implement a new context switch

Cargo.toml

@@ -102,3 +102,6 @@ pre-release-replacements = [
     { file = "Changelog.md", search = "# Unreleased", replace = "# Unreleased\n\n# {{version}} – {{date}}", exactly = 1 },
 ]
 pre-release-commit-message = "Release version {{version}}"
+
+[patch.crates-io]
+x86_64 = { git = "https://github.com/Freax13/x86_64", rev = "1335841" }

api/build.rs

@@ -15,13 +15,14 @@ fn main() {
         (31, 9),
         (40, 9),
         (49, 9),
-        (58, 10),
-        (68, 10),
-        (78, 1),
-        (79, 9),
+        (58, 9),
+        (67, 10),
+        (77, 10),
+        (87, 1),
         (88, 9),
         (97, 9),
         (106, 9),
+        (115, 9),
     ];
 
     let mut code = String::new();

api/src/config.rs

@@ -35,7 +35,7 @@ impl BootloaderConfig {
         0x3D,
     ];
     #[doc(hidden)]
-    pub const SERIALIZED_LEN: usize = 115;
+    pub const SERIALIZED_LEN: usize = 124;
 
     /// Creates a new default configuration with the following values:
     ///
@@ -72,6 +72,7 @@ impl BootloaderConfig {
             kernel_stack,
             boot_info,
             framebuffer,
+            gdt,
             physical_memory,
             page_table_recursive,
             aslr,
@@ -94,45 +95,46 @@ impl BootloaderConfig {
         let buf = concat_31_9(buf, kernel_stack.serialize());
         let buf = concat_40_9(buf, boot_info.serialize());
         let buf = concat_49_9(buf, framebuffer.serialize());
+        let buf = concat_58_9(buf, gdt.serialize());
 
-        let buf = concat_58_10(
+        let buf = concat_67_10(
             buf,
             match physical_memory {
                 Option::None => [0; 10],
                 Option::Some(m) => concat_1_9([1], m.serialize()),
             },
         );
-        let buf = concat_68_10(
+        let buf = concat_77_10(
             buf,
             match page_table_recursive {
                 Option::None => [0; 10],
                 Option::Some(m) => concat_1_9([1], m.serialize()),
             },
         );
-        let buf = concat_78_1(buf, [(*aslr) as u8]);
-        let buf = concat_79_9(
+        let buf = concat_87_1(buf, [(*aslr) as u8]);
+        let buf = concat_88_9(
             buf,
             match dynamic_range_start {
                 Option::None => [0; 9],
                 Option::Some(addr) => concat_1_8([1], addr.to_le_bytes()),
             },
         );
-        let buf = concat_88_9(
+        let buf = concat_97_9(
             buf,
             match dynamic_range_end {
                 Option::None => [0; 9],
                 Option::Some(addr) => concat_1_8([1], addr.to_le_bytes()),
             },
         );
 
-        let buf = concat_97_9(
+        let buf = concat_106_9(
             buf,
             match minimum_framebuffer_height {
                 Option::None => [0; 9],
                 Option::Some(addr) => concat_1_8([1], addr.to_le_bytes()),
             },
         );
-        let buf = concat_106_9(
+        let buf = concat_115_9(
             buf,
             match minimum_framebuffer_width {
                 Option::None => [0; 9],
@@ -189,6 +191,7 @@ impl BootloaderConfig {
             let (&kernel_stack, s) = split_array_ref(s);
             let (&boot_info, s) = split_array_ref(s);
             let (&framebuffer, s) = split_array_ref(s);
+            let (&gdt, s) = split_array_ref(s);
             let (&physical_memory_some, s) = split_array_ref(s);
             let (&physical_memory, s) = split_array_ref(s);
             let (&page_table_recursive_some, s) = split_array_ref(s);
@@ -203,6 +206,7 @@ impl BootloaderConfig {
                 kernel_stack: Mapping::deserialize(&kernel_stack)?,
                 boot_info: Mapping::deserialize(&boot_info)?,
                 framebuffer: Mapping::deserialize(&framebuffer)?,
+                gdt: Mapping::deserialize(&gdt)?,
                 physical_memory: match physical_memory_some {
                     [0] if physical_memory == [0; 9] => Option::None,
                     [1] => Option::Some(Mapping::deserialize(&physical_memory)?),
@@ -351,6 +355,8 @@ pub struct Mappings {
     pub boot_info: Mapping,
     /// Specifies the mapping of the frame buffer memory region.
     pub framebuffer: Mapping,
+    /// Specifies the mapping of the GDT.
+    pub gdt: Mapping,
     /// The bootloader supports to map the whole physical memory into the virtual address
     /// space at some offset. This is useful for accessing and modifying the page tables set
     /// up by the bootloader.
@@ -388,6 +394,7 @@ impl Mappings {
             kernel_stack: Mapping::new_default(),
             boot_info: Mapping::new_default(),
             framebuffer: Mapping::new_default(),
+            gdt: Mapping::new_default(),
             physical_memory: Option::None,
             page_table_recursive: Option::None,
             aslr: false,
@@ -404,6 +411,7 @@ impl Mappings {
             kernel_stack: Mapping::random(),
             boot_info: Mapping::random(),
             framebuffer: Mapping::random(),
+            gdt: Mapping::random(),
             physical_memory: if phys {
                 Option::Some(Mapping::random())
             } else {