Merge cd6d129540 into 548b48b2a6

well, this sure is late, whoops

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,58 +0,0 @@
----
-name: Bug Report
-about: Something doesn't work correctly in Atmosphère.
-#assignees:
----
-
-## Bug Report
-
-[ If any section does not apply, replace its contents with "N/A". ]</br>
-[ Lines between [ ] (square brackets) should be removed before posting. ]</br>
-
-[ * ]</br>
-[ Note: If the bug or crash you encountered is related to; ]</br>
-[ - software used to make "backups", ]</br>
-[ - software explicitly distributed for piracy, etc ]</br>
-[ then contributors will not provide support for your issue and your issue will be closed. ]</br>
-
-### What's the issue you encountered?
-
-[ Describe the issue in detail and what you were doing beforehand. ]</br>
-[ Did you make any changes related to Atmosphère itself? ]</br>
-[ If so, make sure to include details relating to what exactly you changed. ]</br>
-
-### How can the issue be reproduced?
-
-[ * ]</br>
-[ Include a detailed step by step process for recreating your issue. ]</br>
-
-### Crash Report
-
-[ Crash reports can be found under ``/atmosphere/crash_reports``. ]</br>
-[ If your issue caused Atmosphère to crash, include the crash report(s) by creating a [gist](https://gist.github.com/) and pasting the link here. ]</br>
-[ If you don't include a crash report in instances of crash related issues, we will ask you one to provide one. ]</br>
-
-### System Firmware Version
-
-X.X.X</br>
-[ Replace X's with system firmware version at time of crash. ]</br>
-[ You can find your firmware version in the Settings -> System, under "System Update". ]</br>
-[ If it says "Update Pending", you can clear the pending update by rebooting to Maintenance Mode. ]</br>
-
-### Environment?
-
-- What bootloader (fusèe, hekate, etc) was Atmosphère launched by:
-- Official release or unofficial build: 
-  - [ Official release version x.x.x (or) unofficial build ]
-  - [ If using an unofficial build, include details on where/how you acquired the build. ] 
-     - [ Ex: Self-compilation ]
-     - [ Ex: Kosmos' distribution of Atmosphère ]
-- Do you have additional kips or sysmodules you're loading:
-- Homebrew software installed: [ * ]
-- EmuMMC or SysNAND:
-  - [ If using an EmuMMC, include whether it's partition-based or file-based. ]
-
-### Additional context?
-
-- Additional info about your environment:
-- [ Any other information relevant to your issue. ]

.github/ISSUE_TEMPLATE/bug_report.yaml

@@ -0,0 +1,67 @@
+name: Bug Report
+description: Something doesn't work correctly in Atmosphère.
+title: "[BUG] "
+body:
+- type: markdown
+  attributes:
+    value: |
+      Note: If the bug or crash you encountered is related to
+      - software used to make "backups"
+      - software explicitly distributed for piracy, etc.
+      
+      then contributors will not provide support for your issue and your issue will be closed.
+- type: textarea
+  attributes:
+    label: What's the issue you encountered?
+    description: |
+      Describe the issue in detail and what you were doing beforehand.
+      Did you make any changes related to Atmosphère itself?
+      If so, make sure to include details relating to what exactly you changed.
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: How can the issue be reproduced?
+    description: Include a detailed step by step process for recreating your issue.
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Crash Report
+    description: |
+      Crash reports can be found under ``/atmosphere/crash_reports``.
+      - If your issue caused Atmosphère to crash, include the crash report(s) by creating a [gist](https://gist.github.com/) and pasting the link here.
+      - If you don't include a crash report in instances of crash related issues, we will ask you one to provide one.
+  validations:
+    required: false
+- type: textarea
+  attributes:
+    label: System Firmware Version
+    description: |
+      Replace X's with system firmware version at time of crash.
+      You can find your firmware version in the Settings -> System, under "System Update".
+      If it says "Update Pending", you can clear the pending update by rebooting to Maintenance Mode.
+    placeholder: X.X.X
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Environment?
+    value: |
+      - What bootloader (fusée, hekate, etc) was Atmosphère launched by: 
+      - Official release or unofficial build: 
+        - If using an unofficial build, include details on where/how you acquired the build: 
+      - Do you have additional kips or sysmodules you're loading: 
+      - Homebrew software installed: 
+      - EmuMMC or SysMMC: 
+        - If using an EmuMMC, include whether it's partition-based or file-based: 
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Additional context?
+    value: |
+      - Additional info about your environment: 
+      - Any other information relevant to your issue: 
+  validations:
+    required: false

