Add 6.2.0 exosphere support

And refactor it to its own file.

Makefile

@@ -27,6 +27,7 @@ OBJS = $(addprefix $(BUILD)/$(TARGET)/, \
 	heap.o \
 	hos.o \
 	hos_config.o \
+	secmon_exo.o \
 	i2c.o \
 	kfuse.o \
 	bq24193.o \

bootloader/hos/hos.c

@@ -22,6 +22,7 @@
 
 #include "hos.h"
 #include "hos_config.h"
+#include "secmon_exo.h"
 #include "../config/config.h"
 #include "../gfx/di.h"
 #include "../mem/heap.h"
@@ -49,9 +50,6 @@ extern void sd_unmount();
 //#define DPRINTF(...) gfx_printf(&gfx_con, __VA_ARGS__)
 #define DPRINTF(...)
 
-// Exosphère magic "XBC0".
-#define MAGIC_EXOSPHERE 0x30434258
-
 static const u8 keyblob_keyseeds[][0x10] = {
 	{ 0xDF, 0x20, 0x6F, 0x59, 0x44, 0x54, 0xEF, 0xDC, 0x70, 0x74, 0x48, 0x3B, 0x0D, 0xED, 0x9F, 0xD3 }, //1.0.0
 	{ 0x0C, 0x25, 0x61, 0x5D, 0x68, 0x4C, 0xEB, 0x42, 0x1C, 0x23, 0x79, 0xEA, 0x82, 0x25, 0x12, 0xAC }, //3.0.0
@@ -358,9 +356,6 @@ static void _free_launch_components(launch_ctxt_t *ctxt)
 
 int hos_launch(ini_sec_t *cfg)
 {
-	int bootStateDramPkg2 = 0;
-	int bootStatePkg2Continue = 0;
-	int exoFwNumber = 0;
 	launch_ctxt_t ctxt;
 	tsec_ctxt_t tsec_ctxt;
 
@@ -466,7 +461,7 @@ int hos_launch(ini_sec_t *cfg)
 				for (u32 i = 0; kernel_patchset[i].id != 0xFFFFFFFF; i++)
 				{
 					if ((ctxt.svcperm && kernel_patchset[i].id == SVC_VERIFY_DS)
-					|| (ctxt.debugmode && kernel_patchset[i].id == DEBUG_MODE_EN)
+					|| (ctxt.debugmode && kernel_patchset[i].id == DEBUG_MODE_EN && !(ctxt.atmosphere && ctxt.secmon))
 					|| (ctxt.atmosphere && kernel_patchset[i].id == ATM_GEN_PATCH))
 						*(vu32 *)(ctxt.kernel + kernel_patchset[i].off) = kernel_patchset[i].val;
 					else if (ctxt.atmosphere && kernel_patchset[i].id == ATM_ARR_PATCH)
@@ -508,17 +503,13 @@ int hos_launch(ini_sec_t *cfg)
 	se_aes_key_clear(8);
 	se_aes_key_clear(11);
 
-	// Final per firmware configuration.
+	// Finalize per firmware keys.
+	int bootStateDramPkg2 = 0;
+	int bootStatePkg2Continue = 0;
+	
 	switch (ctxt.pkg1_id->kb)
 	{
 	case KB_FIRMWARE_VERSION_100_200:
-		if (!exoFwNumber)
-		{
-			if (!strcmp(ctxt.pkg1_id->id, "20161121183008"))
-				exoFwNumber = 1;
-			else
-				exoFwNumber = 2;
-		}
 	case KB_FIRMWARE_VERSION_300:
 	case KB_FIRMWARE_VERSION_301:
 		if (ctxt.pkg1_id->kb == KB_FIRMWARE_VERSION_300)
@@ -529,23 +520,15 @@ int hos_launch(ini_sec_t *cfg)
 		se_key_acc_ctrl(13, 0xFF);
 		bootStateDramPkg2 = 2;
 		bootStatePkg2Continue = 3;
-		if (!exoFwNumber)
-			exoFwNumber = 3;
 		break;
 	case KB_FIRMWARE_VERSION_400:
-		if (!exoFwNumber)
-			exoFwNumber = 4;
 	case KB_FIRMWARE_VERSION_500:
-		if (!exoFwNumber)
-			exoFwNumber = 5;
 	case KB_FIRMWARE_VERSION_600:
-	default:
 		se_key_acc_ctrl(12, 0xFF);
 		se_key_acc_ctrl(15, 0xFF);
+	case KB_FIRMWARE_VERSION_620:
 		bootStateDramPkg2 = 2;
 		bootStatePkg2Continue = 4;
-		if (!exoFwNumber)
-			exoFwNumber = 6;
 		break;
 	}
 
