fs.mitm: skeleton the use of special allocation in romfs build

docs/changelog.md

@@ -1,15 +1,4 @@
 # Changelog
-## 1.5.3
-+ Support was added for 16.0.3.
-+ Atmosphère was updated to use GCC 13/newlib (latest devkitA64/devkitARM releases).
-  + **Please note**: This introduces a known issue, which is currently being worked on.
-    + As you may recall from the 1.4.1 changelog, Fire Emblem: Engage requires enormous amounts of memory to support using layeredfs mods with the game.
-    + Latest GCC/newlib slightly increases malloc overhead size, which makes the previous memory increase insufficient.
-    + A general-case solution to this is in the works, which should hopefully fix the problem in a way that doesn't jinx me for the future.
-+ A number of minor issues were fixed and improvements were made, including:
-  + An issue was fixed that caused system font replacement to not work on 16.0.0+.
-  + An minor accuracy issue was addressed in mesosphere's management of certain memory ranges; this issue would have had zero visible impact to the end-user.
-+ General system stability improvements to enhance the user's experience.
 ## 1.5.2
 + A homebrew application (`haze`) was added for performing USB file transfer (with thanks to @liamwhite for both design and implementation).
   + `haze` is included with atmosphère, and provides access to the SD card via the PTP/MTP protocol.

emummc/.gitrepo

@@ -6,7 +6,7 @@
 [subrepo]
 	remote = https://github.com/m4xw/emummc
 	branch = develop
-	commit = 30205111ee375bef96f0f76cb6a3130a2f0fc85c
+	commit = bba1f1fb65f75721caf6d023a35d75d3c9aafd0f
-	parent = 81e9154a52a976f85317bddd0131426599d26a62
+	parent = 1ab8b234447864503e21c600681219a96962e6c1
 	method = merge
 	cmdver = 0.4.1

emummc/README.md

@@ -2,7 +2,7 @@
 *A SDMMC driver replacement for Nintendo's Filesystem Services, by **m4xw***  
 
 ### Supported Horizon Versions
-**1.0.0 - 16.0.3**
+**1.0.0 - 16.0.0**
 
 ## Features
 * Arbitrary SDMMC backend selection  

emummc/source/FS/FS_offsets.c

@@ -65,8 +65,6 @@
 #include "offsets/1500_exfat.h"
 #include "offsets/1600.h"
 #include "offsets/1600_exfat.h"
-#include "offsets/1603.h"
-#include "offsets/1603_exfat.h"
 #include "../utils/fatal.h"
 
 #define GET_OFFSET_STRUCT_NAME(vers) g_offsets##vers
@@ -143,8 +141,6 @@ DEFINE_OFFSET_STRUCT(_1500);
 DEFINE_OFFSET_STRUCT(_1500_EXFAT);
 DEFINE_OFFSET_STRUCT(_1600);
 DEFINE_OFFSET_STRUCT(_1600_EXFAT);
-DEFINE_OFFSET_STRUCT(_1603);
-DEFINE_OFFSET_STRUCT(_1603_EXFAT);
 
 const fs_offsets_t *get_fs_offsets(enum FS_VER version) {
     switch (version) {
@@ -246,10 +242,6 @@ const fs_offsets_t *get_fs_offsets(enum FS_VER version) {
             return &(GET_OFFSET_STRUCT_NAME(_1600));
         case FS_VER_16_0_0_EXFAT:
             return &(GET_OFFSET_STRUCT_NAME(_1600_EXFAT));
-        case FS_VER_16_0_3:
-            return &(GET_OFFSET_STRUCT_NAME(_1603));
-        case FS_VER_16_0_3_EXFAT:
-            return &(GET_OFFSET_STRUCT_NAME(_1603_EXFAT));
         default:
             fatal_abort(Fatal_UnknownVersion);
     }

