[hle] make HBLoader work

Signed-off-by: lizzie <lizzie@eden-emu.dev>

docs/user/CFW.md

@@ -9,3 +9,11 @@ At the moment of writing, we do not support CFW such as Atmosphere, due to:
 We do however, maintain HLE compatibility with the former mentioned CFW, applications that require Atmosphere to run will run fine in the emulator without any adjustments.
 
 If they don't run - then that's a bug!
+
+## Atmosphere
+
+Fusee Galee, the bootloader and other low-level mechanisms are not emulated at the moment.
+
+Having OFW is recommended, but may not be required (untested).
+
+Extract the contents of Atmosphere into `sdmc`. Then to launch simply use `-hlaunch` instead (orthogonal to `-qlaunch`).

docs/user/CommandLine.md

@@ -10,6 +10,9 @@ There are two main applications, an SDL-based app (`eden-cli`) and a Qt based ap
 - `-u <number>`: Select the index of the user to load as.
 - `-input-profile <name>`: Specifies input profile name to use (for player #0 only).
 - `-qlaunch`: Launch QLaunch.
+- `-hlaunch`: Launch homebrew launcher `nx-hbloader`.
+    - Requires a copy of Atmosphere to be extracted onto `sdmc`.
+    - This is a shorthand for `<eden folder>/sdmc/atmosphere/hbl.nsp`.
 - `-setup`: Launch setup applet.
 
 ## eden-cli

src/core/hle/kernel/k_capabilities.cpp

@@ -268,7 +268,8 @@ 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);

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());
         }
     }
 }