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,48 +0,0 @@
----
-name: Feature Request
-about: Suggest a new feature for Atmosphère.
-#assignees:
----
-
-## Feature Request
-
-[ If any section does not apply, replace its contents with "N/A". ]</br>
-[ If you do not have the information needed for a section, replace its contents with "Unknown". ]</br>
-[ Lines between [ ] (square brackets) are to be removed before posting. ]
-
-[ Please search for existing [feature requests](https://github.com/Atmosphere-NX/Atmosphere/issues?utf8=%E2%9C%93&q=is%3Aissue+label%3A%22features%2Ffeature-request%22) before you make your own request. ]</br>
-[ Duplicate requests will be marked as such and you will be referred to the original request. ]
-
-### What feature are you suggesting?
-#### Overview:
-- [ Include the basic, high-level concepts for this feature here. ]</br>
-
-#### Smaller Details: 
-- [ These may include specific methods of implementation etc. ]</br>
-
-#### Nature of Request:  
-[ Remove all that do not apply to your request. ]
-- Addition
-  - [ Ex: Addition of certain original features or features from other community projects. ]
-  - [ If you are suggesting porting features or including features from other projects, include what license they are distributed under and what, if any libraries those project use. ]
-- Change
-- Removal
-  - [Ex: Removal of certain features or implementation due to a specific issue/bug or because of low quality code, etc.]
-
-### What component do you feel this would best fit within?
-- [Fusée](https://github.com/Atmosphere-NX/Atmosphere#components)</br>
-  - Atmosphère's custom bootloader.</br>
-- [Exosphère](https://github.com/Atmosphere-NX/Atmosphere#components)</br>
-  - Fully-featured custom secure monitor.</br>
-- [Stratosphère](https://github.com/Atmosphere-NX/Atmosphere#components)</br>
-    - Custom system modules.</br>
-- [**Thermosphère**](https://github.com/Atmosphere-NX/Atmosphere#components)</br>
-  - Atmosphère's emuNAND implementation.</br>
-- [**Troposphère**](https://github.com/Atmosphere-NX/Atmosphere#components)</br>
-  - Application-level patches to the Horizon OS.</br>
-
-[ Note: **Bolded components are not implemented** or are still at the prototyping phase. ]
-
-### Why would this feature be useful?
-[ If this is a feature for an end-user, how does it benefit the end-user? ]</br>
-[ If this feature is for developers, what does it add to Atmosphère that did not already exist? ]</br>

.github/ISSUE_TEMPLATE/feature_request.yaml

@@ -0,0 +1,44 @@
+name: Feature Request
+description: Suggest a new feature for Atmosphère.
+title: "[FEATURE REQUEST] "
+body:
+- type: markdown
+  attributes:
+    value: |
+      Please search for [existing feature requests](https://github.com/Atmosphere-NX/Atmosphere/issues?utf8=%E2%9C%93&q=is%3Aissue+label%3A%22features%2Ffeature-request%22) before you make your own request.
+      Duplicate requests will be marked as such, and you will be referred to the original request.
+- type: textarea
+  attributes:
+    label: What feature are you suggesting?
+    description: Include the basic concepts for this feature here.
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Smaller details
+    description: These may include specific methods of implementation, etc.
+  validations:
+    required: false
+- type: textarea
+  attributes:
+    label: Nature of the request
+    description: |
+      Is this request an addition, a change, or a removal?
+
+      If you are suggesting porting features or including features from other projects, include what license they are distributed under, and what (if any) libraries those projects use.
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: What component do you feel this would best fit within?
+    description: See [here](https://github.com/Atmosphere-NX/Atmosphere#components) for more information.
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Why would this feature be useful?
+    description: |
+      - If this is a feature for an end-user, how does it benefit the end-user?
+      - If this feature is for developers, what does it add to Atmosphère that did not already exist?
+  validations:
+    required: true

libraries/libstratosphere/include/stratosphere/fssystem/fssystem_crypto_configuration.hpp

@@ -16,6 +16,7 @@
 #pragma once
 #include <vapours.hpp>
 #include <stratosphere/fssystem/fssystem_nca_file_system_driver.hpp>
+#include <stratosphere/ldr/ldr_platform_id.hpp>
 
 namespace ams::fssystem {
 
@@ -25,10 +26,13 @@ namespace ams::fssystem {
 
     void InvalidateHardwareAesKey();
 
-    const u8 *GetAcidSignatureKeyModulus(bool prod, size_t key_generation);
+    bool IsValidSignatureKeyGeneration(ldr::PlatformId platform, size_t key_generation);
+
+    const u8 *GetAcidSignatureKeyModulus(ldr::PlatformId platform, bool prod, size_t key_generation, bool unk_unused);
+    size_t GetAcidSignatureKeyModulusSize(ldr::PlatformId platform, bool unk_unused);
+
     const u8 *GetAcidSignatureKeyPublicExponent();
 
-    constexpr inline size_t AcidSignatureKeyModulusSize        = NcaCryptoConfiguration::Rsa2048KeyModulusSize;
     constexpr inline size_t AcidSignatureKeyPublicExponentSize = NcaCryptoConfiguration::Rsa2048KeyPublicExponentSize;
 
 }

libraries/libstratosphere/include/stratosphere/ldr/ldr_platform_id.hpp

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) Atmosphère-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/>.
+ */
+
+#pragma once
+#include <vapours.hpp>
+
+namespace ams::ldr {
+
+    /* TODO: Is this really a FS type? What namespace does this actually live inside? */
+    enum PlatformId {
+        PlatformId_Nx = 0,
+    };
+
+}

libraries/libstratosphere/include/stratosphere/ldr/ldr_types.hpp

@@ -19,6 +19,7 @@
 #include <stratosphere/ncm/ncm_ids.hpp>
 #include <stratosphere/ncm/ncm_program_location.hpp>
 #include <stratosphere/sf/sf_buffer_tags.hpp>
+#include <stratosphere/ldr/ldr_platform_id.hpp>
 
 namespace ams::ldr {
 
@@ -224,6 +225,7 @@ namespace ams::ldr {
 
             MetaFlag_OptimizeMemoryAllocation       = (1 << 4),
             MetaFlag_DisableDeviceAddressSpaceMerge = (1 << 5),
+            MetaFlag_EnableAliasRegionExtraSize     = (1 << 6),
         };
 
         enum AddressSpaceType {

libraries/libstratosphere/source/fssystem/fssystem_crypto_configuration.cpp

@@ -22,9 +22,11 @@ namespace ams::fssystem {
 
         constexpr inline const size_t KeySize = crypto::AesDecryptor128::KeySize;
 
