git subrepo pull emummc

subrepo:
  subdir:   "emummc"
  merged:   "5f5817e6"
upstream:
  origin:   "https://github.com/m4xw/emuMMC"
  branch:   "develop"
  commit:   "5f5817e6"
git-subrepo:
  version:  "0.4.0"
  origin:   "https://github.com/ingydotnet/git-subrepo"
  commit:   "5d6aba9"

emummc/.gitrepo

@@ -6,7 +6,7 @@
 [subrepo]
 	remote = https://github.com/m4xw/emuMMC
 	branch = develop
-	commit = 5f51fa3b81d2b14b348f6e8579454007019fc7a6
+	commit = 5f5817e646d4c800ae4bd6db4a57eee6bde62eed
-	parent = e871a754a87631c3036ca985ff1c223e00ef4dda
+	parent = 68091a28a23836032c98396259f7ee4796b312f9
 	method = rebase
 	cmdver = 0.4.0

emummc/README.md

@@ -2,7 +2,7 @@
 *A SDMMC driver replacement for Nintendo's Filesystem Services, by **m4xw***  
 
 ### Supported Horizon Versions
-**1.0.0 - 8.1.0**
+**1.0.0 - 9.0.0**
 
 ## Features
 * Arbitrary SDMMC backend selection  

emummc/source/FS/FS_offsets.c

@@ -41,6 +41,8 @@
 #include "offsets/800_exfat.h"
 #include "offsets/810.h"
 #include "offsets/810_exfat.h"
+#include "offsets/900.h"
+#include "offsets/900_exfat.h"
 #include "../utils/fatal.h"
 
 #define GET_OFFSET_STRUCT_NAME(vers) g_offsets##vers
@@ -92,6 +94,8 @@ DEFINE_OFFSET_STRUCT(_800);
 DEFINE_OFFSET_STRUCT(_800_EXFAT);
 DEFINE_OFFSET_STRUCT(_810);
 DEFINE_OFFSET_STRUCT(_810_EXFAT);
+DEFINE_OFFSET_STRUCT(_900);
+DEFINE_OFFSET_STRUCT(_900_EXFAT);
 
 const fs_offsets_t *get_fs_offsets(enum FS_VER version) {
     switch (version) {
@@ -145,6 +149,10 @@ const fs_offsets_t *get_fs_offsets(enum FS_VER version) {
             return &(GET_OFFSET_STRUCT_NAME(_810));
         case FS_VER_8_1_0_EXFAT:
             return &(GET_OFFSET_STRUCT_NAME(_810_EXFAT));
+        case FS_VER_9_0_0:
+            return &(GET_OFFSET_STRUCT_NAME(_900));
+        case FS_VER_9_0_0_EXFAT:
+            return &(GET_OFFSET_STRUCT_NAME(_900_EXFAT));
         default:
             fatal_abort(Fatal_UnknownVersion);
     }

emummc/source/FS/FS_versions.h

@@ -59,6 +59,9 @@ enum FS_VER
     FS_VER_8_1_0,
     FS_VER_8_1_0_EXFAT,
 
+    FS_VER_9_0_0,
+    FS_VER_9_0_0_EXFAT,
+
     FS_VER_MAX,
 };
 