emummc/source/FS/FS_versions.h

@@ -95,9 +95,6 @@ enum FS_VER
     FS_VER_16_0_0,
     FS_VER_16_0_0_EXFAT,
 
-    FS_VER_16_0_3,
-    FS_VER_16_0_3_EXFAT,
-
     FS_VER_MAX,
 };
 

emummc/source/FS/offsets/1603.h

@@ -1,59 +0,0 @@
-/*
- * 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_1603_H__
-#define __FS_1603_H__
-
-// Accessor vtable getters
-#define FS_OFFSET_1603_SDMMC_ACCESSOR_GC   0x1862F0
-#define FS_OFFSET_1603_SDMMC_ACCESSOR_SD   0x187F70
-#define FS_OFFSET_1603_SDMMC_ACCESSOR_NAND 0x1867B0
-
-// Hooks
-#define FS_OFFSET_1603_SDMMC_WRAPPER_READ  0x182240
-#define FS_OFFSET_1603_SDMMC_WRAPPER_WRITE 0x1822A0
-#define FS_OFFSET_1603_RTLD                0x269B0
-#define FS_OFFSET_1603_RTLD_DESTINATION    ((uintptr_t)(INT64_C(-0x3C)))
-
-#define FS_OFFSET_1603_CLKRST_SET_MIN_V_CLK_RATE 0x1A2D80
-
-// Misc funcs
-#define FS_OFFSET_1603_LOCK_MUTEX          0x17B780
-#define FS_OFFSET_1603_UNLOCK_MUTEX        0x17B7D0
-
-#define FS_OFFSET_1603_SDMMC_WRAPPER_CONTROLLER_OPEN  0x182200
-#define FS_OFFSET_1603_SDMMC_WRAPPER_CONTROLLER_CLOSE 0x182220
-
-// Misc Data
-#define FS_OFFSET_1603_SD_MUTEX            0xFFB3F0
-#define FS_OFFSET_1603_NAND_MUTEX          0xFF6B58
-#define FS_OFFSET_1603_ACTIVE_PARTITION    0xFF6B98
-#define FS_OFFSET_1603_SDMMC_DAS_HANDLE    0xFDC8B0
-
-// NOPs
-#define FS_OFFSET_1603_SD_DAS_INIT         0x258D4
-
-// Nintendo Paths
-#define FS_OFFSET_1603_NINTENDO_PATHS \
-{ \
-	{.opcode_reg = 3, .adrp_offset = 0x00063B98, .add_rel_offset = 0x00000004}, \
-	{.opcode_reg = 3, .adrp_offset = 0x00070DBC, .add_rel_offset = 0x00000004}, \
-	{.opcode_reg = 4, .adrp_offset = 0x0007795C, .add_rel_offset = 0x00000004}, \
-	{.opcode_reg = 4, .adrp_offset = 0x0008A7A4, .add_rel_offset = 0x00000004}, \
-	{.opcode_reg = 0, .adrp_offset = 0, .add_rel_offset = 0}, \
-}
-
-#endif // __FS_1603_H__