-        constexpr inline const size_t AcidSignatureKeyGenerationMax = 1;
+        constexpr inline const size_t NxAcidSignatureKeyGenerationMax = 1;
 
-        constexpr inline const u8 AcidSignatureKeyModulusDev[AcidSignatureKeyGenerationMax + 1][AcidSignatureKeyModulusSize] = {
+        constexpr inline const size_t NxAcidSignatureKeyModulusSize = NcaCryptoConfiguration::Rsa2048KeyModulusSize;
+
+        constexpr inline const u8 NxAcidSignatureKeyModulusDev[NxAcidSignatureKeyGenerationMax + 1][NxAcidSignatureKeyModulusSize] = {
             {
                 0xD6, 0x34, 0xA5, 0x78, 0x6C, 0x68, 0xCE, 0x5A, 0xC2, 0x37, 0x17, 0xF3, 0x82, 0x45, 0xC6, 0x89,
                 0xE1, 0x2D, 0x06, 0x67, 0xBF, 0xB4, 0x06, 0x19, 0x55, 0x6B, 0x27, 0x66, 0x0C, 0xA4, 0xB5, 0x87,
@@ -63,7 +65,7 @@ namespace ams::fssystem {
             }
         };
 
-        constexpr inline const u8 AcidSignatureKeyModulusProd[AcidSignatureKeyGenerationMax + 1][AcidSignatureKeyModulusSize] = {
+        constexpr inline const u8 NxAcidSignatureKeyModulusProd[NxAcidSignatureKeyGenerationMax + 1][NxAcidSignatureKeyModulusSize] = {
             {
                 0xDD, 0xC8, 0xDD, 0xF2, 0x4E, 0x6D, 0xF0, 0xCA, 0x9E, 0xC7, 0x5D, 0xC7, 0x7B, 0xAD, 0xFE, 0x7D,
                 0x23, 0x89, 0x69, 0xB6, 0xF2, 0x06, 0xA2, 0x02, 0x88, 0xE1, 0x55, 0x91, 0xAB, 0xCB, 0x4D, 0x50,
@@ -102,7 +104,7 @@ namespace ams::fssystem {
             }
         };
 
-        static_assert(sizeof(AcidSignatureKeyModulusProd) == sizeof(AcidSignatureKeyModulusDev));
+        static_assert(sizeof(NxAcidSignatureKeyModulusProd) == sizeof(NxAcidSignatureKeyModulusDev));
 
         constexpr inline const u8 AcidSignatureKeyPublicExponent[] = {
             0x01, 0x00, 0x01
@@ -295,10 +297,36 @@ namespace ams::fssystem {
         }
     }
 
-    const u8 *GetAcidSignatureKeyModulus(bool prod, size_t key_generation) {
+    bool IsValidSignatureKeyGeneration(ldr::PlatformId platform, size_t key_generation) {
-        AMS_ASSERT(key_generation <= AcidSignatureKeyGenerationMax);
+        switch (platform) {
-        const size_t used_keygen = (key_generation % (AcidSignatureKeyGenerationMax + 1));
+            case ldr::PlatformId_Nx:
-        return prod ? AcidSignatureKeyModulusProd[used_keygen] : AcidSignatureKeyModulusDev[used_keygen];
+                return key_generation <= NxAcidSignatureKeyGenerationMax;
+            AMS_UNREACHABLE_DEFAULT_CASE();
+        }
+    }
+
+    const u8 *GetAcidSignatureKeyModulus(ldr::PlatformId platform, bool prod, size_t key_generation, bool unk_unused) {
+        AMS_ASSERT(IsValidSignatureKeyGeneration(platform, key_generation));
+        AMS_UNUSED(unk_unused);
+
+        switch (platform) {
+            case ldr::PlatformId_Nx:
+                {
+                    const size_t used_keygen = (key_generation % (NxAcidSignatureKeyGenerationMax + 1));
+                    return prod ? NxAcidSignatureKeyModulusProd[used_keygen] : NxAcidSignatureKeyModulusDev[used_keygen];
+                }
+            AMS_UNREACHABLE_DEFAULT_CASE();
+        }
+    }
+
+    size_t GetAcidSignatureKeyModulusSize(ldr::PlatformId platform, bool unk_unused) {
+        AMS_UNUSED(unk_unused);
+
+        switch (platform) {
+            case ldr::PlatformId_Nx:
+                return NxAcidSignatureKeyModulusSize;
+            AMS_UNREACHABLE_DEFAULT_CASE();
+        }
     }
 
     const u8 *GetAcidSignatureKeyPublicExponent() {

libraries/libvapours/include/vapours/results/loader_results.hpp

@@ -34,6 +34,8 @@ namespace ams::ldr {
     R_DEFINE_ERROR_RESULT(InvalidAcidSignature,  11);
     R_DEFINE_ERROR_RESULT(InvalidNcaSignature,   12);
 