emummc/source/FS/offsets/900.h

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2019 m4xw <m4x@m4xw.net>
+ * Copyright (c) 2019 Atmosphere-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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/>.
+ */
+#ifndef __FS_900_H__
+#define __FS_900_H__
+
+// Accessor vtable getters
+#define FS_OFFSET_900_SDMMC_ACCESSOR_GC   0x1430F0
+#define FS_OFFSET_900_SDMMC_ACCESSOR_SD   0x141200
+#define FS_OFFSET_900_SDMMC_ACCESSOR_NAND 0x13C080
+
+// Hooks
+#define FS_OFFSET_900_SDMMC_WRAPPER_READ  0x1377E0
+#define FS_OFFSET_900_SDMMC_WRAPPER_WRITE 0x1378C0
+#define FS_OFFSET_900_RTLD                0x454
+#define FS_OFFSET_900_RTLD_DESTINATION    0x9C
+
+#define FS_OFFSET_900_CLKRST_SET_MIN_V_CLK_RATE 0x136A00
+
+// Misc funcs
+#define FS_OFFSET_900_LOCK_MUTEX          0x25280
+#define FS_OFFSET_900_UNLOCK_MUTEX        0x252D0
+
+#define FS_OFFSET_900_SDMMC_WRAPPER_CONTROLLER_CLOSE 0x137740
+
+// Misc Data
+#define FS_OFFSET_900_SD_MUTEX            0xE1D3E8
+#define FS_OFFSET_900_NAND_MUTEX          0xE18258
+#define FS_OFFSET_900_ACTIVE_PARTITION    0xE18298
+#define FS_OFFSET_900_SDMMC_DAS_HANDLE    0xDFEFA0
+
+// NOPs
+#define FS_OFFSET_900_SD_DAS_INIT         0x1472BC
+
+// Nintendo Paths
+#define FS_OFFSET_900_NINTENDO_PATHS \
+{ \
+	{.opcode_reg = 3, .adrp_offset = 0x00068A60, .add_rel_offset = 0x00000004}, \
+	{.opcode_reg = 3, .adrp_offset = 0x00070A40, .add_rel_offset = 0x00000004}, \
+	{.opcode_reg = 3, .adrp_offset = 0x00081CB4, .add_rel_offset = 0x00000004}, \
+	{.opcode_reg = 3, .adrp_offset = 0x00081EF4, .add_rel_offset = 0x00000004}, \
+	{.opcode_reg = 4, .adrp_offset = 0x0008211C, .add_rel_offset = 0x00000004}, \
+	{.opcode_reg = 0, .adrp_offset = 0, .add_rel_offset = 0}, \
+}
+
+#endif // __FS_900_H__

emummc/source/FS/offsets/900_exfat.h

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2019 m4xw <m4x@m4xw.net>
+ * Copyright (c) 2019 Atmosphere-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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/>.
+ */
+#ifndef __FS_900_EXFAT_H__
+#define __FS_900_EXFAT_H__
+
+// Accessor vtable getters
+#define FS_OFFSET_900_EXFAT_SDMMC_ACCESSOR_GC   0x1430F0
+#define FS_OFFSET_900_EXFAT_SDMMC_ACCESSOR_SD   0x141200
+#define FS_OFFSET_900_EXFAT_SDMMC_ACCESSOR_NAND 0x13C080
+
+// Hooks
+#define FS_OFFSET_900_EXFAT_SDMMC_WRAPPER_READ  0x1377E0
+#define FS_OFFSET_900_EXFAT_SDMMC_WRAPPER_WRITE 0x1378C0
+#define FS_OFFSET_900_EXFAT_RTLD                0x454
+#define FS_OFFSET_900_EXFAT_RTLD_DESTINATION    0x9C
+
+#define FS_OFFSET_900_EXFAT_CLKRST_SET_MIN_V_CLK_RATE 0x136A00
+
+// Misc funcs
+#define FS_OFFSET_900_EXFAT_LOCK_MUTEX          0x25280
+#define FS_OFFSET_900_EXFAT_UNLOCK_MUTEX        0x252D0
+
+#define FS_OFFSET_900_EXFAT_SDMMC_WRAPPER_CONTROLLER_CLOSE 0x137740
+
+// Misc Data
+#define FS_OFFSET_900_EXFAT_SD_MUTEX            0xE2B3E8
+#define FS_OFFSET_900_EXFAT_NAND_MUTEX          0xE26258
+#define FS_OFFSET_900_EXFAT_ACTIVE_PARTITION    0xE26298
+#define FS_OFFSET_900_EXFAT_SDMMC_DAS_HANDLE    0xE0CFA0
+
+// NOPs
+#define FS_OFFSET_900_EXFAT_SD_DAS_INIT         0x1472BC
+
+// Nintendo Paths
+#define FS_OFFSET_900_EXFAT_NINTENDO_PATHS \
+{ \
+	{.opcode_reg = 3, .adrp_offset = 0x00068A60, .add_rel_offset = 0x00000004}, \
+	{.opcode_reg = 3, .adrp_offset = 0x00070A40, .add_rel_offset = 0x00000004}, \
+	{.opcode_reg = 3, .adrp_offset = 0x00081CB4, .add_rel_offset = 0x00000004}, \
+	{.opcode_reg = 3, .adrp_offset = 0x00081EF4, .add_rel_offset = 0x00000004}, \
+	{.opcode_reg = 4, .adrp_offset = 0x0008211C, .add_rel_offset = 0x00000004}, \
+	{.opcode_reg = 0, .adrp_offset = 0, .add_rel_offset = 0}, \
+}
+
+#endif // __FS_900_EXFAT_H__