emummc/source/FS/offsets/1603_exfat.h

@@ -1,59 +0,0 @@
-/*
- * 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_1603_EXFAT_H__
-#define __FS_1603_EXFAT_H__
-
-// Accessor vtable getters
-#define FS_OFFSET_1603_EXFAT_SDMMC_ACCESSOR_GC   0x190FD0
-#define FS_OFFSET_1603_EXFAT_SDMMC_ACCESSOR_SD   0x192C50
-#define FS_OFFSET_1603_EXFAT_SDMMC_ACCESSOR_NAND 0x191490
-
-// Hooks
-#define FS_OFFSET_1603_EXFAT_SDMMC_WRAPPER_READ  0x18CF20
-#define FS_OFFSET_1603_EXFAT_SDMMC_WRAPPER_WRITE 0x18CF80
-#define FS_OFFSET_1603_EXFAT_RTLD                0x269B0
-#define FS_OFFSET_1603_EXFAT_RTLD_DESTINATION    ((uintptr_t)(INT64_C(-0x3C)))
-
-#define FS_OFFSET_1603_EXFAT_CLKRST_SET_MIN_V_CLK_RATE 0x1ADA60
-
-// Misc funcs
-#define FS_OFFSET_1603_EXFAT_LOCK_MUTEX          0x186460
-#define FS_OFFSET_1603_EXFAT_UNLOCK_MUTEX        0x1864B0
-
-#define FS_OFFSET_1603_EXFAT_SDMMC_WRAPPER_CONTROLLER_OPEN  0x18CEE0
-#define FS_OFFSET_1603_EXFAT_SDMMC_WRAPPER_CONTROLLER_CLOSE 0x18CF00
-
-// Misc Data
-#define FS_OFFSET_1603_EXFAT_SD_MUTEX            0x100D3F0
-#define FS_OFFSET_1603_EXFAT_NAND_MUTEX          0x1008B58
-#define FS_OFFSET_1603_EXFAT_ACTIVE_PARTITION    0x1008B98
-#define FS_OFFSET_1603_EXFAT_SDMMC_DAS_HANDLE    0xFE98B0
-
-// NOPs
-#define FS_OFFSET_1603_EXFAT_SD_DAS_INIT         0x258D4
-
-// Nintendo Paths
-#define FS_OFFSET_1603_EXFAT_NINTENDO_PATHS \
-{ \
-	{.opcode_reg = 3, .adrp_offset = 0x00063B98, .add_rel_offset = 0x00000004}, \
-	{.opcode_reg = 3, .adrp_offset = 0x00070DBC, .add_rel_offset = 0x00000004}, \
-	{.opcode_reg = 4, .adrp_offset = 0x0007795C, .add_rel_offset = 0x00000004}, \
-	{.opcode_reg = 4, .adrp_offset = 0x0008A7A4, .add_rel_offset = 0x00000004}, \
-	{.opcode_reg = 0, .adrp_offset = 0, .add_rel_offset = 0}, \
-}
-
-#endif // __FS_1603_EXFAT_H__

fusee/program/source/fusee_stratosphere.cpp

@@ -162,9 +162,6 @@ namespace ams::nxboot {
             FsVersion_16_0_0,
             FsVersion_16_0_0_Exfat,
 
-            FsVersion_16_0_3,
-            FsVersion_16_0_3_Exfat,
-
             FsVersion_Count,
         };
 
@@ -242,9 +239,6 @@ namespace ams::nxboot {
 
             { 0x56, 0xE8, 0x56, 0x56, 0x6C, 0x38, 0xD8, 0xBE }, /* FsVersion_16_0_0 */
             { 0xCF, 0xAB, 0x45, 0x0C, 0x2C, 0x53, 0x9D, 0xA9 }, /* FsVersion_16_0_0_Exfat */
-
-            { 0x39, 0xEE, 0x1F, 0x1E, 0x0E, 0xA7, 0x32, 0x5D }, /* FsVersion_16_0_3 */
-            { 0x62, 0xC6, 0x5E, 0xFD, 0x9A, 0xBF, 0x7C, 0x43 }, /* FsVersion_16_0_3_Exfat */
         };
 
         const InitialProcessBinaryHeader *FindInitialProcessBinary(const pkg2::Package2Header *header, const u8 *data, ams::TargetFirmware target_firmware) {
@@ -662,14 +656,6 @@ namespace ams::nxboot {
                     AddPatch(fs_meta, 0x1913B9, NogcPatch0, sizeof(NogcPatch0));
                     AddPatch(fs_meta, 0x16B950, NogcPatch1, sizeof(NogcPatch1));
                     break;
-                case FsVersion_16_0_3:
-                    AddPatch(fs_meta, 0x186729, NogcPatch0, sizeof(NogcPatch0));
-                    AddPatch(fs_meta, 0x160CC0, NogcPatch1, sizeof(NogcPatch1));
-                    break;
-                case FsVersion_16_0_3_Exfat:
-                    AddPatch(fs_meta, 0x191409, NogcPatch0, sizeof(NogcPatch0));
-                    AddPatch(fs_meta, 0x16B9A0, NogcPatch1, sizeof(NogcPatch1));
-                    break;
                 default:
                     break;
             }

