proc: interrupt: define context and trap frame

Signed-off-by: Tianhao Wang <shrik3@mailbox.org>

1 files changed, 43 insertions, 0 deletions

diff --git a/src/arch/x86_64/arch_regs.rs b/src/arch/x86_64/arch_regs.rs
new file mode 100644
index 0000000..a49926e
--- /dev/null
+++ b/src/arch/x86_64/arch_regs.rs
@@ -0,0 +1,43 @@
+use core::arch::asm;
+
+/// arch specific registers
+#[repr(C)]
+#[repr(packed)]
+#[derive(Debug)]
+pub struct Context64 {
+	pub rbx: u64,
+	pub r12: u64,
+	pub r13: u64,
+	pub r14: u64,
+	pub r15: u64,
+	pub rbp: u64,
+	pub rsp: u64,
+	pub fpu: [u8; 108],
+}
+
+/// arch specific registers
+#[repr(C)]
+#[repr(packed)]
+#[derive(Debug)]
+pub struct TrapFrame {
+	pub r11: u64,
+	pub r10: u64,
+	pub r9: u64,
+	pub r8: u64,
+	pub rsi: u64,
+	pub rdi: u64,
+	pub rdx: u64,
+	pub rcx: u64,
+	pub rax: u64,
+	pub err_code: u64,
+}
+
+// this will get the current (kernel) stack pointer
+#[inline]
+pub fn get_sp() -> u64 {
+	let sp: u64;
+	unsafe {
+		asm!("mov {}, rsp", out(reg) sp);
+	}
+	return sp;
+}