svc0x2F
.type svc0x2F, %function
svc0x2F:
@ custom backdoor before kernel ext. is installed
svc 0x2F
bx lr
.global convertVAToPA
.type convertVAToPA, %function
convertVAToPA:
@ needs to be executed in supervisor mode
mov r1, #0x1000
sub r1, #1
and r2, r0, r1
bic r0, r1
mcr p15, 0, r0, c7, c8, 0 @ VA to PA translation with privileged read permission check
mrc p15, 0, r0, c7, c4, 0 @ read PA register
tst r0, #1 @ failure bit
bic r0, r1
addeq r0, r2
movne r0, #0
bx lr
.section .data
.p2align 12
.global kernel_extension
kernel_extension: .incbin "build/kernel_extension.bin"
.p2align 12
kernel_extension_end:
.global kernel_extension_size
kernel_extension_size: .word kernel_extension_end - kernel_extension

148
sysmodules/rosalina/source/kernel_extension_setup.c
View File

@@ -1,148 +0,0 @@
/*
* This file is part of Luma3DS
* Copyright (C) 2016-2017 Aurora Wright, TuxSH
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Additional Terms 7.b and 7.c of GPLv3 apply to this file:
* * Requiring preservation of specified reasonable legal notices or
* author attributions in that material or in the Appropriate Legal
* Notices displayed by works containing it.
* * Prohibiting misrepresentation of the origin of that material,
* or requiring that modified versions of such material be marked in
* reasonable ways as different from the original version.
*/
#include "kernel_extension.h"
#include "kernel_extension_setup.h"
#define MPCORE_REGS_BASE ((u32)PA_PTR(0x17E00000))
#define MPCORE_GID_REGS_BASE (MPCORE_REGS_BASE + 0x1000)
#define MPCORE_GID_SGI (*(vu32 *)(MPCORE_GID_REGS_BASE + 0xF00))
struct Parameters
{
void (*SGI0HandlerCallback)(struct Parameters *, u32 *);
void *interruptManager;
u32 *L2MMUTable; // bit31 mapping
void (*initFPU)(void);
void (*mcuReboot)(void);
void (*coreBarrier)(void);
u32 TTBCR;
u32 L1MMUTableAddrs[4];
u32 kernelVersion;
struct CfwInfo
{
char magic[4];
u8 versionMajor;
u8 versionMinor;
u8 versionBuild;
u8 flags;
u32 commitHash;
u32 config;
} __attribute__((packed)) info;
};
static void K_SGI0HandlerCallback(volatile struct Parameters *p)
{
u32 L1MMUTableAddr;
vu32 *L1MMUTable;
u32 coreId;
__asm__ volatile("cpsid aif"); // disable interrupts
p->coreBarrier();
__asm__ volatile("mrc p15, 0, %0, c0, c0, 5" : "=r"(coreId));
coreId &= 3;
__asm__ volatile("mrc p15, 0, %0, c2, c0, 1" : "=r"(L1MMUTableAddr));
L1MMUTableAddr &= ~0x3FFF;
p->L1MMUTableAddrs[coreId] = L1MMUTableAddr;
L1MMUTable = (vu32 *)(L1MMUTableAddr | (1 << 31));
// Actually map the kernel ext
u32 L2MMUTableAddr = (u32)(p->L2MMUTable) & ~(1 << 31);
L1MMUTable[0x40000000 >> 20] = L2MMUTableAddr | 1;
__asm__ __volatile__("mcr p15, 0, %[val], c7, c10, 4" :: [val] "r" (0) : "memory");
((void (*)(volatile struct Parameters *))0x40000000)(p);
p->coreBarrier();
}
static u32 ALIGN(0x400) L2MMUTableFor0x40000000[256] = { 0 };
u32 TTBCR;
static void K_ConfigureSGI0(void)
{
// see /patches/k11MainHook.s
u32 *off;
u32 *initFPU, *mcuReboot, *coreBarrier;
// Search for stuff in the 0xFFFF0000 page
for(initFPU = (u32 *)0xFFFF0000; initFPU < (u32 *)0xFFFF1000 && *initFPU != 0xE1A0D002; initFPU++);
initFPU += 3;
for(mcuReboot = initFPU; mcuReboot < (u32 *)0xFFFF1000 && *mcuReboot != 0xE3A0A0C2; mcuReboot++);
mcuReboot--;
coreBarrier = (u32 *)decodeARMBranch(mcuReboot - 4);
for(off = mcuReboot; off < (u32 *)0xFFFF1000 && *off != 0x726C6468; off++); // "hdlr"
volatile struct Parameters *p = (struct Parameters *)PA_FROM_VA_PTR(off); // Caches? What are caches?
p->SGI0HandlerCallback = (void (*)(struct Parameters *, u32 *))PA_FROM_VA_PTR(K_SGI0HandlerCallback);
p->L2MMUTable = (u32 *)PA_FROM_VA_PTR(L2MMUTableFor0x40000000);
p->initFPU = (void (*) (void))initFPU;
p->mcuReboot = (void (*) (void))mcuReboot;
p->coreBarrier = (void (*) (void))coreBarrier;
__asm__ volatile("mrc p15, 0, %0, c2, c0, 2" : "=r"(TTBCR));
p->TTBCR = TTBCR;
p->kernelVersion = *(vu32 *)0x1FF80000;
// Now let's configure the L2 table
//4KB extended small pages: [SYS:RW USR:-- X TYP:NORMAL SHARED OUTER NOCACHE, INNER CACHED WB WA]
for(u32 offset = 0; offset < kernel_extension_size; offset += 0x1000)
L2MMUTableFor0x40000000[offset >> 12] = (u32)convertVAToPA(kernel_extension + offset) | 0x516;
}
static void K_SendSGI0ToAllCores(void)
{
MPCORE_GID_SGI = 0xF0000; // http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0360f/CACGDJJC.html
}
static inline void flushAllCaches(void)
{
svcUnmapProcessMemory(CUR_PROCESS_HANDLE, 0, 0); // this SVC flush both caches entirely (and properly) even when returing an error
}
void installKernelExtension(void)
{
svc0x2F(K_ConfigureSGI0);
flushAllCaches();
svc0x2F(K_SendSGI0ToAllCores);
flushAllCaches();
*(volatile bool *)0x1FF81108 = true;
}

8
sysmodules/rosalina/source/main.c
View File

@@ -33,7 +33,6 @@
#include "hbloader.h"
#include "utils.h"
#include "MyThread.h"
#include "kernel_extension_setup.h"
#include "menus/process_patches.h"
// this is called before main
@@ -67,18 +66,15 @@ void __ctru_exit()
__appExit();
__sync_fini();
__libc_fini_array();
svcSleepThread(-1LL); // kernel-loaded sysmodules except PXI are not supposed to terminate anyways
for(;;) svcSleepThread(0); // kernel-loaded sysmodules except PXI are not supposed to terminate anyways
svcExitProcess();
}
void initSystem()
{
__libc_init_array();
HBLDR_3DSX_TID = HBLDR_DEFAULT_3DSX_TID;
installKernelExtension();
__libc_init_array();
__sync_init();
__appInit();
}