libraries/.gitrepo

@@ -6,7 +6,7 @@
 [subrepo]
 	remote = https://github.com/Atmosphere-NX/Atmosphere-libs
 	branch = master
-	commit = cd0fc2c1d5728ec45414aaaa6efa28c269695992
+	commit = ecc8b18111730acef0a353f6f61c45c1f143a793
-	parent = 8ec7c096d04e6f9586be2cb785840cd482d4b900
+	parent = d8aed7de6d39dd29b75e34f24d376decfb77a5b4
 	method = merge
 	cmdver = 0.4.1

libraries/libstratosphere/include/stratosphere/hos/hos_types.hpp

@@ -78,7 +78,6 @@ namespace ams::hos {
         Version_16_0_0  = ::ams::TargetFirmware_16_0_0,
         Version_16_0_1  = ::ams::TargetFirmware_16_0_1,
         Version_16_0_2  = ::ams::TargetFirmware_16_0_2,
-        Version_16_0_3  = ::ams::TargetFirmware_16_0_3,
 
         Version_Current = ::ams::TargetFirmware_Current,
 

libraries/libstratosphere/include/stratosphere/pm/impl/pm_shell_interface.hpp

@@ -30,8 +30,7 @@
     AMS_SF_METHOD_INFO(C, H,  7, Result, BoostSystemMemoryResourceLimit,      (u64 boost_size),                                                                    (boost_size))                                     \
     AMS_SF_METHOD_INFO(C, H,  8, Result, BoostApplicationThreadResourceLimit, (),                                                                                  ())                                               \
     AMS_SF_METHOD_INFO(C, H,  9, void,   GetBootFinishedEventHandle,          (sf::OutCopyHandle out),                                                             (out),                        hos::Version_8_0_0) \
-    AMS_SF_METHOD_INFO(C, H, 10,    Result, BoostSystemThreadResourceLimit,                  (),                                                                                  ())                                               \
+    AMS_SF_METHOD_INFO(C, H, 10, Result, BoostSystemThreadResourceLimit,      (),                                                                                  ())
-    AMS_SF_METHOD_INFO(C, H, 65000, Result, AtmosphereBoostSystemMemoryResourceLimitForMitm, (u64 boost_size),                                                                    (boost_size))
 
 AMS_SF_DEFINE_INTERFACE(ams::pm::impl, IShellInterface, AMS_PM_I_SHELL_INTERFACE_INTERFACE_INFO, 0x387D60C0)
 
@@ -45,8 +44,6 @@ AMS_SF_DEFINE_INTERFACE(ams::pm::impl, IShellInterface, AMS_PM_I_SHELL_INTERFACE
     AMS_SF_METHOD_INFO(C, H, 6, Result, ClearExceptionOccurred,          (os::ProcessId process_id),                                                          (process_id))                                     \
     AMS_SF_METHOD_INFO(C, H, 7, void,   NotifyBootFinished,              (),                                                                                  ())                                               \
     AMS_SF_METHOD_INFO(C, H, 8, Result, GetApplicationProcessIdForShell, (sf::Out<os::ProcessId> out),                                                        (out))                                            \
-    AMS_SF_METHOD_INFO(C, H, 9,     Result, BoostSystemMemoryResourceLimit,                  (u64 boost_size),                                                                    (boost_size),                 hos::Version_4_0_0) \
+    AMS_SF_METHOD_INFO(C, H, 9, Result, BoostSystemMemoryResourceLimit,  (u64 boost_size),                                                                    (boost_size),                 hos::Version_4_0_0)
-    AMS_SF_METHOD_INFO(C, H, 10,    Result, BoostSystemThreadResourceLimit,                  (),                                                                                  ())                                               \
-    AMS_SF_METHOD_INFO(C, H, 65000, Result, AtmosphereBoostSystemMemoryResourceLimitForMitm, (u64 boost_size),                                                                    (boost_size))
 
