Commit Graph

3 Commits

Author SHA1 Message Date
Reto Buerki
4e259f7b1e hw_x86_64: Implement LAPIC-based kernel timer
The LAPIC timer is programmed in one-shot mode with vector 32
(Board::TIMER_VECTOR_KERNEL). The timer frequency is measured using PIT
channel 2 as reference (50ms delay).

Disable PIT timer channel 0 since BIOS programs it to fire periodically.
This avoids potential spurious timer interrupts.
2015-03-27 11:53:31 +01:00
Reto Buerki
d1a4eaed0d hw_x86_64: Add fake Timer::ms_to_tics implementation
This makes the scheduler happy and it starts scheduling threads.
2015-03-27 11:53:23 +01:00
Norman Feske
a974726e26 hw: skeleton for building on x86_64
This patch contains the initial code needed to build and bootstrap the
base-hw kernel on x86 64-bit platforms. It gets stuck earlier
because the binary contains 64-bit instructions, but it is started in
32-bit mode. The initial setup of page tables and switch to long mode is
still missing from the crt0 code.
2015-03-27 11:53:16 +01:00