+    R_DEFINE_ERROR_RESULT(InvalidPlatformId,     14);
+
     R_DEFINE_ERROR_RESULT(OutOfAddressSpace,            51);
     R_DEFINE_ERROR_RESULT(InvalidNroImage,              52);
     R_DEFINE_ERROR_RESULT(InvalidNrrImage,              53);

stratosphere/loader/source/ldr_content_management.cpp

@@ -25,12 +25,12 @@ namespace ams::ldr {
     }
 
     /* ScopedCodeMount functionality. */
-    ScopedCodeMount::ScopedCodeMount(const ncm::ProgramLocation &loc) : m_lk(g_scoped_code_mount_lock), m_has_status(false), m_mounted_ams(false), m_mounted_sd_or_code(false), m_mounted_code(false) {
+    ScopedCodeMount::ScopedCodeMount(const ncm::ProgramLocation &loc, PlatformId platform) : m_lk(g_scoped_code_mount_lock), m_has_status(false), m_mounted_ams(false), m_mounted_sd_or_code(false), m_mounted_code(false) {
-        m_result = this->Initialize(loc);
+        m_result = this->Initialize(loc, platform);
     }
 
-    ScopedCodeMount::ScopedCodeMount(const ncm::ProgramLocation &loc, const cfg::OverrideStatus &o) : m_lk(g_scoped_code_mount_lock), m_override_status(o), m_has_status(true), m_mounted_ams(false), m_mounted_sd_or_code(false), m_mounted_code(false) {
+    ScopedCodeMount::ScopedCodeMount(const ncm::ProgramLocation &loc, const cfg::OverrideStatus &o, PlatformId platform) : m_lk(g_scoped_code_mount_lock), m_override_status(o), m_has_status(true), m_mounted_ams(false), m_mounted_sd_or_code(false), m_mounted_code(false) {
-        m_result = this->Initialize(loc);
+        m_result = this->Initialize(loc, platform);
     }
 
     ScopedCodeMount::~ScopedCodeMount() {
@@ -46,25 +46,28 @@ namespace ams::ldr {
         }
     }
 
-    Result ScopedCodeMount::Initialize(const ncm::ProgramLocation &loc) {
+    Result ScopedCodeMount::Initialize(const ncm::ProgramLocation &loc, PlatformId platform) {
         /* Capture override status, if necessary. */
         this->EnsureOverrideStatus(loc);
         AMS_ABORT_UNLESS(m_has_status);
 
         /* Get the content path. */
         char content_path[fs::EntryNameLengthMax + 1];
-        R_TRY(GetProgramPath(content_path, sizeof(content_path), loc));
+        R_TRY(GetProgramPath(content_path, sizeof(content_path), loc, platform));
+
+        /* Get the content attributes. */
+        const auto content_attributes = GetPlatformContentAttributes(platform);
 
         /* Mount the atmosphere code file system. */
-        R_TRY(fs::MountCodeForAtmosphereWithRedirection(std::addressof(m_ams_code_verification_data), AtmosphereCodeMountName, content_path, fs::ContentAttributes_None, loc.program_id, m_override_status.IsHbl(), m_override_status.IsProgramSpecific()));
+        R_TRY(fs::MountCodeForAtmosphereWithRedirection(std::addressof(m_ams_code_verification_data), AtmosphereCodeMountName, content_path, content_attributes, loc.program_id, m_override_status.IsHbl(), m_override_status.IsProgramSpecific()));
         m_mounted_ams = true;
 
         /* Mount the sd or base code file system. */
-        R_TRY(fs::MountCodeForAtmosphere(std::addressof(m_sd_or_base_code_verification_data), SdOrCodeMountName, content_path, fs::ContentAttributes_None, loc.program_id));
+        R_TRY(fs::MountCodeForAtmosphere(std::addressof(m_sd_or_base_code_verification_data), SdOrCodeMountName, content_path, content_attributes, loc.program_id));
         m_mounted_sd_or_code = true;
 
         /* Mount the base code file system. */
-        if (R_SUCCEEDED(fs::MountCode(std::addressof(m_base_code_verification_data), CodeMountName, content_path, fs::ContentAttributes_None, loc.program_id))) {
+        if (R_SUCCEEDED(fs::MountCode(std::addressof(m_base_code_verification_data), CodeMountName, content_path, content_attributes, loc.program_id))) {
             m_mounted_code = true;
         }
 
@@ -80,7 +83,7 @@ namespace ams::ldr {
     }
 
     /* Redirection API. */
-    Result GetProgramPath(char *out_path, size_t out_size, const ncm::ProgramLocation &loc) {
+    Result GetProgramPath(char *out_path, size_t out_size, const ncm::ProgramLocation &loc, PlatformId platform) {
         /* Check for storage id none. */
         if (static_cast<ncm::StorageId>(loc.storage_id) == ncm::StorageId::None) {
             std::memset(out_path, 0, out_size);
@@ -88,6 +91,10 @@ namespace ams::ldr {
             R_SUCCEED();
         }
 
+        /* Get the content attributes. */
+        const auto content_attributes = GetPlatformContentAttributes(platform);
+        AMS_UNUSED(content_attributes);
+
         lr::Path path;
 