 AMS_SF_DEFINE_INTERFACE(ams::pm::impl, IDeprecatedShellInterface, AMS_PM_I_DEPRECATED_SHELL_INTERFACE_INTERFACE_INFO, 0x387D60C0)

libraries/libstratosphere/include/stratosphere/pm/pm_shell_api.hpp

@@ -32,6 +32,4 @@ namespace ams::pm::shell {
     Result BoostApplicationThreadResourceLimit();
     Result BoostSystemThreadResourceLimit();
 
-    Result AtmosphereBoostSystemMemoryResourceLimitForMitm(u64 size);
-
 }

libraries/libstratosphere/source/pm/pm_ams.os.horizon.c

@@ -90,9 +90,3 @@ Result pmdmntAtmosphereGetCurrentLimitInfo(u64 *out_cur, u64 *out_lim, u32 group
 
     return rc;
 }
-
-Result pmshellAtmosphereBoostSystemMemoryResourceLimitForMitm(u64 size) {
-    return serviceDispatchIn(pmshellGetServiceSession(), 65000, size);
-}
-
-

libraries/libstratosphere/source/pm/pm_ams.os.horizon.h

@@ -26,8 +26,6 @@ Result pminfoAtmosphereGetProcessInfo(NcmProgramLocation *loc_out, CfgOverrideSt
 Result pmdmntAtmosphereGetProcessInfo(Handle *out, NcmProgramLocation *loc_out, CfgOverrideStatus *status_out, u64 pid);
 Result pmdmntAtmosphereGetCurrentLimitInfo(u64 *out_cur, u64 *out_lim, u32 group, u32 resource);
 
-Result pmshellAtmosphereBoostSystemMemoryResourceLimitForMitm(u64 size);
-
 #ifdef __cplusplus
 }
 #endif

libraries/libstratosphere/source/pm/pm_shell_api.cpp

@@ -14,7 +14,6 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #include <stratosphere.hpp>
-#include "pm_ams.os.horizon.h"
 
 namespace ams::pm::shell {
 
@@ -58,10 +57,6 @@ namespace ams::pm::shell {
     Result BoostSystemThreadResourceLimit() {
         R_RETURN(::pmshellBoostSystemThreadResourceLimit());
     }
-
-    Result AtmosphereBoostSystemMemoryResourceLimitForMitm(u64 size) {
-       R_RETURN(pmshellAtmosphereBoostSystemMemoryResourceLimitForMitm(size));
-    }
     #endif
 
 }

libraries/libvapours/include/vapours/ams/ams_api_version.h

@@ -17,10 +17,10 @@
 
 #define ATMOSPHERE_RELEASE_VERSION_MAJOR    1
 #define ATMOSPHERE_RELEASE_VERSION_MINOR    5
-#define ATMOSPHERE_RELEASE_VERSION_MICRO    3
+#define ATMOSPHERE_RELEASE_VERSION_MICRO    2
 
 #define ATMOSPHERE_RELEASE_VERSION ATMOSPHERE_RELEASE_VERSION_MAJOR, ATMOSPHERE_RELEASE_VERSION_MINOR, ATMOSPHERE_RELEASE_VERSION_MICRO
 
