[hle] make HBLoader work, add -hlaunch option (#3981)

hbloader is required to launch a bunch of shit (particularly hbmenu)

however due to some restrictive metadata validation, it doesn't get recognized as an NSP file

programs like hbmenu require hbloader (since it feeds them data like ConfigEntries and whatnot), launching hbmenu as-is standalone will result in a launchInit() error

adds an option to launch hbmenu via command line

Signed-off-by: lizzie <lizzie@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3981
Reviewed-by: Maufeat <sahyno1996@gmail.com>
Reviewed-by: crueter <crueter@eden-emu.dev>

2 files changed, 15 insertions, 5 deletions

diff --git a/src/core/hle/kernel/k_capabilities.cpp b/src/core/hle/kernel/k_capabilities.cpp
index d2288c30d1..90f41dd1fc 100644
--- a/src/core/hle/kernel/k_capabilities.cpp
+++ b/src/core/hle/kernel/k_capabilities.cpp
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -268,7 +271,8 @@ Result KCapabilities::SetHandleTableCapability(const u32 cap) {
 Result KCapabilities::SetDebugFlagsCapability(const u32 cap) {
     // Validate.
     const DebugFlags pack{cap};
-    R_UNLESS(pack.reserved == 0, ResultReservedUsed);
+    // TODO: Enabling this breaks compatibility with HBloader and such
+    //R_UNLESS(pack.reserved == 0, ResultReservedUsed);
 
     DebugFlags debug_capabilities{m_debug_capabilities};
     debug_capabilities.allow_debug.Assign(pack.allow_debug);
diff --git a/src/yuzu/main_window.cpp b/src/yuzu/main_window.cpp
index 2bb83fa189..a43a06cd31 100644
--- a/src/yuzu/main_window.cpp
+++ b/src/yuzu/main_window.cpp
@@ -3,6 +3,7 @@
 
 // Qt on macOS doesn't define VMA shit
 #include <boost/algorithm/string/split.hpp>
+#include "common/fs/path_util.h"
 #include "common/settings.h"
 #include "common/settings_enums.h"
 #include "frontend_common/settings_generator.h"
@@ -635,6 +636,7 @@ MainWindow::MainWindow(bool has_broken_vulkan)
 
     QString game_path;
     bool should_launch_qlaunch = false;
+    bool should_launch_hlaunch = false;
     bool should_launch_setup = false;
     bool has_gamepath = false;
     bool is_fullscreen = false;
@@ -676,6 +678,8 @@ MainWindow::MainWindow(bool has_broken_vulkan)
             players[0].profile_name = args[++i].toStdString();
         } else if (args[i] == QStringLiteral("-qlaunch")) {
             should_launch_qlaunch = true;
+        } else if (args[i] == QStringLiteral("-hlaunch")) {
+            should_launch_hlaunch = true;
         } else if (args[i] == QStringLiteral("-setup")) {
             should_launch_setup = true;
         } else {
@@ -694,10 +698,12 @@ MainWindow::MainWindow(bool has_broken_vulkan)
     } else {
         if (!game_path.isEmpty()) {
             BootGame(game_path, ApplicationAppletParameters());
-        } else {
-            if (should_launch_qlaunch) {
-                LaunchFirmwareApplet(u64(Service::AM::AppletProgramId::QLaunch), std::nullopt);
-            }
+        } else if (should_launch_qlaunch) {
+            LaunchFirmwareApplet(u64(Service::AM::AppletProgramId::QLaunch), std::nullopt);
+        } else if (should_launch_hlaunch) {
+            std::filesystem::path const sd_dir = Common::FS::GetEdenPathString(Common::FS::EdenPath::SDMCDir);
+            auto const hbl_path = (sd_dir / "atmosphere" / "hbl.nsp").string();
+            BootGame(QString::fromStdString(hbl_path), ApplicationAppletParameters());
         }
     }
 }