bjorn3
42 lines
818 B
Rust
42 lines
818 B
Rust
pub use crate::arch::x86_shared::*;
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/// Constants like memory locations
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pub mod consts;
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/// Interrupt instructions
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#[macro_use]
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pub mod interrupt;
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#[unsafe(naked)]
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pub unsafe extern "C" fn arch_copy_to_user(dst: usize, src: usize, len: usize) -> u8 {
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core::arch::naked_asm!(
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"
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.global __usercopy_start
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__usercopy_start:
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push edi
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push esi
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mov edi, [esp + 12] # dst
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mov esi, [esp + 16] # src
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mov ecx, [esp + 20] # len
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rep movsb
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pop esi
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pop edi
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xor eax, eax
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ret
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.global __usercopy_end
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__usercopy_end:
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"
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);
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}
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pub use arch_copy_to_user as arch_copy_from_user;
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pub const KFX_SIZE: usize = 512;
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// This function exists as the KFX size is dynamic on x86_64.
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pub fn kfx_size() -> usize {
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KFX_SIZE
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}
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