 #define ATMOSPHERE_SUPPORTED_HOS_VERSION_MAJOR 16
 #define ATMOSPHERE_SUPPORTED_HOS_VERSION_MINOR 0
-#define ATMOSPHERE_SUPPORTED_HOS_VERSION_MICRO 3
+#define ATMOSPHERE_SUPPORTED_HOS_VERSION_MICRO 2

libraries/libvapours/include/vapours/ams/ams_target_firmware.h

@@ -76,9 +76,8 @@
 #define ATMOSPHERE_TARGET_FIRMWARE_16_0_0 ATMOSPHERE_TARGET_FIRMWARE(16,  0,  0)
 #define ATMOSPHERE_TARGET_FIRMWARE_16_0_1 ATMOSPHERE_TARGET_FIRMWARE(16,  0,  1)
 #define ATMOSPHERE_TARGET_FIRMWARE_16_0_2 ATMOSPHERE_TARGET_FIRMWARE(16,  0,  2)
-#define ATMOSPHERE_TARGET_FIRMWARE_16_0_3 ATMOSPHERE_TARGET_FIRMWARE(16,  0,  3)
 
-#define ATMOSPHERE_TARGET_FIRMWARE_CURRENT ATMOSPHERE_TARGET_FIRMWARE_16_0_3
+#define ATMOSPHERE_TARGET_FIRMWARE_CURRENT ATMOSPHERE_TARGET_FIRMWARE_16_0_2
 
 #define ATMOSPHERE_TARGET_FIRMWARE_MIN ATMOSPHERE_TARGET_FIRMWARE(0, 0, 0)
 #define ATMOSPHERE_TARGET_FIRMWARE_MAX ATMOSPHERE_TARGET_FIRMWARE_CURRENT
@@ -147,7 +146,6 @@ namespace ams {
         TargetFirmware_16_0_0  = ATMOSPHERE_TARGET_FIRMWARE_16_0_0,
         TargetFirmware_16_0_1  = ATMOSPHERE_TARGET_FIRMWARE_16_0_1,
         TargetFirmware_16_0_2  = ATMOSPHERE_TARGET_FIRMWARE_16_0_2,
-        TargetFirmware_16_0_3  = ATMOSPHERE_TARGET_FIRMWARE_16_0_3,
 
         TargetFirmware_Current = ATMOSPHERE_TARGET_FIRMWARE_CURRENT,
 

stratosphere/ams_mitm/source/fs_mitm/fs_mitm_service.hpp

@@ -54,8 +54,7 @@ namespace ams::mitm::fs {
                 }
 
                 /* We want to mitm sdb, to support sd-romfs redirection of common system archives (like system font, etc). */
-                /* NOTE: In 16.0.0+, this was moved to glue. */
+                if (program_id == ncm::SystemProgramId::Sdb) {
-                if (program_id == ncm::SystemProgramId::Sdb || program_id == ncm::SystemProgramId::Glue) {
                     return true;
                 }
 

stratosphere/pm/source/impl/pm_process_manager.cpp

@@ -713,8 +713,4 @@ namespace ams::pm::impl {
         R_RETURN(resource::GetResourceLimitValues(out_cur_val, out_lim_val, static_cast<ResourceLimitGroup>(group), static_cast<svc::LimitableResource>(resource)));
     }
 
-    Result BoostSystemMemoryResourceLimitForMitm(u64 boost_size) {
-        R_RETURN(resource::BoostSystemMemoryResourceLimitForMitm(boost_size));
-    }
-
 }

stratosphere/pm/source/impl/pm_process_manager.hpp

@@ -55,6 +55,5 @@ namespace ams::pm::impl {
     Result GetAppletCurrentResourceLimitValues(pm::ResourceLimitValues *out);
     Result GetAppletPeakResourceLimitValues(pm::ResourceLimitValues *out);
     Result AtmosphereGetCurrentLimitInfo(s64 *out_cur_val, s64 *out_lim_val, u32 group, u32 resource);
-    Result BoostSystemMemoryResourceLimitForMitm(u64 boost_size);
 
