forked from AbleOS/ableos
Hack in an inb/outb api
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parent
f33cc0bf70
commit
1adc381399
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@ -88,6 +88,37 @@ pub fn handler(vm: &mut Vm) {
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}
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//
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}
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3 => {
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unsafe fn x86_in(address: u16) -> u32 {
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x86_64::instructions::port::Port::new(address).read()
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}
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unsafe fn x86_out(address: u16, value: u32) {
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x86_64::instructions::port::Port::new(address).write(value);
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}
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let mut msg_vec = block_read(mem_addr, length);
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let msg_type = msg_vec[0];
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msg_vec.remove(0);
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match msg_type {
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0 => {
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let addr = msg_vec[0];
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msg_vec.remove(0);
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let value = unsafe { x86_in(addr as u16) };
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info!("Read the value {} from address {}", value, addr);
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vm.registers[1] = hbvm::value::Value(value as u64);
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}
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1 => {
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let addr = msg_vec[0];
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msg_vec.remove(0);
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let value = msg_vec[0];
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msg_vec.remove(0);
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info!("Setting the address {} to {}", addr, value);
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unsafe { x86_out(addr as u16, value as u32) };
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}
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_ => {}
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}
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}
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buffer_id => {
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let mut buffs = IPC_BUFFERS.lock();
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@ -16,5 +16,13 @@ main := fn(): int {
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memory.release_page(memory_pages, 3);
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// todo: abstract this out
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port_str := "\0\{70}\0";
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a := @eca(u8, 3, 3, port_str, 2);
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return 0;
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}
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