Add bootloader version to boot info

src/binary/mod.rs

@@ -277,6 +277,10 @@ where
 
     // create boot info
     let boot_info = boot_info.write(BootInfo {
+        version_major: env!("CARGO_PKG_VERSION_MAJOR").parse().unwrap(),
+        version_minor: env!("CARGO_PKG_VERSION_MINOR").parse().unwrap(),
+        version_patch: env!("CARGO_PKG_VERSION_PATCH").parse().unwrap(),
+        pre_release: !env!("CARGO_PKG_VERSION_PRE").is_empty(),
         memory_regions,
         framebuffer: mappings.framebuffer.map(|addr| FrameBuffer {
             buffer_start: addr.as_u64(),

src/boot_info.rs

@@ -15,6 +15,17 @@ use core::slice;
 /// signature, use the [`entry_point`] macro.
 #[derive(Debug)]
 pub struct BootInfo {
+    /// Bootloader version (major).
+    pub version_major: u16,
+    /// Bootloader version (minor).
+    pub version_minor: u16,
+    /// Bootloader version (patch).
+    pub version_patch: u16,
+    /// Whether the bootloader version is a pre-release.
+    ///
+    /// We can't store the full prerelease string of the version number since it could be
+    /// arbitrarily long.
+    pub pre_release: bool,
     /// A map of the physical memory regions of the underlying machine.
     ///
     /// The bootloader queries this information from the BIOS/UEFI firmware and translates this