         /* Check that path registration is allowable. */
@@ -159,4 +166,12 @@ namespace ams::ldr {
         R_SUCCEED();
     }
 
+    fs::ContentAttributes GetPlatformContentAttributes(PlatformId platform) {
+        switch (platform) {
+            case PlatformId_Nx:
+                return fs::ContentAttributes_None;
+            AMS_UNREACHABLE_DEFAULT_CASE();
+        }
+    }
+
 }

stratosphere/loader/source/ldr_content_management.hpp

@@ -34,8 +34,8 @@ namespace ams::ldr {
             bool m_mounted_sd_or_code;
             bool m_mounted_code;
         public:
-            ScopedCodeMount(const ncm::ProgramLocation &loc);
+            ScopedCodeMount(const ncm::ProgramLocation &loc, PlatformId platform);
-            ScopedCodeMount(const ncm::ProgramLocation &loc, const cfg::OverrideStatus &override_status);
+            ScopedCodeMount(const ncm::ProgramLocation &loc, const cfg::OverrideStatus &override_status, PlatformId platform);
             ~ScopedCodeMount();
 
             Result GetResult() const {
@@ -59,21 +59,27 @@ namespace ams::ldr {
                 return m_base_code_verification_data;
             }
         private:
-            Result Initialize(const ncm::ProgramLocation &loc);
+            Result Initialize(const ncm::ProgramLocation &loc, PlatformId platform);
             void EnsureOverrideStatus(const ncm::ProgramLocation &loc);
     };
 
     constexpr inline const char * const AtmosphereCodeMountName   = "ams-code";
+    constexpr inline const char * const AtmosphereCompatMountName = "ams-cmpt";
     constexpr inline const char * const SdOrCodeMountName         = "sd-code";
     constexpr inline const char * const CodeMountName             = "code";
+    constexpr inline const char * const CompatMountName           = "cmpt";
 
     #define ENCODE_ATMOSPHERE_CODE_PATH(relative) "ams-code:" relative
+    #define ENCODE_ATMOSPHERE_CMPT_PATH(relative) "ams-cmpt:" relative
     #define ENCODE_SD_OR_CODE_PATH(relative) "sd-code:" relative
     #define ENCODE_CODE_PATH(relative) "code:" relative
+    #define ENCODE_CMPT_PATH(relative) "cmpt:" relative
 
     /* Redirection API. */
-    Result GetProgramPath(char *out_path, size_t out_size, const ncm::ProgramLocation &loc);
+    Result GetProgramPath(char *out_path, size_t out_size, const ncm::ProgramLocation &loc, PlatformId platform);
     Result RedirectProgramPath(const char *path, size_t size, const ncm::ProgramLocation &loc);
     Result RedirectHtmlDocumentPathForHbl(const ncm::ProgramLocation &loc);
 
+    fs::ContentAttributes GetPlatformContentAttributes(PlatformId platform);
+
 }

stratosphere/loader/source/ldr_loader_service.cpp

@@ -27,11 +27,13 @@ namespace ams::ldr {
 
         constinit ArgumentStore g_argument_store;
 
+        bool IsValidPlatform(PlatformId platform) {
+            return platform == PlatformId_Nx;
         }
 
-
+        Result CreateProcessByPlatform(os::NativeHandle *out, PinId pin_id, u32 flags, os::NativeHandle resource_limit, PlatformId platform) {
-    Result LoaderService::CreateProcess(os::NativeHandle *out, PinId pin_id, u32 flags, os::NativeHandle resource_limit) {
+            /* Check that the platform is valid. */
-        /* Declare program path, which we'll need later. */
+            R_UNLESS(IsValidPlatform(platform), ldr::ResultInvalidPlatformId());
 
             /* Get the location and override status. */
             ncm::ProgramLocation loc;
@@ -40,25 +42,28 @@ namespace ams::ldr {
 
             /* Get the program path. */
             char path[fs::EntryNameLengthMax];
-        R_TRY(GetProgramPath(path, sizeof(path), loc));
+            R_TRY(GetProgramPath(path, sizeof(path), loc, platform));
             path[sizeof(path) - 1] = '\x00';
 
             /* Create the process. */
-        R_RETURN(ldr::CreateProcess(out, pin_id, loc, override_status, path, g_argument_store.Get(loc.program_id), flags, resource_limit));
+            R_RETURN(ldr::CreateProcess(out, pin_id, loc, override_status, path, g_argument_store.Get(loc.program_id), flags, resource_limit, platform));
         }
 
-    Result LoaderService::GetProgramInfo(ProgramInfo *out, cfg::OverrideStatus *out_status, const ncm::ProgramLocation &loc) {
+        Result GetProgramInfoByPlatform(ProgramInfo *out, cfg::OverrideStatus *out_status, const ncm::ProgramLocation &loc, PlatformId platform) {
+            /* Check that the platform is valid. */
+            R_UNLESS(IsValidPlatform(platform), ldr::ResultInvalidPlatformId());
+
             /* Zero output. */
             std::memset(out, 0, sizeof(*out));
 
             /* Get the program path. */
             char path[fs::EntryNameLengthMax];
-        R_TRY(GetProgramPath(path, sizeof(path), loc));
+            R_TRY(GetProgramPath(path, sizeof(path), loc, platform));
             path[sizeof(path) - 1] = '\x00';
 