@@ -564,30 +547,20 @@ int hos_launch(ini_sec_t *cfg)
 	}
 	free(bootConfigBuf);
 
-	// Config Exosphère if booting Atmosphère.
+	// Config Exosphère if booting full Atmosphère.
-	if (ctxt.atmosphere)
+	if (ctxt.atmosphere && ctxt.secmon)
-	{
+		config_exosphere(ctxt.pkg1_id->id, ctxt.pkg1_id->kb, ctxt.debugmode);
-		vu32 *mb_exo_magic = (vu32 *)0x40002E40;
-		vu32 *mb_exo_fw_no = (vu32 *)0x40002E44;
-
-		*mb_exo_magic = MAGIC_EXOSPHERE;
-		*mb_exo_fw_no = exoFwNumber;
-	}
 
 	// Finalize MC carveout.
 	if (ctxt.pkg1_id->kb <= KB_FIRMWARE_VERSION_301)
 		mc_config_carveout();
 
-	// Lock SE before starting 'SecureMonitor' if < 6.2.0, otherwise finalize 6.2.0 keygen and reset sysctr0 counters.
+	// Lock SE before starting 'SecureMonitor' if < 6.2.0, otherwise lock bootrom and ipatches.
-	if (ctxt.pkg1_id->kb <= KB_FIRMWARE_VERSION_600)
+	_se_lock(ctxt.pkg1_id->kb <= KB_FIRMWARE_VERSION_600);
-		_se_lock(true);
+
-	else
-	{
-		// Lock bootrom and ipatches only.
-		_se_lock(false);
 	// Reset sysctr0 counters.
+	if (kb >= KB_FIRMWARE_VERSION_620)
 		_sysctr0_reset();
-	}
 
 	// Free allocated memory.
 	ini_free_section(cfg);

bootloader/hos/secmon_exo.c

@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2018 CTCaer
+ *
+ * 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/>.
+ */
+
+#include <string.h>
+
+#include "hos.h"
+#include "../utils/types.h"
+
+// Exosphère mailbox defines.
+#define EXO_MAGIC_ADDR 0x40002E40
+#define  EXO_MAGIC_VAL     0x31434258
+#define EXO_FWNO_ADDR  0x40002E44
+#define EXO_FLAGS_ADDR 0x40002E48
+#define  EXO_FLAG_620_KGN  (1 << 0)
+#define  EXO_FLAG_DBG_PRIV (1 << 1)
+#define  EXO_FLAG_DBG_USER (1 << 2)
+
+void config_exosphere(const char *id, u32 kb, bool debug)
+{
+	u32 exoFwNo = 0;
+	u32 exoFlags = 0;
+
+	vu32 *mb_exo_magic = (vu32 *)EXO_MAGIC_ADDR;
+	vu32 *mb_exo_fw_no = (vu32 *)EXO_FWNO_ADDR;
+	vu32 *mb_exo_flags = (vu32 *)EXO_FLAGS_ADDR;
+
+	switch (kb)
+	{
+	case KB_FIRMWARE_VERSION_100_200:
+		if (!strcmp(id, "20161121183008"))
+			exoFwNo = 1;
+		else
+			exoFwNo = 2;
+		break;
+	case KB_FIRMWARE_VERSION_300:
+		exoFwNo = 3;
+		break;
+	default:
+		exoFwNo = kb + 1;
+		break;
+	}
+
+	if (kb >= KB_FIRMWARE_VERSION_620)
+		exoFlags |= EXO_FLAG_620_KGN;
+
+	if (debug)
+		exoFlags |= EXO_FLAG_DBG_PRIV | EXO_FLAG_DBG_USER;
+
+	// Set mailbox values.
+	*mb_exo_magic = EXO_MAGIC_VAL;
+	*mb_exo_fw_no = exoFwNo;
+	*mb_exo_flags = exoFlags;
+}

bootloader/hos/secmon_exo.h

@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2018 CTCaer
+ *
+ * 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 _SECMON_EXO_H_
+#define _SECMON_EXO_H_
+
+#include "../utils/types.h"
+
+void config_exosphere(const char *id, u32 kb, bool debug);
+
+#endif