 }

stratosphere/pm/source/impl/pm_resource_manager.cpp

@@ -52,15 +52,8 @@ namespace ams::pm::resource {
         constinit os::SdkMutex g_resource_limit_lock;
         constinit os::NativeHandle g_resource_limit_handles[ResourceLimitGroup_Count];
         constinit spl::MemoryArrangement g_memory_arrangement = spl::MemoryArrangement_Standard;
-        constinit u64 g_extra_threads_available[ResourceLimitGroup_Count];
-
-        constinit os::SdkMutex g_system_memory_boost_lock;
         constinit u64 g_system_memory_boost_size = 0;
-        constinit u64 g_system_memory_boost_size_for_mitm = 0;
+        constinit u64 g_extra_threads_available[ResourceLimitGroup_Count];
-
-        ALWAYS_INLINE u64 GetCurrentSystemMemoryBoostSize() {
-            return g_system_memory_boost_size + g_system_memory_boost_size_for_mitm;
-        }
 
         constinit u64 g_resource_limits[ResourceLimitGroup_Count][svc::LimitableResource_Count] = {
             [ResourceLimitGroup_System] = {
@@ -227,47 +220,6 @@ namespace ams::pm::resource {
             R_SUCCEED();
         }
 
-        Result BoostSystemMemoryResourceLimitLocked(u64 normal_boost, u64 mitm_boost) {
-            /* Check pre-conditions. */
-            AMS_ASSERT(g_system_memory_boost_lock.IsLockedByCurrentThread());
-
-            /* Determine total boost. */
-            const u64 boost_size = normal_boost + mitm_boost;
-
-            /* Don't allow all application memory to be taken away. */
-            R_UNLESS(boost_size <= g_memory_resource_limits[g_memory_arrangement][ResourceLimitGroup_Application], pm::ResultInvalidSize());
-
-            const u64 new_app_size = g_memory_resource_limits[g_memory_arrangement][ResourceLimitGroup_Application] - boost_size;
-            {
-                std::scoped_lock lk(g_resource_limit_lock);
-
-                if (hos::GetVersion() >= hos::Version_5_0_0) {
-                    /* Starting in 5.0.0, PM does not allow for only one of the sets to fail. */
-                    if (boost_size < GetCurrentSystemMemoryBoostSize()) {
-                        R_TRY(svc::SetUnsafeLimit(boost_size));
-                        R_ABORT_UNLESS(SetMemoryResourceLimitLimitValue(ResourceLimitGroup_Application, new_app_size));
-                    } else {
-                        R_TRY(SetMemoryResourceLimitLimitValue(ResourceLimitGroup_Application, new_app_size));
-                        R_ABORT_UNLESS(svc::SetUnsafeLimit(boost_size));
-                    }
-                } else {
-                    const u64 new_sys_size = g_memory_resource_limits[g_memory_arrangement][ResourceLimitGroup_System] + boost_size;
-                    if (boost_size < GetCurrentSystemMemoryBoostSize()) {
-                        R_TRY(SetMemoryResourceLimitLimitValue(ResourceLimitGroup_System,      new_sys_size));
-                        R_TRY(SetMemoryResourceLimitLimitValue(ResourceLimitGroup_Application, new_app_size));
-                    } else {
-                        R_TRY(SetMemoryResourceLimitLimitValue(ResourceLimitGroup_Application, new_app_size));
-                        R_TRY(SetMemoryResourceLimitLimitValue(ResourceLimitGroup_System,      new_sys_size));
-                    }
-                }
-
-                g_system_memory_boost_size         = normal_boost;
-                g_system_memory_boost_size_for_mitm = mitm_boost;
-            }
-
-            R_SUCCEED();
-        }
-
     }
 
     /* Resource API. */
@@ -400,19 +352,37 @@ namespace ams::pm::resource {
     }
 
     Result BoostSystemMemoryResourceLimit(u64 boost_size) {
-        /* Ensure only one boost change happens at a time. */
+        /* Don't allow all application memory to be taken away. */
-        std::scoped_lock lk(g_system_memory_boost_lock);
+        R_UNLESS(boost_size <= g_memory_resource_limits[g_memory_arrangement][ResourceLimitGroup_Application], pm::ResultInvalidSize());
 