             /* Get the program info. */
             cfg::OverrideStatus status;
-        R_TRY(ldr::GetProgramInfo(out, std::addressof(status), loc, path));
+            R_TRY(ldr::GetProgramInfo(out, std::addressof(status), loc, path, platform));
 
             if (loc.program_id != out->program_id) {
                 /* Redirect the program path. */
@@ -67,7 +72,7 @@ namespace ams::ldr {
 
                 /* Update the arguments, as needed. */
                 if (const auto *entry = g_argument_store.Get(loc.program_id); entry != nullptr) {
-                R_TRY(this->SetProgramArgument(new_loc.program_id, entry->argument, entry->argument_size));
+                    R_TRY(g_argument_store.Set(new_loc.program_id, entry->argument, entry->argument_size));
                 }
             }
 
@@ -79,6 +84,17 @@ namespace ams::ldr {
             R_SUCCEED();
         }
 
+    }
+
+
+    Result LoaderService::CreateProcess(os::NativeHandle *out, PinId pin_id, u32 flags, os::NativeHandle resource_limit) {
+        R_RETURN(CreateProcessByPlatform(out, pin_id, flags, resource_limit, PlatformId_Nx));
+    }
+
+    Result LoaderService::GetProgramInfo(ProgramInfo *out, cfg::OverrideStatus *out_status, const ncm::ProgramLocation &loc) {
+        R_RETURN(GetProgramInfoByPlatform(out, out_status, loc, PlatformId_Nx));
+    }
+
     Result LoaderService::PinProgram(PinId *out, const ncm::ProgramLocation &loc, const cfg::OverrideStatus &status) {
         *out = {};
         R_RETURN(ldr::PinProgram(out, loc, status));

stratosphere/loader/source/ldr_meta.cpp

@@ -55,21 +55,8 @@ namespace ams::ldr {
             R_UNLESS(npdm->magic == Npdm::Magic, ldr::ResultInvalidMeta());
 
             /* Validate flags. */
-            u32 mask;
+            constexpr u32 InvalidMetaFlagMask = 0x80000000;
-            if (hos::GetVersion() >= hos::Version_11_0_0) {
+            R_UNLESS(!(npdm->flags & InvalidMetaFlagMask), ldr::ResultInvalidMeta());
-                /* 11.0.0 added bit 5 = "DisableDeviceAddressSpaceMerge". */
-                mask = ~0x3F;
-            } else if (hos::GetVersion() >= hos::Version_7_0_0) {
-                /* 7.0.0 added bit 4 = "UseOptimizedMemory" */
-                mask = ~0x1F;
-            } else {
-                mask = ~0xF;
-            }
-
-            /* We set the "DisableDeviceAddressSpaceMerge" bit on all versions, so be permissive with it. */
-            mask &= ~0x20;
-
-            R_UNLESS(!(npdm->flags & mask), ldr::ResultInvalidMeta());
 
             /* Validate Acid extents. */
             R_TRY(ValidateSubregion(sizeof(Npdm), size, npdm->acid_offset, npdm->acid_size, sizeof(Acid)));
@@ -90,8 +77,8 @@ namespace ams::ldr {
             }
 
             /* Validate that the acid version is correct. */
-            constexpr u8 MinimumValueForAcid209 = 14; /* TODO: What is the actual meaning of this value? */
+            constexpr u8 SupportedSdkMajorVersion = ams::svc::ConvertToSdkMajorVersion(ams::svc::SupportedKernelMajorVersion);
-            if (acid->unknown_209 < MinimumValueForAcid209) {
+            if (acid->unknown_209 < SupportedSdkMajorVersion) {
                 R_UNLESS(acid->version == 0,     ldr::ResultInvalidMeta());
                 R_UNLESS(acid->unknown_209 == 0, ldr::ResultInvalidMeta());
             }
@@ -116,22 +103,30 @@ namespace ams::ldr {
             R_SUCCEED();
         }
 
-        const u8 *GetAcidSignatureModulus(u32 key_generation) {
+        const u8 *GetAcidSignatureModulus(PlatformId platform, u8 key_generation, bool unk_unused) {
-            return fssystem::GetAcidSignatureKeyModulus(!IsDevelopmentForAcidSignatureCheck(), key_generation);
+            return fssystem::GetAcidSignatureKeyModulus(platform, !IsDevelopmentForAcidSignatureCheck(), key_generation, unk_unused);
         }
 
-        Result ValidateAcidSignature(Meta *meta) {
+        size_t GetAcidSignatureModulusSize(PlatformId platform, bool unk_unused) {
+            return fssystem::GetAcidSignatureKeyModulusSize(platform, unk_unused);
+        }
+
+        Result ValidateAcidSignature(Meta *meta, PlatformId platform, bool unk_unused) {
             /* Loader did not check signatures prior to 10.0.0. */
             if (hos::GetVersion() < hos::Version_10_0_0) {
                 meta->check_verification_data = false;
                 R_SUCCEED();
             }
 
