From d6815a5903716c058c4f8bee89bfa745ee752c9d Mon Sep 17 00:00:00 2001 From: Tianhao Wang Date: Wed, 5 Jun 2024 07:56:16 +0200 Subject: proc: interrupt: define context and trap frame Signed-off-by: Tianhao Wang --- src/arch/x86_64/arch_regs.rs | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 src/arch/x86_64/arch_regs.rs (limited to 'src/arch/x86_64/arch_regs.rs') 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; +} -- cgit v1.2.3-70-g09d2