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ableos/kernel/src/holeybytes/mem.rs

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2023-10-27 20:26:04 -05:00
//! Security? Multiple address spaces? What are you talking about
//! young adventurer. In this temple, we know no such words.
//!
//! Want your program to override other program's data or even the
//! data of the kernel itself? Sure. This right shall not be infringed.
use hbvm::mem::Address;
pub struct Memory;
impl hbvm::mem::Memory for Memory {
#[inline]
unsafe fn load(
&mut self,
addr: Address,
target: *mut u8,
count: usize,
) -> Result<(), hbvm::mem::LoadError> {
core::ptr::copy(addr.get() as *const u8, target, count);
Ok(())
}
#[inline]
unsafe fn store(
&mut self,
addr: Address,
source: *const u8,
count: usize,
) -> Result<(), hbvm::mem::StoreError> {
core::ptr::copy(source, addr.get() as *mut u8, count);
Ok(())
}
#[inline]
unsafe fn prog_read<T: Copy>(&mut self, addr: Address) -> T {
(addr.get() as *const T).read()
}
}