+            /* Get the signature key generation. */
+            const auto signature_key_generation = meta->npdm->signature_key_generation;
+            R_UNLESS(fssystem::IsValidSignatureKeyGeneration(platform, signature_key_generation), ldr::ResultInvalidMeta());
+
             /* Verify the signature. */
             const u8 *sig         = meta->acid->signature;
             const size_t sig_size = sizeof(meta->acid->signature);
-            const u8 *mod         = GetAcidSignatureModulus(meta->npdm->signature_key_generation);
+            const u8 *mod         = GetAcidSignatureModulus(platform, signature_key_generation, unk_unused);
-            const size_t mod_size = fssystem::AcidSignatureKeyModulusSize;
+            const size_t mod_size = GetAcidSignatureModulusSize(platform, unk_unused);
             const u8 *exp         = fssystem::GetAcidSignatureKeyPublicExponent();
             const size_t exp_size = fssystem::AcidSignatureKeyPublicExponentSize;
             const u8 *msg         = meta->acid->modulus;
@@ -195,7 +190,10 @@ namespace ams::ldr {
     }
 
     /* API. */
-    Result LoadMeta(Meta *out_meta, const ncm::ProgramLocation &loc, const cfg::OverrideStatus &status) {
+    Result LoadMeta(Meta *out_meta, const ncm::ProgramLocation &loc, const cfg::OverrideStatus &status, PlatformId platform, bool unk_unused) {
+        /* Set the cached program id back to zero. */
+        g_cached_program_id = {};
+
         /* Try to load meta from file. */
         fs::FileHandle file;
         R_TRY(fs::OpenFile(std::addressof(file), AtmosphereMetaPath, fs::OpenMode_Read));
@@ -261,7 +259,7 @@ namespace ams::ldr {
                 R_TRY(fs::OpenFile(std::addressof(file), BaseMetaPath, fs::OpenMode_Read));
                 ON_SCOPE_EXIT { fs::CloseFile(file); };
                 R_TRY(LoadMetaFromFile(file, std::addressof(g_original_meta_cache)));
-                R_TRY(ValidateAcidSignature(std::addressof(g_original_meta_cache.meta)));
+                R_TRY(ValidateAcidSignature(std::addressof(g_original_meta_cache.meta), platform, unk_unused));
                 meta->modulus                 = g_original_meta_cache.meta.modulus;
                 meta->check_verification_data = g_original_meta_cache.meta.check_verification_data;
             }
@@ -280,9 +278,9 @@ namespace ams::ldr {
         R_SUCCEED();
     }
 
-    Result LoadMetaFromCache(Meta *out_meta, const ncm::ProgramLocation &loc, const cfg::OverrideStatus &status) {
+    Result LoadMetaFromCache(Meta *out_meta, const ncm::ProgramLocation &loc, const cfg::OverrideStatus &status, PlatformId platform) {
         if (g_cached_program_id != loc.program_id || g_cached_override_status != status) {
-            R_RETURN(LoadMeta(out_meta, loc, status));
+            R_RETURN(LoadMeta(out_meta, loc, status, platform, false));
         }
         *out_meta = g_meta_cache.meta;
         R_SUCCEED();

stratosphere/loader/source/ldr_meta.hpp

@@ -36,8 +36,8 @@ namespace ams::ldr {
     };
 
     /* Meta API. */
-    Result LoadMeta(Meta *out_meta, const ncm::ProgramLocation &loc, const cfg::OverrideStatus &status);
+    Result LoadMeta(Meta *out_meta, const ncm::ProgramLocation &loc, const cfg::OverrideStatus &status, PlatformId platform, bool unk_unused);
-    Result LoadMetaFromCache(Meta *out_meta, const ncm::ProgramLocation &loc, const cfg::OverrideStatus &status);
+    Result LoadMetaFromCache(Meta *out_meta, const ncm::ProgramLocation &loc, const cfg::OverrideStatus &status, PlatformId platform);
     void   InvalidateMetaCache();
 
 }

stratosphere/loader/source/ldr_process_creation.cpp

@@ -34,23 +34,43 @@ namespace ams::ldr {
         enum NsoIndex {
             Nso_Rtld    =  0,
             Nso_Main    =  1,
-            Nso_SubSdk0 =  2,
+            Nso_Compat0 =  2,
-            Nso_SubSdk1 =  3,
+            Nso_Compat1 =  3,
-            Nso_SubSdk2 =  4,
+            Nso_Compat2 =  4,
-            Nso_SubSdk3 =  5,
+            Nso_Compat3 =  5,
-            Nso_SubSdk4 =  6,
+            Nso_Compat4 =  6,
-            Nso_SubSdk5 =  7,
+            Nso_Compat5 =  7,
-            Nso_SubSdk6 =  8,
+            Nso_Compat6 =  8,
-            Nso_SubSdk7 =  9,
+            Nso_Compat7 =  9,
-            Nso_SubSdk8 = 10,
+            Nso_Compat8 = 10,
-            Nso_SubSdk9 = 11,
+            Nso_Compat9 = 11,
-            Nso_Sdk     = 12,
+            Nso_SubSdk0 = 12,
+            Nso_SubSdk1 = 13,
+            Nso_SubSdk2 = 14,
+            Nso_SubSdk3 = 15,
+            Nso_SubSdk4 = 16,
+            Nso_SubSdk5 = 17,
+            Nso_SubSdk6 = 18,
+            Nso_SubSdk7 = 19,
+            Nso_SubSdk8 = 20,
+            Nso_SubSdk9 = 21,
+            Nso_Sdk     = 22,
             Nso_Count,
         };
 