emummc/source/utils/fatal.c

@@ -15,13 +15,26 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <string.h>
 #include "fatal.h"
 
 void __attribute__((noreturn)) fatal_abort(enum FatalReason abortReason)
 {
+    atmosphere_fatal_error_ctx error_ctx;
+    memset(&error_ctx, 0, sizeof(atmosphere_fatal_error_ctx));
+
+    // Basic error storage for Atmosphere
+    // TODO: Maybe include a small reboot2payload stub?
+    error_ctx.magic = ATMOSPHERE_REBOOT_TO_FATAL_MAGIC;
+    error_ctx.title_id = 0x0100000000000000; // FS
+    error_ctx.error_desc = abortReason;
+
+    // Copy fatal context
+    smcCopyToIram(ATMOSPHERE_FATAL_ERROR_ADDR, &error_ctx, sizeof(atmosphere_fatal_error_ctx));
+
     // Reboot to RCM
     smcRebootToRcm();
 
-    while(true)
+    while (true)
         ; // Should never be reached
 }

emummc/source/utils/fatal.h

@@ -18,7 +18,8 @@
 #pragma once
 #include "../nx/smc.h"
 
-enum FatalReason {
+enum FatalReason
+{
     Fatal_InitMMC = 0,
     Fatal_InitSD,
     Fatal_InvalidAccessor,
@@ -32,4 +33,45 @@ enum FatalReason {
     Fatal_Max
 };
 
+#define AMS_FATAL_ERROR_MAX_STACKTRACE 0x20
+#define AMS_FATAL_ERROR_MAX_STACKDUMP 0x100
+
+/* Atmosphere reboot-to-fatal-error. */
+typedef struct
+{
+    uint32_t magic;
+    uint32_t error_desc;
+    uint64_t title_id;
+    union {
+        uint64_t gprs[32];
+        struct
+        {
+            uint64_t _gprs[29];
+            uint64_t fp;
+            uint64_t lr;
+            uint64_t sp;
+        };
+    };
+    uint64_t pc;
+    uint64_t module_base;
+    uint32_t pstate;
+    uint32_t afsr0;
+    uint32_t afsr1;
+    uint32_t esr;
+    uint64_t far;
+    uint64_t report_identifier; /* Normally just system tick. */
+    uint64_t stack_trace_size;
+    uint64_t stack_dump_size;
+    uint64_t stack_trace[AMS_FATAL_ERROR_MAX_STACKTRACE];
+    uint8_t stack_dump[AMS_FATAL_ERROR_MAX_STACKDUMP];
+} atmosphere_fatal_error_ctx;
+
+/* "AFE1" */
+#define ATMOSPHERE_REBOOT_TO_FATAL_MAGIC 0x31454641
+/* "AFE0" */
+#define ATMOSPHERE_REBOOT_TO_FATAL_MAGIC_0 0x30454641
+
+#define ATMOSPHERE_FATAL_ERROR_ADDR 0x4003E000
+#define ATMOSPHERE_FATAL_ERROR_CONTEXT ((volatile atmosphere_fatal_error_ctx *)(ATMOSPHERE_FATAL_ERROR_ADDR))
+
 void __attribute__((noreturn)) fatal_abort(enum FatalReason abortReason);