-        /* Boost to the appropriate total amount. */
+        const u64 new_app_size = g_memory_resource_limits[g_memory_arrangement][ResourceLimitGroup_Application] - boost_size;
-        R_RETURN(BoostSystemMemoryResourceLimitLocked(boost_size, g_system_memory_boost_size_for_mitm));
+        {
+            std::scoped_lock lk(g_resource_limit_lock);
+
+            if (hos::GetVersion() >= hos::Version_5_0_0) {
+                /* Starting in 5.0.0, PM does not allow for only one of the sets to fail. */
+                if (boost_size < g_system_memory_boost_size) {
+                    R_TRY(svc::SetUnsafeLimit(boost_size));
+                    R_ABORT_UNLESS(SetMemoryResourceLimitLimitValue(ResourceLimitGroup_Application, new_app_size));
+                } else {
+                    R_TRY(SetMemoryResourceLimitLimitValue(ResourceLimitGroup_Application, new_app_size));
+                    R_ABORT_UNLESS(svc::SetUnsafeLimit(boost_size));
+                }
+            } else {
+                const u64 new_sys_size = g_memory_resource_limits[g_memory_arrangement][ResourceLimitGroup_System] + boost_size;
+                if (boost_size < g_system_memory_boost_size) {
+                    R_TRY(SetMemoryResourceLimitLimitValue(ResourceLimitGroup_System,      new_sys_size));
+                    R_TRY(SetMemoryResourceLimitLimitValue(ResourceLimitGroup_Application, new_app_size));
+                } else {
+                    R_TRY(SetMemoryResourceLimitLimitValue(ResourceLimitGroup_Application, new_app_size));
+                    R_TRY(SetMemoryResourceLimitLimitValue(ResourceLimitGroup_System,      new_sys_size));
+                }
             }
 
-    Result BoostSystemMemoryResourceLimitForMitm(u64 boost_size) {
+            g_system_memory_boost_size = boost_size;
-        /* Ensure only one boost change happens at a time. */
+        }
-        std::scoped_lock lk(g_system_memory_boost_lock);
 
-        /* Boost to the appropriate total amount. */
+        R_SUCCEED();
-        R_RETURN(BoostSystemMemoryResourceLimitLocked(g_system_memory_boost_size, boost_size));
     }
 
     Result BoostApplicationThreadResourceLimit() {

stratosphere/pm/source/impl/pm_resource_manager.hpp

@@ -24,8 +24,6 @@ namespace ams::pm::resource {
     Result BoostApplicationThreadResourceLimit();
     Result BoostSystemThreadResourceLimit();
 
-    Result BoostSystemMemoryResourceLimitForMitm(u64 boost_size);
-
     os::NativeHandle GetResourceLimitHandle(ResourceLimitGroup group);
     os::NativeHandle GetResourceLimitHandle(const ldr::ProgramInfo *info);
 

stratosphere/pm/source/pm_shell_service.cpp

@@ -87,8 +87,4 @@ namespace ams::pm {
         R_RETURN(impl::BoostSystemThreadResourceLimit());
     }
 
-    Result ShellService::AtmosphereBoostSystemMemoryResourceLimitForMitm(u64 boost_size) {
-        R_RETURN(impl::BoostSystemMemoryResourceLimitForMitm(boost_size));
-    }
-
 }

stratosphere/pm/source/pm_shell_service.hpp

@@ -34,9 +34,6 @@ namespace ams::pm {
             Result BoostApplicationThreadResourceLimit();
             void   GetBootFinishedEventHandle(sf::OutCopyHandle out);
             Result BoostSystemThreadResourceLimit();
-
-            /* Atmosphere extension command implementations. */
-            Result AtmosphereBoostSystemMemoryResourceLimitForMitm(u64 boost_size);
     };
     static_assert(pm::impl::IsIShellInterface<ShellService>);