         constexpr inline const char *NsoPaths[Nso_Count] = {
             ENCODE_ATMOSPHERE_CODE_PATH("/rtld"),
             ENCODE_ATMOSPHERE_CODE_PATH("/main"),
+            ENCODE_ATMOSPHERE_CMPT_PATH("/compat0"),
+            ENCODE_ATMOSPHERE_CMPT_PATH("/compat1"),
+            ENCODE_ATMOSPHERE_CMPT_PATH("/compat2"),
+            ENCODE_ATMOSPHERE_CMPT_PATH("/compat3"),
+            ENCODE_ATMOSPHERE_CMPT_PATH("/compat4"),
+            ENCODE_ATMOSPHERE_CMPT_PATH("/compat5"),
+            ENCODE_ATMOSPHERE_CMPT_PATH("/compat6"),
+            ENCODE_ATMOSPHERE_CMPT_PATH("/compat7"),
+            ENCODE_ATMOSPHERE_CMPT_PATH("/compat8"),
+            ENCODE_ATMOSPHERE_CMPT_PATH("/compat9"),
             ENCODE_ATMOSPHERE_CODE_PATH("/subsdk0"),
             ENCODE_ATMOSPHERE_CODE_PATH("/subsdk1"),
             ENCODE_ATMOSPHERE_CODE_PATH("/subsdk2"),
@@ -360,6 +380,11 @@ namespace ams::ldr {
                 flags |= svc::CreateProcessFlag_DisableDeviceAddressSpaceMerge;
             }
 
+            /* 18.0.0+/meso Set Alias region extra size. */
+            if (meta_flags & Npdm::MetaFlag_EnableAliasRegionExtraSize) {
+                flags |= svc::CreateProcessFlag_EnableAliasRegionExtraSize;
+            }
+
             *out = flags;
             R_SUCCEED();
         }
@@ -639,15 +664,15 @@ namespace ams::ldr {
     }
 
     /* Process Creation API. */
-    Result CreateProcess(os::NativeHandle *out, PinId pin_id, const ncm::ProgramLocation &loc, const cfg::OverrideStatus &override_status, const char *path, const ArgumentStore::Entry *argument, u32 flags, os::NativeHandle resource_limit) {
+    Result CreateProcess(os::NativeHandle *out, PinId pin_id, const ncm::ProgramLocation &loc, const cfg::OverrideStatus &override_status, const char *path, const ArgumentStore::Entry *argument, u32 flags, os::NativeHandle resource_limit, PlatformId platform) {
         /* Mount code. */
         AMS_UNUSED(path);
-        ScopedCodeMount mount(loc, override_status);
+        ScopedCodeMount mount(loc, override_status, platform);
         R_TRY(mount.GetResult());
 
         /* Load meta, possibly from cache. */
         Meta meta;
-        R_TRY(LoadMetaFromCache(std::addressof(meta), loc, override_status));
+        R_TRY(LoadMetaFromCache(std::addressof(meta), loc, override_status, platform));
 
         /* Validate meta. */
         R_TRY(ValidateMeta(std::addressof(meta), loc, mount.GetCodeVerificationData()));
@@ -695,16 +720,16 @@ namespace ams::ldr {
         R_SUCCEED();
     }
 
-    Result GetProgramInfo(ProgramInfo *out, cfg::OverrideStatus *out_status, const ncm::ProgramLocation &loc, const char *path) {
+    Result GetProgramInfo(ProgramInfo *out, cfg::OverrideStatus *out_status, const ncm::ProgramLocation &loc, const char *path, PlatformId platform) {
         Meta meta;
 
         /* Load Meta. */
         {
             AMS_UNUSED(path);
 
-            ScopedCodeMount mount(loc);
+            ScopedCodeMount mount(loc, platform);
             R_TRY(mount.GetResult());
-            R_TRY(LoadMeta(std::addressof(meta), loc, mount.GetOverrideStatus()));
+            R_TRY(LoadMeta(std::addressof(meta), loc, mount.GetOverrideStatus(), platform, false));
             if (out_status != nullptr) {
                 *out_status = mount.GetOverrideStatus();
             }

stratosphere/loader/source/ldr_process_creation.hpp

@@ -19,8 +19,8 @@
 namespace ams::ldr {
 
     /* Process Creation API. */
-    Result CreateProcess(os::NativeHandle *out, PinId pin_id, const ncm::ProgramLocation &loc, const cfg::OverrideStatus &override_status, const char *path, const ArgumentStore::Entry *argument, u32 flags, os::NativeHandle resource_limit);
+    Result CreateProcess(os::NativeHandle *out, PinId pin_id, const ncm::ProgramLocation &loc, const cfg::OverrideStatus &override_status, const char *path, const ArgumentStore::Entry *argument, u32 flags, os::NativeHandle resource_limit, PlatformId platform);
-    Result GetProgramInfo(ProgramInfo *out, cfg::OverrideStatus *out_status, const ncm::ProgramLocation &loc, const char *path);
+    Result GetProgramInfo(ProgramInfo *out, cfg::OverrideStatus *out_status, const ncm::ProgramLocation &loc, const char *path, PlatformId platform);
 
     Result PinProgram(PinId *out_id, const ncm::ProgramLocation &loc, const cfg::OverrideStatus &override_status);
     Result UnpinProgram(PinId id);